کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6962502 1452270 2016 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterising groundwater use by vegetation using a surface energy balance model and satellite observations of land surface temperature
ترجمه فارسی عنوان
مشخص کردن استفاده از آبهای زیرزمینی توسط پوشش گیاهی با استفاده از یک مدل تعادل انرژی سطح و مشاهدات ماهواره ای از دمای سطح زمین
کلمات کلیدی
گیاه وابسته به آب زیرزمینی، دمای سطح زمین، مدل سازی تعادل انرژی سطحی، سنجش از راه دور ماهواره،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزار
چکیده انگلیسی
This study presents a novel 'model-data' approach to detect groundwater-dependent vegetation (GDV), through differences in modelled and observed land surface temperatures (LST) in space and time. Vegetation groundwater use is inferred where modelled LST exceeds observed LST by more than a threshold determined from consideration of systematic and random errors in model and observations. Modelled LST was derived from a surface energy balance model and LST observations were obtained from Terra-MODIS thermal imagery. The model-data approach, applied in the Condamine River Catchment, Queensland, Australia, identified GDV coincident to existing mapping. GDV were found to use groundwater up to 48% of the time and for as many as 56 consecutive days. Under driest of conditions, groundwater was estimated to contribute up to 0.2 mm h−1 to total ET for GDV. The ability to both detect the location and water-use dynamics of GDV is a significant advancement on previous remote-sensing GDV methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Modelling & Software - Volume 80, June 2016, Pages 66-82
نویسندگان
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