伊犁绿洲、水系与高程分类数据集

伊犁河谷绿洲（Yili Oasis）位于我国新疆维吾尔自治区伊犁哈萨克自治州境内。基于Google Earth影像研发的数据表明，绿洲范围是43°17′18″N-44°24′24″N,80°23′12″E-84°13′38″E。基于Albers投影计算的绿洲总面积为9929.19 km²，基于Lambert投影计算的绿洲总周长为2666.09 km。滋养伊犁河谷绿洲的河流包括特克斯河、喀什河、巩乃斯河、库克苏河和伊犁河，它们的干流长度分别为411.26 km、303.00 km、234.83 km、 198.14 km和192.75 km。伊犁河集水区（Yili River Catchment）是维持伊犁河谷绿洲存在的诸河流的汇水区。它的具体位置是42°15′31″N-44°50′31″N，79°23′11″E-84°59′58″E。该集水区面积为62713.63 km²，集水区边界长度为1719.72 km。集水区高程分类数据集是基于ASTER GDEM 30 m数据研发的。高程500 m以下为一种类型，向上每间隔500 m划为一类，一共13种类型。该数据集内容包括：（1）中国境内的伊犁河谷绿洲边界数据；（2）滋养绿洲的水系数据；（3）集水区边界数据；（4）集水区高程分类数据。数据集存储为.kmz、.shp与.tif格式，由43个数据文件组成，数据量为70.1 MB（压缩为4个文件，46.5 MB）。

The Yili Oasis is located in the Ili Kazakh Autonomous Prefecture, Xinjiang Uygur Autonomous Region, China. Data developed based on Google Earth imagery indicates that the spatial extent of the oasis ranges from 43°17′18″N to 44°24′24″N and 80°23′12″E to 84°13′38″E. The total area of the oasis, calculated using the Albers projection, is 9929.19 km², while its total perimeter, calculated using the Lambert projection, is 2666.09 km. The rivers that nourish the Yili Oasis include the Tekes River, Kashi River, Künes River, Kukesu River, and Ili River, with their main stream lengths being 411.26 km, 303.00 km, 234.83 km, 198.14 km, and 192.75 km respectively. The Yili River Catchment is the confluence basin of the rivers sustaining the Yili Oasis, with its specific location ranging from 42°15′31″N to 44°50′31″N and 79°23′11″E to 84°59′58″E. The area of this catchment is 62713.63 km², and the length of its boundary is 1719.72 km. The elevation classification dataset of the catchment was developed based on ASTER GDEM 30 m data. Areas below 500 m are classified as one category, and each subsequent 500 m elevation interval forms a separate type, totaling 13 categories. This dataset includes the following contents: (1) Boundary data of the Yili Oasis within China; (2) Hydrological network data that nourishes the oasis; (3) Boundary data of the Yili River Catchment; (4) Elevation classification data of the catchment. The dataset is stored in .kmz, .shp, and .tif formats, consisting of 43 individual data files with a total size of 70.1 MB (compressed into 4 files with a size of 46.5 MB).

搜集汇总

背景与挑战

背景概述

该数据集包含中国新疆伊犁河谷绿洲的边界数据、滋养绿洲的水系数据、流域边界数据以及流域高程分类数据。数据集基于Google Earth影像和ASTER GDEM 30米数据开发，存储格式多样，适用于地理信息系统研究。