搜索结果: 1-9 共查到“理学 Sahel”相关记录9条 . 查询时间(0.198 秒)
Visualization of the rangeland resources from space: A case of Sahel Region, West Africa
Sahel remote sensing rangeland overgrazing environmental degradation
2014/11/26
This study uses Landsat data and Tasseled Cap Transformation green vegetation index (GVI)
technique to assess the condition of rangeland resources in the Sahel region of West Africa.
Three represe...
Intra-Seasonal Variability of Aerosols and Their Radiative Impacts on Sahel Climate during the Period 2000-2010 Using AERONET Data
AERONET Aerosol Optical Depth Radiative Forcing
2013/3/11
This paper presents a study using in situ measurements (AERONET data) to characterize the intra-seasonal variability of aerosols and their shortwave radiative impacts on Sahel (11N - 18N and 20W - 15E...
Variability of aerosol vertical distribution in the Sahel
aerosol vertical distribution the Sahel
2010/12/28
In this work, we have studied the seasonal and inter-annual variability of the aerosol vertical distribution over Sahelian Africa for the years 2006, 2007 and 2008, characterizing the different kind o...
Relationships between mineral dust and cloud properties in the West African Sahel
mineral dust cloud properties the West African Sahel
2010/8/16
Aerosol cloud interactions are known to be of great importance to many parts of the climate system. Five years of observations from three different satellites (Aqua, ENVISAT and Meteosat Second Genera...
Orbital- and millennial-scale changes in the hydrologic cycle and vegetation in the western African Sahel: insights from individual plant wax dD and d 13 C
e hydrologic cycle vegetation Orbital
2014/4/8
To reconstruct variability of the West African monsoon and associated vegetation changes on precessional and millennial time scales, we analyzed a marine sediment core from the continental slope off
...
Less rain,more water in ponds:a remote sensing study of the dynamics of surface waters from 1950 to present in pastoral Sahel (Gourma region,Mali)
remote sensing study dynamics surface waters pastoral Sahel
2010/3/5
Changes in the flooded area of ponds in the Gourma region from 1950 to present are studied by remote sensing, in the general context of the current multi-decennial Sahel drought. The seasonal and inte...
Less rain,more water in ponds:a remote sensing study of the dynamics of surface waters from 1950 to present in pastoral Sahel (Gourma region,Mali)
rain remote sensing study dynamics of surface waters pastoral Sahel
2010/2/20
Changes in the flooded area of ponds in the Gourma region from 1950 to present are studied by remote sensing, in the general context of the current multi-decennial Sahel drought. The seasonal and inte...
Deriving albedo maps for HAPEX-Sahel from ASAS data using kernel-driven BRDF models
spatial estimates albedo maps kernel-driven
2009/3/25
This paper describes the application and testing of a method for deriving spatial estimates of albedo from multi-angle remote sensing data.
Disentangling the effects of climate and people on Sahel vegetation dynamics
effects climate people Sahel vegetation dynamics
2010/1/19
The Sahel belt of Africa has been the focus of intensive scientific research since the 1960s, spurred on by the chronic vulnerability of its population to recurring drought and the threat of long-term...