High-intensity monsoon rainfall variability and its attributes: a case study for Upper Ganges Catchment in the Indian Himalaya during 1901-2013
High-intensity monsoon rainfall in the Indian Himalaya generates multiple environmental hazards. This study examines the variability in long-term trends (1901–2013) in the intensity and frequency of high-intensity monsoon rainfall events of varying depths (high, very high and extreme) in the Upper G...
Published in: | Natural Hazards |
---|---|
Main Authors: | , , , |
Format: | Text |
Language: | English |
Published: |
Institutional Knowledge at Singapore Management University
2021
|
Subjects: | |
Online Access: | https://ink.library.smu.edu.sg/soss_research/3522 https://doi.org/10.1007/s11069-020-04431-9 https://ink.library.smu.edu.sg/context/soss_research/article/4780/viewcontent/Bhardwaj_Chow_2021_av.pdf |
id |
ftsingaporemuniv:oai:ink.library.smu.edu.sg:soss_research-4780 |
---|---|
record_format |
openpolar |
spelling |
ftsingaporemuniv:oai:ink.library.smu.edu.sg:soss_research-4780 2023-11-12T04:12:39+01:00 High-intensity monsoon rainfall variability and its attributes: a case study for Upper Ganges Catchment in the Indian Himalaya during 1901-2013 BHARDWAJ, Alok WASSON, Robert J. CHOW, Winston T. L. ZIEGLER, Alan D. 2021-01-01T08:00:00Z application/pdf https://ink.library.smu.edu.sg/soss_research/3522 https://doi.org/10.1007/s11069-020-04431-9 https://ink.library.smu.edu.sg/context/soss_research/article/4780/viewcontent/Bhardwaj_Chow_2021_av.pdf eng eng Institutional Knowledge at Singapore Management University https://ink.library.smu.edu.sg/soss_research/3522 doi:10.1007/s11069-020-04431-9 https://ink.library.smu.edu.sg/context/soss_research/article/4780/viewcontent/Bhardwaj_Chow_2021_av.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School of Social Sciences Ganges Indian Himalaya Extreme rainfall Arctic Oscillation Asian Studies Physical and Environmental Geography text 2021 ftsingaporemuniv https://doi.org/10.1007/s11069-020-04431-9 2023-10-24T17:56:10Z High-intensity monsoon rainfall in the Indian Himalaya generates multiple environmental hazards. This study examines the variability in long-term trends (1901–2013) in the intensity and frequency of high-intensity monsoon rainfall events of varying depths (high, very high and extreme) in the Upper Ganges Catchment in the Indian Himalaya. Using trend analysis on the Indian Meteorological Department (IMD) rainfall dataset, we find statistically significant positive trends in all categories of monsoon rainfall intensity and frequency over the 113-year period. The majority of the trends for both intensity and frequency are spatially located in the Higher Himalayan region encompassing upstream sections of the Mandakini, Alaknanda and Bhagirathi River systems. The extreme rainfall trends for both intensity and frequency are found to be only located in the vicinity of the upstream section of the Mandakini Catchment. Further, we explored the relationship between the Arctic Oscillation (AO) climate system and the frequency of occurrence of high-intensity rainfall events. Results indicate that AO is more likely to influence the occurrence of extreme monsoon events when it has a higher magnitude of negative AO phase. This study will help in better understanding of the influence of climate change at higher latitudes on mid-latitude rainfall extremes, particularly in the Himalayas. The implications of the findings are that statistically significant increasing rainfall depths and frequency in the Higher Himalayan region support the notion of higher frequency of rainfall-induced hazards in the future. Text Arctic Climate change Institutional Knowledge (InK) at Singapore Management University Arctic Indian Natural Hazards 105 3 2907 2936 |
institution |
Open Polar |
collection |
Institutional Knowledge (InK) at Singapore Management University |
op_collection_id |
ftsingaporemuniv |
language |
English |
topic |
Ganges Indian Himalaya Extreme rainfall Arctic Oscillation Asian Studies Physical and Environmental Geography |
spellingShingle |
Ganges Indian Himalaya Extreme rainfall Arctic Oscillation Asian Studies Physical and Environmental Geography BHARDWAJ, Alok WASSON, Robert J. CHOW, Winston T. L. ZIEGLER, Alan D. High-intensity monsoon rainfall variability and its attributes: a case study for Upper Ganges Catchment in the Indian Himalaya during 1901-2013 |
topic_facet |
Ganges Indian Himalaya Extreme rainfall Arctic Oscillation Asian Studies Physical and Environmental Geography |
description |
High-intensity monsoon rainfall in the Indian Himalaya generates multiple environmental hazards. This study examines the variability in long-term trends (1901–2013) in the intensity and frequency of high-intensity monsoon rainfall events of varying depths (high, very high and extreme) in the Upper Ganges Catchment in the Indian Himalaya. Using trend analysis on the Indian Meteorological Department (IMD) rainfall dataset, we find statistically significant positive trends in all categories of monsoon rainfall intensity and frequency over the 113-year period. The majority of the trends for both intensity and frequency are spatially located in the Higher Himalayan region encompassing upstream sections of the Mandakini, Alaknanda and Bhagirathi River systems. The extreme rainfall trends for both intensity and frequency are found to be only located in the vicinity of the upstream section of the Mandakini Catchment. Further, we explored the relationship between the Arctic Oscillation (AO) climate system and the frequency of occurrence of high-intensity rainfall events. Results indicate that AO is more likely to influence the occurrence of extreme monsoon events when it has a higher magnitude of negative AO phase. This study will help in better understanding of the influence of climate change at higher latitudes on mid-latitude rainfall extremes, particularly in the Himalayas. The implications of the findings are that statistically significant increasing rainfall depths and frequency in the Higher Himalayan region support the notion of higher frequency of rainfall-induced hazards in the future. |
format |
Text |
author |
BHARDWAJ, Alok WASSON, Robert J. CHOW, Winston T. L. ZIEGLER, Alan D. |
author_facet |
BHARDWAJ, Alok WASSON, Robert J. CHOW, Winston T. L. ZIEGLER, Alan D. |
author_sort |
BHARDWAJ, Alok |
title |
High-intensity monsoon rainfall variability and its attributes: a case study for Upper Ganges Catchment in the Indian Himalaya during 1901-2013 |
title_short |
High-intensity monsoon rainfall variability and its attributes: a case study for Upper Ganges Catchment in the Indian Himalaya during 1901-2013 |
title_full |
High-intensity monsoon rainfall variability and its attributes: a case study for Upper Ganges Catchment in the Indian Himalaya during 1901-2013 |
title_fullStr |
High-intensity monsoon rainfall variability and its attributes: a case study for Upper Ganges Catchment in the Indian Himalaya during 1901-2013 |
title_full_unstemmed |
High-intensity monsoon rainfall variability and its attributes: a case study for Upper Ganges Catchment in the Indian Himalaya during 1901-2013 |
title_sort |
high-intensity monsoon rainfall variability and its attributes: a case study for upper ganges catchment in the indian himalaya during 1901-2013 |
publisher |
Institutional Knowledge at Singapore Management University |
publishDate |
2021 |
url |
https://ink.library.smu.edu.sg/soss_research/3522 https://doi.org/10.1007/s11069-020-04431-9 https://ink.library.smu.edu.sg/context/soss_research/article/4780/viewcontent/Bhardwaj_Chow_2021_av.pdf |
geographic |
Arctic Indian |
geographic_facet |
Arctic Indian |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Research Collection School of Social Sciences |
op_relation |
https://ink.library.smu.edu.sg/soss_research/3522 doi:10.1007/s11069-020-04431-9 https://ink.library.smu.edu.sg/context/soss_research/article/4780/viewcontent/Bhardwaj_Chow_2021_av.pdf |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1007/s11069-020-04431-9 |
container_title |
Natural Hazards |
container_volume |
105 |
container_issue |
3 |
container_start_page |
2907 |
op_container_end_page |
2936 |
_version_ |
1782331062240673792 |