عنوان مقاله :
بررسي شدت و دامنهي خشكسالي در غرب ايران
عنوان به زبان ديگر :
A Review of Intensity and Spread of Droughts in West Part of Iran
پديد آورندگان :
ذوالفقاري، حسن نويسنده Zolfaghari, H
اطلاعات موجودي :
دوفصلنامه سال 1383 شماره 12
رتبه نشريه :
فاقد درجه علمي
كليدواژه :
تداوم , شدت , خشكسالي , سينوپتيك , دوره ي آماري
چكيده لاتين :
Annual rainfall is selected and used for analysis of droughts for 25 synoptic
and climatogical stations of western part of Iran for period of 1966-1999.
This study using annual rainfall index, shows that within 34 years, Iran has
faced 17 dry years and 16 wet years. According to the classification of
droughts, 12 were moderate and 4 average. Based on the classification of
Subramaniam, the lowest land coverage occurred in 1994 with 8% and the
highest coverage was in 1995 with 100%. Years 1970, 1973, 1985, 199 with
land coverage of over 90% were the most important cases.
In in recent years, total rainfall has decreased and droughts increased. The
result of study show that the level ofprecipitation decrease was insignificant.
عنوان نشريه :
فضاي جغرافيايي
عنوان نشريه :
فضاي جغرافيايي
اطلاعات موجودي :
دوفصلنامه با شماره پیاپی 12 سال 1383
كلمات كليدي :
#تست#آزمون###امتحان