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High Mountain Asia ASCAT Freeze/Thaw/Melt Status, Version 1
Data set id:
HMA_FreezeThawMelt_ASCAT
DOI: 10.5067/L319IEPK63VC
This is the most recent version of these data.
Version Summary
Initial release

Overview

This data set contains bulk landscape frozen or thawed status over seasonally frozen land, as well as snowmelt status over glacierized areas for the High Mountain Asia region. Daily Freeze/Thaw/Melt (F/T/M) status is derived from vertically polarized (V-pol) C-band (5.255 GHz) backscatter measurements that were acquired by the Advanced Scatterometer (ASCAT) on EUMETSAT Metop-A and Metop-B satellites. Swath-ordered observations are spatially enhanced using the Scatterometer Image Reconstruction (SIR) algorithm, posted on Earth-fixed 4.45 km grids, and interpolated to a daily product from the original 3-day A.M. overpasses.
Parameter(s):
FREEZE/THAW
Platform(s):
METOP
Sensor(s):
ASCAT
Data Format(s):
PNG, HDF5, GeoTIFF
Temporal Coverage:
1 January 2009 to 12 October 2017
Temporal Resolution:
  • 1 day
Spatial Resolution:
  • 4.45 km
  • 4.45 km
Spatial Reference System(s):
WGS 84
EPSG:4326
Spatial Coverage:
N:
44.683
S:
19.125
E:
105.577
W:
63.427
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

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Many NSIDC DAAC data sets can be accessed using the NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface.Users have the option to
To convert HDF5 files into binary format you will need to use the h5dump utility, which is part of the HDF5 distribution available from the HDF Group. How you install HDF5 depends on your operating system.
All data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system, using wget or curl. Basic command line instructions are provided in the article below.