Scientific- Research Quarterly of Geographical Data (SEPEHR)

Scientific- Research Quarterly of Geographical Data (SEPEHR)

Comparative Analysis of Iran’s Average Monthly Heating and Cooling Degree Days during the Past and Future Periods

Document Type : Research Paper

Authors
Kamal Omidvar 1
Reza Ebrahimi 2
Ahmad Mazidi 3
Teymur Alizadeh 4
1 Professor of climatology, University of Yazd
2 Ph.D student of climatology, University of Yazd
3 Associate Professor of climatology, University of Yazd
4 Ph.D student of climatology, University of Tehran
10.22131/sepehr.2018.30535
Abstract
Abstract[1]
Increasing demand for energy against the reduction of comprehensive energy resources along with the consequences of global warming, make the importance of a quantitative review of changes in the need for cooling, heating of the country in the past and in the future decades essential. First, the overall atmospheric circulation data was extracted from the EH5OM database. These data were under the A1B scenario of the International Climate Change Board and were downscaled with regional climate model data of average daily temperature of 0.27 x 0.27 degree, which covers approximately 30 x30 kilometer dimensions of Iran in the time interval of (2015-2050). The average daily temperature data of the past period were extracted from the ISFZARI databases during the statistical period of (1970-1970) on cells measuring 15 x 15 km. throughout the country. The temperature threshold of 11 degrees was used to calculate the heating degree day and the threshold of 18.3 to calculate the cooling degree day. The monthly average of these parameters was obtained on a matrix of 12 × 2140 (future) and 7187 * 12 (past), in which the rows represent the time (month of the year) and the columns represent the locations of the cells. Then the monthly average map of both periods was drawn and interpreted. The results indicate that the cooling of the air in the coming decades compared to the previous period in January and December in most parts of the country except for the coastal areas and the hinterlands, and the warming of the air in most parts of the country in the warm months of the year (June, July, August) will have significant effects on the amount of energy used for heating and cooling.



[1] - به دلیل کیفیت نامناسب ترجمه (چکیده مبسوط انگلیسیِ دریافتی) نشریه، به ناچار اقدام به ترجمه مجدد متن مختصر چکیده فارسی و انتشار آن به جای چکیده مبسوط انگلیسی نموده است.
 
Keywords
EH5OM Model
Downscaling
RegCM4 Model
Iran
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