DEDI监测到2019年干旱过程罕见的极端性 (IMAGE) Science China Press Caption 1979~2019年期间西南典型干旱区(21~26.2°N,98.3~103.6°E)4~8月DEDI的年际变化。从长期时间序列来看,DEDI能监测到2019年春夏季干旱是云南地区近40年来的一次破纪录极端事件。绘图:张霞 Credit ©《中国科学》杂志社 Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.