近22年来南沙海区的气温变化

摘要

运用南沙永署礁气象观测站1989-2010年的气温资料,对近22年来南沙海区的气温变化进行了分析,结果表明:近22年来南沙海区气温分两个阶段呈阶梯上升趋势,增长率为0.336℃/10年,升温幅度白天大于夜间.四季中秋季升温幅度最大,冬季升温幅度最小.2010年是近22年来南沙海区最暖的一年.%Based on the air temperature data collected at the Yongshu Atoll meteorological observation station in Nansha Islands during 1989 to 2010, the variability of air temperature is analyzed. The temperature variation is characterized by a cascade trend with a growth rate of 0.336℃ per ten years. The temperature increasing rate is higher in the day time than that at night. Seasonally, the maximum and minimum of temperature-raising magnitude is in autumn and in winter, respectively. It is also found that the year 2010 is the warmest year among the 22 years in Nansha Island sea area.