Citation:
Citation Information:
Title:
Chlorophyll-a Average Annual Frequency of Anomalies, 1998-2018 - American Samoa
Date:
Date: September 7, 2021
Date Type:
creation
(CI_DateTypeCode)
Identifier:
Code:
as_noaa_all_chlor_anom_freq
Authority:
org.pacioos
Responsible Party:
Organization Name:
NOAA Pacific Islands Fisheries Science Center (PIFSC)
Contact:
Contact Address:
Email:
pifsc.info@noaa.gov
Online Resource:
Linkage: https://www.fisheries.noaa.gov/about/pacific-islands-fisheries-science-center
Protocol:
http
Function:
information
(CI_OnLineFunctionCode)
Contact Role:
originator
(CI_RoleCode)
Responsible Party:
Organization Name:
NOAA Coral Reef Conservation Program (CRCP)
Contact:
Contact Address:
Email:
coralreef@noaa.gov
Online Resource:
Linkage: https://coralreef.noaa.gov
Protocol:
http
Function:
information
(CI_OnLineFunctionCode)
Contact Role:
originator
(CI_RoleCode)
Responsible Party:
Organization Name:
European Space Agency (ESA) Climate Change Initiative (CCI)
Contact:
Contact Address:
Email:
climate.office@esa.int
Online Resource:
Linkage: https://climate.esa.int
Protocol:
http
Function:
information
(CI_OnLineFunctionCode)
Contact Role:
resourceProvider
(CI_RoleCode)
Responsible Party:
Organization Name:
Pacific Islands Ocean Observing System (PacIOOS)
Contact:
Contact Address:
Email:
info@pacioos.org
Online Resource:
Linkage: http://pacioos.org
Protocol:
http
Function:
information
(CI_OnLineFunctionCode)
Contact Role:
publisher
(CI_RoleCode)
Other Citation Details:
Related publication: Gove JM, Williams GJ, McManus MA, Heron SF, Sandin SA, et al. (2013) Quantifying climatological ranges and anomalies for Pacific coral reef ecosystems. PLOS ONE 8(4): e61974. https://doi.org/10.1371/journal.pone.0061974.
Suggested data citation: NOAA Pacific Islands Fisheries Science Center (PIFSC), NOAA Coral Reef Conservation Program (CRCP), and European Space Agency (ESA) Climate Change Initiative (CCI). 2021. Chlorophyll-a Average Annual Frequency of Anomalies, 1998-2018 - American Samoa. Distributed by the Pacific Islands Ocean Observing System (PacIOOS). http://pacioos.org/metadata/as_noaa_all_chlor_anom_freq.html. Accessed [date].
Abstract:
Chlorophyll-a, is a widely used proxy for phytoplankton biomass and an indicator for changes in phytoplankton production. As an essential source of energy in the marine environment, the extent and availability of phytoplankton biomass can be highly influential for fisheries production and dictate trophic structure in marine ecosystems. Changes in phytoplankton biomass are predominantly effected by changes in nutrient availability, through either natural (e.g., turbulent ocean mixing) or anthropogenic (e.g., agricultural runoff) processes. This layer represents the annual average number of anomalies of chlorophyll-a (mg/m3) from 1998-2018, with values presented as fraction of a year.
Data products generated by the Ocean Colour component of the European Space Agency (ESA) Climate Change Initiative (CCI) project. These files are 8-day 4-km composites of merged sensor products: Global Area Coverage (GAC), Local Area Coverage (LAC), MEdium Resolution Imaging Spectrometer (MERIS), Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua, Ocean and Land Colour Instrument (OLCI), Sea-viewing Wide Field-of-view Sensor (SeaWiFS), and Visible Infrared Imaging Radiometer Suite (VIIRS).
The chlorophyll-a average annual frequency of anomalies was calculated by taking the average number of times that the 8-day time series exceeded the maximum monthly climatological chlorophyll-a value from 1998-2018 for each pixel. A quality control mask was applied to remove spurious data associated with shallow water, following Gove et al., 2013. Nearshore map pixels with no data were filled with values from the nearest neighboring valid offshore pixel by using a grid of points and the Near Analysis tool in ArcGIS then converting points to raster.
Data source: https://oceanwatch.pifsc.noaa.gov/erddap/griddap/esa-cci-chla-8d-v5-0.graph
Purpose:
These layers were developed as part of a geospatial database of key anthropogenic and environmental pressures to coastal waters of American Samoa.
Credit:
Please acknowledge the Ecosystem Sciences Division of the NOAA Pacific Islands Fisheries Science Center, Honolulu, Hawaii.
Point of Contact:
Responsible Party:
Organization Name:
NOAA Pacific Islands Fisheries Science Center (PIFSC)
Contact:
Contact Address:
Email:
pifsc.info@noaa.gov
Online Resource:
Linkage: https://www.fisheries.noaa.gov/about/pacific-islands-fisheries-science-center
Protocol:
http
Function:
information
(CI_OnLineFunctionCode)
Contact Role:
pointOfContact
(CI_RoleCode)
Browse Graphic:
View full image
Image File: http://www.pacioos.hawaii.edu/metadata/browse/as_noaa_all_chlor_anom_freq.png
File Description:
Sample image.
Descriptive Keywords:
Keywords:
Keyword Type:
theme
(MD_KeywordTypeCode)
Keyword: Earth Science Biosphere Aquatic Ecosystems Reef Habitat
Keyword: Earth Science Biosphere Ecosystems Marine Ecosystems Reef Coral Reef
Keyword: Earth Science Human Dimensions Human Settlements Coastal Areas
Keyword: Earth Science Oceans Coastal Processes Coral Reefs
Keyword: Earth Science Oceans Ocean Chemistry Chlorophyll
Keyword: Earth Science Oceans Ocean Optics Ocean Color
Keyword Thesaurus:
Citation Information:
Title:
GCMD Science Keywords
Keywords:
Keyword Type:
place
(MD_KeywordTypeCode)
Keyword: Ocean Pacific Ocean South Pacific Ocean Polynesia American Samoa Manua
Keyword: Ocean Pacific Ocean South Pacific Ocean Polynesia American Samoa Ofu
Keyword: Ocean Pacific Ocean South Pacific Ocean Polynesia American Samoa Olosega
Keyword: Ocean Pacific Ocean South Pacific Ocean Polynesia American Samoa Rose Atoll
Keyword: Ocean Pacific Ocean South Pacific Ocean Polynesia American Samoa Swains
Keyword: Ocean Pacific Ocean South Pacific Ocean Polynesia American Samoa Tau
Keyword: Ocean Pacific Ocean South Pacific Ocean Polynesia American Samoa Tutuila
Keyword Thesaurus:
Citation Information:
Title:
GCMD Location Keywords
Keywords:
Keyword Type:
project
(MD_KeywordTypeCode)
Keyword: PacIOOS Pacific Islands Ocean Observing System
Keyword Thesaurus:
Citation Information:
Title:
GCMD Project Keywords
Keywords:
Keyword Type:
dataCenter
(MD_KeywordTypeCode)
Keyword: PacIOOS Pacific Islands Ocean Observing System
Keyword Thesaurus:
Citation Information:
Title:
GCMD Data Center Keywords
Aggregation Information:
Aggregate Dataset Name:
Citation Information:
Title:
Pacific Islands Ocean Observing System (PacIOOS)
Association Type: largerWorkCitation (DS_AssociationTypeCode)
Initiative Type: project (DS_InitiativeTypeCode)
Resource Constraints:
Legal Constraints:
Use Limitation:
The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, University of Hawaii, PacIOOS, NOAA, State of Hawaii nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
Language:
eng
Topic Category:
biota
Topic Category:
oceans
Extent Information:
Spatial Temporal Extent:
Geographic Element:
Bounding Coordinates:
Westbound Longitude: -171.33852°
Eastbound Longitude: -167.82501°
Southbound Latitude: -14.73203°
Northbound Latitude: -10.77649°
Services:
Service Identification:
Identifier: OGC-WCS
Service Type:
Open Geospatial Consortium Web Coverage Service (WCS)
Contains Operation:
Operation Name:
GetCapabilities
Online Resource:
Linkage: http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_noaa_all_chlor_anom_freq/ows?service=WCS&version=1.0.0&request=GetCapabilities
Name:
OGC-WCS
Protocol:
OGC:WCS
Description:
Open Geospatial Consortium Web Coverage Service (WCS). Supported WCS versions include 1.0.0, 1.1.0, and 1.1.1. Supported output formats include GeoTIFF, GIF, JPEG, PNG, or TIFF.
Function:
download
(CI_OnLineFunctionCode)
Services:
Service Identification:
Identifier: OGC-WMS
Service Type:
Open Geospatial Consortium Web Map Service (WMS)
Contains Operation:
Operation Name:
GetCapabilities
Online Resource:
Linkage: http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_noaa_all_chlor_anom_freq/ows?service=WMS&version=1.3.0&request=GetCapabilities
Name:
OGC-WMS
Protocol:
OGC:WMS
Description:
Open Geospatial Consortium Web Map Service (WMS). Supported WMS versions include 1.1.1 and 1.3.0. Supported map formats include AtomPub, GeoRSS, GeoTIFF, GIF, JPEG, KML/KMZ, PDF, PNG, SVG, and TIFF. Supported info formats include GeoJSON, GeoJSON-P, GML, HTML, and plain text.
Function:
download
(CI_OnLineFunctionCode)
Back to Top
