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File:Caspian Sea from orbit.jpg

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العربية: منظرٌ من مدار الأرض لِبحر قزوين. التعليق الأصلي: كما أوردته وكالة الناسا: ::"القسم الشمالي من بحر قزوين يُعاني من ظاهرةٍ تُعرف باسم التخثث أو إغناء الماء، وهي تلك الحالة التي تتسببُ فيها الأسمدة الزراعيَّة المُنسابة من خِلال مياه الري والأمطار بِنُمو الطحالب في المياه. يُؤدي نُفوق وتحلُّل تلك الطحالب إلى حرمان المياه من الأكسجين، ممَّا يُؤدي بِدوره إلى الإضرار بِالحياة البريَّة بِطبيعة الحال. هذه الصُورة لِبحر قزوين تُظهرُ بعض الدوَّامات الخضراء والزرقاء على مقرُبةٍ من مصب نهر الڤولغا (أعلى الوسط)، ممَّا يدُل على وُجود كميَّةٍ من الطحالب. اللون الأزرق اللامع في القسم الشمالي الشرقي من البحر قد يكون تولَّد نتيجة اختلاط بعض النباتات بِالترسُبات، نظرًا لِأنَّ هذا الموقع هو أكثر المناطق ضُحولةً في البحر.
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 color 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.
Español: El Mar Caspio visto desde la órbita terrestre
فارسی: تصویر ماهواره‌ای از دریای خزر
‏
Тоҷикӣ: Тасвири Баҳр Каспӣ аз осмон
Date
Source

http://visibleearth.nasa.gov/view_rec.php?id=5514

Author Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC
Other versions Derivative works of this file:  Caspian Sea from orbit-NoRedLines.jpg

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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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Captions

Caspian Sea from orbit (here the image from MODIS of the Terra satellite on June 11, 2003)

Items portrayed in this file

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Caspian Sea

inception

11 June 2003

media type

image/jpeg

checksum

67680b9374004de157c7612c1187c3ad60f363ee

determination method or standard: SHA-1

data size

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5,600 pixel

width

4,400 pixel

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Date/TimeThumbnailDimensionsUserComment
current09:16, 14 June 2010Thumbnail for version as of 09:16, 14 June 20104,400 × 5,600 (3.44 MB)Originalwanahigher res
15:10, 8 February 2005Thumbnail for version as of 15:10, 8 February 2005550 × 700 (67 KB)PixeltooCaspian sea by space Nasa

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