Search Results - "Talha, Madeeha"

Sq(H) field variations at Sonmiani geomagnetic observatory, Pakistan for solar cycle 24 by Talha, Madeeha, Murtaza, Ghulam, Rasson, Jean L., Ahmed, Nabeel, Peerzada, Mahrukh

“…In this study, Sq(H) field results for Sonmiani geomagnetic observatory (SON), Pakistan are presented first time for solar cycle i.e., Solar Cycle 24. Sonmiani…”
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Observational Overview of the May 2024 G5-Level Geomagnetic Storm: From Solar Eruptions to Terrestrial Consequences by Kwak, Young-Sil, Kim, Jeong-Heon, Kim, Sujin, Miyashita, Yukinaga, Yang, Taeyong, Park, Sung-Hong, Lim, Eun-Kyung, Jung, Jongil, Kam, Hosik, Lee, Jaewook, Lee, Hwanhee, Yoo, Ji-Hyun, Lee, Haein, Kwon, Ryun-Young, Seough, Jungjoon, Nam, Uk-Won, Lee, Woo Kyoung, Hong, Junseok, Sohn, Jongdae, Kwak, Jaeyoung, Kwak, Hannah, Kim, Rok-Soon, Kim, Yeon-Han, Cho, Kyung-Suk, Park, Jaeheung, Lee, Jaejin, Nguyen, Hoang Ngoc Huy, Talha, Madeeha

“…This study reports comprehensive observations for the G5-level geomagnetic storm that occurred from May 10 to 12, 2024, the most intense event since the 2003…”
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Association of High‐Latitude Geomagnetic Perturbations and Pi1 and Pi2 Pulsations With the Three Steps of Auroral Onset Arc Development at Substorm Onset by Talha, Madeeha, Miyashita, Yukinaga

“…Using Time History of Events and Macroscale Interactions during Substorms (THEMIS) data, we studied the stepwise development in high‐latitude geomagnetic…”
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Forecasting hourly f o F 2 over Sonmiani using an artificial neural network algorithm by Tahir, Afnan, Ameen, Muhamamd Ayyaz, Talha, Madeeha, Wu, Falin

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Study the behavior of the ionospheric frequencies at Karachi during three consecutive solar minima of cycle 21, 22 & 23 and their comparison with IRI-2016 by Talha, Madeeha, Ahmed, Nabeel, Murtaza, Ghulam

“…The behavior of critical frequencies of ionospheric E and F2 layers (foE & foF2) along with minimum ionospheric frequency (fmin) is studied for solar minima of…”
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Forecasting hourly foF2 over Sonmiani using an artificial neural network algorithm by Tahir, Afnan, Ameen, Muhamamd Ayyaz, Talha, Madeeha, Wu, Falin

“…•Daily hourly foF2 values have been forecasted over northern crest of EIA, Sonmiani.•The modelling technique used is an artificial neural network (ANN)…”
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Equinoctial asymmetry during solar minima at low to mid latitude by Talha, Madeeha, Ahmed, Nabeel, Ameen, Muhammad Ayyaz, Sapundjiev, Danislav, Murtaza, Ghulam

“…Equinoctial asymmetry (EA) of F2-layer critical frequency (foF2) during minimum years of solar cycle 22–23 (1996) and 23–24 (2008) has been studied for low and…”
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Variation of ionosonde foE and its comparison with IRI-2016 & a local model over Pakistan longitude sector during solar cycle 22 by Ameen, Muhammad Ayyaz, Muhammad, Aisha Ghulam, Abbas, Faizan, Tahir, Afnan, Talha, Madeeha

“…•The study reports the variations in ionosonde deduced foE over Pakistan.•Peak noontime values are observed with annual variation over the country.•IRI-2016…”
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Variation of ionosonde f o E and its comparison with IRI-2016 & a local model over Pakistan longitude sector during solar cycle 22 by Ameen, Muhammad Ayyaz, Muhammad, Aisha Ghulam, Abbas, Faizan, Tahir, Afnan, Talha, Madeeha

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Modelling of foF2 using artificial neural network over Equatorial Ionization Anomaly (EIA) region stations by Ameen, Muhammad Ayyaz, Tahir, Afnan, Talha, Madeeha, Khursheed, Haqqa, Siddiqui, Imran A., Iqbal, Syed Tanweer, Gul, Bushra

“…•An ANN based model has been suggested for foF2 values over EIA region stations during 1958–2008.•The developed model predicts foF2 with a root mean square…”
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Variability of NmF2 during solar minima at the Equatorial Ionization Anomaly crest region by Talha, Madeeha, Ahmed, Nabeel, Ali, Muneeza M., Murtaza, Ghulam

“…The variability of NmF2 during solar minima of solar cycle 21–22, 22–23 and 23–24 has been studied for two low latitude stations, Karachi (Pakistan) and…”
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Modelling of f o F 2 using artificial neural network over Equatorial Ionization Anomaly (EIA) region stations by Ameen, Muhammad Ayyaz, Tahir, Afnan, Talha, Madeeha, Khursheed, Haqqa, Siddiqui, Imran A., Iqbal, Syed Tanweer, Gul, Bushra

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Estimation of MUF(3000)F2 using Earth-ionosphere geometry for Karachi and Multan, Pakistan by Siddique, Hira, Tahir, Afnan, Gul, Iffat, Waris, Bisma binte, Ameen, Muhammad Ayyaz, Talha, Madeeha, Ali, Muneeza Salman, Ansari, Alisha, Javaid, Saba

“…•Earth-ionosphere geometry is used for MUF estimation with h’F2 replacing hmF2.•Linear regression analysis reduces error in MUF estimation to 2 MHz.•The…”
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Estimation of MUF ( 3000 ) F 2 using Earth-ionosphere geometry for Karachi and Multan, Pakistan by Siddique, Hira, Tahir, Afnan, Gul, Iffat, Waris, Bisma binte, Ameen, Muhammad Ayyaz, Talha, Madeeha, Ali, Muneeza Salman, Ansari, Alisha, Javaid, Saba

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Evolution of the Pakistan Space Weather Centre (PSWC) by Tahir, Afnan, Ameen, Muhammad Ayyaz, Talha, Madeeha, Murtaza, Ghulam, Ali, Muneeza Salman, Ali, Gohar

“…This work focuses on the progress of space weather monitoring in Pakistan. Pakistan's first geomagnetic observatory was established in Quetta in 1953. However,…”
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Comparing IRI and regional ionospheric model with ionosonde foF2 measurements in Pakistan by Talha, Madeeha, Murtaza, Ghulam, Ameen, M. Ayyaz

“…Critical frequency of F2 layer acquired by three ionosonde stations, Karachi (KHI, 24.95°N, 67.13°E), Multan (MUL, 30.18°N, 71.48°E) & Islamabad (ISL, 33.75°N,…”
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