نتایج جستجو برای: 2045 period under the scenario a2
تعداد نتایج: 16199515 فیلتر نتایج به سال:
Rangelands are one of the most vulnerable parts concerning the climatechanges‟ impacts. These impacts are even stronger in the arid and semi-arid areas whererangeland ecosystems are in critical conditions. Therefore, it is crucial to figure out theactual dynamics of climate variations on the rangelands. The aim of this research was todetermine climate changes in Khabr rangeland, Kerman, Iran. S...
in agricultural meteorology, the growing season is the period within each year when crops can be grown from a view of thermal conditions. this period is in general, between the last and first frost dates in spring and autumn when temperature is above a specific threshold. there are two other definitions when using a 5 °c as threshold. one of the methods employed in studying future climate is us...
this research studies the potential impact of climate change on future trend and changes of two well known drought indicators namely rdi and spi in yazd meteorological station, in central part of iran. for this purpose, data of hadcm3 model that were resulted from gcm-runs based on the ipcc-sres scenarios of a2 and b2 were acquired and analyzed for projection of daily tmin, tmax and precipitati...
This research studies the potential impact of climate change on future trend and changes of two well known drought indicators namely RDI and SPI in Yazd meteorological station, in central part of Iran. For this purpose, data of HadCM3 model that were resulted from GCM-runs based on the IPCC-SRES scenarios of A2 and B2 were acquired and analyzed for projection of daily Tmin, Tmax and precipitati...
a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...
the current study aimed at investigating the relationship between motivation and test preparation strategies (tpss) used by iranian pre-university students in their preparation period for the university entrance exam (uee). due to the importance of uee in iran, this study also attempted to show its impact on these two important variables. to this end, 100 pre-university students in an iranian p...
Abstract This study examines the effects of climate change on runoff in the Yellow River basin in Khuzestan province. In this study, the combination of 14 general circulation models under two emission scenarios A2 and B1 were used for simulating the climatic variables in the next period (2025-2054) compared to the baseline period (1971-2000). The weighting method of mean observed temperature...
صنعتی شدن جوامع بشری موجب افزایش گازهای گلخانه ¬ای به خصوص گاز co2 شده است. این در حالی است که اگر این گازها کاهش نیابد متوسط دمای زمین می تواند به میزان 1/1 تا 4/6 درجه سانتی¬گراد تا سال 2100 افزایش یافته و باعث پدیده تغییر اقلیم شود. طبق گزارش¬های ipcc تغییر اقلیم می¬تواند باعث افزایش احتمال وقوع رخدادهای حدی اقلیمی مانند سیلاب در بعضی از مناطق کره زمین شود. بنابراین در تحقیق حاضر سعی بر این ...
rangelands are one of the most vulnerable parts concerning the climatechanges‟ impacts. these impacts are even stronger in the arid and semi-arid areas whererangeland ecosystems are in critical conditions. therefore, it is crucial to figure out theactual dynamics of climate variations on the rangelands. the aim of this research was todetermine climate changes in khabr rangeland, kerman, iran. s...
abstract the climate change was known to force local hydrology, through changes in the pattern of precipitation, temperature and the other hydrological variables. in this research, the impact of global warming on maximum and minimum temperature, precipitation and evapotranspiration (wheat, corn, tomato and sugar beet) of kashafrood basin under two climate change scenarios (a2 and b2), and the o...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید