File:Sahel rainfall timeseries.gif

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Sahel_rainfall_timeseries.gif(600 × 219 pixels, file size: 8 KB, MIME type: image/gif)


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Summary[edit]

Description
English: More than a century of rainfall data in the the Sahel sub-Saharan savanna show:
  • an unusually wet period from 1950 until 1970 (positive index values),
  • followed by extremely dry years from 1970 to 1990 (negative index values).
  • From 1990 until 2004 rainfall returned to levels slightly below the 1898–1993 average, but year-to-year variability was high.
Date
Source NASA Earth Observatory, Data
Author Todd Mitchell
Permission
(Reusing this file)

Public Domain, NASA

Licensing[edit]

Public domain
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Date/TimeThumbnailDimensionsUserComment
current11:04, 19 June 2008Thumbnail for version as of 11:04, 19 June 2008600 × 219 (8 KB)Bender235{{Information |Description={{en|1=More than a century of rainfall data in the Sahel show an unusually wet period from 1950 until 1970 (positive index values), followed by extremely dry years from 1970 to 1990 (negative index values). From 1990 until 2004

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