Assessing and mitigating meteorological drought in the subtropical Kandi (drought prone) region of Jammu
Meteorological drought is a prolonged absence of normal precipitation. Precipitation and temperature are two major variants affecting aridity of a region. A simple method was developed with precipitation and temperature data for assessing drought event by determining aridity index as, Ia=(P-IPE)/mean annual maximum temperature; where P is the annual precipitation (mm) and Ips is potential evaporation, calculated as, IPE=1/100 (mean annual maximum temperature x annual precipitation in mm). If a region has low mean annual temperature, a rainfall of relatively low magnitude and intensity may be sufficient for optimum flows and aquifer recharge compared to high intensity rainfall of the same magnitude received in areas having high mean annual temperature. A value below 25 indicated aridity and its severity increases with decrease in the value. Values above 25 are indicative of optimum rainfall. The method can also be used for determining seasonal aridity indices.
meteorological drought assessing sub-tropical Kandi region of Jammu
U.C.SHARMA vikas SHARMA
Centre for Natural Resources Management,V.P.O.Tarore,district -181133 J&K,India S.K.University of Agricultural Sciences & Technology,Chatha,Jammu-180009,J&K,India
国际会议
The Four Conference of Asia Pacific Association of Hydrology and Water Resources(亚太地区水文水资源协会第4届科学大会)
北京
英文
167-172
2008-11-03（万方平台首次上网日期，不代表论文的发表时间）