کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6346541 1621244 2015 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A spaceborne multisensor approach to monitor the desiccation of Lake Urmia in Iran
ترجمه فارسی عنوان
یک روش چندرسانه ای فضایی برای نظارت بر خشک شدن دریاچه ارومیه در ایران
کلمات کلیدی
ارتفاع سنجی ماهواره ای تصویربرداری ماهواره ای، رحمت، خشک شدن دریاچه،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات کامپیوتر در علوم زمین
چکیده انگلیسی
Our altimetry results indicate that, on average, the lake has lost 34 ± 1 cm of its water level every year from 2002 to 2014. The results from satellite imagery reveal a loss of water extent at an average rate of 220 ± 6 km2/yr, which indicates that the lake has lost about 70% of its surface area over the last 14 years. By combining water level from altimetry, surface water extent from satellite imagery and local bathymetry, we ascertain the changes in lake volume. Results indicate that the lake volume has been decreasing at an alarming rate of 1.03 ± 0.02 km3/yr. The water volume of the lake behaves differently from the water storage of the whole basin captured by GRACE. Our results show that the onset of a drought in 2007 over this region together with an increase in the rate of groundwater depletion caused a new equilibrium level for water storage of the whole basin. Comparing the results from GRACE and the obtained water volume in the lake with in situ groundwater level data reveals the anthropogenic influences on an accelerated lake desiccation. In fact, our monitoring approach raises critical issues regarding water use in the basin and highlights the important role of spaceborne sensors for any urgent or long-term treatment plan.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Remote Sensing of Environment - Volume 156, January 2015, Pages 349-360
نویسندگان
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