气象干旱指数在青藏高原东缘高寒草地的适用性评价及2022年干旱监测分析
范浩男, 王玮, 戴昂, 马林飞, 李肖康

Applicability evaluation of meteorological drought index in alpine grassland at the eastern edge of the Qinghai-Xizang Plateau and drought monitoring in 2022
FAN Haonan, WANG Wei, DAI Ang, MA Linfei, LI Xiaokang
表1 4种干旱指数精度分析结果
Tab.1 Accuracy identification results of four drought indices
干旱指数 一致性样本数/个 非一致性样本数/个 识别精度/% 误差/%
有旱(Sdry 无旱(Lnormal 多测(Lfault 漏测(Smissed
PA 638 344 704 349 48.21 51.79
PDSI 721 483 512 319 59.16 40.84
SPI 481 308 559 687 38.79 61.21
MCI 569 192 522 752 37.42 62.58