نتایج جستجو برای: climate change in the future
تعداد نتایج: 21278332 فیلتر نتایج به سال:
Studying climate change and its effect on the intensity and frequency of drought can help the proper use of water resources and adaptation to the destructive effects of the drought phenomenon in the future decades. In recent decades, rising global temperatures have disturbed the planetchr('39')s climate balance and caused widespread climate change in most parts of the world. This research trie...
abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...
introduction climate change is a change in the statistical distribution of weather patterns when it lasts for an extended period of time. climate change may refer to a change in average weather conditions, or in the time variation of weather around long-term average conditions. climate change is caused by factors such as biotic processes, variations in solar radiation received by earth, plate t...
A Study of the Potential Impact of Climate Change on the Future Droughts in Iran by Using the Global Circulation Models as Outputs Gholamreza Roshan Assistant Professor in climatology, Department of Geography, Golestan University, Gorgan, Iran Mohammad Saeed Najafi MSc Student in Climatology, Faculty of Geography, Tehran University, Tehran, Iran. Extended Abstract 1- Introductio...
during recent years, a series of climate projections provided for surface temperature increase and precipitation changes over the next century in various time slices. national institutes are using downscaling projections for more precise results. in this research study, various climate change projections in global, continental, regional and local scales have been examined in special forest ecos...
Climate changes caused by global warming has presented challenges to human society. Studying the Changes of climate variables in the future decades by using output data’s of Atmosphere-Ocean Global Circulation Models (AOGCM) is a way of perusing climate fluctuation in a region. In this study, the focus is on the AOGCM proceeds in simulating of variable temperature in Ahwaz and Abadan stations. ...
The objective of this research was to investigate the effects of climate change on precipitation and temperature parameters of Karkheh Basin and inflow to Karkheh dam reservoir. This was conducted by applying 21 GCM models under CMIP5 scenarios. The error indices of R2, RMSE and MAE models with the observed precipitation and temperature data were examined to find the appropriate GCM model, MRI-...
Global temperatures have increased in the past 100 years by an average of 0.74°C (IPCC, 2013), with minimum temperatures increasing faster than maximum temperatures and winter temperatures increasing faster than summer temperatures (IPCC, 2013). Total annual rainfall tends to increase at the higher latitudes and near the equator, while rainfall in the sub-tropics is likely to decline and become...
introduction climate change generally affect all economic sectors, but the agricultural sector is the most sensitive and vulnerable sector, because crops are highly dependent on climatic resource. according to the scientific evidences, climate change in the future, especially the combined effects of rising temperatures and rising co2 concentrations in the atmosphere and increase the likelihood ...
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