Hydrological Flow Direction for High Mountain Asia Headwaters

High Mountain Asia 5 arc-minute hydrological flow direction data for the headwaters of the Amu Darya and Indus River basins. The dataset was developed by the NSIDC_CPRD organization to support the University of New Hampshire Water Balance Model and related climate projection studies. It was last updated in March 2023.

Use Cases

• Modeling water balance using deterministic eight (D8) flow direction data for the Amu Darya headwaters.
• Analyzing surface runoff pathways for the Indus River basin headwaters at 5 arc-minute resolution.
• Integrating flow direction layers into climate projection models for parts of Afghanistan, Tajikistan, Kyrgyzstan, and Pakistan.
• Calibrating hydrological models with geospatial flow data for High Mountain Asia regions.

Strengths

• Flow directions are provided at a consistent 5 arc-minute spatial resolution.
• Data domain spans multiple countries: Afghanistan, Tajikistan, Kyrgyzstan, and Pakistan.

Limitations

• Specific row count, column details, and file size are unknown.
• The dataset's temporal coverage and update frequency are not specified.
• Data is limited to the headwaters of two specific river basins.

Provenance

Source

NSIDC_CPRD via NASA Earthdata.

Collection Method

Developed to support the University of New Hampshire Water Balance Model.

Time Range

null

Freshness

Last updated on 2023-03-23.

Geography

Headwaters of the Amu Darya and Indus River basins, spanning parts of Afghanistan, Tajikistan, Kyrgyzstan, and Pakistan.