COMPARISON OF SPATIAL SPREADING OF ARID AND SEMI-ARID CLIMATES IN IRAN DURING 1976-2005

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TAVOUSI T.; MAHMOUDI PEYMAN; SARGOLZAEI MOGHADAM F.

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Journal: Iranian Journal of Range and Desert Research Year:2010 | Volume:17 | Issue:1 (38) Page(s): 74-93

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Title

COMPARISON OF SPATIAL SPREADING OF ARID AND SEMI-ARID CLIMATES IN IRAN DURING 1976-2005

Author(s)

TAVOUSI T. | MAHMOUDI PEYMAN | SARGOLZAEI MOGHADAM F. | Issue Writer Certificate

Keywords

DESERTIFICATIONQ2

ARID CLIMATEQ2

SEMI-ARID CLIMATEQ2

SPATIAL CHANGESQ3

UNEP INDEXQ3

Abstract

On the basis of definition of United Nation Convention on Combating DESERTIFICATION: “DESERTIFICATION is land degradation on arid, semi-arid and sub- humid arid regions by reason of climate change and human activities”. Also on the basis of this Convention, arid, semi-arid and sub-humid arid regions is regions that quotient between precipitation with potential evapotranspiration is approximately 0.05 to 0.65. Annual temperature averages and total annual precipitation from 45 synoptic meteorological stations for a 30 years period (1976-2005) has been collected the Meteorological Organization of Iran. In this paper for study of spatial spreading trend of arid and SEMI-ARID CLIMATEs of Iran of bioclimatic index of UNEP (United Nation Environment Programme) were used. Thirty years period divided to three subgroups: (1976-1985), (1986-1995) and (1996-2005). Then for each subgroup provided zoning maps and finally zoning maps were subtracted from each other. Results showed that: (1) The most spatial spread of arid and SEMI-ARID CLIMATEs observed in third decade and (2) The most severe changes of spatial climate observed in west and north-west and south-east of Iran, respectively.

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APA: Copy

TAVOUSI, T., MAHMOUDI, PEYMAN, & SARGOLZAEI MOGHADAM, F.. (2010). COMPARISON OF SPATIAL SPREADING OF ARID AND SEMI-ARID CLIMATES IN IRAN DURING 1976-2005. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 17(1 (38)), 74-93. SID. https://sid.ir/paper/356535/en

Vancouver: Copy

TAVOUSI T., MAHMOUDI PEYMAN, SARGOLZAEI MOGHADAM F.. COMPARISON OF SPATIAL SPREADING OF ARID AND SEMI-ARID CLIMATES IN IRAN DURING 1976-2005. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2010;17(1 (38)):74-93. Available from: https://sid.ir/paper/356535/en

IEEE: Copy

T. TAVOUSI, PEYMAN MAHMOUDI, and F. SARGOLZAEI MOGHADAM, “COMPARISON OF SPATIAL SPREADING OF ARID AND SEMI-ARID CLIMATES IN IRAN DURING 1976-2005,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 17, no. 1 (38), pp. 74–93, 2010, [Online]. Available: https://sid.ir/paper/356535/en

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