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            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
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           | Description | 
           
             Español: El Mar Caspio visto desde la órbita terrestre 
            English: This is a view from orbit of the  Caspian Sea as imaged by the MODIS sensor on the Terra satellite. Caption: The original caption from  NASA: ::"The northern part of the Caspian Sea is plagued by a process called  eutrophication, in which agricultural run-off rich in  fertilizers stimulates rampant growth of  algae in the water. The death and decay of these algae robs the water of oxygen, with obvious negative consequences for aquatic life. This image of the Caspian Sea shows swirls of green and blue near the mouth of the  Volga River (top center), which indicate the presence of algae. The bright blue colour of the northeastern part of the sea may be due to a mixture of plant life and sediment, for this is where the sea is most shallow. This image is from the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite on  June 11,  2003. 
            فارسی: تصویر ماهوارهای از دریای خزر 
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           | Date | 
           11 June 2003 | 
          
          
           | Source | 
            http://visibleearth.nasa.gov/view_rec.php?id=5514
             - Transferred from English Wikipedia, original upload 2 November 2004 by  Kbh3rd
 
             
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           | Author | 
           Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC | 
          
         
         
        
         
          
           
            
             
              
               
                
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                   This is a featured picture on the Persian language Wikipedia ( نگارههای برگزیده) and is  considered one of the finest images. 
                   
                  If you think this file should be featured on Wikimedia Commons as well, feel free to  nominate it.  If you have an image of similar quality that can be published under a  suitable copyright license, be sure to  upload it,  tag it, and  nominate it. 
                   
                   
                  
                   
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         Licensing 
        
         
          
           | Public domainPublic domainfalsefalse | 
          
         
         
          
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           This file is in the  public domain 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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           Warnings:
             - Use of  NASA logos, insignia and emblems are restricted per US law  14 CFR 1221.
 
             - The NASA website hosts a large number of images from the  Soviet/ Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
 
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            Valued image
            This image has been assessed under the  valued image criteria and is considered the most valued image on Commons within the scope:  Satellite images of the Caspian Sea. You can see its nomination at  Commons:Valued image candidates/Caspian Sea from orbit.jpg. 
            
           
            
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       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
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