File:Aerosol mod 2006.jpg
Aerosol_mod_2006.jpg (540 × 312 pixels, file size: 44 KB, MIME type: image/jpeg)
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DescriptionAerosol mod 2006.jpg |
English: Aerosols are tiny particles, such as soot or dust, suspended in Earth’s atmosphere. In addition to their air quality impacts, aerosols can interfere with sunlight reaching the planet’s surface, which means they play a role in the climate. Remote-sensing scientists often talk about aerosols in terms of their optical depth, which indicates how much of the incoming sunlight aerosols prevent from reaching the Earth’s surface. The global aerosol patterns in 2006 were similar to previous years. High aerosol concentrations were observed over western and central Africa (a mixture of dust from the Sahara and smoke from agricultural fires), northern India (where urban and industrial pollution concentrates against the foothills of the Himalaya Mountains), and northeastern China (urban and industrial pollution). Aerosol optical depth appeared unusually high in 2006 over Indonesia, probably as a result of increased fire activity there. The image also shows the impact of fires in Russia’s boreal forest, which spread aerosols into the Arctic.
العربية: الهباء الجوي هي جزيئات صغيرة جدا ، مثل السخام أو الغبار ، وعلقت في الغلاف الجوي للأرض. بالإضافة إلى الآثار على نوعية الهواء ، والهباء يمكن أن تتداخل مع أشعة الشمس الساقطة على سطح الكوكب ، وهو ما يعني أنها تلعب دورا في المناخ. علماء الاستشعار عن بعد في كثير من الأحيان الحديث عن الهباء الجوي من حيث العمق البصري ، مما يدل على مقدار الهباء أشعة الشمس الساقطة منع من الوصول الى سطح الأرض. الأنماط العالمية الهباء الجوي في عام 2006 كانت مشابهة للسنوات السابقة. تركيزات عالية الهباء شوهدت أكثر من غرب ووسط أفريقيا (خليط من الغبار قادمة من الصحراء والدخان المتصاعد من حرائق الزراعية) ، شمال الهند (حيث التلوث الحضري والصناعي ويركز على سفوح جبال هيمالايا) ، وشمال شرق الصين (الحضرية والصناعية التلوث). الهباء العمق البصري يبدو مرتفعة بشكل غير عادي في عام 2006 أكثر من اندونيسيا ، وربما كان ذلك نتيجة لزيادة النشاط النار هناك. الصورة كما يظهر أثر الحرائق في الغابات الشمالية في روسيا ، والتي انتشرت الهباء الجوي في القطب الشمالي |
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Source | http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=17575 |
Author | NASA/Earth Observatory/Reto Stockli |
Public domainPublic domainfalsefalse |
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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current | 02:02, 10 July 2007 | 540 × 312 (44 KB) | Pflatau (talk | contribs) | From http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=17575 Aerosols are tiny particles, such as soot or dust, suspended in Earth’s atmosphere. In addition to their air quality impacts, aerosols can interfere with sunlight reachi |
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