贵州省两次气象干旱对比分析及基于机器学习的干旱预测模型建立

王玥彤, 何东坡, 李忠燕, 王烁, 陈早阳

Analysis of two meteorological drought events in Guizhou Province and establishment of drought prediction model based on machine learning

WANG Yuetong, HE Dongpo, LI Zhongyan, WANG Shuo, CHEN Zaoyang

图4 2011（a、c、e）、2022（b、d、f）年200 hPa（a、b）、500 hPa（c、d）位势高度场（等值线）及其距平（填色）（单位：gpm）及850 hPa（e、f）风场距平（单位：m·s-1） （红色实线为气候态；A为反气旋式环流，C为气旋式环流；蓝色箭头为风场距平方向）

Fig.4 The geopotential height field (contours) and its anomaly (the color shaded) at 200 hPa (a, b) and 500 hPa (c, d) (Unit: gpm)，and wind field anomaly (Unit: m·s-1) at 850 hPa (e, f) in 2011 (a, c, e) and 2022 (b, d, f) (The red line indicates climatic state; the character A indicates anticyclonic circulation and C indicates cyclonic circulation; the blue arrows indicate the direction of wind anomaly)