DOI: 10.1175/JCLI-D-12-00824.1
Scopus记录号: 2-s2.0-84886266169
论文题名: Tropical cyclones and drought amelioration in the gulf and southeastern coastal United States
作者: Maxwell J.T. ; Ortegren J.T. ; Knapp P.A. ; Soulé P.T.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 21 起始页码: 8440
结束页码: 8452
语种: 英语
Scopus关键词: Climate variability
; Hurricanes/typhoons
; Hydrometeorology
; Inter-decadal variability
; North Atlantic oscillations
; Atmospheric pressure
; Hurricanes
; Oceanography
; Drought
; climate variation
; coastal zone
; decadal variation
; drought
; hydrometeorology
; North Atlantic Oscillation
; precipitation (climatology)
; tropical cyclone
; Gulf Coast [United States]
; North Carolina
; Texas
; United States
英文摘要: Precipitation from land-falling tropical cyclones (TCs) has a significant hydroclimatic influence in the southeastern United States, particularly during drought years. The frequency with which TCs ended drought conditions was examined for southeastern coastal states from Texas to North Carolina during 1895-2011. The region was divided into the Gulf Coast states (GCS) and the southeastern Atlantic coast states (ACS). The spatiotemporal patterns of tropical cyclone drought busters (TCDBs) were analyzed. Larger-scale ocean- atmosphere influences on TCDBs were examined using chi-squared analysis. The ACS experienced TCDBs more frequently and farther inland compared to the GCS. The number of TCDBs has significantly increased with time in the ACS. TCDBs numbers in the GCS did not exhibit significant increases, but the area alleviated of drought conditions increased significantly in the last 117 years. The dominant larger-scale ocean-atmosphere forcing of TCDBswas a combination of awarmAtlantic Ocean [positiveAtlanticmultidecadal oscillation index (AMO+)] and weak westerlies [negative North Atlantic Oscillation index (NAO-)]. AMO+ leads to an increase in the number of TCs throughout the North Atlantic basin, and NAO- increases the likelihood of TC landfall by controlling the steering of TCs toward the southeastern United States. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51575
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Geography, Indiana University, Bloomington, IN, United States; Department of Environmental Studies, University of West Florida, Pensacola, FL, United States; Department of Geography, University of North Carolina at Greensboro, Greensboro, NC, United States; Department of Geography and Planning, Appalachian State University, Boone, NC, United States
Recommended Citation:
Maxwell J.T.,Ortegren J.T.,Knapp P.A.,et al. Tropical cyclones and drought amelioration in the gulf and southeastern coastal United States[J]. Journal of Climate,2013-01-01,26(21)