Data · collection
National Coral Reef Monitoring Program: Benthic cover derived from analysis of images collected during stratified random surveys (StRS) across American Samoa
Listed in NASA Earthdata CMR
The benthic cover data in this collection result from the analysis of images produced by benthic photo-quadrat surveys.
Description
These surveys were conducted along transects at stratified random sites across American Samoa as a part of the ongoing National Coral Reef Monitoring Program (NCRMP). Benthic cover data derived from this imagery are also included in this collection.
A stratified random sampling (StRS) design was employed to survey the coral reef ecosystems throughout the region. The survey domain encompassed the majority of the mapped area of reef and hard bottom habitats in the 0-30 m depth range. The stratification scheme included island, reef zone, and depth.
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Sampling effort was allocated based on strata area and sites were randomly located within strata. Sites were surveyed using photo-quadrats along transects. The imagery were then analyzed to produce estimates of relative abundance (percent cover), frequency of occurrence, benthic community taxonomic composition, and relative generic richness.
Benthic habitat imagery were quantitatively analyzed using a web-based annotation tool called CoralNet (Beijbom et al. 2015). In general, images are analyzed to produce three functional group levels of benthic cover: Tier 1 (e.g., hard coral, soft coral, macroalgae, turf algae, etc.), Tier 2 (e.g., Hard Coral = massive, branching, foliose, encrusting, etc.; Macroalgae = upright macroalgae, encrusting macroalgae, bluegreen macroalgae, and Halimeda, etc.), and Tier 3 (e.g., Hard Coral = Astreopora sp, Favia sp, Pocillopora, etc.; Macroalgae = Caulerpa sp, Dictyosphaeria sp, Padina sp, etc.).
Links
Get the data
- DOI doi.org/10.7289/v52v2dfw ↗
Navigate directly to the URL for a descriptive web page with download links.
DOI / persistent id · download · from NASA CMR
- ncei.noaa.gov /erddap/tabledap/CRCP_Benthic_Cover_American_Samoa.html ↗
ERDDAP acts as a middleman between you and various remote data servers. ERDDAP offers an easy-to-use, consistent way to request data: via the OPeNDAP standard. Many datasets can also be accessed via E
download · from NASA CMR
- ncei.noaa.gov /metadata/granule/geoportal/?from=0&size=10&esdsl=%7B%22query%2… ↗
Search for data granules belonging to this collection (a granule is the smallest aggregation of data that can be independently described and retrieved).
download · from NASA CMR
Documentation and papers
- Institution web page coralreef.noaa.gov ↗
documentation · from NASA CMR
- InPort Record fisheries.noaa.gov/inport/item/25247 ↗
documentation · from NASA CMR
- NCEI Documents only accession accession.nodc.noaa.gov/0157633 ↗
documentation · from NASA CMR
- InPort Record fisheries.noaa.gov/inport/item/25274 ↗
documentation · from NASA CMR
- doi.org /10.1016/j.cageo.2005.11.009 ↗
Kohler, K.E. and S.M. Gill, 2006. Coral Point Count with Excel extensions (CPCe): A Visual Basic program for the determination of coral and substrate coverage using random point count methodology. Com
documentation · from NASA CMR
- doi.org /10.1371/journal.pone.0130312 ↗
O. Beijbom, P. J. Edmunds, C. Roelfsema, J. Smith, D. I. Kline, B. Neal, M. J. Dunlap, V. Moriarty, T-Y. Fan, C-J. Tan, S. Chan, T. Treibitz, A. Gamst, B. G. Mitchell, D. Kriegman. "Towards automated
documentation · from NASA CMR
- Preview graphic ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc%3ANCRMP-… ↗
preview image · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2089392919-NOAA_NCEI.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2089392919-NOAA_NCEI.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Benthic · CAMERA · Coral Reefs · NOAA Ship Hi'ialakai · Not provided · Not Provided · photograph · Visible Imagery
- Inferred from text
- Image 65%
Provenance · 1 source records, 17 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2089392919-NOAA_NCEI | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:camera | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:photograph | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/not-provided | 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/solid-earth/geomorphic-landforms-processes/coastal-landforms/coral-reefs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/visible-wavelengths/visible-imagery | 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:noaa-ship-hi-ialakai | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | 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 |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |