Cloud-to-Ground lightning observations over the Western Antarctic region
This paper presents the observations and characterization of Cloud-to-Ground (CG) lightning activity in Western Antarctica in a region that covers the Amundsen/Bellingshausen Sea (ABS), the Antarctic Peninsula (AP) and the Weddell Sea (WS). Lightning data have been collected by a lightning detector...
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Online Access: | http://eprints.utm.my/87382/ https://doi.org/10.1016/j.polar.2019.05.002 |
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ftunivmalaysia:oai:generic.eprints.org:87382 2023-11-12T04:03:07+01:00 Cloud-to-Ground lightning observations over the Western Antarctic region Yusop, Norbayah Ahmad, Mohd. Riduan Abdullah, Mardina Zainudin, Siti Khalijah Wan Mohd. Nor, Wan Nur Arina Alhasa, Kemal Maulana Mohd. Esa, Mona Riza Mohamad Sabri, Muhammad Haziq Suparta, Wayan Gulisano, Adriana Maria Cooray, Vernon 2019-06 http://eprints.utm.my/87382/ https://doi.org/10.1016/j.polar.2019.05.002 unknown Elsevier B. V. Yusop, Norbayah and Ahmad, Mohd. Riduan and Abdullah, Mardina and Zainudin, Siti Khalijah and Wan Mohd. Nor, Wan Nur Arina and Alhasa, Kemal Maulana and Mohd. Esa, Mona Riza and Mohamad Sabri, Muhammad Haziq and Suparta, Wayan and Gulisano, Adriana Maria and Cooray, Vernon (2019) Cloud-to-Ground lightning observations over the Western Antarctic region. Polar Science, 20 . pp. 84-91. ISSN 1873-9652 TK Electrical engineering. Electronics Nuclear engineering Article PeerReviewed 2019 ftunivmalaysia https://doi.org/10.1016/j.polar.2019.05.002 2023-10-24T18:04:24Z This paper presents the observations and characterization of Cloud-to-Ground (CG) lightning activity in Western Antarctica in a region that covers the Amundsen/Bellingshausen Sea (ABS), the Antarctic Peninsula (AP) and the Weddell Sea (WS). Lightning data have been collected by a lightning detector (Boltek LD-350) and an atmospheric electric field mill (EFM-100) sensors deployed at the Carlini Base on the Antarctic Peninsula (CARL: 62.23oS, 58.63oW). The flash rate and flash multiplicity were analysed for three different seasons within a 1,000 km range, starting at the end of summer (February 2017) and ending in winter (July 2017). Three storm days for each month (within the 1,000 km radius from the LD sensor) with three composite active thunderstorms (labelled as Storm region A, B, and C) for each day have been selected from a collection of storm days between February and July 2017. A total of 355,899 flashes have been recorded with 156,190 Positive CG and 199,709 Negative CG flashes from these 54 thunderstorms. In total, Positive CG flash counts made up around 43.9% of the total detected CG flashes. Most of the Positive CG flashes (>80%) had only 1 or 2 strokes with a maximum number of 5. For Negative CG flashes, the average multiplicity and the maximum multiple stroke were 1.2 and 16 respectively. Most CG flashes were detected during the summer and fall months. Positive CG flashes were prevalent in Western Antarctic storms even during the winter. The mean, median and range of the ratio of Positive CG to Negative CG flashes were 0.7, 0.718 and 0.217–1.279, respectively. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea Polar Science Polar Science Weddell Sea Universiti Teknologi Malaysia: Institutional Repository Antarctic The Antarctic Antarctic Peninsula Weddell Sea Bellingshausen Sea Weddell Polar Science 20 84 91 |
institution |
Open Polar |
collection |
Universiti Teknologi Malaysia: Institutional Repository |
op_collection_id |
ftunivmalaysia |
language |
unknown |
topic |
TK Electrical engineering. Electronics Nuclear engineering |
spellingShingle |
TK Electrical engineering. Electronics Nuclear engineering Yusop, Norbayah Ahmad, Mohd. Riduan Abdullah, Mardina Zainudin, Siti Khalijah Wan Mohd. Nor, Wan Nur Arina Alhasa, Kemal Maulana Mohd. Esa, Mona Riza Mohamad Sabri, Muhammad Haziq Suparta, Wayan Gulisano, Adriana Maria Cooray, Vernon Cloud-to-Ground lightning observations over the Western Antarctic region |
topic_facet |
TK Electrical engineering. Electronics Nuclear engineering |
description |
This paper presents the observations and characterization of Cloud-to-Ground (CG) lightning activity in Western Antarctica in a region that covers the Amundsen/Bellingshausen Sea (ABS), the Antarctic Peninsula (AP) and the Weddell Sea (WS). Lightning data have been collected by a lightning detector (Boltek LD-350) and an atmospheric electric field mill (EFM-100) sensors deployed at the Carlini Base on the Antarctic Peninsula (CARL: 62.23oS, 58.63oW). The flash rate and flash multiplicity were analysed for three different seasons within a 1,000 km range, starting at the end of summer (February 2017) and ending in winter (July 2017). Three storm days for each month (within the 1,000 km radius from the LD sensor) with three composite active thunderstorms (labelled as Storm region A, B, and C) for each day have been selected from a collection of storm days between February and July 2017. A total of 355,899 flashes have been recorded with 156,190 Positive CG and 199,709 Negative CG flashes from these 54 thunderstorms. In total, Positive CG flash counts made up around 43.9% of the total detected CG flashes. Most of the Positive CG flashes (>80%) had only 1 or 2 strokes with a maximum number of 5. For Negative CG flashes, the average multiplicity and the maximum multiple stroke were 1.2 and 16 respectively. Most CG flashes were detected during the summer and fall months. Positive CG flashes were prevalent in Western Antarctic storms even during the winter. The mean, median and range of the ratio of Positive CG to Negative CG flashes were 0.7, 0.718 and 0.217–1.279, respectively. |
format |
Article in Journal/Newspaper |
author |
Yusop, Norbayah Ahmad, Mohd. Riduan Abdullah, Mardina Zainudin, Siti Khalijah Wan Mohd. Nor, Wan Nur Arina Alhasa, Kemal Maulana Mohd. Esa, Mona Riza Mohamad Sabri, Muhammad Haziq Suparta, Wayan Gulisano, Adriana Maria Cooray, Vernon |
author_facet |
Yusop, Norbayah Ahmad, Mohd. Riduan Abdullah, Mardina Zainudin, Siti Khalijah Wan Mohd. Nor, Wan Nur Arina Alhasa, Kemal Maulana Mohd. Esa, Mona Riza Mohamad Sabri, Muhammad Haziq Suparta, Wayan Gulisano, Adriana Maria Cooray, Vernon |
author_sort |
Yusop, Norbayah |
title |
Cloud-to-Ground lightning observations over the Western Antarctic region |
title_short |
Cloud-to-Ground lightning observations over the Western Antarctic region |
title_full |
Cloud-to-Ground lightning observations over the Western Antarctic region |
title_fullStr |
Cloud-to-Ground lightning observations over the Western Antarctic region |
title_full_unstemmed |
Cloud-to-Ground lightning observations over the Western Antarctic region |
title_sort |
cloud-to-ground lightning observations over the western antarctic region |
publisher |
Elsevier B. V. |
publishDate |
2019 |
url |
http://eprints.utm.my/87382/ https://doi.org/10.1016/j.polar.2019.05.002 |
geographic |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Bellingshausen Sea Weddell |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Bellingshausen Sea Weddell |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea Polar Science Polar Science Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea Polar Science Polar Science Weddell Sea |
op_relation |
Yusop, Norbayah and Ahmad, Mohd. Riduan and Abdullah, Mardina and Zainudin, Siti Khalijah and Wan Mohd. Nor, Wan Nur Arina and Alhasa, Kemal Maulana and Mohd. Esa, Mona Riza and Mohamad Sabri, Muhammad Haziq and Suparta, Wayan and Gulisano, Adriana Maria and Cooray, Vernon (2019) Cloud-to-Ground lightning observations over the Western Antarctic region. Polar Science, 20 . pp. 84-91. ISSN 1873-9652 |
op_doi |
https://doi.org/10.1016/j.polar.2019.05.002 |
container_title |
Polar Science |
container_volume |
20 |
container_start_page |
84 |
op_container_end_page |
91 |
_version_ |
1782336170061987840 |