1) drought frequency
干旱频数
2) Drought equivalent
干旱频率
3) drought index
干旱指数
1.
Application of fractal theory in forecasting the drought index in the west of Jilin Province;
分形理论在吉林西部干旱指数预测中的应用
2.
Analysis on the application of drought index in the dry-farming region of east Qinghai;
干旱指数及其在青海东部旱区特征分析上的应用
3.
this paper introduces the calculation of the drought index of the various stations at monthly and annually based on the precipitation and evaporation data of each delegating station between 1966-2005.
本文应用1966-2005年长春地区各代表站的降水量和蒸发量资料,计算了各站各年、各月的干旱指数r。
4) Aridity index
干旱指数
1.
The changing characteristics of temperature,rainfall and aridity index in recent 40 years in Shihezi region were analyzed in this paper.
分析了40 a气温、降水及干旱指数的变化特征,结果表明:(1)近40 a石河子地区平均温度以0。
5) Drought days
干旱日数
1.
Drought days during tree growth season were estimated from regression model including both.
进而利用树木年轮资料重建了该地区过去３００年来干旱日数，与实际旱涝情况吻合较好。
6) Palmer drought severity index
Palmer干旱指数
1.
Being the Palmer drought severity index—PDSI has been widely applied in the world since the 1960s.
结果表明:将径流量考虑到Palmer干旱指数中并改变蒸散量的算法,使得该指数对河西灌溉区干旱情况的监测均有所改善。
2.
Based on the continuous observation data at the 90 meteorological sites in Xinjiang,a self-calibrating Palmer drought severity index(PDSI) is firstly used to investigate the annual and seasonal variation of drought and wet conditions in the region during 1961-2003.
利用新疆气象局提供的90个气象台站的连续观测记录,计算了1961~2003年新疆地区年平均和季节平均自适应Palmer干旱指数的气候态及其变化趋势,表明新疆地区气候就平均态而言整体上属于正常的气候条件,研究时段内年平均和季节平均气候以湿润化趋势为主要变化特征,定性的分析显示地表气温的持续上升倾向于引起干旱化,而降水的增加则有利于气候的湿润化趋势。
补充资料：宽频数码技术
充分利用存储卡的空间最大限度的记录活动影象及声音。（奥林巴斯专有技术）
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条