globalchange  > 气候减缓与适应
DOI: 10.1029/2018JD028536
Scopus记录号: 2-s2.0-85051258604
论文题名:
Performance Analysis and Projected Changes of Agroclimatological Indices Across West Africa Based on High-Resolution Regional Climate Model Simulations
作者: Dieng D.; Laux P.; Smiatek G.; Heinzeller D.; Bliefernicht J.; Sarr A.; Gaye A.T.; Kunstmann H.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:15
起始页码: 7950
结束页码: 7973
语种: 英语
英文关键词: agricultural indices for cropping of maize ; and pearl millet ; high-resolution future climate projections ; sorghum ; West Africa
Scopus关键词: Pennisetum glaucum ; Zea mays
英文摘要: In this study, we analyze a set of agroclimatological indices across West Africa and assess their projected changes for the future. We apply the regional climate model CCLM (COnsortium for Small-scale MOdelling in CLimate Mode) with a high spatial resolution of 0.11° (approximately 12 km) under current (1981–2010) and future climate conditions, based on the emission scenario RCP4.5. The focus is on purely rainfall-based indices, that is, the onset (ORS), the cessation (CRS), and the length of the rainy season (LRS) and the joint rainfall- and temperature-based indices, that is, growing degree days (GDD) and the water availability (WAV), derived for maize, sorghum, and pearl millet across Guinea, Savanna, and Sahel. For the present, in general, the CCLM compares well to observations, represented by three different products. However, CCLM shows limitations in the representation of the CRS over Guinea with a delay of >30 days and the GDD and WAV over Sahel with biases up to 30% and 70% for all crops. For the future climate projections, ORS, CRS, and LRS are expected to be delayed up to 2 weeks for most regions, in particular for the period 2071–2100. The GDD is expected to increase by around 8% till 2021–2050 and by around 5% till 2071–2100 for all crops. The WAV is expected to be decreased by up to 10% in 2021–2050, and by up to 24% in 2071–2100 in Sahel, and <12% over Guinea and Savanna in both periods. In particular, we evaluate the added value of the high-resolution CCLM information for decision support in agricultural management. ©2018. American Geophysical Union. All Rights Reserved.
Citation statistics:
被引频次[WOS]:17   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113255
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Institute of Meteorology and Climate Research (IMK-IFU), Campus Alpine, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany; Institute of Geography, University of Augsburg, Augsburg, Germany; Laboratoire de Physique de l'Atmosphere et de l'Ocean Siméon Fongang (LPAO-SF), Ecole Supérieure Polytechnique, Université Cheikh Anta Diop, Dakar-Fann, Senegal; Cooperative Institute for Research in Environmental Sciences, NOAA/OAR/ESRL/Global Systems Division, University of Colorado Boulder, Boulder, CO, United States; Agence nationale de l'Aviation civile et de la Météorologie, Dakar, Senegal

Recommended Citation:
Dieng D.,Laux P.,Smiatek G.,et al. Performance Analysis and Projected Changes of Agroclimatological Indices Across West Africa Based on High-Resolution Regional Climate Model Simulations[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(15)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Dieng D.]'s Articles
[Laux P.]'s Articles
[Smiatek G.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Dieng D.]'s Articles
[Laux P.]'s Articles
[Smiatek G.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Dieng D.]‘s Articles
[Laux P.]‘s Articles
[Smiatek G.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.