نتایج جستجو برای: wg model lars

تعداد نتایج: 2108633  

ژورنال: آبخیزداری ایران 2019

Climate change is an unprecedented change are taking place. Changes of meteorological parameters such as precipitation, maximum and minimum temperatures. Since weather forecasting is important for these parameters, in this study, the performance of Statistical Downscaling Model (SDSM and Lars-WG) were used to predict temperature and precipitation and mean of these changes for the periods 2046-2...

Journal: :desert 2014
elahe goodarzi alireza massah bavani mohammadtaghi dastorani ali talebi

this study aims to evaluate effects of two downscaling methods; change-factor and statistical downscaling on therunoff of the azam-harat river located at yazd province (with an arid climate) of iran, under the a2 emission scenariofor the period of 2010-2039. for this purpose, cgcm3-ar4 model; a rainfall-runoff conceptual model, ihacres; twodownscaling models, change factor and lars-wg were appl...

Various methods developed to convert large-scale data to regional climatic data. In few studies , the results of these methods have been statistically compared. The main purpose of this study was to compare SDSM and LARS-WG models for Downscaling output data of CANE-SM2 and HADGEM2-ES general circulation models under RCP2.6, RCP4.5 and RCP8.5 scenarios. For this study, precipitation, minimum an...

Journal: :پژوهش های جغرافیای طبیعی 0
سمیرا اخوان استادیار گروه علوم و مهندسی آب، دانشکدة کشاورزی، دانشگاه بوعلی سینا نسرین دلاور دانشجوی کارشناسی ارشد آبیاری و زهکشی، گروه علوم و مهندسی آب، دانشکدة کشاورزی، دانشگاه بوعلی سینا

daily weather information is currently available for about 40000 stations across the world. but, distribution of these stations is relatively uneven in some parts of the world. moreover, there are often large amounts of missing values (schuol and abbaspour, 2007:301). using generated data can help to fill missing or even to correct erroneously measured data (fodor et al., 2010: 91). lars-wg is ...

Journal: :پژوهش های جغرافیای طبیعی 0
سمیرا اخوان استادیار گروه علوم و مهندسی آب، دانشکدة کشاورزی، دانشگاه بوعلی سینا نسرین دلاور دانشجوی کارشناسی ارشد آبیاری و زهکشی، گروه علوم و مهندسی آب، دانشکدة کشاورزی، دانشگاه بوعلی سینا

introduction daily weather information is currently available for about 40000 stations across the world. but, distribution of these stations is relatively uneven in some parts of the world. moreover, there are often large amounts of missing values (schuol andabbaspour, 2007: 301). using generated data can help fill missing or even to correct erroneously measured data (fodor et al., 2010: 91). l...

Journal: :آب و خاک 0
فاطمه عباسی شراره ملبوسی ایمان بابائیان مرتضی اثمری رضا برهانی

abstract in this research, four meteorological set of data including maximum temperature, minimum temperature, precipitation and radiation from echo-g, under a1scenario have been used for climate change detection over south khorasan. echo-g is a general circulation model that currently is used in hamburg university and korea meteorological research institute. in this research climate change ass...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ملایر - دانشکده منابع طبیعی 1393

در این پژوهش برای بررسی و آشکار سازی تغییر اقلیم در شهر خرم آباد با استفاده از تیپ های همدید هوا از چهار پارامتر بارش، دمای حداقل، دمای حداکثر و ساعت آفتابی استفاده شده است. بر این اساس، پس از ارزیابی مدل lars-wg، داده های روزانه خروجی مدل hadcm3 تحت سناریوی a1b، a2 و b1 برای سه دوره ی 2030-2011، 2065-2046 و 2099-2080 توسط مدل lars-wg ریز مقیاس و پیش بینی شدند. سپس تیپ های همدید منطقه برای سه د...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
maedeh razavi zade karim solaimani esmaeil sailakhori

climate is a complex system which is changing mainly due to the increase of greenhouse gases. because of the importance of climate change and the effects it can have on water resources, in recent years, this topic has been taken into consideration for different basins on earth. the objective of this study is to investigate the effects of climate change and forecasting meteorological variables o...

Journal: Desert 2014

This study aims to evaluate effects of two downscaling methods; change-factor and statistical downscaling on therunoff of the Azam-Harat River located at Yazd province (with an arid climate) of Iran, under the A2 emission scenariofor the period of 2010-2039. For this purpose, CGCM3-AR4 model; a rainfall-runoff conceptual model, IHACRES; twodownscaling models, Change Factor and LARS-WG were appl...

   In the present research, the climate change effect on variation of surface runoff of Zarrinehrud located in the Miandoab plain was investigated. In this direction, the scenarios including A1B, A2 and B1 via LARS-WG downscaling model and with applying the HadCM3 general circulation model and artificial neural network model in two different periods (2046-2065, 2080 -2099) were studied. For thi...

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