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Description

This data set contains annual surface melt onset and freeze onset dates across all glaciers in the Hindu Kush Himalayas (HKH) retrieved from time series synthetic aperture radar (SAR) imagery. The data set was based on analysis of C-band Sentinel-1 A/B SAR time series, comprising 32,741 Sentinel-1 A/B SAR images. The duration of annual glacier surface melt was determined for 105,432 mapped glaciers (83,102 km2 glacierized area) during the calendar years 2017-2020.

Product Summary

Platforms
Sentinel-1A ,
Sentinel-1B
Instruments
C-SAR
Spatial Extent

N: 39.3278838 S: 15.9481506 E: 105.0568047 W: 60.8416366

Spatial Resolution
90 Meters x 90 Meters
Geographic Region
HIMALAYAS
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2017-01-01 to 2020-12-31
Concept ID
C3249539596-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
4
Processing Level
3
Science Keywords
Surface Melt

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Steiner, N., McDonald, K., & Scher, C. (2021). High Mountain Asia Annual 90m Glacier Surface Melt/Freeze Phenology from SAR Imagery, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/05I6ZHZWHSVV Date Accessed: 2025-12-14

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