Haeun Jung, Jeongeun Won, Shinuk Kang, Sangdan Kim
{"title":"Spatiotemporal variability of vegetation response to meteorological drought on the Korean Peninsula","authors":"Haeun Jung, Jeongeun Won, Shinuk Kang, Sangdan Kim","doi":"10.2166/nh.2023.237","DOIUrl":null,"url":null,"abstract":"<div><div data- reveal-group-><div><img alt=\"graphic\" data-src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.237/1/m_hydrology-d-23-00137gf01.png?Expires=1706779572&Signature=eVcslLvs0982AcjCrJebE2KfIjcCwTO83F-XhyMa1VpSqc0PSFJYYAyk1JvbPBXNZXLnyqldAZYDCzlQAcWyq~gCVK88EpJA~wm5fr-PD9QyizdLIZsd-sA2Fjn2zOqrofySNx~8OUe~dEKT4CJ7SHqs~Fx03jReiXIurWEgUvbuUn3all8NrAO1yUVDvFzuU2rm3rlQh7N7DYVzoqZgNxQSm2JInR3U0H~CKDMScEcyHoSRLOUHoJ1OyVW3Oh-A2g6QA0fac-gczATXuT9oObfsxJOGGKdTJFVbTYYllKoaanTWdstmOldwhpWRN-rlAZL0-ZglxPjn2LY4swAgWw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\" path-from-xml=\"hydrology-d-23-00137gf01.tif\" src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.237/1/m_hydrology-d-23-00137gf01.png?Expires=1706779572&Signature=eVcslLvs0982AcjCrJebE2KfIjcCwTO83F-XhyMa1VpSqc0PSFJYYAyk1JvbPBXNZXLnyqldAZYDCzlQAcWyq~gCVK88EpJA~wm5fr-PD9QyizdLIZsd-sA2Fjn2zOqrofySNx~8OUe~dEKT4CJ7SHqs~Fx03jReiXIurWEgUvbuUn3all8NrAO1yUVDvFzuU2rm3rlQh7N7DYVzoqZgNxQSm2JInR3U0H~CKDMScEcyHoSRLOUHoJ1OyVW3Oh-A2g6QA0fac-gczATXuT9oObfsxJOGGKdTJFVbTYYllKoaanTWdstmOldwhpWRN-rlAZL0-ZglxPjn2LY4swAgWw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\"/><div>View largeDownload slide</div></div></div><div content- data-reveal=\"data-reveal\"><div><img alt=\"graphic\" data-src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.237/1/m_hydrology-d-23-00137gf01.png?Expires=1706779572&Signature=eVcslLvs0982AcjCrJebE2KfIjcCwTO83F-XhyMa1VpSqc0PSFJYYAyk1JvbPBXNZXLnyqldAZYDCzlQAcWyq~gCVK88EpJA~wm5fr-PD9QyizdLIZsd-sA2Fjn2zOqrofySNx~8OUe~dEKT4CJ7SHqs~Fx03jReiXIurWEgUvbuUn3all8NrAO1yUVDvFzuU2rm3rlQh7N7DYVzoqZgNxQSm2JInR3U0H~CKDMScEcyHoSRLOUHoJ1OyVW3Oh-A2g6QA0fac-gczATXuT9oObfsxJOGGKdTJFVbTYYllKoaanTWdstmOldwhpWRN-rlAZL0-ZglxPjn2LY4swAgWw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\" path-from-xml=\"hydrology-d-23-00137gf01.tif\" src=\"https://iwa.silverchair-cdn.com/iwa/content_public/journal/hr/54/12/10.2166_nh.2023.237/1/m_hydrology-d-23-00137gf01.png?Expires=1706779572&Signature=eVcslLvs0982AcjCrJebE2KfIjcCwTO83F-XhyMa1VpSqc0PSFJYYAyk1JvbPBXNZXLnyqldAZYDCzlQAcWyq~gCVK88EpJA~wm5fr-PD9QyizdLIZsd-sA2Fjn2zOqrofySNx~8OUe~dEKT4CJ7SHqs~Fx03jReiXIurWEgUvbuUn3all8NrAO1yUVDvFzuU2rm3rlQh7N7DYVzoqZgNxQSm2JInR3U0H~CKDMScEcyHoSRLOUHoJ1OyVW3Oh-A2g6QA0fac-gczATXuT9oObfsxJOGGKdTJFVbTYYllKoaanTWdstmOldwhpWRN-rlAZL0-ZglxPjn2LY4swAgWw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA\"/><div>View largeDownload slide</div></div><i> </i><span>Close modal</span></div></div><p>To assess vegetation drought, it is important to understand the relationship between climate and vegetation and to accurately measure the response of vegetation activity to meteorological drought. In this study, we used the vegetation health index (VHI) to investigate the propagation time and time-lag of vegetation response to different meteorological drought indices, including the standardized precipitation index (SPI), evaporative demand drought index (EDDI), standardized precipitation–evapotranspiration index (SPEI), and copula-based joint drought index (CJDI). Using correlation analyses of meteorological drought indices with different time-scales and time-lags and VHIs with different weights, we determined which meteorological drought indices and their corresponding time-scales and time-lags best represent the effects of meteorological drought on vegetation activity on the Korean Peninsula. We also evaluated the relative roles of normalized difference vegetation index (NDVI) and land surface temperature (LST) in quantifying vegetation response to meteorological drought. The meteorological drought index for monitoring vegetation response to meteorological drought on the Korean Peninsula was best applied using EDDI in January–May and SPEI in June–December. Vegetation health was dominated by LST in January–September, with a higher impact of NDVI in November–December. We expect these results to provide useful information for vegetation drought monitoring.</p>","PeriodicalId":13096,"journal":{"name":"Hydrology Research","volume":"27 1","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Hydrology Research","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.2166/nh.2023.237","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"WATER RESOURCES","Score":null,"Total":0}
引用次数: 0
Abstract
View largeDownload slide
View largeDownload slide
Close modal
To assess vegetation drought, it is important to understand the relationship between climate and vegetation and to accurately measure the response of vegetation activity to meteorological drought. In this study, we used the vegetation health index (VHI) to investigate the propagation time and time-lag of vegetation response to different meteorological drought indices, including the standardized precipitation index (SPI), evaporative demand drought index (EDDI), standardized precipitation–evapotranspiration index (SPEI), and copula-based joint drought index (CJDI). Using correlation analyses of meteorological drought indices with different time-scales and time-lags and VHIs with different weights, we determined which meteorological drought indices and their corresponding time-scales and time-lags best represent the effects of meteorological drought on vegetation activity on the Korean Peninsula. We also evaluated the relative roles of normalized difference vegetation index (NDVI) and land surface temperature (LST) in quantifying vegetation response to meteorological drought. The meteorological drought index for monitoring vegetation response to meteorological drought on the Korean Peninsula was best applied using EDDI in January–May and SPEI in June–December. Vegetation health was dominated by LST in January–September, with a higher impact of NDVI in November–December. We expect these results to provide useful information for vegetation drought monitoring.
期刊介绍：
Hydrology Research provides international coverage on all aspects of hydrology in its widest sense, and welcomes the submission of papers from across the subject. While emphasis is placed on studies of the hydrological cycle, the Journal also covers the physics and chemistry of water. Hydrology Research is intended to be a link between basic hydrological research and the practical application of scientific results within the broad field of water management.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
