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Yellow River Basin Hydrological Analysis Dataset - Stream Length
  • 2021/09/01 17:15
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English name
Yellow River Basin Hydrological Analysis Dataset - Stream Length
CSTR
CSTR:11738.11.ncdc.nieer.2020.1675
DOI
10.12072/ncdc.NIEER.db0015.2020
Share type
Online
Category
Hydrology
source site
High quality development of the Yellow River Basin
contributors
Han liqin , Zhang Yaonan , Kang jianfang
Datasets description

 This dataset contains stream length data for the entire Yellow River basin, including its upstream, midstream, and downstream sections.

 Stream length refers to the maximum ground distance, projected onto the horizontal plane, from a point on the ground along the direction of water flow to the starting point (or endpoint) of its flow direction. Stream length is a major factor in soil and water conservation in hydrology. When other conditions are the same, the intensity of hydraulic erosion is determined by the length of the slope over which the water flows; the longer the slope, the greater the concentrated flow, and the stronger the erosive force of the water. Stream length directly affects the velocity of overland flow, and thus affects its erosive force on the ground soil.

 The data is divided into downstream (down) and upstream (up) directions.

Base information
collect time 2020/01/01  -  2020/03/01
collect place Yellow River Basin
data size 6.1 GiB
data format tiff
Coordinate system WGS84
Projection WGS_1984_Word_Merctor
Data thumbnail
Data source description

 Produced independently, the spatial resolution of the original topographic slope dataset for the Yellow River basin is 30 meters.

Data processing method

 Extracted using the Hydrology software tool.

Data quality description

 This dataset has been corrected using DEM, with both horizontal and vertical accuracies being less than one pixel.

Citations and annotations
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For the achievements published in English, please refer to the following specifications： The dataset is provided by National Cryosphere Desert Data Center. (http://www.ncdc.ac.cn).

Data reference
  1. Han liqin, Zhang Yaonan, Kang jianfang. Yellow River Basin Hydrological Analysis Dataset - Stream Length. National Cryosphere Desert Data Center(http://www.ncdc.ac.cn), 2021. https://cstr.cn/CSTR:11738.11.ncdc.nieer.2020.1675.
  2. Han liqin, Zhang Yaonan, Kang jianfang. Yellow River Basin Hydrological Analysis Dataset - Stream Length. National Cryosphere Desert Data Center(http://www.ncdc.ac.cn), 2021. https://www.doi.org/10.12072/ncdc.NIEER.db0015.2020.
license agreement
Creative Commons License   This work is licensed under a Creative Commons Attribution 4.0 International License.
# title file size
1 FlowLen_Flow_down（水流长度-坡长）.tfw 94 Bytes
2 FlowLen_Flow_down（水流长度-坡长）.tif 3.0 GiB
3 FlowLen_Flow_down（水流长度-坡长）.tif.aux.xml 2.6 KiB
4 FlowLen_Flow_down（水流长度-坡长）.tif.ovr 1.1 GiB
5 FlowLen_Flow_up（水流长度-坡长）.tfw 94 Bytes
6 FlowLen_Flow_up（水流长度-坡长）.tif 1.4 GiB
7 FlowLen_Flow_up（水流长度-坡长）.tif.aux.xml 2.0 KiB
8 FlowLen_Flow_up（水流长度-坡长）.tif.ovr 525.7 MiB
9 _ncdc_meta_.json 3.9 KiB
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How to get the data 
east 119.34
west  95.88
south  32.84
north  41.84
Export metadata
Service information
contacts:
Li Hongxing
phone:
0931-4967596
mailbox:
ncdc@lzb.ac.cn
Contact information
contributors:
Han liqin , Zhang Yaonan , Kang jianfang
author:
Han liqin
manager:
Han liqin

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