Spatial patterns of seasonal scale trends in extreme hourly precipitation in South Africa

被引：42
作者：
Sen Roy, Shouraseni [1 ]
Rouault, Mathieu [2 ,3 ]
机构：
[1] Univ Miami, Dept Geog & Reg Studies, Coral Gables, FL 33124 USA
[2] Univ Cape Town, Mare Inst, Dept Oceanog, ZA-7700 Rondebosch, South Africa
[3] Univ Cape Town, Nansen Tutu Ctr Marine Environm Res, ZA-7700 Rondebosch, South Africa
来源：
APPLIED GEOGRAPHY | 2013年 / 39卷
关键词：
Precipitation; South Africa; Extreme; Diurnal; INTENSE PRECIPITATION; HEAVY PRECIPITATION; CLIMATE EXTREMES; EVENTS; RAINFALL; MODEL; TEMPERATURE; INDEXES;
D O I：
10.1016/j.apgeog.2012.11.022
中图分类号：
P9 [自然地理学]; K9 [地理];
学科分类号：
0705 ; 070501 ;
摘要：
Hourly precipitation data from 1998 to 2007 spread across 102 stations in South Africa were analyzed for trends in extreme hourly precipitation events. The analyses were conducted at the seasonal scale for summer and winter for nine different variables. The results of our analysis showed predominantly positive trends during summer, with the strongest trends concentrated in the coastal areas in the southeast. The spatial variations in the trends were reversed during the winter season, with negative trends observed in the coastal areas and positive trends occurring in the interior. The summer patterns also overlap with areas experiencing overall increasing trends in annual extreme precipitation as well as a stronger diurnal cycle identified in recently published literature. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：151 / 157
页数：7
相关论文
共 52 条
[1]   Global observed changes in daily climate extremes of temperature and precipitation [J].
Alexander, LV ;
Zhang, X ;
Peterson, TC ;
Caesar, J ;
Gleason, B ;
Tank, AMGK ;
Haylock, M ;
Collins, D ;
Trewin, B ;
Rahimzadeh, F ;
Tagipour, A ;
Kumar, KR ;
Revadekar, J ;
Griffiths, G ;
Vincent, L ;
Stephenson, DB ;
Burn, J ;
Aguilar, E ;
Brunet, M ;
Taylor, M ;
New, M ;
Zhai, P ;
Rusticucci, M ;
Vazquez-Aguirre, JL .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2006, 111 (D5)
[2]  
Allen SK, 2012, MANAGING THE RISKS OF EXTREME EVENTS AND DISASTERS TO ADVANCE CLIMATE CHANGE ADAPTATION, P3
[3]  
[Anonymous], TENKI
[4]  
Brunetti M, 2000, INT J CLIMATOL, V20, P1017, DOI 10.1002/1097-0088(200007)20:9<1017::AID-JOC515>3.0.CO
[5]  
2-S
[6]  
Christensen JH, 2007, AR4 CLIMATE CHANGE 2007: THE PHYSICAL SCIENCE BASIS, P847
[7]   Recent climatology, variability, and trends in global surface humidity [J].
Dai, Aiguo .
JOURNAL OF CLIMATE, 2006, 19 (15) :3589-3606
[8]  
Dyson LL, 2002, WATER SA, V28, P249
[9]   Climate extremes: Observations, modeling, and impacts [J].
Easterling, DR ;
Meehl, GA ;
Parmesan, C ;
Changnon, SA ;
Karl, TR ;
Mearns, LO .
SCIENCE, 2000, 289 (5487) :2068-2074
[10]   High-resolution model-projected changes in mid-tropospheric closed-lows and extreme rainfall events over southern Africa [J].
Engelbrecht, C. J. ;
Engelbrecht, F. A. ;
Dyson, L. L. .
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2013, 33 (01) :173-187
123456