نتایج جستجو برای: climate model
تعداد نتایج: 2237997 فیلتر نتایج به سال:
over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...
The Last Glacial Maximum (LGM), 21 thousand years before present, was the time of maximum land ice extent during the last ice age. A recent simulation of LGM climate by a state-ofthe-art fully coupled global climate model is shown to exhibit strong, steady atmospheric jets and weak transient eddy activity in the Atlantic sector compared to today’s climate. In contrast, previous work based on un...
Climate models have become an important tool in the study of climate and climate change, and ensemble experiments consisting of multiple climate model runs are used in studying and quantifying the uncertainty in climate model output. However, there are often only a limited number of model runs available for a particular experiment, and the statistical challenge is to characterize the distributi...
introduction: ethical climate is a part of organizational culture. organizational values deal with ethical issues and determine what is considered ethically correct. the ethical climate of an organization can predict unethical and ethical behaviors. this study aimed to investigate and model the structural equations between the intention to quit and ethical climate, job satisfaction, and organiz...
Climatic variables are among the factors influencing the performance of various crop and livestock products. Considering the advanced climate change, the impact of climate indicators on livestock production can present an important challenge for producers. The prediction of crop yields is one of the most important issues in the food security debate to increase the economic efficiency of livesto...
Although turtles are the most threatened taxonomic group within the reptile class, we have a very limited understanding of how turtles respond to climate change. Here, we evaluated the effects of climate changes on the geographical distribution of Caspian pond turtle (Mauremys caspica). We used an ensemble approach by combining six species distribution models including artificial neural network...
In arid and semiarid regions, water demands of different sectors are related to groundwater resources. Therefore, the assessment of its changes is very important to achieve sustainable development and optimal management of aquifers in the future periods. The aim of this study was to evaluate the effects of climate change on Islamabad aquifer. For this purpose, the output of general circulation ...
Among the important challenges facing water resources of the country, one can mention the phenomenon of climate change and its impacts. The General Circulation Models (GCMs) can provide the best information about the response to increasing the concentration of greenhouse gases. Since the outputs of this model do not have sufficient time and space accuracy for studies on the effects of climate c...
Among the important challenges facing water resources of the country, one can mention the phenomenon of climate change and its impacts. The General Circulation Models (GCMs) can provide the best information about the response to increasing the concentration of greenhouse gases. Since the outputs of this model do not have sufficient time and space accuracy for studies on the effects of climate c...
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