نوع مقاله : مقاله ترویجی
نویسندگان
1 دانشیار بخش تحقیقات حفاظت خاک و آبخیزداری، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان فارس، سازمان تحقیقات، آموزش و ترویج
2 کارشناس بخش تحقیقات حفاظت خاک و آبخیزداری، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان فارس، سازمان تحقیقات، آموزش و ترویج
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this research, at first, the methods of estimating precipitation by meteorological satellites have been interpreted, and then the satellite precipitation databases have been introduced and a comparison has been made between the accuracy of satellite output and precipitation measurement algorithms. The investigation of the present research showed that in the use of satellite rainfall data, time, geographical location and the amount of rainfall should be taken into consideration, and the accuracy and precision of the forecasted rainfall values can be increased from satellite data integration methods. The relationship between the rainfall intensity of each region and the rainfall recorded by the satellite is also important, and in addition to the logical relationship between the satellite rainfall values and the local station, the relationship between the rainfall intensity of each region and the rainfall recorded by the satellites can also be investigated. The output of satellite models at least on the daily time scale for precipitation data indicates moderate to poor accuracy; Therefore, in order to reduce the uncertainty of satellite precipitation products, it is necessary to use exponential microscale methods at the station level and reduce the error.
کلیدواژه‌ها [English]
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