Extraction of the spatial-temporal lake water surface dataset in the Tibetan Plateau over the past 10 years

A lake water surface extraction method is proposed in this paper , which is combined with lake water surface boundary buffer analyzing and lake by lake segmentation threshold determining , with MOD09Q1 as the data source .The method was successfully used to extract the 8-day lake water surface dataset of the Tibetan Plateau , during the period of 2000-2012 .The accuracy analysis results indicated that , compared with water surface data of the 133 sampling lakes that extracted from the 30 m Landsat TM images , the total precision of the proposed method is 93 .98%;the extracted daily , monthly , and annual lake water surface areas of the Nam Co , the Qinghai Lake , and the Siling Co are well consistent with the remote sensing monitoring results generated by other researchers ;and the differences of the lake quantities and acreage statistical results between the second national lake survey and this study are only 11 and 4 .74%, respectively .This study provides a reference method for large scale and long time series single objects ( such as water , vegetation , and urban ) distribution area extraction .Furthermore , it provides reliable dataset for the lake change research of the Tibetan Plateau in the past 10 years.