Archive · collection
Submerged Aquatic Vegetation (SAV) for the Chesapeake Bay from Virginia Institute of Marine Science
Listed in NASA Earthdata CMR
Chesapeake Bay SAV data were mapped from black and white aerial photography, primarily at a scale of 1:24,000.
Description
Each area of SAV was traced onto 1:24,000 USGS quadrangles and classified into one of four density classes by the percentage of cover as determined from the aerial photography. The SAV beds were then digitized into an Arc/Info GIS coverage using documented quality control procedures.
The annual SAV aerial photographic monitoring program provides a comprehensive and accurate measure of change in SAV relative abundance that has been used to link improving water quality to increases in bay living resources. [This information was adapted from VIMS SAV metadata and the VIMS SAV web pages.]
Links
Get the data
- SAV Distribution Data Archive web page vims.edu ↗
download · from NASA CMR
Documentation and papers
- VIMS Submerged Aquatic Vegetation (SAV) web page vims.edu/bio/sav/index.html ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214606189-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214606189-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- AIRCRAFT · Benthic · Estuaries · Estuary · Marine Ecosystems · Submerged Aquatic Vegetation
- Inferred from text
- Oceanography 71%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214606189-SCIOPS | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3708 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/marine-ecosystems | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/marine-ecosystems/benthic | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/marine-ecosystems/estuary | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/vegetation/vegetation-cover/submerged-aquatic-vegetation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/coastal-processes/estuaries | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:aircraft | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | 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 |