Analysis of the Influencing Factors of Drought Events Based on GRACE Data under Different Climatic Conditions: A Case Study in Mainland China
The occurrence of droughts has become more frequent, and their intensity has increased in mainland China. With the aim of better understanding the influence of climate background on drought events in this region, we analyzed the role of the drought-related factors and extreme climate in the formatio...
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ftmdpi:oai:mdpi.com:/2073-4441/13/18/2575/ 2023-08-20T04:08:31+02:00 Analysis of the Influencing Factors of Drought Events Based on GRACE Data under Different Climatic Conditions: A Case Study in Mainland China Lilu Cui Cheng Zhang Chaolong Yao Zhicai Luo Xiaolong Wang Qiong Li agris 2021-09-18 application/pdf https://doi.org/10.3390/w13182575 EN eng Multidisciplinary Digital Publishing Institute New Sensors, New Technologies and Machine Learning in Water Sciences https://dx.doi.org/10.3390/w13182575 https://creativecommons.org/licenses/by/4.0/ Water; Volume 13; Issue 18; Pages: 2575 GRACE drought mainland China extreme climate climatic conditions Text 2021 ftmdpi https://doi.org/10.3390/w13182575 2023-08-01T02:44:02Z The occurrence of droughts has become more frequent, and their intensity has increased in mainland China. With the aim of better understanding the influence of climate background on drought events in this region, we analyzed the role of the drought-related factors and extreme climate in the formation of droughts by investigating the relationship between the drought severity index (denoted as GRACE-DSI) based on the terrestrial water storage changes (TWSCs) derived from Gravity Recovery and Climate Experiment (GRACE) time-variable gravity fields and drought-related factors/extreme climate. The results show that GRACE-DSI was consistent with the self-calibrating Palmer Drought Severity Index in mainland China, especially for the subtropical monsoon climate, with a correlation of 0.72. Precipitation (PPT) and evapotranspiration (ET) are the main factors causing drought events. However, they play different roles under different climate settings. The regions under temperate monsoon climate and subtropical monsoon climate were more impacted by PPT, while ET played a leading role in the regions under temperate continental climate and plateau mountain climate. Moreover, El Niño–Southern Oscillation (ENSO) and North Atlantic Oscillation (NAO) events mainly caused abnormalities in PPT and ET by affecting the strength of monsoons (East Asian and Indian monsoon) and regional highs (Subtropical High, Siberian High, Central Asian High, etc.). As a result, the various affected regions were prone to droughts during ENSO or NAO events, which disturbed the normal operation of atmospheric circulation in different ways. The results of this study are valuable in the efforts to understand the formation mechanism of drought events in mainland China. Text North Atlantic North Atlantic oscillation MDPI Open Access Publishing Indian Plateau Mountain ENVELOPE(-133.935,-133.935,63.104,63.104) Water 13 18 2575 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
GRACE drought mainland China extreme climate climatic conditions |
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GRACE drought mainland China extreme climate climatic conditions Lilu Cui Cheng Zhang Chaolong Yao Zhicai Luo Xiaolong Wang Qiong Li Analysis of the Influencing Factors of Drought Events Based on GRACE Data under Different Climatic Conditions: A Case Study in Mainland China |
topic_facet |
GRACE drought mainland China extreme climate climatic conditions |
description |
The occurrence of droughts has become more frequent, and their intensity has increased in mainland China. With the aim of better understanding the influence of climate background on drought events in this region, we analyzed the role of the drought-related factors and extreme climate in the formation of droughts by investigating the relationship between the drought severity index (denoted as GRACE-DSI) based on the terrestrial water storage changes (TWSCs) derived from Gravity Recovery and Climate Experiment (GRACE) time-variable gravity fields and drought-related factors/extreme climate. The results show that GRACE-DSI was consistent with the self-calibrating Palmer Drought Severity Index in mainland China, especially for the subtropical monsoon climate, with a correlation of 0.72. Precipitation (PPT) and evapotranspiration (ET) are the main factors causing drought events. However, they play different roles under different climate settings. The regions under temperate monsoon climate and subtropical monsoon climate were more impacted by PPT, while ET played a leading role in the regions under temperate continental climate and plateau mountain climate. Moreover, El Niño–Southern Oscillation (ENSO) and North Atlantic Oscillation (NAO) events mainly caused abnormalities in PPT and ET by affecting the strength of monsoons (East Asian and Indian monsoon) and regional highs (Subtropical High, Siberian High, Central Asian High, etc.). As a result, the various affected regions were prone to droughts during ENSO or NAO events, which disturbed the normal operation of atmospheric circulation in different ways. The results of this study are valuable in the efforts to understand the formation mechanism of drought events in mainland China. |
format |
Text |
author |
Lilu Cui Cheng Zhang Chaolong Yao Zhicai Luo Xiaolong Wang Qiong Li |
author_facet |
Lilu Cui Cheng Zhang Chaolong Yao Zhicai Luo Xiaolong Wang Qiong Li |
author_sort |
Lilu Cui |
title |
Analysis of the Influencing Factors of Drought Events Based on GRACE Data under Different Climatic Conditions: A Case Study in Mainland China |
title_short |
Analysis of the Influencing Factors of Drought Events Based on GRACE Data under Different Climatic Conditions: A Case Study in Mainland China |
title_full |
Analysis of the Influencing Factors of Drought Events Based on GRACE Data under Different Climatic Conditions: A Case Study in Mainland China |
title_fullStr |
Analysis of the Influencing Factors of Drought Events Based on GRACE Data under Different Climatic Conditions: A Case Study in Mainland China |
title_full_unstemmed |
Analysis of the Influencing Factors of Drought Events Based on GRACE Data under Different Climatic Conditions: A Case Study in Mainland China |
title_sort |
analysis of the influencing factors of drought events based on grace data under different climatic conditions: a case study in mainland china |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/w13182575 |
op_coverage |
agris |
long_lat |
ENVELOPE(-133.935,-133.935,63.104,63.104) |
geographic |
Indian Plateau Mountain |
geographic_facet |
Indian Plateau Mountain |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Water; Volume 13; Issue 18; Pages: 2575 |
op_relation |
New Sensors, New Technologies and Machine Learning in Water Sciences https://dx.doi.org/10.3390/w13182575 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/w13182575 |
container_title |
Water |
container_volume |
13 |
container_issue |
18 |
container_start_page |
2575 |
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1774720804922064896 |