River networks dataset at 1:250 000 in Three Rivers Source Region (2015)


This data comes from the National Catalogue Service for Geographic Information, which was provided to the public free of charge by the National Basic Geographic Information Center in November 2017. We spliced ​​and trimmed Three Rivers Source Region as a whole to facilitate its use in the study of Three Rivers Source Region. The current status of the data is 2015.

This dataset is the Three Rivers Source Region 1: 250,000 water system data, including three layers of water system surface (HYDA), water system line (HYDL) and water system point (HYDP). The water system surface (HYDA) includes lakes, reservoirs, double-line rivers, and ditches; the water system line (HYDL) includes single-line rivers, ditches, and river structure lines; and the water system points (HYDP) include springs and wells.

        HYDA attribute item name and definition:

Attribute item Description Sample

GB National standard classification code 210101

HYDC Water system name code KJ2103

NAME Name Heihe

WQL Water quality Fresh

PERIOD Seasonal months 7-9

TYPE Type Pass

         HYDL attribute item name and definition:

Attribute item Description Sample

GB National standard classification code 210101

HYDC Water system name code KJ2103

NAME Name Heihe

PERIOD Seasonal months 7-9

         HYDP attribute item name and definition:

Attribute item Description Sample

GB National standard classification code 210101

NAME Name Unfreezing spring

TYPE Type Fresh

ANGLE Angle 75

          Water system GB code and its meaning:

 Attribute item Code Description

GB 210101 Ground river

210200 Seasonal river

210300 Dry up river

230101 Lake

230102 Pond

230200 Seasonal lake

230300 Dry lake

240101 Built reservoir

240102 Reservoir in building


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Cite as:

National Catalogue Service for Geographic Information. River networks dataset at 1:250 000 in Three Rivers Source Region (2015). A Big Earth Data Platform for Three Poles, 2018. (Download the reference: RIS | Bibtex )

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.


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License: This work is licensed under an Attribution 4.0 International (CC BY 4.0)


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Keywords
Geographic coverage
East: 102.58 West: 89.15
South: 30.79 North: 37.38
Detail
  • File size: 77 MB
  • Browse count: 1,577 Times
  • Apply count: 50 Times
  • Share mode: online
  • Temporal coverage: 2015-01-01 To 2015-12-31
  • Updated time: 2019-08-09
Contact Information
: National Catalogue Service for Geographic Information  

Distributor: A Big Earth Data Platform for Three Poles

Email: poles@itpcas.ac.cn

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