نتایج جستجو برای: ماهوارۀ gpm ماهوارۀ trmm
تعداد نتایج: 2205 فیلتر نتایج به سال:
The Tropical Rainfall Measuring Mission (TRMM) is a Japan-US joint satellite mission which equips the world first spaceborne precipitation radar (PR) as well as microwave imager (TMI) and has been producing very valuable precipitation data more than twelve years. This long term precipitation record including vertical profile information from the TRMM PR made it possible to provide not only the ...
A complete understanding of the Earth’s hydrologic cycle necessarily dictates an ability to accurately quantify the global range of precipitation rates and types (rain, snow etc.). In turn, global observations of precipitation are most efficiently made from space. Great strides in the measurement of global tropical rainfall have occurred recently as a result of the NASA Tropical Rainfall Measur...
Obtaining accurate precipitation data in mountainous regions is important but challenging. In ungauged areas, remotely sensed products are useful supplements and alternatives to measured products. However, their ability detect solid light mountain areas still unclear. The primary objective of this study evaluate two satellite products, Global Precipitation Measurement (GPM) Tropical Measuring M...
Abstract Evaluation of the performance daily satellite-based rainfall (CMORPH, CHIRPS, GPM IMERG, and TRMM) was done to obtain applicable satellite estimates in groundwater basin Merapi Aquifer System (MAS). Performance data assessed by applying descriptive statistics, categorical bias decomposition on basis intensity classification. This classification is possible measure much detail. CM (CMOR...
The global precipitation measurement mission (GPM) has been in operation for seven years and continues to provide a vast quantity of data at finer temporospatial resolutions with improved accuracy coverage. GPM’s signature algorithm, the integrated multisatellite retrievals GPM (IMERG) is next-generation product expected wide variety research operational applications. This study evaluates lates...
With the end of Tropical Rainfall Measuring Mission (TRMM) era, its successor Global Precipitation Measurement (GPM) aims to provide a new generation satellite precipitation estimates (SPE) with higher spatiotemporal resolution and wider spatial coverage. As representative retrieval algorithms for GPM TRMM eras, it is necessary compare Integrated Multi-satellite Retrievals (IMERG) Analysis (TMP...
امروزه محاسبۀ دمای سطوح مختلف پوشش گیاهی و خاکی با استفاده از تصاویر ماهواره ای، با هدف برآورد تبخیر و تعرق واقعی با الگوریتم بیلان انرژی، اهمیت بسیار زیادی دارد. در این مطالعات دقت محاسبۀ گرادیان حرارتی بین سطح زمین و هوا و میزان اختلاف دمای سطوح مختلف کاربری دارای اهمیت است. در دشت شهرکرد به منظور محاسبۀ دمای سطح زمین[1] سه چالش اصلی وجود داشت. نخست، نبود مطالعۀ مشخصی در زمینۀ محاسبۀ دمای سطح...
Understanding the performance of remotely-sensed precipitation with rain gauge as reference is essential before their application in estimating multiple processes. In current study, Global Precipitation Measurements from Integrated Multi-satellite Retrievals (GPM-IMERG) and Tropical Rainfall Measuring Mission (TRMM-3B42) products were evaluated, taking data a for period 2004 to 2018 over Pakist...
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