Table · collection · 2017
Daily Snow Depth and SWE from GPS Signal-to-Noise Ratios, Version 1
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/z02y1hgnfxch
This data set consists of daily snow depths and snow-water equivalents (SWEs) estimated from GPS signal-to-noise ratios (SNRs).
Description
Snow depth is determined by calculating the relative change of the effective multipath reflector height (i.e. the snow surface) with respect to the snow free surface. SWEs are determined using GPS snow depths and, when available, density observations from nearby SNOpack TELemetry (SNOTEL) stations.
When a nearby SNOTEL station is not available, density is estimated using GPS snow depth and climate classes, which account for variables such as location and time of the year.
Links
Get the data
- Resource doi.org/10.5067/z02y1hgnfxch ↗
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
- PDF nsidc.org/sites/default/files/nsidc-0722-v001-userguide.pdf ↗
Daily Snow Depth and SWE from GPS Signal-to-Noise Ratios, Version 1 User Guide
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C1412992229-NSIDCV0.iso19115 ↗
download · from data nasa gov
- daacdata.apps.nsidc.org /pub/DATASETS/nsidc0722_sd_swe_gps_v01 ↗
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/daily-snow-depth-and-swe-from-gps-signal-to-noise-rati… ↗
landing page · from data nasa gov
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=44b6ea15-d1a7-48b0-a27e-b3e05a61a… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1412992229-NSIDCV0.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1412992229-NSIDCV0.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Global Positioning System Satellites · GPS RECEIVERS · Snow Depth · Snow Water Equivalent
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Geophysics 72%
Provenance · 2 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1412992229-NSIDCV0 | 8 d ago | JSON v1 |
| NASA Data Portal | 44b6ea15-d1a7-48b0-a27e-b3e05a61a2ce | 5 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3706 | enrichment · NASA CMR | taxonomy-embedding@1.0.0 | title+keywords+description (72%) |
| 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:gps-receivers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/snow-ice/snow-depth | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/snow-ice/snow-water-equivalent | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:gps | 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 |