Yarsha Khola Watershed Land Use GIS Data from Nepal

Yarsha Khola watershed in Nepal is covered by a GIS database containing land use vector data for 1961, 1981, 1992, and 1996. The data includes polygon features digitized from topographic maps, Land Resources Mapping Project (LRMP) data, and air photographs, as well as Village Development Committee (VDC) boundaries and a 1-meter resolution orthophoto mosaic. The dataset is hosted on NASA EarthData and originates from the organization CEOS_EXTRA.

Use Cases

• Analyze land use change over time based on the land use polygon layers for 1961, 1981, 1992, and 1996.
• Conduct watershed boundary analysis based on the VDC (Village Development Committee) polygon layer.
• Perform high-resolution visual analysis or base map creation based on the 1-meter resolution orthophoto mosaic.

Strengths

• Provides multi-temporal land use data spanning four distinct years (1961, 1981, 1992, 1996).
• Includes a high-resolution (1-meter) orthophoto mosaic for visual reference.
• Data sources are documented, including map scales (e.g., 1:50,000, 1:25,000) and projection (Nepal 87).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.
• Row count and file formats are unknown, which may limit suitability assessment.

Provenance

Source

CEOS_EXTRA, via NASA EarthData.

Collection Method

Digitized from topographic maps, LRMP project data, and air photographs.

Time Range

Land use data covers 1961, 1981, 1992, and 1996.

Freshness

Last updated date is unknown.

Geography

Yarsha Khola watershed, Nepal.