Cameron, T., Fiori, R., Perry, G., Spicher, A., Thayaparan, T., (2024), Statistical Analysis of Off‐Great Circle Radio Wave Propagation in the Polar Cap, Radio Science. American Geophysical Union (AGU). link
Cardenas‐O’Toole, A., Zou, S., Ren, J., Wang, Z., Jayachandran, P., (2024), Phase and Amplitude Scintillations Associated With Polar Cap Patches: Statistical and Event Analyses, JGR Space Physics. American Geophysical Union (AGU). link
Spogli, L., Jin, Y., Urbář, J., Wood, A., Donegan-Lawley, E., Clausen, L., Shahtahmassebi, G., Alfonsi, L., Rawlings, J., Cicone, A., Kotova, D., Cesaroni, C., Høeg, P., Dorrian, G., Nugent, L., Elvidge, S., Themens, D., Aragón, M., Wojtkiewicz, P., Miloch, W., (2024), Statistical models of the variability of plasma in the topside ionosphere: 2. Performance assessment, J. Space Weather Space Clim.. EDP Sciences. link
Wood, A., Donegan-Lawley, E., Clausen, L., Spogli, L., Urbar, J., Jin, Y., Shahtahmassebi, G., Alfonsi, L., Rawlings, J., Cicone, A., Kotova, D., Cesaroni, C., Hoeg, P., Dorrian, G., Nugent, L., Elvidge, S., Themens, D., José Brazal Aragon, M., Wojtkiewicz, P., Miloch, W., (2024), Statistical Models of the Variability of Plasma in the Topside Ionosphere: 1. Development and Optimisation, J. Space Weather Space Clim.. EDP Sciences. link
2023
Zalizovski, A., Yampolski, Y., Stanislawska, I., Koloskov, O., Budanov, O., Bogomaz, O., Gavrylyuk, B., Sopin, A., Reznychenko, A., Kashcheyev, A., Kashcheyev, S., & Lisachenko, V. (2023), Long-distance HF radio waves propagation during the April 2023 geomagnetic storm by measurements in Antarctica, in Europe, and aboard RV Noosfera, UAJ. State Institution National Antarctic Scientific Center, Ministry of Education and Science of Ukraine. link
Hamza, A., Song, K., Meziane, K., Jayachandran, P., (2023), Two‐Component Phase Scintillation Spectra in the Auroral Region: Observations and Model, JGR Space Physics. American Geophysical Union (AGU). link
Okoh, D., Obafaye, A., Dare-Idowu, O., Rabiu, B., Kashcheyev, A., Cesaroni, C., Habarulema, J., Nava, B., (2023), Assessment of the performance of the TOPGNSS and ANN-MB antennas for ionospheric measurements using low-cost u-blox GNSS receivers, Geodesy and Geodynamics. Elsevier BV. link
Chartier, A., Steele, J., Sugar, G., Themens, D., Vines, S., Huba, J., (2023), Validating Ionospheric Models Against Technologically Relevant Metrics, Space Weather. American Geophysical Union (AGU). link
Halekas, J., Shaver, S., Azari, A., Fowler, C., Ma, Y., Xu, S., Andersson, L., Bertucci, C., Curry, S., Dong, C., Dong, Y., Fang, X., Garnier, P., Hanley, K., Hara, T., Howard, S., Hughes, A., Lillis, R., Lee, C., Luhmann, J., Madanian, H., Marquette, M., Mazelle, C., McFadden, J., Meziane, K., Mitchell, D., Rahmati, A., Reed, W., Romanelli, N., Schnepf, N., (2023), The Day the Solar Wind Disappeared at Mars, JGR Space Physics. American Geophysical Union (AGU). link
Wang, Y., Yuan, Y., Li, M., Zhang, T., Geng, H., Wang, G., Wen, G., (2023), Effects of Strong Geomagnetic Storms on the Ionosphere and Degradation of Precise Point Positioning Accuracy during the 25th Solar Cycle Rising Phase: A Case Study, Remote Sensing. MDPI AG. link
Shinbori, A., Otsuka, Y., Sori, T., Nishioka, M., Septi, P., Tsuda, T., Nishitani, N., Kumamoto, A., Tsuchiya, F., Matsuda, S., Kasahara, Y., Matsuoka, A., Nakamura, S., Miyoshi, Y., Shinohara, I., (2023), New aspects of the upper atmospheric disturbances caused by the explosive eruption of the 2022 Hunga Tonga–Hunga Ha’apai volcano, Earth Planets Space. Springer Science and Business Media LLC. link
Yang, Z., Morton, Y., Liu, Y., (2023), Time Lags Between Ionospheric Scintillation Detection at Northern Auroral Latitudes and Onset of Geomagnetic Storms, JGR Space Physics. American Geophysical Union (AGU). link
Panasenko, S., Aksonova, K., Burešová, D., Bogomaz, O., Zhivolup, T., Koloskov, O., (2023), Large-scale traveling ionospheric disturbances over central and eastern Europe during moderate magnetic storm period on 22–24 September 2020, Advances in Space Research. Elsevier BV. link
Song, K., Hamza, A., Jayachandran, P., Meziane, K., Kashcheyev, A., (2023), Spectral characteristics of phase fluctuations at high latitude, JGR Space Physics. American Geophysical Union (AGU). link
Luo, X., Li, H., Gong, X., Xie, Z., Li, Y., (2023), BDS-3 B1I Signal Tracking Error Characteristic and Its Advantage in PPP Under Ionospheric Scintillation at Low Latitudes, IEEE Trans. Geosci. Remote Sensing. Institute of Electrical and Electronics Engineers (IEEE). link
Koloskov, O., Jayachandran, P., Yampolski, Y., (2023), On the performance of CARISMA – Akademik Vernadsky station Schumann resonance monitoring, UAJ. State Institution National Antarctic Scientific Center, Ministry of Education and Science of Ukraine. link
Nishimura, Y., Kelly, T., Jayachandran, P., Mrak, S., Semeter, J., Donovan, E., Angelopoulos, V., Nishitani, N., (2023), Nightside High‐Latitude Phase and Amplitude Scintillation during a Substorm using 1‐second Scintillation Indices, JGR Space Physics. American Geophysical Union (AGU). link
Tsagouri, I., Belehaki, A., Themens, D., Jakowski, N., Fuller-Rowell, T., Hoque, M., Nykiel, G., Miloch, W., Borries, C., Morozova, A., Barata, T., Engelke, W., Shim, J., (2023), Ionosphere Variability I: Advances in observational, monitoring and detection capabilities, Advances in Space Research. Elsevier BV. link
Luo, X., Xie, Z., Monico, J., Zhang, B., Pereira, V., Lou, Y., (2023), An ionospheric scintillation index derived from dual-frequency Doppler measurements released by geodetic GNSS receivers operating at 1 Hz, J Geod. Springer Science and Business Media LLC. link
Watson, C., Jayachandran, P., Kashcheyev, A., Themens, D., Langley, R., Marchand, R., Yau, A., (2023), Radio Instrument Package for Lunar Ionospheric Observation: A Concept Study, Radio Science. American Geophysical Union (AGU). link
Bozóki, T., Sátori, G., Williams, E., Guha, A., Liu, Y., Steinbach, P., Leal, A., Herein, M., Atkinson, M., Beggan, C., DiGangi, E., Koloskov, A., Kulak, A., LaPierre, J., Milling, D., Mlynarczyk, J., Neska, A., Potapov, A., Raita, T., Rawat, R., Said, R., Sinha, A., Yampolski, Y., (2023), Day‐To‐Day Quantification of Changes in Global Lightning Activity Based on Schumann Resonances, JGR Atmospheres. American Geophysical Union (AGU). link
Shinbori, A., Sori, T., Otsuka, Y., Nishioka, M., Perwitasari, S., Tsuda, T., Kumamoto, A., Tsuchiya, F., Matsuda, S., Kasahara, Y., Matsuoka, A., Nakamura, S., Miyoshi, Y., Shinohara, I., (2023), Generation of equatorial plasma bubble after the 2022 Tonga volcanic eruption, Sci Rep. Springer Science and Business Media LLC. link
Vadas, S., Figueiredo, C., Becker, E., Huba, J., Themens, D., Hindley, N., Mrak, S., Galkin, I., Bossert, K., (2023), Traveling ionospheric disturbances induced by the secondary gravity waves from the Tonga eruption on 15 January 2022: Modeling with MESORAC/HIAMCM/SAMI3 and comparison with GPS/TEC and ionosonde data, JGR Space Physics. American Geophysical Union (AGU). link
Imtiaz, N., Feyissa, T., Calabia, A., Kashcheyev, A., (2023), Longitudinal dependence of ionospheric irregularities to maximum ring current and PPEF sensed by GNSS and magnetometers during the storm of 4 November 2021, . Authorea, Inc.. link
Elvidge, S., Themens, D., Brown, M., Donegan‐Lawley, E., (2023), What to Do When the F10.7 Goes Out?, Space Weather. American Geophysical Union (AGU). link
Sori, T., Shinbori, A., Otsuka, Y., Nishioka, M., Perwitasari, S., Nishitani, N., (2023), First Detection of Midlatitude Plasma Bubble by SuperDARN During a Geomagnetic Storm on May 27 and 28, 2017, JGR Space Physics. American Geophysical Union (AGU). link
Larson, B., Koustov, A., Themens, D., Gillies, R., (2023), Ionospheric electron density over Resolute Bay according to E-CHAIM model and RISR radar measurements, Advances in Space Research. Elsevier BV. link
Zhao, D., Zhang, X., Li, W., Wang, Q., Hancock, C., Li, C., Roberts, G., Zhang, K., (2023), Extracting ionospheric phase scintillation indicator from GNSS observations with 30-s sampling interval in the high-latitude region, GPS Solut. Springer Science and Business Media LLC. link
Reid, B., Themens, D., McCaffrey, A., Jayachandran, P., Johnsen, M., Ulich, T., (2023), A‐CHAIM: Near‐Real‐Time Data Assimilation of the High Latitude Ionosphere With a Particle Filter, Space Weather. American Geophysical Union (AGU). link
Sori, T., Shinbori, A., Otsuka, Y., Nishioka, M., Perwitasari, S., (2023), Dependence of Ionospheric Responses on Solar Wind Dynamic Pressure During Geomagnetic Storms Using Global Long‐Term GNSS‐TEC Data, JGR Space Physics. American Geophysical Union (AGU). link
Runge, E., Langille, J., Zawada, D., Bourassa, A., Degenstein, D., (2023), Stratospheric trace gas profile retrievals from balloon-borne limb imaging of mid-infrared emission spectra, . Copernicus GmbH. link
Wang, X., Huang, Y., Qu, Z., Vaillancourt, P., Yau, M., Feng, J., Langille, J., Bourassa, A., (2023), Convectively Transported Water Vapor Plumes in the Midlatitude Lower Stratosphere, JGR Atmospheres. American Geophysical Union (AGU). link
Pal, S., Hobara, Y., Shvets, A., Schnoor, P., Hayakawa, M., Koloskov, O., (2023), First Detection of Global Ionospheric Disturbances Associated with the Most Powerful Gamma Ray Burst GRB221009A, Atmosphere. MDPI AG. link
Dorrian, G., Fallows, R., Wood, A., Themens, D., Boyde, B., Krankowski, A., Bisi, M., Dąbrowski, B., Vocks, C., (2023), LOFAR Observations of Substructure Within a Traveling Ionospheric Disturbance at Mid‐Latitude, Space Weather. American Geophysical Union (AGU). link
Koloskov, O., Kashcheyev, A., Bogomaz, O., Sopin, A., Gavrylyuk, B., Zalizovski, A., (2023), Performance Analysis of a Portable Low-Cost SDR-Based Ionosonde, Atmosphere. MDPI AG. link
2022
Meziane, K., Hamza, A., Jayachandran, P., (2022), Turbulence Signatures in High‐Latitude Ionospheric Scintillation, JGR Space Physics. American Geophysical Union (AGU). link
Yasyukevich, Y., & Demyanov, V. (2022), Methodology for GNSS Capability Analysis., Space Weather Impact on GNSS Performance. Springer International Publishing link
Demyanov, V. (2022), GNSS Overview. Space Weather Impact on GNSS Performance, Springer International Publishing. link
Paznukhov, V. V., Sopin, A. A., Galushko, V. G., Kashcheyev, A. S., Koloskov, A. V., Yampolski, Y. M., & Zalizovski, A. V. (2022), Occurrence and Characteristics of Traveling Ionospheric Disturbances in the Antarctic Peninsula Region, Journal of Geophysical Research: Space Physics. American Geophysical Union (AGU link
Prikryl, P., Gillies, R. G., Themens, D. R., Weygand, J. M., Thomas, E. G., & Chakraborty, S. (2022), Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfven waves coupling to the dayside magnetosphere, Annales Geophysicae. Copernicus GmbH. link
Edemskiy, I. K., & Yasyukevich, Y. V. (2022), Auroral Oval Boundary Dynamics on the Nature of Geomagnetic Storm, Remote Sensing. MDPI AG link
Koustov, A. V., Ullrich, S., Ponomarenko, P. V., Ghalamkarian Nejad, M., Themens, D. R., & Gillies, R. G. (2022), Occurrence Rates of SuperDARN Ground Scatter Echoes and Electron Density in the Ionosphere, Radio Science. American Geophysical Union (AGU) link
Wang, Y., Jayachandran, P. T., Ma, Y. -Z., Zhang, Q. -H., Xing, Z. -Y., Ruohoniemi, J. M., et al. (2022), Dependencies of GPS scintillation indices on the ionospheric plasma drift and rate of change of TEC around the dawn sector of the polar ionosphere., Journal of Geophysical Research: Space Physics. link
Alfonsi, L., Bergeot, N., Cilliers, P. J., De Franceschi, G., Baddeley, L., Correia, E., et al. (2022), Review of Environmental Monitoring by Means of Radio Waves in the Polar Regions: From Atmosphere to Geospace, Surveys in Geophysics link
Olugbon, B., Oyeyemi, E. O., & Kashcheyev, A. (2022), Case Studies on the Day-to-Day Variability in the Occurrence of Post-Sunset Equatorial Spread F., Space Weather. American Geophysical Union (AGU) link
Koloskov, O., Nickolaenko, A., Yampolski, Y., Budanov, O., (2022), Electromagnetic Seasons in Schumann Resonance Records, JGR Atmospheres. American Geophysical Union (AGU). link
Zhao, D., Wang, Q., Li, W., Shi, S., Quan, Y., Hancock, C. M., et al. (2022), Validating Ionospheric Scintillation Indices Extracted from 30s-Sampling-Interval GNSS Geodetic Receivers with Long-Term Ground and In-Situ Observations in High-Latitude Regions, Remote Sensing. MDPI AG. link
Meziane, K., Hamza, A. M., & Jayachandran, P. T. (2022), On the Moments of Probability Distribution Function of Amplitude Scintillation in the Polar Region, Journal of Geophysical Research: Space Physics. American Geophysical Union (AGU) link
Sori, T., Otsuka, Y., Shinbori, A., Nishioka, M., & Perwitasari, S. (2022), Geomagnetic conjugacy of plasma bubbles extending to mid-latitudes during a geomagnetic storm on March 1, 2013, Earth, Planets and Space. Springer Science and Business Media LLC link
Reznychenko, M., Bogomaz, O., Kotov, D., Zhivolup, T., Koloskov, O., Lisachenko, V., (2022), Observation of the ionosphere by ionosondes in the Southern and Northern hemispheres during geospace events in October 2021, UAJ. State Institution National Antarctic Scientific Center, Ministry of Education and Science of Ukraine. link
Samuel K. Kristoffersen, William E. Ward, Jeffery Langille, William A. Gault, Aaron Power, Ian Miller, Alan Scott, Dennis Arsenault, Marine Favier, Valerie Losier, Shaojun Lu, Rui Zhang, and Chunmin Zhang (2022), Wind imaging using simultaneous fringe sampling with field-widened Michelson interferometers, Appl. Opt. 61, 6627-6641 link
Thayaparan, T., Villeneuve, H., Themens, D. R., Reid, B., Warrington, M., Cameron, T., & Fiori, R. (2022), Frequency Management System (FMS) for Over-the-Horizon Radar (OTHR) using a Near-Real-Time Ionospheric Model, IEEE Transactions on Geoscience and Remote Sensing link
Shinbori, A., Otsuka, Y., Sori, T., Nishioka, M., Perwitasari, S., Tsuda, T., & Nishitani, N. (2022), Electromagnetic conjugacy of ionospheric disturbances after the 2022 Hunga Tonga-Hunga Ha'apai volcanic eruption as seen in GNSS-TEC and SuperDARN Hokkaido pair of radars observations, Earth, Planets and Space. Springer Science and Business Media LLC link
Lamarche, L. J., Deshpande, K. B., & Zettergren, M. D. (2022), Observations and modeling of scintillation in the vicinity of a polar cap patch, Journal of Space Weather and Space Climate. EDP Sciences. link
Dorrian, G., Fallows, R. A., Wood, A. G., Themens, D. R., Boyde, B., Krankowski, A., et al. (2022), LOFAR observations of refractive scattering from substructure within a traveling ionospheric disturbance at mid-latitude, Wiley link
Nie, W., Rovira-Garcia, A., Li, M., Fang, Z., Wang, Y., Zheng, D., & Xu, T. (2022), The Mechanism for GNSS-Based Kinematic Positioning Degradation at High?Latitudes Under the March 2015 Great Storm., Space Weather. American Geophysical Union (AGU) link
Wang, Y., Themens, D. R., Wang, C., Ma, Y., Reimer, A., Varney, R., et al. (2022), Simultaneous observations of a Polar Cap Sporadic-E Layer by Twin Incoherent Scatter Radars at Resolute, Journal of Geophysical Research: Space Physics. American Geophysical Union (AGU) link
Prikryl, P., Gillies, R. G., Themens, D. R., Weygand, J. M., Thomas, E. G., & Chakraborty, S. (2022), Multi-instrument observations of polar cap patches and traveling ionospheric disturbances generated by solar wind Alfven waves coupling to the dayside magnetosphere, Copernicus GmbH link
Yaysukevich, Yu., Astafyeva, E., Oinats, A., Vesnin, A., Yasyukevich, A., Vasiliev, A., et al. (2022), Multi-instrumental View of the Auroral Oval, Photonics & Electromagnetics Research Symposium (PIERS). IEEE. link
Zhao, D., Li, W., Li, C., Tang, X., Wang, Q., Hancock, C. M., et al. (2022), Ionospheric Phase Scintillation Index Estimation Based on 1 Hz Geodetic GNSS Receiver Measurements by Using Continuous Wavelet Transform, Space Weather. American Geophysical Union (AGU) link
Nie, W., Wang, Y., Rovira-Garcia, A., Zheng, D., & Xu, T. (2022), Effect of the polar cap ionospheric sporadic-E layer on GNSS-based positioning: a case study at Resolute Bay, Canada, September 5, 2012., GPS Solutions. link
Themens, D. R., Watson, C., Zagar, N., Vasylkevych, S., Elvidge, S., McCaffrey, A., et al. (2022), Global propagation of ionospheric disturbances associated with the 2022 Tonga Volcanic Eruption., Geophysical Research Letters link
Zhao, D., Li, W., Wang, Q., Liu, X., Li, C., Hancock, C. M., et al. (2022), Statistical study on the characterization of phase and amplitude scintillation events in the high-latitude region during 2014-2020 based on ISMR, Advances in Space Research. Elsevier BV link
Themens, D. R., Reid, B., Elvidge, S. (2022), ARTIST Ionogram Autoscaling Confidence Scores: Best Practices, URSI Radio Science Letters. International Union of Radio Science (URSI) link
Cherniak, Iurii, Zakharenkova, I. (2022), Development of the storm-induced ionospheric irregularities at equatorial and middle latitudes during the 25-26 August 2018 geomagnetic storm, pace Weather. American Geophysical Union (AGU) link
Conroy, James P., Deshpande, K., Scales, W., Zaghloul, A. (2022), Statistical Analysis of Refractive and Diffractive Scintillation at High Latitudes, Radio Science link
Cameron, T. G., Fiori, R. A. D., Themens, D. R., Warrington, E. M., Thayaparan, T., & Galeschuk, D. (2022), Evaluation of the effect of sporadic-E on high frequency radio wave propagation in the Arctic, Journal of Atmospheric and Solar-Terrestrial Physics. Elsevier BV link
Shinbori, A., Otsuka, Y., Sori, T., Tsugawa, T., & Nishioka, M. (2022), Statistical behavior of large-scale ionospheric disturbances from high latitudes to mid-latitudes during geomagnetic storms using 20-year GNSS-TEC data: Dependence on season and storm intensity, Journal of Geophysical Research: Space Physics. American Geophysical Union (AGU) link
2021
McCaffrey, A., & Jayachandran, P. T. (2021), Comments on "Stochastic TEC Structure Characterization" by Charles Rino, Yu Morton, Brian Breitsch, and Charles Carrano, Journal of Geophysical Research: Space Physics , 124 , https://doi.org/10.1029, Journal of Geophysical Research: Space Physics. American Geophysical Union (AGU) link
Ruck, J. J., & Themens, D. R. (2021), Impacts of Auroral Precipitation on HF Propagation: A Hypothetical Over-the-Horizon Radar Case Study, Space Weather. American Geophysical Union (AGU) link
Migoya-Orue, Y., Alazo-Cuartas, K., Kashcheyev, A., Amory-Mazaudier, C., Radicella, S., Nava, B., et al. (2021), B2 Thickness Parameter Response to Equinoctial Geomagnetic Storms, Sensors. MDPI AG link
Hong, J., Chung, J., Ham, Y., Kwak, Y., & Kim, Y. H. (2021), Inferring the Horizontal Speed of an Ionospheric Irregularity From a Single GPS Scintillation Receiver at High Latitudes, Journal of Geophysical Research: Space Physics. American Geophysical Union (AGU) link
Themens, D. R., Elveidge, S. (2021), Visualizing the Ensemble Kalman Filter, URSI Radio Science Letters. International Union of Radio Science (URSI) link
Forsythe, V. V., Azeem, I., Crowley, G., & Themens, D. R. (2021), Ionospheric Vertical Correlation Distances: Estimation From ISR Data, Analysis, and Implications For Ionospheric Data Assimilation, Radio Science. American Geophysical Union (AGU) link
Themens, D. R., Reid, B., Jayachandran, P. T., Larson, B., Koustov, A. V., Elvidge, S., et al (2021), E-CHAIM as a model of Total Electron Content: Performance and Diagnostics, Space Weather. American Geophysical Union (AGU) link
Liu, L., Morton, Y. J., & Liu, Y. (2021), Machine Learning Prediction of Storm-time High-latitude Ionospheric Irregularities from GNSS-derived ROTI Maps, Geophysical Research Letters link
Madhanakumar, M., Kashcheyev, A., & Jayachandran, P. T. (2021), On the Dependence of Amplitude and Phase Scintillation Indices on Magnetic Field Aligned Angle: A Statistical Investigation at High Latitudes, IEEE Geoscience and Remote Sensing Letters, 1-5 link
Song, K., Meziane, K., Kashcheyev, A., & Jayachandran, P. T. (2021), Multifrequency Observation of High Latitude Scintillation: A Comparison With the Phase Screen Model, IEEE Transactions on Geoscience and Remote Sensing, 1-9 link
Zhao, D., Li, W., Li, C., Hancock, C. M., Roberts, G. W., & Wang, Q. (2021), Analysis on the ionospheric scintillation monitoring performance of ROTI extracted from GNSS observations in high-latitude regions, Advances in Space Research. Elsevier BV. link
Prikryl, P., Rusin, V., & Prikryl, E. A. (2021), High-Rate Precipitation Occurrence Modulated by Solar Wind High-Speed Streams, Atmosphere, 12(9), 1186 link
Watson, C., Themens, D. R., & Jayachandran, P. T. (2021), Development and Validation of Precipitation Enhanced Densities for the Empirical Canadian High Arctic Ionospheric Model (E-CHAIM), Space Weather link
Runge, E., Langille, J., Schentag, C., Bourassa, A., Letros, D., Loewen, P., et al (2021), A balloon-borne imaging Fourier transform spectrometer for atmospheric trace gas profiling, Review of Scientific Instruments, 92(9), 094502 link
Prikryl, P., Rusin, V., Prikryl, E. A., Stastny, P., Turna, M., & Zelenakova, M. (2021), Heavy rainfall, floods, and flash floods influenced by high-speed solar wind coupling to the magnetosphere-ionosphere-atmosphere system, Annales Geophysicae, 39(4), 769-793 link
Themens, D. R., Reid, B., Jayachandran, P. T., Larson, B., Koustov, A. V., Elvidge, S., et al. (2021), E-CHAIM as a model of Total Electron Content: Performance and Diagnostics, Wiley. link
Zhai, C., Shi, X., Wang, W., Hartinger, M. D., Yao, Y., Peng, W., et al. (2021), Characterization of High-m ULF Wave Signatures in GPS TEC Data., Geophysical Research Letters link
Okoh, D., Obafaye, A., Rabiu, B., Seemala, G., Kashcheyev, A., & Nava, B. (2021), New results of ionospheric Total Electron Content measurements from a low-cost Global Navigation Satellite System receiver and comparisons with other data sources., Advances in Space Research link
Demyanov, V., & Yasyukevich, Y. (2021), Space weather: risk factors for Global Navigation Satellite Systems, Solar-Terrestrial Physics, 7(2), 28-47 link
Nishimura, Y., Mrak, S., Semeter, J. L., Coster, A. J., Jayachandran, P. T., Groves, K. M., et al. (2021), Evolution of mid‐latitude density irregularities and scintillation in North America during the 7‐8 September 2017 storm., Journal of Geophysical Research: Space Physics link
Meziane, K., Kashcheyev, A., Jayachandran, P. T., & Hamza, A. M. (2021), A Bayesian inference‐based empirical model for scintillation indices for high–latitude., Space Weather. link
Conroy, J. P., Deshpande, K., Kunduri, B., Varney, R. H., Scales, W., & Zaghloul, A. (2021), Ionospheric Scintillation Data Inversion to Characterize the Structures Associated With a Series of Polar Cap Patches, Radio Science, 56(8) link
Thayyil, J. P., McCaffrey, A. M., Wang, Y., Themens, D. R., Watson, C., Reid, B., et al. (2021), Global Positioning System (GPS) Scintillation Associated with a Polar Cap Patch., Remote Sensing link
Sori, T., Shinbori, A., Otsuka, Y., Tsugawa, T., & Nishioka, M. (2021), The Occurrence Feature of Plasma Bubbles in the Equatorial to Midlatitude Ionosphere During Geomagnetic Storms Using Long-Term GNSS-TEC Data, Journal of Geophysical Research: Space Physics, 126(5) link
Shinbori, A., Otsuka, Y., Tsugawa, T., Nishioka, M., Kumamoto, A., Tsuchiya, F., et al. (2021), Relationship Between the Locations of the Midlatitude Trough and Plasmapause Using GNSS-TEC and Arase Satellite Observation Data, Journal of Geophysical Research: Space Physics, 126(5) link
Olugbon, B., Oyeyemi, E. O., Kascheyev, A., Rabiu, A. B., Obafaye, A. A., Odeyemi, O. O., & Adewale, A. O. (2021), Daytime Equatorial Spread F‐Like Irregularities Detected by HF Doppler Receiver and Digisonde., Space Weather link
Wang, Y., Jayachandran, P. T., Themens, D. R., McCaffrey, A. M., Zhang, Q.-H., David, S., & Chadwick, R. (2021), A Case Study of Polar Cap Sporadic-E Layer Associated with TEC Variations, Remote Sensing link
Yan, T., Langille, J. A., Ward, W. E., Gault, W. A., Scott, A., Bell, A., et al. (2021), A compact static birefringent interferometer for the measurement of upper atmospheric winds: concept, design and lab performance, Copernicus GmbH. link
Inaba, Y., Shiokawa, K., Oyama, S., Otsuka, Y., Connors, M., Schofield, I., et al. (2021), Multi‐Event Analysis of Plasma and Field Variations in Source of Stable Auroral Red (SAR) Arcs in Inner Magnetosphere During Non‐Storm‐Time Substorms, Journal of Geophysical Research: Space Physics link
Wang, Y., Cao, Z., Xing, Z., Zhang, Q., Jayachandran, P. T., Oksavik, K., et al. (2021), GPS Scintillations and TEC Variations in Association with A Polar Cap Arc, Journal of Geophysical Research: Space Physics. link
Guo, K., Vadakke Veettil, S., Weaver, B. J., & Aquino, M. (2021), Mitigating high latitude ionospheric scintillation effects on GNSS Precise Point Positioning exploiting 1-s scintillation indices., Journal of Geodesy, 95(3). link
Zhang, J., & Liu, L. (2021), Mining noise data for monitoring Arctic permafrost by using GNSS interferometric reflectometry, Polar Science, 100649 link
Vadakke Veettil, S., & Aquino, M. (2021), Statistical models to provide meaningful information to GNSS users in the presence of ionospheric scintillation, GPS Solutions, 25(2) link
Yasyukevich, Yu. V., Yasyukevich, A. S., & Astafyeva, E. I. (2021), How modernized and strengthened GPS signals enhance the system performance during solar radio bursts, GPS Solutions, 25(2) link
Radicella, S. M., Alazo-Cuartas, K., Migoya-Orue, Y., & Kashcheyev, A. (2021), Thickness parameters in the empirical modeling of bottomside electron density profiles., Advances in Space Research. link
2020
Shaikh, M. M., Gopakumar, G., Hussein, A., Kashcheyev, A., & Fernini, I. (2020), Daytime GNSS scintillation due to Es over Arabian Peninsula during low solar activity., Results in Physics, 20, 103761. link
Morton, Y. J., Yang, Z., Breitsch, B., Bourne, H., & Rino, C. (2020), Ionospheric Effects, Monitoring, and Mitigation Techniques. Position, Navigation, and Timing Technologies in the 21st Century., Position, Navigation, and Timing Technologies in the 21st Century. Wiley. link
Meziane, K., Kashcheyev, A., Jayachandran, P. T., & Hamza, A. M. (2020), On the latitude-dependence of the GPS phase variation index in the polar region, 2020 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE) link
Burne, S., Bertucci, C., Mazelle, C. X., Morales, L. F., Meziane, K., Espley, J. R., et al (2020), The Structure of the Martian Quasi-perpendicular Supercritical Shock as seen by MAVEN, Wiley link
Prikryl, P., Weygand, J. M., Ghoddousi-Fard, R., Jayachandran, P. T., Themens, D. R., McCaffrey, A. M., et al. (2020), Temporal and spatial variations of GPS TEC and phase during auroral substorms and breakups, Polar Science, 100602 link
Orus-Perez, R., Nava, B., Parro, J., & Kashcheyev, A. (2020), ESA UGI (Unified-GNSS-Ionosphere): An Open-source software to compute precise ionosphere estimates, Advances in Space Research link
Ma, Y., Zhang, Q., Jayachandran, P. T., Oksavik, K., Lyons, L. R., Xing, Z., et al. (2020), Statistical study of the relationship between ion upflow and field-aligned current in the topside ionosphere for both hemispheres during geomagnetic disturbed and quiet time., Journal of Geophysical Research: Space Physics. link
Zalizovski, A., Koloskov, O., Kashcheyev, A., Kashcheyev, S., Yampolski, Y., et al. (2020), Doppler vertical sounding of the ionosphere at the Akademik Vernadsky station., Ukrainian Antarctic Journal, (1), 56-68. link
Meziane, K., Kashcheyev, A., Patra, S., Jayachandran, P. T., & Hamza, A. M. (2020), Solar cycle variations of GPS amplitude scintillation for the polar region, Space Weather link
Zhang, J., Liu, L., & Hu, Y. (2020), Global Positioning System interferometric reflectometry (GPS-IR) measurements of ground surface elevation changes in permafrost areas in northern Canada., The Cryosphere, 14(6), 1875-1888. link
Swarnalingam, N., Wu, D., & Themens, D. R. (2020), Comparison and evaluation of a bottom-up GPS-RO electron density retrieval for D and E regions using radar observations and models., Journal of Atmospheric and Solar-Terrestrial Physics, 105333. link
Rusin, V., Prikryl, P., & Prikryl, E. A. (2020), White-light corona structure observed by naked eye and processed images., Monthly Notices of the Royal Astronomical Society. link
Negale, M., Holmes, J., Parris, R., Ober, D., Dao, E., Kelly, R., et al. (2020), Using Data Assimilation to Reconstruct High-Latitude Polar Cap Patches., Radio Science, 55(6). link
Yasyukevich, Y. V., Kiselev, A. V., Zhivetiev, I. V., Edemskiy, I. K., Syrovatskii, S. V., Maletckii, B. M., & Vesnin, A. M. (2020), SIMuRG: System for Ionosphere Monitoring and Research from GNSS, GPS Solutions, 24(3) link
Koustov, A. V., Ullrich, S., Ponomarenko, P. V., Gillies, R. G., Themens, D. R., & Nishitani, N. (2020), Comparison of SuperDARN peak electron density estimates based on elevation angle measurements to ionosonde and incoherent scatter radar measurements., Earth, Planets and Space, 72(1). link
Themens, D. R., Jayachandran, P. T., Reid, B., & McCaffrey, A. M. (2020), The Limits of Empirical Electron Density Modeling: Examining the Capacity of E-CHAIM and the IRI for Modeling Intermediate (1- to 30-Day) Timescales at High Latitudes, Radio Science, 55(4) link
2019
Wang, Y., Zhang, Q. -H., Ma, Y. -Z., Jayachandran, P. T., Xing, Z. -Y., N., B., & Zhang, S. -R. (2019), Polar ionospheric large-scale structures and dynamics revealed by TEC keogram extracted from TEC maps, Journal of Geophysical Research: Space Physics link
Yamazaki, Y., Matthias, V., Miyoshi, Y., Stolle, C., Siddiqui, T., Kervalishvili, G., et al. (2019), September 2019 Antarctic sudden stratospheric warming: quasi-6-day wave burst and ionospheric effects., Earth and Space Science Open Archive link
Kashcheyev, A., & Nava, B. (2019), Validation of NeQuick 2 Model Topside Ionosphere and Plasmasphere Electron Content Using COSMIC POD TEC., Journal of Geophysical Research: Space Physics link
Goodwin, L. V., Nishimura, Y., Zou, Y., Shiokawa, K., & Jayachandran, P. T. (2019), Mesoscale Convection Structures Associated with Airglow Patches Characterized using Cluster-Imager Conjunctions, Journal of Geophysical Research: Space Physics link
Themens, D. R., Jayachandran, P. T., & McCaffrey, A. M. (2019), Validating the performance of the Empirical Canadian High Arctic Ionospheric Model (E-CHAIM) with in situ observations from DMSP and CHAMP, Journal of Space Weather and Space Climate, 9, A21 link
Perry, G. W., Watson, C., Howarth, A. D., Themens, D. R., Foss, V., Langley, R. B., & Yau, A. W. (2019), Topside ionospheric disturbances detected using radio occultation measurements during the August 2017 solar eclipse., Geophysical Research Letters link
Flynn, C. D., McCaffrey, A. M., Jayachandran, P. T., & Langley, R. B. (2019), Discovery of new code interference phenomenon in GPS observables, GPS Solutions, 23(3) link
Themens, D. R., Jayachandran, P. T., McCaffrey, A. M., Reid, B., & Varney, R. H. (2019), A bottomside parameterization for the Empirical Canadian High Arctic Ionospheric Model (E?CHAIM), Radio Science link
dos Santos Prol, F., Themens, D.R., Hernandez-Pajares, M. et al. (2019), Linear Vary-Chap Topside Electron Density Model with Topside Sounder and Radio-Occultation Data, Surv Geophys link
Prikryl, P., Nikitina, L., & Rusin, V (2019), Rapid intensification of tropical cyclones in the context of the solar wind-magnetosphere-ionosphere-atmosphere coupling, Journal of Atmospheric and Solar-Terrestrial Physics, 183, 36-60 link
Sieradzki, R., & Paziewski, J. (2019), GNSS-based analysis of high latitude ionospheric response on a sequence of geomagnetic storms performed with ROTI and a new relative STEC indicator, Journal of Space Weather and Space Climate, 9, A5 link
McCaffrey, A. M., & Jayachandran, P. T. (2019), Determination of the Refractive Contribution to GPS Phase "Scintillation", Journal of Geophysical Research: Space Physics link
2018
Yasyukevich, Y., Vesnin, A, Perevalova, N. (2018), SibNet - Siberian Global Navigation Satellite System Network: Current state, Solar-Terrestrial Physics, 4(4), 63-72 link
Vadakke Veettil, S., Aquino, M., Spogli, L., & Cesaroni, C. (2018), A statistical approach to estimate Global Navigation Satellite Systems (GNSS) receiver signal tracking performance in the presence of ionospheric scintillation, Journal of Space Weather and Space Climate, 8, A51. link
McGranaghan, R. M., Mannucci, A. J., Wilson, B., Mattmann, C. A., & Chadwick, R. (2018), New Capabilities for Prediction of High-Latitude Ionospheric Scintillation: A Novel Approach With Machine Learning, Space Weather, 16(11), 1817-1846 link
Koustov, A. V., Ponomarenko, P. V., Graf, C. J., Gillies, R. G., & Themens, D. R. (2018), Optimal F Region Electron Density for the PolarDARN Radar Echo Detection Near the Resolute Bay Zenith, Radio Science, 53(9), 1002-1013 link
Yasyukevich, Y., Astafyeva, E., Padokhin, A., Ivanova, V., Syrovatskii, S., & Podlesnyi, A. (2018), The 6 September 2017 X-class solar flares and their impacts on the ionosphere, GNSS and HF radio wave propagation, Space Weather link
Spencer, E., Vadepu, S. K., Srinivas, P., Patra, S., & Horton, W. (2018), The dynamics of geomagnetic substorms with the WINDMI model., Earth, Planets and Space, 70(1) link
Mushini, S. C., Skone, S., Spanswick, E., Donovan, E., & Najmafshar, M. (2018), Proxy index derived from All Sky Imagers for space weather impact on GPS, Space Weather link
D'Angelo, G., Piersanti, M., Alfonsi, L., Spogli, L., Clausen, L. B. N., Coco, I., et al. (2018), The response of high latitude ionosphere to the 2015 St. Patrick's day storm from in situ and ground based observations, Advances in Space Research link
Ma, Y.-Z., Zhang, Q.-H., Xing, Z.-Y., Jayachandran, P. T., Moen, J., Heelis, R. A., & Wang, Y. (2018), Combined contribution of solar illumination, solar activity, and convection to ion upflow above the polar cap, Journal of Geophysical Research: Space Physics link
Kreemer, C., Hammond, W. C., & Blewitt, G. (2018), A Robust Estimation of the 3D Intraplate Deformation of the North American Plate from GPS., Journal of Geophysical Research: Solid Earth link
Wang, Y., Zhang, Q.-H., Jayachandran, P. T., Moen, J., Xing, Z.-Y., Chadwick, R., Lester, M. (2018), Experimental evidence on the dependence of the standard GPS phase scintillation index on the ionospheric plasma drift around noon sector of the polar ionosphere, Journal of Geophysical Research: Space Physics link
Themens, D. R., Jayachandran, P. T., Bilitza, D., Erickson, P. J., Haggstrom, I., Lyashenko, M. V.,Pustovalova, L. (2018), Topside Electron Density Representations for Middle and High Latitudes: A Topside Parameterization for E-CHAIM Based On the NeQuick, Journal of Geophysical Research: Space Physics link
Watson, C., Langley, R. B., Themens, D. R., Yau, A. W., Howarth, A. D., & Jayachandran, P. T (2018), Enhanced Polar Outflow Probe (e-POP) ionospheric radio occultation measurements at high latitudes: Receiver bias estimation and comparison with ground-based observations., Radio Science link
2017
McCaffrey, A. M., Jayachandran, P. T., Langley, R. B., & Sleewaegen, J.-M. (2017), On the accuracy of the GPS L2 observable for ionospheric monitoring., GPS Solutions, 22(1) link
Durgonics, Tibor (2017), Multi-Instrument Observations of Physical Processes in the Arctic Ionosphere and Derived Applications., Kgs. Lyngby : Technical University of Denmark (DTU), 2017. 264 p link
Themens, D. R., Jayachandran, P. T., & Varney, R. H. (2017), Examining the use of the NeQuick bottomside and topside parameterizations at high latitudes, Advances in Space Research link
McCaffrey, A. M., and P. T. Jayachandran (2017), Spectral characteristics of auroral region scintillation using 100 Hz sampling, GPS Solutions link
Jayachandran, P. T., A. M. Hamza, K. Hosokawa, H. Mezaoui, and K. Shiokawa (2017), GPS amplitude and phase scintillation associated with polar cap auroral forms, Journal of Atmospheric and Solar-Terrestrial Physics, 164, 185-191 link
Zhang, Q.-H., et al. (2017), Polar cap hot patches: Enhanced density structures different from the classical patches in the ionosphere, Geophys. Res. Lett., 44 link
Themens D. R., P. T. Jayachandran, I. Galkin, and C. Hall (2017), The Empirical Canadian High Arctic Ionospheric Model (E-CHAIM): NmF2 and hmF2, J. Geophys. Res. Space Physics, 122 link
McCaffrey, A. M., and P. T. Jayachandran (2017), Observation of Sub-Second Variations in Auroral Region Total Electron Content using 100 Hz sampling of GPS observables, Journal of Geophysical Research: Space Physics link
Athieno R., P. T. Jayachandran, and D. R. Themens (2017), A Neural Network based foF2 model for a single station in the polar cap, Radio Sci., 52 link
Mezaoui, H., A. M. Hamza, and P. T. Jayachandran (2017), Dynamic analysis of the polar ionosphere using the GPS signal: Toward an optimization of the cutoff scale, Radio Science, 52(2), 271-281 link
Anthony M. McCaffrey, P.T. Jayachandran, D.R. Themens, R.B. Langley (2017), GPS receiver code bias estimation: A comparison of two methods, Adv. Space Res. 59 (2017) 1984-1991 link
Zou, Y., Y. Nishimura, L. R. Lyons, and K. Shiokawa (2017), Localized Polar Cap Precipitation in Association with Non-storm Time Airglow Patches, Geophysical Research Letters, 43 link
2016
Prikryl, P., et al (2016), GPS phase scintillation at high latitudes during the geomagnetic storm of 17-18 March 2015, J. Geophys. Res. Space Physics, 121, 10,448-10,465 link
Prasad, R., S. Kumar, and P. T. Jayachandran (2016), Receiver DCB estimation and GPS vTEC study at a low latitude station in the South Pacific, J. Atmos. Solar. Terr. Physics, 149, 120-130 link
Watson, C., P. T. Jayachandran, and J. W. MacDougall (2016), GPS TEC variations in the polar cap ionosphere: Solar wind and IMF dependence, J. Geophys. Res. Space Physics, 121 link
Sreeja, V (2016), Impact and mitigation of space weather effects on GNSS receiver performance, Geoscience Letters, 3(1), doi:10.1186/s40562-016-0057-0 link
Athieno, R., and P. T. Jayachandran (2016), MUF variability in the Arctic region: A statistical comparison with the ITU-R variability factors, Radio Sci., 5, 11278-1285 link
Liu, H., J. Yue, Y. Su, and X. Zhan (2016), Ameliorating calculation of ionospheric amplitude scintillation index from under-sampled phase measurement, Advances in Space Research, doi:10.1016/j.asr.2016.06.036 link
Wang, Y., Q. H. Zhang, P. T. Jayachandran, M. Lockwood, S.-R. Zhang, J. Moen, Z. Y. Xing, Y. Z. Ma, and M. Lester (2016), A comparison between large-scale irregularities and scintillations in the polar ionosphere, Geophysical Research Letters, doi:10.1002/2016gl069230. link
Clausen, L. B. N., J. I. Moen, K. Hosokawa, and J. M. Holmes (2016), GPS scintillations in the high latitudes during periods of dayside and nightside reconnection, Journal of Geophysical Research: Space Physics, 121(4), 3293-3309, doi:10.1002/2015ja022199 link
Watson, C., Jayachandran, P.T., and MacDougall, J.W (2016), Characteristics of GPS TEC variations in the polar cap ionosphere, Journal of Geophysical Research: Space Physics, doi:10.1002/2015JA022275 link
Themens, D. R., and P. T. Jayachandran (2016), Solar Activity Variability in the IRI at high latitudes: Comparisons with GPS Total Electron Content, Journal of Geophysical Research: Space Physics, doi:10.1002/2016ja022664 link
Watson, C., P. T. Jayachandran, H. J. Singer, R. J. Redmon, and D. Danskin (2016), GPS TEC response to Pc4 "giant pulsations", J. Geophys. Res. Space Physics, 121, doi:10.1002/2015ja022253 link
Jin, Y., X. Zhou, J. Moen, and M. Hairston (2016), The Auroral-Ionosphere TEC Response to an Interplanetary Shock, Geophys. Res. Lett., 42, doi:10.1002/2016GL067766. link
Zakharov, V. I., Y. V. Yasyukevich, and M. A. Titova (2016), Effect of magnetic storms and substorms on GPS slips at high latitudes, Cosmic Research, 54(1), 20-30, doi:10.1134/S0010952516010147 link
2015
Prikryl, P., Ghoddousi-Fard, R., Ruohoniemi, J. M. and Thomas, E. G. (2015), GPS Phase Scintillation at High Latitudes during Two Geomagnetic Storms, Auroral Dynamics and Space Weather (eds Y. Zhang and L. J. Paxton), John Wiley & Sons, Inc, Hoboken, NJ. link
P. Prikryl, P. T. Jayachandran, R. Chadwick, and T. D. Kelly (2015), Climatology of GPS phase scintillation at northern high latitudes for the period from 2008 to 2013, Ann. Geophys., 33, 531-545, doi:10.5194/angeo-33-531-2015. link
P. Prikryl, R. Ghoddousi-Fard, E. G. Thomas, J. M. Ruohoniemi, S. G. Shepherd, P. T. Jayachandran, D. W. Danskin, E. Spanswick, Y. Zhang, Y. Jiao, and Y. T. Morton (2015), GPS Phase Scintillation at high-latitudes during geomagnetic storms of 7-17 March 2012 - Part 1: The North American Sector, Ann. Geophys., 33, 637-656, doi:10.5194/angeo-33-637-2015. link
P. Prikryl, R. Ghoddousi-Fard, L. Spogli, C. N. Mitchell, G. Li, B. Ning, P. J. Cilliers, V. Sreeja, M. Acquino, M. Terkildsen, P. T. Jayachandran, Y. Jiao, Y. T. Morton, J. M. Ruohoniemi, E. G. Thomas, Y. ZhangA. T. Weatherwax, L. Alfonsi, G. De Franceschi, and V. Romano (2015), GPS phase scintillation at high latitudes during geomagnetic storms of 7-17 March 2012 - Part 2: interhemispheric comparison, Ann. Geophys., 33, 657-670, doi:10.5194/angeo-33-657-2015. link
R. Athieno, P. T. Jayachandran, D. R. Themens, and D. W. Danskin (2015), Comparison of observed and predicted MUF (3000)F2 in the polar cap region, Radio. Sci., 50, doi:10.1002/2015RS005725. link
H. Mezaoui, A. M. Hamza, and P. T. Jayachandran (2015), High-latitude Scintillations: Exploring the Castaing Distribution, J. Geophys. Res., Space Physics, J. Geophys Res. Space Physics, 120, doi:10.1002/2015JA021304. link
C. Watson, P. T. Jayachandran, H. J. Singer, R. J. Redmon, and D. W. Danskin (2015), Large amplitude GPS TEC variations associated with Pc5-6 magnetic field variations observed on the ground and at geosynchronous orbit, J. Geophys. Res. Space Physics, 120, doi:10.1002/2015JA021517. link
D. R. Themens, P. T. Jayachandran, and R. B. Langley (2015), The nature of GPS differential receiver bias variability: An examination in the polar cap region, J. Geophys. Res. Space Physics, 120, 8155-8175, doi:10.1002/2015JA021639. link
K. Hosokawa, J. I. Moen, P. T. Jayachandran, K. Shiokawa, and Y. Ostuka (2015), An unusual strolling motion of polar cap patches: an implication of the influence of tail reconnection on the nightside polar cap convection, J. Geophys. Res., Submitted. link
P. T. Jayachandran, J. W. MacDougall, Y. Ebihara, N. Sato, and A. S. Yikimatu (2015), Response of the equatorward boundary of the ion auroral oval to the N-S transition of the interplanetary magnetic field, JASTP, Submitted. link
2014
R. Burston and P. T. Jayachandran (2014), Effect of grid boundary expansion to include one additional data source on ionospheric imaging accuracy, IEEE Trasn. Geo. and Rem. Sens., doi:10.1109/TGRS.2013.2295653. link
R. Burston, K. Hodges, I. Astin, and P. T. Jayachandran (2014), Automated identification and tracking of polar-cap plasma patches at solar minimum, Ann. Geophys., 32, 197-206, doi:10.5194/angeo-32-197-2014. link
D. R. Themens, P. T. Jayachandran, M. J. Nicolls, and J. W. MacDougall (2014), A top to bottom evaluation of IRI 2007 within the polar cap, J. Geophys. Res., Space Physics, 119, doi:10.1002/2014JA020052. link
Datta-Barua, S., T. Walter, G. S. Bust, and W. Wanner (2014), Effects of solar cycle 24 activity on WAAS navigation, Space Weather, 12(1), 46-63, doi:10.1002/2013sw000982. link
H. Mezaoui, A. M. Hamza, and P. T. Jayachandran (2014), Investigating high-latitude ionospheric turbulence using global positioning system data, Geophys Res., Lett., 41, doi:10.1002/2014GL061331. link
P. Prikryl, P. T. Jayachandran, S. C. Mushini, and I. G. Richardson (2014), High-latitude GPS phase scintillation and cycle slips during high-speed solar wind streams and interplanetary coronal mass ejections: A superposed epoch analysis, Earth, Planets and Space, 66:62 doi:10.1186/1880-5981-66-62. link
P. Kieft, M. Aquino, and A. Donaldson (2014), Using ordinary kriging for the creation of scintillation maps, doi:10.5772/58781. link
Y. Su, H. Liu, J. Yue, Y. Yang (2014), Characterization of ionospheric amplitude scintillations using wavelet entropy detrended GNSS data, Advances in Space Research, doi:10.1016/j.asr.2014.08.012. link
M. Ghezelbash, A. V. Koustov, D. R. Themens, and P. T. Jayachandran (2014), Seasonal and diurnal variations of PolarDARN F region echo occurrence in the polar cap and their causes, J. Geophys. Res., Space Physics, 119, 10,426-10,439, doi:10.1002/2014JA020726. link
A. V. Koustov, P. V. Ponomarenko, M. Ghezelbash, D. R. Themens, and P. T. Jayachandran (2014), Electron density and electric field over Resolute Bay and F region echo detection with the Rankin Inlet and Inuvik SuperDARN radars, Radio Sci.,49, 1194-1205, doi:10.1002/2014RS005579. link
2013
P. Prikryl, R. Ghoddousi-Fard, S. R. kunduri, E. G. Thomas, A. J. Coster, P. T. Jayachandran, E. Spanswick, and D. W. Danskin (2013), GPS phase scintillation and proxy index at high-latitudes during a moderate geomagnetic storm, Ann. Geophys., 31, 805, doi:10.5194/angeo-31-805-2013. link
P. Prikryl, V. Sreeja, M. Aquino, P. T. Jayachandran (2013), Probabilistuc forecasting of ionospheric scintillation and GNSS receiver signal tracking performance at high latitudes, Annals of Geophysics, 56, 2, R0222, doi:10.4401/ag-6219. link
P. Prikryl, Y. Zhang, Y. Ebihara, R. Ghoddousi-Fard, P. T. Jayachandran, J. Kinrade, C. N. Mitchell, A. T. Weatherwax, G. Bust, P. J. Cilliers, L. Spogli, L. Alfonsi, V. Romano, B. Ning, G. Li, M. Jarvis, D. W. Danskin, E. Spanswick, E. Donovan, and M. Terkildsen (2013), An interhemespheric comparison of GPS phase scintillation with auroral emission observed at the South pole and from the DMSP satellite, Annals of Geophysics, 56, R0216, doi:10.4401/ag-6227. link
2012
Rodger, C. J., M. A. Clilverd, A. J. Kavanagh, C. E. J. Watt, P. T. Verronen, and T. Raita (2012), Contrasting the responses of three different ground-based instruments to energetic electron precipitation, Radio Science, 47(2), doi:10.1029/2011rs004971. link
D. R. Themens, P. T. Jayachandran, R. B. Langley, J. W, MacDougall, and M. J. Nicolls (2012), Determining Receiver Biases in GPS-derived Total Electron Content in the Auroral Oval and Polar Cap region Using Ionosonde measurements, GPS solutions, doi:10.1007/s10291-012-0284-6. link
P. T. Jayachandran, K. Hosokowa, K. Shiokawa, Y. Otsuka, C. Watson, S. C. Mushini, J. W. MacDougall, P. Prikryl, R. Chadwick, and T. D. Kelly (2012), GPS total electron content variations associated with poleward moving sun aligned arcs, J. Geophys. Res., 117, A05310, doi:10.1029/2011JA017423. link
D. Mori, A. V. Koustov, P. T. Jayachandran, and N. Nishitani (2012), Resolute Bay CADI ionosonde drifts, PolarDARN HF velocities and SuperDARN cross polar cap potential, Rad. Sci., 47, RS3003, doi:10.1029/2011RS004947. link
P. Prikryl, P. T. Jayachandran, S. C. Mushini, and I. G. Richardson (2012), Towards probabilistic forecasting of high-latitude GPS phase scintillation, Space Weather, 10, S08005, doi:10.1029/2012SW000800. link
2011
C. Watson, P. T. Jayachandran, E. Spanswick, E. F. Donovan, and D. W. Danskin (2011), GPS TEC technique for observation of the evolution of substorm particle injection, . Geophys. Res., 116, A00I90, doi:10.1029/2010JA015732. link
J. W. MacDougall and P. T. Jayachandran (2011), Solar terminator and auroral sources for traveling ionospheric disturbances in the midlatitude F region, J. Atmos. Solar. Terr. Phys., 1364, doi:10.1016/j.jastp.2011.10.009. link
P. Prikryl, P. T. Jayachandran, S. C. Mushini, and R. Chadwick (2011), Climatology of GPS phase scintillation and HF radar backscatter for the high-latitude ionosphere under solar minimum conditions, Ann. Geophys., 29, 377, doi:10.5194/angeo-29-377-2011. link
S. C. Mushini, P. T. Jayachandran, R. B. Langley, J. W. MacDougall, and D. Pokhotelov (2011), Improved amplitude and phase scintillation indices derived from wavelet detrended high latitude GPS data, GPS Solut., doi:10.1007/s10291-011-0238-4. link
P. Prikryl, L. Spogli, P. T. Jayachandran, J. Kinrade, C. N. Mitchell, B. Ning, G. Li, P. J. Cilliers, M. Terkildsen, D. W. Danskin, E. Spanswick, E. Donovan, A. T. Weatherwax, W. A. Bristow, L. Alfonsi, G. De Franceschi, V. Romano, C. M. Ngwira, and B. D. L. Opperman (2011), Interhemespheric comparison of GPS phase scintillation at high latitudes during the magnetic-cloud-induced geomagnetic storm of 5-7 April 2010, Ann. Geophys., 29, 2287, doi:10.5194/angeo-29-2287-2011. link
J. W. MacDougall, M. A. Abdu, I. Batista, R. Buriti, A. F. Medeiros, P. T. Jayachandran, and G. Borba (2011), Spaced transmitter measurements of medium scale traveling ionospheric disturbances near the equator, Geophys. Res. Lett., 38, L16806, doi:10.1029/2011GL048598. link
P. T. Jayachandran, C. Watson, I. J. Rae, J. W. MacDougall, D. W. Danskin, R. Chadwick, T. D. Kelly, P. Prikryl, K. Meziane, and K. Shiokawa (2011), High-latitude GPS TEC changes associated with a sudden magnetospheric compression, Geophys. Res. Lett., 38, L23104, doi:10.1029/2011GL050041. link
2010
A. V. Dmitriev, P. T. Jayachandran, and L-C. Tsai (2010), Elliptical model of cut-off boundaries for the solar energetic particles measured by POES satellites in December 2006, J. Geophys. Res., 115, A12244, doi:10.1029/2010JA015380. link
P. V. Ponomarenko, J.-P.St. Maurice, G. C. Hussey, and A. V. Koustov (2010), HF ground scatter from the polar cap: Ionospheric propgation and ground surface effects, J. Geophys. Res., 115, A10310, doi:10.1029/2010JA015828 link
Pokhotelov, D., P. T. Jayachandran, C. N. Mitchell, J. W. MacDougall, and M. H. Denton (2010), GPS tomography in the polar cap: comparison with ionosondes and in-situ spacecraft data, GPS Sol., doi: 10.1007/s10291-010-0170-z. link
Pokhotelov, D., P. T. Jayachandran, C. N. Mitchell, and M. H. Denton (2010), High-latitude ionospheric response to co-rotating interaction region- and coronal mass ejection-driven geomagnetic storms revealed by GPS tomography and ionosondes, Proc. R. Soc. A, doi:10.1098/rspa.2010.0080. link
Prikryl, P., P. T. Jayachandran, S. C. Mushini, D. Pokhotelov, J. W. MacDougall., E. Donovan, E. Spanswick, and J.-P. St-Maurice (2010), GPS TEC, Scintillations and cycle slips observed at high latitudes during solar minimum, Ann. Geophys., 28, 1307-1316, doi:10.5194/angeo-28-1307-2010. link
2009
Jayachandran, P.T., K. Hosokawa, J. W. MacDougall., S. Mushini, R. B. Langley, and K. Shiokawa (2009), GPS total electron content variations associated with a polar cap arc, J. Geophys. Res., 114, A12304, doi:10.1029/2009ja014916. link
MacDougall, J. W., G. Li, and P. T. Jayachandran (2009), Traveling ionospheric disturbances near London, Canada, J. Atmos. Solar Terr. Physics, 71, 2077, doi:10.1016/j.jastp.2009.09.016. link
MacDougall, J. W., M. A. Abdu, I. Batista, P. Fegundes, Y. Sahai, and P. T. Jayachandran (2009), On the production of travelling ionospheric disturbances by gravity waves, J. Atmos. Solar Terr. Physics, 71, 2013, doi:10.1016/j.jastp.2009.09.006. link
Pokhotelov, D., C. N. Mitchell, P. T. Jayachandran, J. W. MacDougall, and M. H. Denton (2009), Ionospheric response to the CIR-driven geomagnetic storm of October 2007, J. Geophys. Res., 114, A12311, doi:10.1029/2009JA014216. link
Watson, C., and P. T. Jayachandran (2009), Azimuthal expansion of the dipolarization at geo-synchronous orbits associated with substorms, Annales Geophysicae 27, 1113-1118, doi:10.5194/angeo-27-1113-2009. link
Jayachandran, P. T., R. B. Langley, J. W. MacDougall, S. C. Mushini, D. Pokhotelov, A. M. Hamza, I. R. Mann, D. K. Milling, Z. C. Kale, R. Chadwick, T. Kelly, D. W. Danskin, and C. S. Carrano (2009), The Canadian high arctic ionospheric network (CHAIN), Radio Sci., 44, RS0A03, doi:10.1029/2008RS004046. link
Sadighi, S., P. T. Jayachandran, N. Jakowski, and J. W. Macdougall (2009), Validation of the CHAMP radio occultation data using the Canadian Advanced Digital Ionosonde in the polar regions, J. Adv. Space Res., doi:10.1016/j.asr.2009.07.016. link
Mushini, S. C., P. T. Jayachandran, R. B. Langley, J. W. MacDougall (2009), Use of varying shell heights derived from ionosonde data in calculating vertical total electron content (TEC) using GPS - New method, J. Adv. Space Res., doi:10.1016/j.asr.2009.07.015. link
2008
Pokhotelov, D., C. N. Mitchell, P. S. J. Spencer, M. R. Hairston, and R. A. Heelis (2008), Ionospheric storm time dynamics as seen by GPS tomography and in situ spacecraft observations, J. Geophys. Res., 113, A00A16, doi:10.1029/2008JA013109. link
Jayachandran, P. T., N. Sato, Y. Ebihara, A. S. Yukimatu, A. Kadokura, J. W. MacDougall, E. F. Donovan, and K. Liou (2008), Oscillations of the equatorward boundary of the ion auroral oval - radar observations, J. Geophys. Res., 113, A08208, doi:10.1029/2007JA012870. link
MacDougall, J. W., and P. T. Jayachandran (2008), Winter cross polar cap current estimation, Advances in Space Res., doi:10.1016/j.asr.2007.09.019. link
2007
Jayachandran, P. T., J. W. MacDougall, A. M. Hamza, and M. G. Henderson (2007), Observations of dipolarization at geosynchronous orbits and its response in the polar cap convection during extreme southward interplanetary magnetic field conditions, J. Geophys. Res., 112, A10216, doi:10.1029/2007JA012544. link
MacDougall, J., and P. T. Jayachandran (2007), Polar patches: Auroral zone precipitation effects, J. Geophys. Res., 112, A05312, doi:10.1029/2006JA011930. link
Jayachandran, P. T., and J. W. MacDougall (2007), Substorm time scales from polar cap convection measurements, Earth Planets Space, 59, 329-e33, doi:10.1186/BF03352026. link
