Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD031607 |
CORDEX Multi-RCM Hindcast Over Central Africa: Evaluation Within Observational Uncertainty | |
Taguela, Thierry N.1,2; Vondou, Derbetini A.1,2; Moufouma-Okia, Wilfran3; Fotso-Nguemo, Thierry C.1,4; Pokam, Wilfried M.1,2,5; Tanessong, Romeo S.1,6; Yepdo, Zphirin D.1,4; Haensler, Andreas7; Longandjo, Georges N.8; Bell, Jean P.9; Takong, Roland R.8; Tchotchou, Lucie A. Djiotang1 | |
2020-03-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Cameroon; Switzerland; Germany; South Africa |
英文摘要 | This paper investigates the performance of 10 Regional Climate Models (RCMs) hindcasts from the Coordinated Regional Climate Downscaling Experiments (CORDEX) over Central Africa, covering the period 1998-2008 and performed over a common model grid spacing 0.44 degrees ( similar to 50 km). Multiple observational data sets are used to evaluate model performances over four targeted subregions. Throughout the work, a measure of observational uncertainty is made and we discuss whether or not the models are found within or outside the range of observational uncertainty. Results indicate that RCMs generally capture rainfall and temperature basic features, though important biases exist and vary for models and seasons. Dry (wet) biases are common features over the Congo basin (northern and southern part of the domain). In terms of precipitation and temperature in both seasonal and annual scale, most RCMs along with their ensemble mean generally fall in the range of observational uncertainty. Furthermore, most RCMs show a good spread of grid points where the added value of RCMs is found although the added value in temperature is not as great as with precipitation. UC-WRF is among models adding less value on ERAINT and this could explain why whatever the time scale of variability, UC-WRF outputs are generally out from the observational uncertainty. The multimodel ensemble mean is generally found within observational range when most models are there as well. This highlights the fact that the ensemble mean, built from the equal treatment of RCMs, does not generally outperform individual RCMs realization as it is reported in several previous studies. |
英文关键词 | Central Africa CORDEX-RCMs Added Value Observational Uncertainty Multimodel Ensemble |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000519602000020 |
WOS关键词 | REGIONAL CLIMATE MODELS ; CONGO BASIN ; PRECIPITATION CLIMATOLOGY ; INTERANNUAL VARIABILITY ; EXTREME PRECIPITATION ; SPATIAL-DISTRIBUTION ; SUMMER MONSOON ; RAINFALL ; CMIP5 ; TEMPERATURE |
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/280112 |
专题 | 气候变化 |
作者单位 | 1.Univ Yaounde I, Dept Phys, Lab Environm Modelling & Atmospher Phys, Yaounde, Cameroon; 2.Inst Rech Dev, Lab Mixte Int Dynam Ecosyst Continentaux Afrique, Yaounde, Cameroon; 3.World Meteorol Org, Climate & Water Dept, Geneva, Switzerland; 4.Natl Instit Cartog, CCRL, Yaounde, Cameroon; 5.Univ Yaounde I, Higher Teacher Training Coll, Dept Phys, Yaounde, Cameroon; 6.Univ Dschang, Fac Agron & Agr Sci, Sch Wood Water & Nat Resources, Ebolowa, Cameroon; 7.Univ Freiburg, Fac Environm & Nat Resources, Inst Hydrol, Freiburg, Germany; 8.Univ Cape Town, Dept Oceanog, Cape Town, South Africa; 9.Univ Douala, Fac Sci, Dept Phys, Douala, Cameroon |
推荐引用方式 GB/T 7714 | Taguela, Thierry N.,Vondou, Derbetini A.,Moufouma-Okia, Wilfran,et al. CORDEX Multi-RCM Hindcast Over Central Africa: Evaluation Within Observational Uncertainty[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(5). |
APA | Taguela, Thierry N..,Vondou, Derbetini A..,Moufouma-Okia, Wilfran.,Fotso-Nguemo, Thierry C..,Pokam, Wilfried M..,...&Tchotchou, Lucie A. Djiotang.(2020).CORDEX Multi-RCM Hindcast Over Central Africa: Evaluation Within Observational Uncertainty.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(5). |
MLA | Taguela, Thierry N.,et al."CORDEX Multi-RCM Hindcast Over Central Africa: Evaluation Within Observational Uncertainty".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.5(2020). |
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