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    A Spatiotemporal Analysis of Historical Droughts in Korea

    Source: Journal of Applied Meteorology and Climatology:;2011:;volume( 050 ):;issue: 009::page 1895
    Author:
    Kim, Do-Woo
    ,
    Byun, Hi-Ryong
    ,
    Choi, Ki-Seon
    ,
    Oh, Su-Bin
    DOI: 10.1175/2011JAMC2664.1
    Publisher: American Meteorological Society
    Abstract: he climatological characteristics of drought in South Korea were investigated using daily precipitation data for 1777?2008. The effective drought index was used to quantify the drought intensity. As a result, five characteristics were discovered. First, South Korea can be divided into four drought subregions (the central, southern, and east coastal regions and Jeju Island) using hierarchical cluster analysis. Second, a map for long-term drought conditions in the four subregions is created that allows identification of the spatiotemporal distribution of droughts for the 231 yr at a glance. Third, droughts in South Korea have time scales that depend on the onset season. Spring (March?May) droughts tend to be short (≤200 days) because the summer (June?September) rainy season follows. Summer droughts tend to be long (>200 days) because the dry season (October?February) follows. In the dry season, droughts tend to be sustained or become severe rather than being initiated or relieved. Fourth, 5-, 14-, 34-, and 115-yr drought cycles were identified by spectral analysis. The 5-yr cycle was dominant in all of the regions, the 14-yr cycle was observed over the southern and east coastal regions, and the 34-yr cycle was observed over the central region. Fifth, the most extreme drought occurred in 1897?1903 (return period: 233 yr) and was associated with the 115-yr drought cycle. After this drought, severe droughts (return period of >10 yr) occurred in 1927?30, 1938?40, 1942?45, 1951?52, 1967?69, and 1994?96; they were caused by the consecutive shortage of summer rainfall for two or more years.
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      A Spatiotemporal Analysis of Historical Droughts in Korea

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4213577
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    contributor authorKim, Do-Woo
    contributor authorByun, Hi-Ryong
    contributor authorChoi, Ki-Seon
    contributor authorOh, Su-Bin
    date accessioned2017-06-09T16:39:20Z
    date available2017-06-09T16:39:20Z
    date copyright2011/09/01
    date issued2011
    identifier issn1558-8424
    identifier otherams-71661.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4213577
    description abstracthe climatological characteristics of drought in South Korea were investigated using daily precipitation data for 1777?2008. The effective drought index was used to quantify the drought intensity. As a result, five characteristics were discovered. First, South Korea can be divided into four drought subregions (the central, southern, and east coastal regions and Jeju Island) using hierarchical cluster analysis. Second, a map for long-term drought conditions in the four subregions is created that allows identification of the spatiotemporal distribution of droughts for the 231 yr at a glance. Third, droughts in South Korea have time scales that depend on the onset season. Spring (March?May) droughts tend to be short (≤200 days) because the summer (June?September) rainy season follows. Summer droughts tend to be long (>200 days) because the dry season (October?February) follows. In the dry season, droughts tend to be sustained or become severe rather than being initiated or relieved. Fourth, 5-, 14-, 34-, and 115-yr drought cycles were identified by spectral analysis. The 5-yr cycle was dominant in all of the regions, the 14-yr cycle was observed over the southern and east coastal regions, and the 34-yr cycle was observed over the central region. Fifth, the most extreme drought occurred in 1897?1903 (return period: 233 yr) and was associated with the 115-yr drought cycle. After this drought, severe droughts (return period of >10 yr) occurred in 1927?30, 1938?40, 1942?45, 1951?52, 1967?69, and 1994?96; they were caused by the consecutive shortage of summer rainfall for two or more years.
    publisherAmerican Meteorological Society
    titleA Spatiotemporal Analysis of Historical Droughts in Korea
    typeJournal Paper
    journal volume50
    journal issue9
    journal titleJournal of Applied Meteorology and Climatology
    identifier doi10.1175/2011JAMC2664.1
    journal fristpage1895
    journal lastpage1912
    treeJournal of Applied Meteorology and Climatology:;2011:;volume( 050 ):;issue: 009
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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