Gholamali Mozafari; Shahab Shafiei; Zahra Taghizade
Abstract
Over the past few decades, the increase in the temperature of the Earth has caused the disruption of climatic balance of the Earth, causing widespread climatic changes in most parts of the planet, which is referred to as climate change. The aim of this study is to predict climatic changes of Sistan-va-Baluchestan ...
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Over the past few decades, the increase in the temperature of the Earth has caused the disruption of climatic balance of the Earth, causing widespread climatic changes in most parts of the planet, which is referred to as climate change. The aim of this study is to predict climatic changes of Sistan-va-Baluchestan Province using statistical downscaling in which the A2 scenario data of ECHO-G atmospheric general circulation model is implemented.To assess, the climatic changes and the drought in Sistan and Baluchestan Provincewere downscaledby the LARS-WG model during the statistical period of 2012 to 2031.In this study, the data of minimum temperature, maximum temperature, radiation, and precipitation of ECHO-G model, and the actual data of 7 stations in the province, including the Chabahar, Iranshahr, Khash, Saravan, Zabol, Zahak and Zahedan have been used. The overall results of the surveys for the aforementioned period indicate an 8 percent increase in precipitation in the province and a decrease in the number of glacial days and an annual average increase of about 0.3 degrees Celsius. The highest monthly increase in wintertemperatureis at 0.9 degrees Celsius. Moreover, the number of dry days increases in Saravan city and decreases in other cities, and in general, the droughts in this province decrease in the period of 2012- 2031.
Seyyed Hosein Mir Moosavi; Shahab Shafiei; Zahra Taghizadeh
Volume 23, Issue 89 , May 2014, , Pages 81-87
Abstract
Studying the influence of climatic elements on residential environments is an applied subject in meteorology, which has recently received a significant importance in synchronizing buildings and residential environments with dominant climatic situations due to the high costs of energy. The present study ...
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Studying the influence of climatic elements on residential environments is an applied subject in meteorology, which has recently received a significant importance in synchronizing buildings and residential environments with dominant climatic situations due to the high costs of energy. The present study use data collected from different climatic parameters (humidity, minimum temperature, maximum temperature) in an hourly basis. Data was analyzed using Ecotect and One Square software. Moreover, day degree, temperature adaptability index, climatic-environmental situations of the designed building in Mehr-Abad station were investigated. Results indicate that climatic comfort in winter (January, February, and March) and December equals zero. In other words, some of the necessary situations for climatic comfort inside buildings should be achieved using mechanical systems, while others must be achieved by appropriate climatic designing of buildings. Comparing comfort level in and outside of buildings indicates that some of necessary situations for climatic comfort were provided naturally in March. This shows the role of correct designing in reducing the need for mechanical systems. Moreover, temperature adaptability index in different points inside the building indicated 0.94 which shows a completely appropriate situation in the designed building. Finally, Tehran bioclimatic graph was extracted which shows that there is just a 7 percent climatic comfort around the year and Tehran climatic situation is out of comfort range for the other 93 percent of the year.