Based on the monthly average temperature series of Huiyang (urban area) and Pingtan (rural area) from1961 to 2004, temperature changes in the urban and rural areas were analyzed.
根据惠州城市和乡村1961—2004年逐月平均气温资料，对比分析了全球变暖背景下惠州城市和乡村的气温变化。
On basin scale, the annual NDVI variation and the annual and monthly average temperature from 1982 to 1999 increased, while the annual precipitation during this period decreased.
流域尺度上，NDVI年较差、年均温度、月均温度在1982~1999年呈升高趋势，年降水量呈减少趋势；
The regression model, in which monthly average temperature varied with longitude and altitude, was established by data of longitude, latitude and altitude obtained by using GPS on the spot.
用GPS实地获取的气象站（哨）的经度、纬度和海拔高度数据建立了月平均气温随纬度、海拔高度变化的回归模型。
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