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https://github.com/andbetter/hand

Create a large scale (possibly) global HAND rastr

https://github.com/andbetter/hand

Science Score: 26.0%

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    Low similarity (7.2%) to scientific vocabulary
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Repository

Create a large scale (possibly) global HAND rastr

Basic Info
  • Host: GitHub
  • Owner: AndBetter
  • Language: Python
  • Default Branch: main
  • Size: 0 Bytes
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  • Open Issues: 0
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Created about 1 year ago · Last pushed about 1 year ago
Metadata Files
Readme

README.md

HAND

Create a large scale (possibly) global HAND raster. The repository contains a script to create the HAND index a .yml file to build a suitable conda environment to run the script.

NOTE: The current version of Pysheds (i.e. one of the packages used in the processing chain) has some bugs which need to be fixes as described here : https://github.com/mdbartos/pysheds/pull/268. Chiefely, the "pgrid.py", "sgrid.py", "sview.py" scipts need to be replaced in the conda intallation of the package.

The script requires as an data inputs: 1. a DEM (possibly a DTM). 2. the "occurrence" dataset of the Global Surface Water Explorer - GSWE (https://global-surface-water.appspot.com/download)

The script allowes the user to cahnge the following input parameters: 1. The upstream area required to initialize a drainage cell 2. The flow direction method used to identify drainage directions 3. A threshold frequency used for thresholding the "occurrence" layer of the GSWE in order to identify water bodies 4. A threshold area for filtering small contiguous water bodies (i.e. contiguous water bodies smaller than the threshold will be removed and not considered as drainage cells)

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  • Login: AndBetter
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