Array · collection · 2026
Arctic Sea Ice Seasonal Change and Melt/Freeze Climate Indicators from Satellite Data, Version 2
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/2zjkkyxylyz0
NSIDC-0747 contains melt-season indicators that can be used to delineate various stages in the summer melt and freeze-up period of sea ice.
Description
The data were primarily derived using Sea Ice Concentration (SIC) observations from the NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration (G02202) and the Snow Melt Onset Dates (NSIDC-0105) from SSM/I-SSMIS Brightness Temperatures products. The main parameters for this data set include the dates of melt onset, early melt onset, and continuous melt onset; dates of early and continuous freeze onset; day of opening (last day SIC is above 80%); day of retreat (last day SIC drops below 15%); day of advance (first day SIC increases above 15%); day of closing (first day SIC increases above 80%); total outer ice-free period; total inner ice-free period; seasonal loss-of-ice period; seasonal gain-of-ice period; and the seasonal ice zone.
These data are available for 1979 through 2024 and are gridded on the NSIDC northern hemisphere polar stereographic grid at 25 km.
Links
Get the data
- Resource doi.org/10.5067/2zjkkyxylyz0 ↗
Provides access to data, documentation, tools, citation information, support, and other resources.
landing page · documentation · download · DOI / persistent id · from NASA CMR, data nasa gov
- Resource doi.org/10.3390/rs10091328 ↗
Temporal Means and Variability of Arctic Sea Ice Melt and Freeze Season Climate Indicators Using a Satellite Climate Data Record
documentation · download · from NASA CMR, data nasa gov
- Resource doi.org/10.1088/1748-9326/aafb84 ↗
Regional variability of Arctic sea ice seasonal change climate indicators from a passive microwave climate data record
documentation · download · from NASA CMR, data nasa gov
- PDF nsidc.org/sites/default/files/documents/user-guide/nsidc-0747-v002-userg… ↗
Arctic Sea Ice Seasonal Change and Melt/Freeze Climate Indicators from Satellite Data, Version 2 User Guide
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C4085455832-NSIDCV0.iso19115 ↗
download · from data nasa gov
- daacdata.apps.nsidc.org /pub/DATASETS/nsidc0747_seaice_melt_indicators_v2 ↗
Quickly download a few files using a web browser, or access data through a command-line utility such as WGET.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/arctic-sea-ice-seasonal-change-and-melt-freeze-climate… ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4085455832-NSIDCV0.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=ebb0de2e-574e-4725-928d-87dcee970… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4085455832-NSIDCV0.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Defense Meteorological Satellite Program-F11 · Defense Meteorological Satellite Program-F13 · Defense Meteorological Satellite Program-F17 · Defense Meteorological Satellite Program-F18 · Defense Meteorological Satellite Program-F8 · Ice Growth/Melt · Nimbus-7 · Scanning Multichannel Microwave Radiometer · Sea Ice Concentration · Special Sensor Microwave/Imager · Special Sensor Microwave Imager/Sounder
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Climate change science 71%
Provenance · 2 source records, 26 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4085455832-NSIDCV0 | 7 d ago | JSON v1 |
| NASA Data Portal | ebb0de2e-574e-4725-928d-87dcee970e0a | 4 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3702 | enrichment · NASA CMR | taxonomy-embedding@1.0.0 | title+keywords+description (71%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:smmr | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:ssm-i | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:ssmis | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/sea-ice/sea-ice-concentration | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/snow-ice/ice-growth-melt | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:dmsp-5d-2-f11 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:dmsp-5d-2-f13 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:dmsp-5d-2-f8 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:dmsp-5d-3-f17 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:dmsp-5d-3-f18 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:nimbus-7 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |