中文摘要：

湖表面水温度(SWT ) 是相对它的水化学和水的生态系统的湖状态的重要指示物，除了是重要地区性的气候指示物。然而，包括金海·莱克，在 Qinghai 西藏高原包含湖 SWT 的空间时间的变化的很少文学是可得到的。我们的目的是从 2001 ～ 2010 在金海·莱克的 SWT 学习空间时间的变化，用中等决定的成像分光辐射函数(MODIS ) 数据。把 SWT 的空间模式的季节的周期基于，我们计算了时间的 SWT 变化和长期的趋势，在不同的年里比较了年度平均 SWT 的空间模式，并且印射并且分析每个象素。结果表明每日的 SWT 和空气温度在减少的温度期间分阶段执行的一般水准之间的差别在增加阶段的温度期间比那些相对大。年度平均 SWT 的增加的率在学习时期期间是大约 0.01 桴瑡漠捣牵琠牨畯桧畯 ? 桴 ? 瑳摵 ?牡慥

英文摘要：

Lake surface water temperature （SWT） is an important indicator of lake state relative to its water chemistry and aquatic ecosystem,in addition to being an important regional climate indicator.However,few literatures involving spatial-temporal changes of lake SWT in the Qinghai-Tibet Plateau,including Qinghai Lake,are available.Our objective is to study the spatial-temporal changes in SWT of Qinghai Lake from 2001 to 2010,using Moderate-resolution Imaging Spectroradiometer （MODIS） data.Based on each pixel,we calculated the temporal SWT variations and long-term trends,compared the spatial patterns of annual average SWT in different years,and mapped and analyzed the seasonal cycles of the spatial patterns of SWT.The results revealed that the differences between the average daily SWT and air temperature during the temperature decreasing phase were relatively larger than those during the temperature increasing phase.The increasing rate of the annual average SWT during the study period was about 0.01℃/a,followed by an increasing rate of about 0.05℃/a in annual average air temperature.The annual average SWT from 2001 to 2010 showed similar spatial patterns,while the SWT spatial changes from January to December demonstrated an interesting seasonal reversion pattern.The high-temperature area transformed stepwise from the south to the north regions and then back to the south region from January to December,whereas the low-temperature area demonstrated a reversed annual cyclical trace.The spatial-temporal patterns of SWTs were shaped by the topography of the lake basin and the distribution of drainages.