Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central Taiwan
In recent years, Taiwan has been facing severe water shortages due to extreme drought. In addition, changes in rainfall patterns have resulted in an increasingly notable drought phenomenon, which affects the management and utilization of water resources. Therefore, this work examines basins in Centr...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-02-01
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| Series: | Frontiers in Water |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/frwa.2021.636792/full |
| _version_ | 1818382457399934976 |
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| author | Hsin-Fu Yeh |
| author_facet | Hsin-Fu Yeh |
| author_sort | Hsin-Fu Yeh |
| collection | DOAJ |
| description | In recent years, Taiwan has been facing severe water shortages due to extreme drought. In addition, changes in rainfall patterns have resulted in an increasingly notable drought phenomenon, which affects the management and utilization of water resources. Therefore, this work examines basins in Central Taiwan. Long-term records from 13 rainfall and 17 groundwater stations were selected. The Standardized Precipitation Index (SPI) and Standardized Groundwater Level Index (SGI) were used to analyze the drought characteristics of this region. The rainfall and groundwater level data from basins in Central Taiwan were analyzed in this study. The results show that the year 2015 experienced extreme drought conditions due to a correlation with SPI and SGI signals. In addition, with regard to groundwater drought, more drought events occurred in the Da'an River basin; however, the duration and intensity of these events were relatively low, in contrast to those of the Wu River basin. Finally, the correlation between SPI and SGI was observed to vary in different basins, but a certain degree of correlation was observed in all basins. The results show that drought intensity increases with longer drought durations. Moreover, severe droughts caused by rainfall tend to occur at a greater frequency than those caused by groundwater. |
| first_indexed | 2024-12-14T02:50:47Z |
| format | Article |
| id | doaj.art-7f1af571c8a84aba93d3c384a9b3ef8c |
| institution | Directory Open Access Journal |
| issn | 2624-9375 |
| language | English |
| last_indexed | 2024-12-14T02:50:47Z |
| publishDate | 2021-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Water |
| spelling | doaj.art-7f1af571c8a84aba93d3c384a9b3ef8c2022-12-21T23:19:46ZengFrontiers Media S.A.Frontiers in Water2624-93752021-02-01310.3389/frwa.2021.636792636792Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central TaiwanHsin-Fu YehIn recent years, Taiwan has been facing severe water shortages due to extreme drought. In addition, changes in rainfall patterns have resulted in an increasingly notable drought phenomenon, which affects the management and utilization of water resources. Therefore, this work examines basins in Central Taiwan. Long-term records from 13 rainfall and 17 groundwater stations were selected. The Standardized Precipitation Index (SPI) and Standardized Groundwater Level Index (SGI) were used to analyze the drought characteristics of this region. The rainfall and groundwater level data from basins in Central Taiwan were analyzed in this study. The results show that the year 2015 experienced extreme drought conditions due to a correlation with SPI and SGI signals. In addition, with regard to groundwater drought, more drought events occurred in the Da'an River basin; however, the duration and intensity of these events were relatively low, in contrast to those of the Wu River basin. Finally, the correlation between SPI and SGI was observed to vary in different basins, but a certain degree of correlation was observed in all basins. The results show that drought intensity increases with longer drought durations. Moreover, severe droughts caused by rainfall tend to occur at a greater frequency than those caused by groundwater.https://www.frontiersin.org/articles/10.3389/frwa.2021.636792/fullstandardized precipitation indexstandardized groundwater level indexdroughtCentral Taiwancross-correlation |
| spellingShingle | Hsin-Fu Yeh Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central Taiwan Frontiers in Water standardized precipitation index standardized groundwater level index drought Central Taiwan cross-correlation |
| title | Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central Taiwan |
| title_full | Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central Taiwan |
| title_fullStr | Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central Taiwan |
| title_full_unstemmed | Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central Taiwan |
| title_short | Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central Taiwan |
| title_sort | spatiotemporal variation of the meteorological and groundwater droughts in central taiwan |
| topic | standardized precipitation index standardized groundwater level index drought Central Taiwan cross-correlation |
| url | https://www.frontiersin.org/articles/10.3389/frwa.2021.636792/full |
| work_keys_str_mv | AT hsinfuyeh spatiotemporalvariationofthemeteorologicalandgroundwaterdroughtsincentraltaiwan |