IRNSS Reflectometry and Modeling of Real-time Sea level measurement over the coastal area of India
 

Observation, identification, and impact reduction of climate change, anomalous space weather, ionospheric irregularities and disasters on the agriculture, environment, and communication systems in Thailand, Asia and South America regions
 

Ionosphere parameters monitoring in the polar regions to develop a regional model for fast GNSS precise point positioning (PPP), sponsored by WUT, Poland
 

Identify the threaten on UAV navigation and propose a technique to relief this threaten over Thailand (2023)
 

Simulation study of the mitigation for the plasma bubble effects on GBAS or SBAS using a VHF radar and scintillation over the Southeast Asia (2023)
 

Large-scale International VHF Radar station Development for Understanding of Plasma bubble effects on Global Navigation Satellite System and satellite-based Communication system in Low-latitude region, KMITL Thailand (2021)
 

Project for Studying the Impacts of Atmospheric Changes and Plasma Bubbles on RTK positioning of 5G Technology and Unmanned Automated Vehicle, KMITL Thailand (2022)
 

Development of Ground-based Centimeter-level Maritime Precise PNT Technology, Sejong University, Seoul, South Korea (2021)
 

Simanjuntak AVH, Ansari K, Mase LZ, Setiadi TAP, Muksin U (2025) Spatio-temporal clustering and mechanism analysis of the 2018 Palu earthquake sequence, Geotechnical and Geological Engineering, 43 (414);
https://doi.org/10.1007/s10706-025-03350-5

Simanjuntak AVH, Ansari K, Kadga M, Mase LZ, Susilo A, Sirait AMM, Asnawi Y, Lubis MZ and Andinisari R (2025) Seismicity clustering and source mechanism of deep-moderate earthquake in the Weber Deep, Banda Arc, Transportation Infrastructure Geotechnology, 12(6), 1–15;
https://doi.org/10.1007/s40515-025-00663-z

Ansari K (2025) Analysis of climate variation over India and relationship with the Quasi-Biennial Oscillation, Theoretical and Applied Climatology
https://doi.org/10.1007/s00704-025-05788-2

Ansari K, Panda SK, Kavutarapu V and Jamjareegulgarn P (2025) Ionospheric gradients in multi-constellation global navigation satellite system signals onboard UAV using GIM and Klobuchar model over Thailand region, Advances in Space Research, 1–13
https://doi.org/10.1016/j.asr.2025.07.092

Ansari K, Biswas M, Mukherjee S and Dasgupta S (2025) Geomorphology, elevation and gravity studies from the western Rajasthan basins (Barmer, Bikaner-Nagaur and Jaisalmer), India, Geosciences of the Rajasthan Basins, Springer
https://doi.org/10.1007/978-981-96-3005-9_1

Ansari K, Biswas M, Das S, Mukherjee S (2025) Morphometric, gravity and bathymetric (topographic) analysis of Bayana basin, Rajasthan, India, Geosciences of the Rajasthan Basins
https://doi.org/10.1007/978-981-96-3005-9_3

Ansari K, Biswas M, Das S, Mukherjee S (2025) Morphometric and geophysical studies from a part of Aravalli-Delhi fold belt, Rajasthan, India, Geosciences of the Rajasthan Basins, Springer
https://doi.org/10.1007/978-981-96-3005-9_4

Raha A, Ansari K and Mukherjee S (2025) Geomorphic and geophysical studies from the Sukri River watersheds, Rajasthan, India, Geosciences of the Rajasthan Basins, Springer
https://doi.org/10.1007/978-981-96-3005-9_9

Lubis MZ, Situmorang E, Simanjuntak AVH, Riama NF, Pasma GR, Dwinovantyo A, Kausarian H, Natih NMN, Batara, Ansari K and Jamjareegulgarn P (2025) Indonesian Throughflow, spatial-temporal variability, and its relationship to ENSO events in the Lombok Strait, Egyptian Journal of Aquatic Research, 51 (1), 7-18
https://doi.org/10.1016/j.ejar.2025.01.004

Lubis MZ, Ghazali M, Simanjuntak AVH, Riama NF, Pasma GR, Priatna A, Kausarian H, Suryadarma MW, Pujiyati S, Simanungkalit F, Batara, Ansari K and Jamjareegulgarn P (2025) Decadal and seasonal oceanographic trends influenced by climate changes in the Gulf of Thailand, The Egyptian Journal of Remote Sensing and Space Sciences, 28 (2), 151-166
https://doi.org/10.1016/j.ejrs.2025.02.003

Ansari K, Biswas M, Raha A, Shilpashree ML and Mukherjee S (2025) Morphometric, bathymetric, and gravity analyses of active tectonics in the Indian sector of the petroliferous Gulf of Mannar, Petroleum Research
https://doi.org/10.1016/j.ptlrs.2025.03.003

Mukherjee S, Ansari K, Raha A, Biswas M and Mazumder S (2025) Tectonics of Cauvery basin (India) in onshore and offshore portions, Marine and Petroleum Geology, 171, 107142, 1–11
https://doi.org/10.1016/j.marpetgeo.2024.107142

Chatterjee S, Ansari K, Biswas M, Mukherjee S and Kavitha B (2024) Morphometry and active tectonics of the Konkan coast, western India, Evolving Earth, 2, 100041, 1–14
https://doi.org/10.1016/j.eve.2024.100041

Ansari K, Walo J, Wezka K, Marjanska D and Jamjareegulgarn P (2024) Thin-plate Spline Interpolation Spatial modelling of GNSS retrieved water vapor over Northeast Japan, International Journal of Climatology,
https://doi.org/10.1002/joc.8704

Ansari K, Walo J, Wezka K, Biswas M and Mukherjee S (2024) Regional tidal modelling at European coast using tide gauges and satellite altimetry, Frontiers in Marine Science, 11, 1412736, 1–14;
https://doi.org/10.3389/fmars.2024.1412736

Ansari K, Walo J, Sagir S and Wezka K (2024) Empirical Orthogonal Function based modelling of ionosphere using Turkish GNSS network, Journal of Atmospheric and Solar-Terrestrial Physics, 261, 1-8;
https://doi.org/10.1016/j.jastp.2024.106294

Ansari K, Walo J, Simanjuntak AVH and Wezka K (2024) Evaluation of recent tectonic movement in northeast Japan by using long-term GNSS and tide gauge measurements, Journal of Structural Geology, 188, 1–9;
https://doi.org/10.1016/j.jsg.2024.105258

Simanjuntak AVH and Ansari K (2024) Multivariate hypocenter clustering and source mechanism of 2017 Mw 6.2 and 2019 Mw 6.5 in the South Seram subduction system, Geotechnical and Geological Engineering
https://doi.org/10.1007/s10706-024-02780-x

Ansari K, Walo J, Simanjuntak AVH and Wezka K (2024) Crustal deformation from GNSS Measurement and Earthquake Mechanism along Pieniny Klippen Belt, Southern Poland, Arabian Journal of Geosciences
https://doi.org/10.1007/s12517-024-11983-8

Simanjuntak AVH and Ansari K (2023) Spatial time cluster analysis and earthquake mechanism for unknown active fault (Kalatoa fault) in the Flores Sea, Earth Science Informatics,
https://doi.org/10.1007/s12145-023-01067-8

Ansari K, Panda SK, Kavutarapu V, Jamjareegulgarn P (2023) Towards mitigating the effect of plasma bubbles on GPS positioning accuracy through wavelet transformation over southeast Asian region, Advances in Space Research,
https://doi.org/10.1016/j.asr.2023.04.041

Ansari K (2023) Far-field dislocation modeling of Tohoku-Oki Japan earthquake co-seismic displacements and effect of ellipsoidal curvature of the earth, Geo-Marine Letters, 43 (7), 1–9
https://doi.org/10.1007/s00367-023-00748-z

Ansari K (2023) Investigation of the standalone and combined performance of IRNSS and QZSS constellations over Asia–Pacific region, Wireless Personal Communications, 1-15
https://doi.org/10.1007/s11277-023-10408-1

Ansari K (2023) Review on role of multi-constellation global navigation satellite system-reflectometry (GNSS-R) for real-time sea-level measurements, Structural Geology and Tectonics Field Guidebook, Springer Geology, Springer, Volume 2, 333–358
https://doi.org/10.1007/978-3-031-19576-1_13

Ansari K, de Oliveira-Junior JF and Jamjareegulgarn P (2022) Spatial changes of ocean circulation along the coast of Gulf of Thailand using tide gauge measurements, IEEE Access, 10, 130795–130805
https://doi.org/10.1109/ACCESS.2022.3229212

Ansari K, Seok HW and Jamjareegulgarn P (2022) Quasi zenith satellite system-reflectometry for sea-level measurement and implication of machine learning methodology, , Scientific Reports; 12, 21445
https://doi.org/10.1038/s41598-022-25994-6

Simanjuntak AVH and Ansari K (2022) Seismicity clustering of sequence phenomena in the active tectonic system of backthrust Lombok preceding the sequence 2018 earthquakes, Arabian Journal of Geosciences
https://doi:10.007/s12517-022-10973-y

Ansari K and Jamjareegulgarn P (2022) Effect of weighted PDOP on performance of linear Kalman filter for RTK drone data, IEEE Geoscience and Remote Sensing Letters, 9, 1–4
https://doi.org/10.1109/LGRS.2022.3204323

Ansari K (2022) Modelling and spectral analysis of sea-level trend over Indian coastal area, Marine Geophysical Research; 43 (6), 1–9
https://doi.org/10.1007/s11001-022-09468-y

Ansari K, Bae TS, Singh KD and Aryal J (2022) Multivariate Singular Spectrum Analysis of Seismicity in the Space-Time-Depth-Magnitude Domain: Insight from eastern Nepal and the southern Tibetan Himalaya, Journal of Seismology; 26, 147–166
https://doi.org/10.1007/s10950-021-10057-6

Ansari K and Park KD (2022) Geodetic analysis inside the South Korean Peninsula and impact of the 2011 Tohoku-Oki (TO) earthquake, Acta Geologica Sinica-English Edition
https://doi.org/10.1111/1755-6724.14885

Ansari K and Bae TS (2021) Modelling and Mitigation of Real-time sea level measurement over the coastal area of Japan, Marine Geophysical Research,
https://doi.org/10.1007/s11001-021-09460-y

Ansari K and Sharma SK (2021) Ionospheric TEC variation based on GNSS data over Arabian Peninsula and validation with the Cubic Spline interpolated GIM model, Advances in Space Research, 68 (9), 3814–3820;
https://doi.org/10.1016/j.asr.2021.06.043

Ansari K and Bae TS (2021) Wavelet and power spectrum analysis of global navigation satellite system multipath error modelling and mitigation, International Journal of Satellite Communications and Networking; 39 (6), 626–644;
https://doi.org/10.1002/sat.1405

Ansari K (2021) Review of the geometric model parameters of the Main Himalayan Thrust, Structural Geology and Tectonics Field Guidebook, Springer Geology, Springer, Volume 1, 305–323,
https://doi.org/10.1007/978-3-030-60143-0_10