Identification of the Compound Dry(Wet)-Cool(Warm) Trend in the Huang-Huai-Hai Plain, China, 2001 -2021

We present a method to determine the compound dry (wet) -cool (warm) trend (DCT) type (including drying-cooling, wetting-cooling, drying-warming, and wetting-warming) and the Dry (wet) -Cool (warm) Trend Intensity Index (DCTII) based on temperature and precipitation data. The compound DCT type and trend intensity of the Huang-Huai-Hai Plain(HHH Plain) from 2001 to 2021 were obtained, and its variation characteristics in time and space were studied.

本研究提出了一种基于温度与降水数据确定复合干（湿）-冷（暖）趋势类型（包括干燥-冷却、湿润-冷却、干燥-变暖及湿润-变暖）及其干（湿）-冷（暖）趋势强度指数（DCTII）的方法。针对2001年至2021年黄淮海平原（HHH平原）的数据，获取了其复合干（湿）-冷（暖）趋势类型及趋势强度，并对其时空变化特征进行了深入研究。