Imaging · collection · 2025
SnowEx23 Corner Reflector Location and Orientation V001
Listed in NASA Earthdata CMR
This data set contains an inventory of corner reflectors installed in Northern Alaska, USA, as part of the NASA SnowEx 2023 field campaign (Vuyovich et al., 2024).
Description
Corner Reflectors (CRs) are objects with known response characteristics used to calibrate or study radar returns from airborne and spaceborne imagery. The SnowEx Alaska CRs were installed in situ between October 2022 and October 2023 for the following SnowEx Alaska intensive observation periods (IOPs): October 2022, March 2023, and October 2023.
During the SnowEx Alaska field campaigns, CRs served two primary purposes. First, “engineering corner reflectors” were deployed to calibrate radar imagery and ensure precise backscatter measurements. Second, an array of “science corner reflectors” was installed to investigate the interaction between radar and forests.
Read the rest (1 more)
CRs were deployed at 32 locations across two SnowEx Alaska study areas: 9 in the Arctic tundra at the Upper Kuparuk Toolik (UKT) study area and 23 in the boreal forest at the Bonanza Creek Experimental Forest (BCEF) study area.
Links
Get the data
- nsidc.org /data/data-access-tool/SNEX23_CR/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
- search.earthdata.nasa.gov /search/granules?p=C3503072901-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/C3503072901-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
Where it is published
- DOI doi.org/10.5067/kgq0nheswlke ↗
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/documents/user-guide/snex23_cr-v001-usergu… ↗
SnowEx23 Corner Reflector Location and Orientation, Version 1 User Guide
documentation · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3503072901-NSIDC_CPRD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3503072901-NSIDC_CPRD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Calibration · Geolocation · Global Positioning System · GROUND-BASED OBSERVATIONS
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3503072901-NSIDC_CPRD | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:gps | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/platform-characteristics/calibration | 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[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 |