Future Changes in Drought Characteristics under Extreme Climate Change over South Korea
This study attempts to analyze several drought features in South Korea from various perspectives using a three-month standard precipitation index. In particular, this study aims to evaluate changes in spatial distribution in terms of frequency and severity of droughts in the future due to climate ch...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2016/9164265 |
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| _version_ | 1832556030231314432 |
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| author | Joo-Heon Lee Hyun-Han Kwon Ho-Won Jang Tae-Woong Kim |
| author_facet | Joo-Heon Lee Hyun-Han Kwon Ho-Won Jang Tae-Woong Kim |
| author_sort | Joo-Heon Lee |
| collection | DOAJ |
| description | This study attempts to analyze several drought features in South Korea from various perspectives using a three-month standard precipitation index. In particular, this study aims to evaluate changes in spatial distribution in terms of frequency and severity of droughts in the future due to climate change, using IPCC (intergovernmental panel on climate change) GCM (general circulation model) simulations. First, the Mann-Kendall method was adopted to identify drought trends at the five major watersheds. The simulated temporal evolution of SPI (standardized precipitation index) during the winter showed significant drying trends in most parts of the watersheds, while the simulated SPI during the spring showed a somewhat different feature in the GCMs. Second, this study explored the low-frequency patterns associated with drought by comparing global wavelet power, with significance test. Future spectra decreased in the fractional variance attributed to a reduction in the interannual band from 2 to 8 years. Finally, the changes in the frequency and the severity under climate change were evaluated through the drought spell analyses. Overall features of drought conditions in the future showed a tendency to increase (about 6%) in frequency and severity of droughts during the dry season (i.e., from October to May) under climate change. |
| format | Article |
| id | doaj-art-f87ebd74f4334c08a6f7b1e76074de53 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-f87ebd74f4334c08a6f7b1e76074de532025-02-03T05:46:35ZengWileyAdvances in Meteorology1687-93091687-93172016-01-01201610.1155/2016/91642659164265Future Changes in Drought Characteristics under Extreme Climate Change over South KoreaJoo-Heon Lee0Hyun-Han Kwon1Ho-Won Jang2Tae-Woong Kim3Department of Civil Engineering, Joongbu University, Daeja-dong, Deogyang-gu, Goyang-si, Gyeonggi-do 10279, Republic of KoreaDepartment of Civil Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of KoreaDepartment of Civil Engineering, Joongbu University, Daeja-dong, Deogyang-gu, Goyang-si, Gyeonggi-do 10279, Republic of KoreaDepartment of Civil & Environmental Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan-si, Gyeonggi-do 15588, Republic of KoreaThis study attempts to analyze several drought features in South Korea from various perspectives using a three-month standard precipitation index. In particular, this study aims to evaluate changes in spatial distribution in terms of frequency and severity of droughts in the future due to climate change, using IPCC (intergovernmental panel on climate change) GCM (general circulation model) simulations. First, the Mann-Kendall method was adopted to identify drought trends at the five major watersheds. The simulated temporal evolution of SPI (standardized precipitation index) during the winter showed significant drying trends in most parts of the watersheds, while the simulated SPI during the spring showed a somewhat different feature in the GCMs. Second, this study explored the low-frequency patterns associated with drought by comparing global wavelet power, with significance test. Future spectra decreased in the fractional variance attributed to a reduction in the interannual band from 2 to 8 years. Finally, the changes in the frequency and the severity under climate change were evaluated through the drought spell analyses. Overall features of drought conditions in the future showed a tendency to increase (about 6%) in frequency and severity of droughts during the dry season (i.e., from October to May) under climate change.http://dx.doi.org/10.1155/2016/9164265 |
| spellingShingle | Joo-Heon Lee Hyun-Han Kwon Ho-Won Jang Tae-Woong Kim Future Changes in Drought Characteristics under Extreme Climate Change over South Korea Advances in Meteorology |
| title | Future Changes in Drought Characteristics under Extreme Climate Change over South Korea |
| title_full | Future Changes in Drought Characteristics under Extreme Climate Change over South Korea |
| title_fullStr | Future Changes in Drought Characteristics under Extreme Climate Change over South Korea |
| title_full_unstemmed | Future Changes in Drought Characteristics under Extreme Climate Change over South Korea |
| title_short | Future Changes in Drought Characteristics under Extreme Climate Change over South Korea |
| title_sort | future changes in drought characteristics under extreme climate change over south korea |
| url | http://dx.doi.org/10.1155/2016/9164265 |
| work_keys_str_mv | AT jooheonlee futurechangesindroughtcharacteristicsunderextremeclimatechangeoversouthkorea AT hyunhankwon futurechangesindroughtcharacteristicsunderextremeclimatechangeoversouthkorea AT howonjang futurechangesindroughtcharacteristicsunderextremeclimatechangeoversouthkorea AT taewoongkim futurechangesindroughtcharacteristicsunderextremeclimatechangeoversouthkorea |