نتایج جستجو برای: statistical downscaling model sdsm
تعداد نتایج: 2375313 فیلتر نتایج به سال:
In the vast majority parts of the Earth, a prospect now visible is the mostly synthetic thinking and fabrication by the human hand. Collision and impact of humans on the natural environment in the short and long-term courses for obvious geographical features have changed a variety of spaces. One of the consequences of human impact on the natural environment during the current period is the phen...
Perubahan iklim dapat mempengaruhi karakteristik hujan suatu wilayah dan berpengaruh terhadap pengelolaan sumber daya air. Pengelolaan air yang mempertimbangkan faktor perubahan membutuhkan data hasil proyeksi model iklim. Hujan rerata pada DAS bisa diperoleh dengan dua pendekatan. Pertama, melakukan downscaling untuk setiap stasiun hujan, kemudian menghitung (Thiessen A). Kedua, wilayah, lalu ...
The statistical downscaling tool of a model (SDSM) to generate the future climate piedmont plain area in Hebei Province for 30-year period. Xinji city was selected as typical example this area. crop growth decision support system agrotechnology transfer (DSSAT) adopted estimate changing trends water footprint winter wheat production under conditions, and obtain optimal irrigation scheme an ‘acc...
یکی از روشهای پیش بینی تغییرات اقلیمی استفاده از داده های بدست آمده از خروجی مدلهای جهانی اقلیم gcm(global climate model) است. قدرت تفکیک مدلهای جهانی اقلیم به حدود 000/ 40 کیلومتر مربع می رسد. فاصله زیاد گره های شبکه از یکدیگر استفاده از خروجی این مدلها را محدود می سازد. این تحقیق با استفاده از داده های ncep و gcm انجام و از روش ریز مقیاس نمایی آماری statistical downscaling برای مدلسازی چهار پ...
Abstract In this study, the artificial neural network (ANN) method was applied to investigate impacts of climate change on water quantity and quality Qu'Appelle River in Saskatchewan, Canada. First, second-generation Canadian earth system model (CanESM2) adopted predict future conditions. The Statistical DownScaling Model (SDSM) then downscale generated data. To analyze river, concentrations di...
climate change has various effects on the quantity of rainfall and warming also is lead to increases in frequency and intensity of droughts by accelerating earth drying up and consequently. it is effective on the curves of severity- duration- frequency of drought (sdf). the purpose of this study is to evaluate the effects of climate change on sdf curves in the future in qareh su basin located i...
Abstract Water security has been a major challenge in the semi-arid area of West Africa including Northern Ghana, where climate change is projected to increase if appropriate measures are not taken. This study assessed rainfall and temperature projections its impact on water resources Vea catchment using an ensemble mean four bias-corrected Regional Climate Models Statistical Downscaling Model-...
With regard to the confirmation of climate change in most regions of the world and its effects on different parts of the water cycle, knowledge of the status of water resources is necessary for proper management of resources and planning for the future. Hence many studies have been done in different areas with the aim of analyzing the impact of climate change on hydrological processes in the up...
Abstract The flood regimes have been changing due to the climate change and human activities. Evaluating risk under nonstationarity is critical water resource management authorities in disaster reduction. In this study, annual maximum streamflow (AMS) was used analyze frequency Hanjiang River (HJR) Basin. A Generalized Additive Model for Location, Scale Shape (GAMLSS) employed characterize AMS ...
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