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High Mountain Asia ASCAT Freeze/Thaw/Melt Status V001

Published by NASA NSIDC DAAC | National Aeronautics and Space Administration | Catalog Last Checked: May 18, 2026 at 04:49 PM | Dataset Last Updated: March 31, 2025
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.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
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contactPoint 
{
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  "@type": "vcard:Contact",
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}
description 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.
distribution 
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identifier C1526098617-NSIDC_ECS
issued 2009-01-01
keyword 
[
  "cryosphere",
  "earth-science",
  "snow-ice"
]
landingPage https://doi.org/10.5067/L319IEPK63VC
language 
[
  "en-US"
]
modified 2025-03-31
programCode 
[
  "026:001"
]
publisher 
{
  "name": "NASA NSIDC DAAC",
  "@type": "org:Organization"
}
spatial 63.427 19.125 105.577 44.683
temporal 2009-01-01T00:00:00Z/2017-10-12T23:59:59.999Z
theme 
[
  "geospatial"
]
title High Mountain Asia ASCAT Freeze/Thaw/Melt Status V001

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