叶尼塞河流域界线数据-世界地理数据大百科辞条
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叶尼塞河（英文：Yenisei，俄文：Енисе́й）流域是指叶尼塞河及安加拉河（又称上通古斯卡河）、中通古斯卡河、下通古斯卡河、克姆契克河、阿巴坎河、图巴河（Tuba river）、坎河等支流汇水区域。叶尼塞河起源于蒙古境内库苏古尔湖以南，在源头由伊德尔河和木伦河汇合，向下鄂尔浑河汇合为色楞格河。出贝加尔湖后为安加拉河。然后几乎沿东经95-85度经线由南向北直奔北冰洋，在喀拉海入北冰洋。流域4个极点地理坐标分别为西起东经73度37分43秒，东至东经113度50分53秒；南起北纬46度27分28秒，北至北纬73度38分24秒。全流域面积265.97万平方千米（2,659,698.58 km2），流域界线长31,237.98千米。叶尼塞河流域覆盖了中西伯利亚大部分地区，是北冰洋水系中水量最大的河流流域。本数据是在ASTER-DEM数据基础上，根据流域面积提取算法提取初步结果，再与google earth遥感影像匹配后生成。数据采取.kmz 和.shp 格式存储。压缩后数据量26.5MB。
The Yenisei River basin (known as Yenisei in English and Енисе́й in Russian) refers to the drainage area of the Yenisei River and its tributaries including the Angara River (also called the Upper Tunguska River), the Middle Tunguska River, the Lower Tunguska River, the Kemchik River, the Abakan River, the Tuba River, the Kan River and other tributaries. The Yenisei River originates south of Lake Khovsgol in Mongolia. At its source, the Ider River and the Mörön River converge, and then merge with the Orkhon River downstream to form the Selenge River. After exiting Lake Baikal, the waterway becomes the Angara River. It then flows almost directly northward within the longitudinal range of 85°E to 95°E, emptying into the Arctic Ocean at the Kara Sea. The four extreme geographic coordinates of the basin are: westernmost point at 73°37'43"E, easternmost point at 113°50'53"E; southernmost point at 46°27'28"N, and northernmost point at 73°38'24"N. The total drainage area of the basin is 2.6597 million square kilometers (2,659,698.58 km²), and the total length of the basin boundary is 31,237.98 km. The Yenisei River basin covers most of Central Siberia, and is the largest river basin in the Arctic Ocean drainage system by water discharge. This dataset was generated by first extracting preliminary results using a basin area extraction algorithm based on ASTER-DEM data, then matching the results with Google Earth remote sensing images. The data is stored in .kmz and .shp formats, with a compressed file size of 26.5 MB.
