Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5197 |
Major role of water bodies on diurnal precipitation regimes in Eastern Africa | |
Camberlin, Pierre1; Gitau, Wilson2; Planchon, Olivier3; Dubreuil, Vincent3; Funatsu, Beatriz M.3; Philippon, Nathalie4 | |
2018-02-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2018 |
卷号 | 38期号:2页码:613-629 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Kenya |
英文摘要 | Mean diurnal rainfall regimes over Eastern Africa (also referred to as the Greater Horn of Africa) are studied based on 3-hourly data from the TRMM 3B42 data set, averaged over a 17-year period (1998-2014). The consistency with long-term mean raingauge data, available for partly independent periods, varies from good (Sudan, Ethiopia, Eritrea and Somalia) to very good (Kenya, Tanzania and Uganda). Over sea (Indian Ocean and Red Sea), the diurnal rainfall distribution is quite uniform; however, a morning peak dominates and there is evidence of offshore phase propagation south of the equator. Over land, both rainfall frequency and rainfall amounts show a dominant afternoon maximum (1500-1800 East African Time, i.e. GMT + 3). However, many inland regions show a delayed rainfall maximum (evening, night-time or morning). The evening to night-time maximum found over some land areas is associated with a phase propagation from areas showing an afternoon peak. This occurs west of high ground areas (Sudan and parts of the Great Lakes region) and in belts parallel to the seashores (Eritrea, northeastern Ethiopia, Somalia and eastern Kenya). The latter provide indirect evidence that sea breeze effects can be detected at unexpectedly great distances from the coast (up to 300-400 km) in parts of Eastern Africa. A remarkable ring of early afternoon (1500) maxima is found around most lakes, although some east-west asymmetries occur. Over the lakes, a morning or late night maximum is mostly found. It is generally inversely related to the distance to the shorelines for the larger lakes, but over the mid-size lakes it is replaced by or competes with a late afternoon to evening maximum. |
英文关键词 | Horn of Africa East Africa Lake Victoria Indian Ocean rainfall diurnal cycle sea breeze lakes |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423816900008 |
WOS关键词 | RAINFALL VARIABILITY ; MARITIME CONTINENT ; WIND CIRCULATION ; DEEP CONVECTION ; SEA BREEZES ; NILE BASIN ; CYCLE ; SATELLITE ; TRMM ; CLIMATE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/37473 |
专题 | 气候变化 |
作者单位 | 1.Univ Bourgogne Franche Comte, CNRS, UMR 6282, Ctr Rech Climatol Biogeosci, 6 Bd Gabriel, F-21000 Dijon, France; 2.Univ Nairobi, Dept Meteorol, Nairobi, Kenya; 3.Univ Rennes 2, CNRS, UMR 6554, Dept Geog,LETG Rennes COSTEL, Rennes, France; 4.Univ Grenoble Alpes, CNRS, IRD, IGE, Grenoble, France |
推荐引用方式 GB/T 7714 | Camberlin, Pierre,Gitau, Wilson,Planchon, Olivier,et al. Major role of water bodies on diurnal precipitation regimes in Eastern Africa[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(2):613-629. |
APA | Camberlin, Pierre,Gitau, Wilson,Planchon, Olivier,Dubreuil, Vincent,Funatsu, Beatriz M.,&Philippon, Nathalie.(2018).Major role of water bodies on diurnal precipitation regimes in Eastern Africa.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(2),613-629. |
MLA | Camberlin, Pierre,et al."Major role of water bodies on diurnal precipitation regimes in Eastern Africa".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.2(2018):613-629. |
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