Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Rasim Shahzad"'
Autor:
Munawar Shah, Rasim Shahzad, Punyawi Jamjareegulgarn, Bushra Ghaffar, José Francisco de Oliveira-Júnior, Ahmed M. Hassan, Nivin A. Ghamry
Publikováno v:
Atmosphere, Vol 14, Iss 8, p 1236 (2023)
The identification of atmospheric and ionospheric variations through multiple remote sensing and global navigation satellite systems (GNSSs) has contributed substantially to the development of the lithosphere-atmosphere-ionosphere coupling (LAIC) phe
Externí odkaz:
https://doaj.org/article/b7c13c3054964e5ba2b9484acc06af50
Autor:
Rasim Shahzad, Munawar Shah, M. Arslan Tariq, Andres Calabia, Angela Melgarejo-Morales, Punyawi Jamjareegulgarn, Libo Liu
Publikováno v:
Remote Sensing, Vol 15, Iss 10, p 2687 (2023)
We analyze vertical total electron content (vTEC) variations from the Global Navigation Satellite System (GNSS) at different latitudes in different continents of the world during the geomagnetic storms of June 2015, August 2018, and November 2021. Th
Externí odkaz:
https://doaj.org/article/ab6a892f60f3414aa747c28dd7dba29d
Autor:
Muhammad Umar Draz, Munawar Shah, Punyawi Jamjareegulgarn, Rasim Shahzad, Ahmad M. Hasan, Nivin A. Ghamry
Publikováno v:
Remote Sensing, Vol 15, Iss 7, p 1904 (2023)
Global Navigation Satellite System (GNSS)- and Remote Sensing (RS)-based Earth observations have a significant approach on the monitoring of natural disasters. Since the evolution and appearance of earthquake precursors exhibit complex behavior, the
Externí odkaz:
https://doaj.org/article/cd290d8ec8eb4b38ba3e2c4e83eeb533
Autor:
Munawar Shah, Rasim Shahzad, Muhsan Ehsan, Bushra Ghaffar, Irfan Ullah, Punyawi Jamjareegulgarn, Ahmed M. Hassan
Publikováno v:
Atmosphere, Vol 14, Iss 3, p 601 (2023)
Global Navigation Satellite System (GNSS)-based ionospheric anomalies are nowadays used to identify a possible earthquake (EQ) precursor and hence a new research topic in seismic studies. The current study also aims to provide an investigation of ion
Externí odkaz:
https://doaj.org/article/cacd7e9306bd46b4aeae227f04ded081
Autor:
Rasim Shahzad, Amna Hafeez, Jose Francisco De Oliveira-Junior, Arslan Ahmed, Punyawi Jamjareegulgarn, Najam Abbas Naqvi
Publikováno v:
Natural and Applied Sciences International Journal (NASIJ). 3:13-33
The Total Electron Content (TEC) from the Sukkur GPS station is studied during the final phase of the solar cycle 24 and the initial phase of solar cycle 25 (2019-2020). TEC comparisons are made with three international reference ionospheric models:
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a84a9be30836c8d227739f49a93cf289
https://doi.org/10.47264/idea.nasij/3.1.2
https://doi.org/10.47264/idea.nasij/3.1.2
Autor:
José Francisco Francisco Oliveira Junior, Munawar Shah, Ayesha Abbas, M. Shahid Iqbal, Rasim Shahzad, Givanildo de Gois, Marcos Vinícius da Silva, Alexandre Maniçoba da Rosa Ferraz Jardim, Amaury de Souza
Publikováno v:
Theoretical and Applied Climatology. 149:843-862
The phenomena of drought is common in the world, particularly in Pakistan. Drought in Pakistan has been studied in terms of its spatial and temporal variability, as well as its impact on the El Niño-Southern Oscillation (ENSO) cycle. The objectives
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ce8fa06c14dfaab2c978efbe69969bb
https://doi.org/10.1007/s00704-022-04082-9
https://doi.org/10.1007/s00704-022-04082-9
Publikováno v:
Natural Hazards. 111:2097-2115
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::055fcf0faa3aaff28509918dddef51d6
https://doi.org/10.1007/s11069-021-05131-8
https://doi.org/10.1007/s11069-021-05131-8
Autor:
Rasim Shahzad, Munawar Shah, Ayesha Abbas, Amna Hafeez, Andres Calabia, Angela Melgarejo-Morales, Najam Abbas Naqvi
Scintillations of transionospheric satellite signals during geomagnetic storms can severely threaten navigation accuracy and the integrity of space assets. We analyze vertical Total Electron Content (vTEC) variations from the Global Navigation Satell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::734d2d6b9f79f9d7f91c3e7fe0ddb7a7
https://doi.org/10.5194/angeo-2022-18
https://doi.org/10.5194/angeo-2022-18
Publikováno v:
2021 Seventh International Conference on Aerospace Science and Engineering (ICASE).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa35ebdec4784c61b13f4568ade32102
https://doi.org/10.1109/icase54940.2021.9904274
https://doi.org/10.1109/icase54940.2021.9904274
Publikováno v:
Astrophysics and Space Science. 366
The comparative analysis of measured and modelled Vertical Total Electron Content (VTEC) in low, mid and high latitude assists in the correction of Global Positioning System (GPS) measurements. In this study, we compare VTEC from GPS and Internationa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b65af38624ed53ed4b0c06a8e98abc6
https://doi.org/10.1007/s10509-021-03947-1
https://doi.org/10.1007/s10509-021-03947-1