Table · collection · 2018
SnowEx17 CRREL Differential GNSS Survey V001
Listed in NASA Earthdata CMR
This data set contains the coordinates of SnowEx infrastructure in Grand Mesa, Colorado, collected through a differential GNSS real-time kinematic (RTK) survey.
Description
The surveys were conducted at 244 stakes along 90 transects, 31 snow pits, 24 time-lapse cameras, and 15 reference poles used to estimate snow depth from camera images. Data files report the name, location, elevation, horizontal and vertical precision, date and time, original easting and northing, and any relevant notes for each survey point.
Readings were collected using a Trimble R8 GNSS base station and two rovers: a Trimble R8 (Hiemstra) and a Trimble R10 (Gelvin). Both rovers were deployed within approximately 6km of the base station and equipped with a GNSS antennae and a base-station radio antennae from which to receive corrections.
Links
Get the data
- search.earthdata.nasa.gov /search/granules?p=C3266800211-NSIDC_CPRD ↗
Search and order NASA Earth Science data using spatial and temporal filters. Reformatting, reprojecting, and subsetting options are available for some data sets.
download · from NASA CMR
- cmr.earthdata.nasa.gov /virtual-directory/collections/C3266800211-NSIDC_CPRD ↗
Quickly download a few files using a web browser, or access data through a command-line utility such as WGET.
download · from NASA CMR
- earthaccess.readthedocs.io /en/stable ↗
A Python library to search and access NASA Earth science data with just a few lines of code
download · from NASA CMR
- nsidc.org /data/data-access-tool/SNEX17_DGNSS1/versions/1 ↗
Search data by spatial and/or temporal ranges or file name. Choose from various download options, including a Python script.
download · from NASA CMR
Where it is published
- DOI doi.org/10.5067/i0htb2uvnsef ↗
Provides access to data, documentation, tools, citation information, support, and other resources.
landing page · documentation · DOI / persistent id · from NASA CMR
Documentation and papers
- nsidc.org /sites/default/files/snex17_dgnss1-v001-userguide.pdf ↗
SnowEx17 CRREL Differential GNSS Survey, Version 1 User Guide
documentation · from NASA CMR
- SnowEx17 Differential GNSS Survey Summary nsidc.org/sites/default/files/snex17_dgnss1_techreference.pdf ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3266800211-NSIDC_CPRD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3266800211-NSIDC_CPRD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Geolocation · GPS RECEIVERS · GROUND-BASED OBSERVATIONS
- Inferred from text
- Image 65% · Physical geography and environmental geoscience 70%
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3266800211-NSIDC_CPRD | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3709 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| concepts[instrument].gcmd_instrument:gps-receivers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/sensor-characteristics/geolocation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:ground-based-observations | 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 |
| 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 |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |