Map and data of glacial landforms and fluvial terraces on the southeastern margin of the Tibetan Plateau

Ramona Astrid Alexa Schneider, Robin Blomdin, Ping Fu, Xiangke Xu, Arjen Peter Stroeven

This dataset includes shapefiles of glacial landforms (ice-marginal moraines, glacial lineations, glacial valleys, scoured terrain) and fluvial terraces in the Shaluli Shan located on the SE margin of the Tibetan Plateau, and the resulting map.

These landforms have been mapped to reconstruct the paleoglacial footprint of the area. In addition, the high-resolution mapping of individual landforms provides a basis for detailed geomorphological and geochronological studies.

The shapefiles have been created through visual interpretation of digital elevation data (12 m spatial resolution) derived from radar images taken by the satellite TanDEM-X provided by the German Aerospace Center. Individual features were outlined manually over an area covering 11,000 square kilometres. Ice-marginal moraines, glacial valleys, scoured terrain, and fluvial terraces were mapped as polygons. Glacial lineations were mapped as polylines, and additionally, where possible, as polygons.

Citation

Ramona Astrid Alexa Schneider, Robin Blomdin, Ping Fu, Xiangke Xu, Arjen Peter Stroeven (2021) Map and data of glacial landforms and fluvial terraces on the southeastern margin of the Tibetan Plateau. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/schneider-2021-tibet-1

References

Schneider RAA, Blomdin R, Fu P, Xu XK, Stroeven AP (2021) Paleoglacial footprint and fluvial terraces of the Shaluli Shan, SE Tibetan Plateau. The Journal of Maps. https://doi.org/10.1080/17445647.2021.1946443

Data description

The data set contains a published map (pdf) and seven shapefiles:

• aerial_scouring.shp (scoured terrain; polygon shapefile)
• glacial_valleys.shp (glacial valleys; polygon shapefile)
• lineations_TanDEMX.shp (glacial lineations; polyline shapefile)
• moraines_TanDEMX.shp (ice-marginal moraines; polygon shapefile)
• shape.shp (outline of the mapping area; polygon shapefile)
• streamlined_features.shp (asymmetric/streamlined lineation features; polygon shapefile)
• terraces.shp (fluvial terraces; polygon shapefile)

Projected coordinate system: Lambert Conformal Conic

Map datum: WGS84

Comments

The map and data are also available as supplementary material to Schneider et al. (2021).

The goal of the research project within which this dataset was created is a paleoglacial reconstruction based on glacial and fluvial geomorphology from TanDEM-X elevation data with a horizontal spatial resolution of 12 m. Furthermore, a glacial chronology based on dating of glacial and fluvial landforms using TCN and OSL is developed.