CLIMATIC INVESTIGATION ON ARIDITY AND DROUGHT INDICIES

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KAVIANI M.R.

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Journal: GEOGRAPHICAL RESEARCH Year:2001 | Volume:16 | Issue:1 (60) Page(s): 71-89

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Information Journal Paper

Title

CLIMATIC INVESTIGATION ON ARIDITY AND DROUGHT INDICIES

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KAVIANI M.R. | Issue Writer Certificate

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Abstract

A great part of our country, and one third of the world's continents are arid and semi-arid, having problems to meet their water needs. Although different factors are responsible for this aridity, the arid regions mostly suffer from water shortage in relation to the potential evaporation. Therefore aridity is a permanent character of climatic reactions in these regions.Regardless of some factors, (e.g. distance from humidity source, orography effect, water upwelling etc) we learn that the main cause of the aridity on the larger world scale is the descending of air masses and its following adiabatic warming, and strong thermodynamic stability. The result of this is often a clear and cloudless sky, and consequently the reduction of Precipitation in the summer months. In spite of this complexity in the nature of the aridity, there have been many attempts to make a formula for touching aridity and drought. As a great part of our country is covered with arid and semi -arid areas, and usually suffers from severe drought, the choice and application of a method, that could lead to more accurate knowledge about the extent and the manner of spreading drought, can help the organizers to reduce the effects of this natural disaster.In this paper, we introduce some valid and important indices for aridity and drought, and we emphasize its application to the climatic condition in Iran.

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APA: Copy

KAVIANI, M.R.. (2001). CLIMATIC INVESTIGATION ON ARIDITY AND DROUGHT INDICIES. GEOGRAPHICAL RESEARCH, 16(1 (60)), 71-89. SID. https://sid.ir/paper/29911/en

Vancouver: Copy

KAVIANI M.R.. CLIMATIC INVESTIGATION ON ARIDITY AND DROUGHT INDICIES. GEOGRAPHICAL RESEARCH[Internet]. 2001;16(1 (60)):71-89. Available from: https://sid.ir/paper/29911/en

IEEE: Copy

M.R. KAVIANI, “CLIMATIC INVESTIGATION ON ARIDITY AND DROUGHT INDICIES,” GEOGRAPHICAL RESEARCH, vol. 16, no. 1 (60), pp. 71–89, 2001, [Online]. Available: https://sid.ir/paper/29911/en

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