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Photosynthetically Active Radiation (PAR) Average Annual Maximum Anomaly, 2002-2013 - Hawaii

Identification Information

Dataset Identifier:

hi_otp_all_par_anom_max

Citation:

Citation Information:

Title: Photosynthetically Active Radiation (PAR) Average Annual Maximum Anomaly, 2002-2013 - Hawaii
Originator: Kim Selkoe
Originator: Ocean Tipping Points (OTP)
Publication Date: March 14, 2017

Description:

Abstract:

Solar irradiance is one of the most important factors influencing coral reefs. As the majority of their nutrients are obtained from symbiotic photosynthesizing organisms, reef-building corals need irradiance as a fundamental source of energy. Seasonally-low irradiance at high latitudes may be linked to reduced growth rates in corals and may limit reef calcification to shallower depths than that observed at lower latitudes. However, high levels of irradiance can lead to light-induced damage, production of free radicals, and in combination with increased temperatures, can exacerbate coral bleaching. This layer represents the annual average of the maximum anomaly of irradiance (mol/m2/day) from 2002 -2013. Irradiance is here represented by PAR (photosynthetically active radiation), which is the spectrum of light that is important for photosynthesis. Monthly and 8-day 4-km (0.0417-degree) spatial resolution data were obtained from the MODIS (Moderate-resolution Imaging Spectroradiometer) Aqua satellite instrument from the NASA OceanColor website (http://oceancolor.gsfc.nasa.gov).

The PAR average annual maximum anomaly was calculated by taking the average of the annual maximum PAR values in exceedance of the maximum monthly climatological PAR from 2002-2013 for each pixel. A quality control mask was applied to remove spurious data associated with shallow water, following Gove et al., 2013. Monthly climatologies were calculated from monthly time series using only full years over the Ocean Tipping Points (OTP) project time frame of interest (2002-2013). Time series of anomalies were calculated by quantifying the number and magnitude of events from the 8-day time series that exceed the maximum climatological monthly mean. 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.

Purpose: This layer was developed as part of a geospatial database of key anthropogenic pressures to coastal waters of the Main Hawaiian Islands for the Ocean Tipping Points (OTP) project (http://oceantippingpoints.org). Ocean tipping points occur when shifts in human use or environmental conditions result in large, and sometimes abrupt, impacts to marine ecosystems. The ability to predict and understand ocean tipping points can enhance ecosystem management, including critical coral reef management and policies to protect ecosystem services produced by coral reefs. The goal of the Ocean Tipping Points Hawaii case study was to gather, process, and map spatial information on environmental and human-based drivers of coral reef ecosystem conditions.

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -160.41246
East Bounding Coordinate: -154.56326
North Bounding Coordinate: 22.42373
South Bounding Coordinate: 18.75503

Keywords:

Theme:

Theme Keyword Thesaurus: GCMD Science Keywords
Keyword: Earth Science Biosphere Aquatic Ecosystems Reef Habitat
Keyword: Earth Science Biosphere Ecosystems Marine Ecosystems Reef Coral Reef
Keyword: Earth Science Biosphere Vegetation Photosynthetically Active Radiation
Keyword: Earth Science Human Dimensions Human Settlements Coastal Areas
Keyword: Earth Science Oceans Coastal Processes Coral Reefs
Keyword: Earth Science Oceans Ocean Optics Photosynthetically Active Radiation

Theme:

Theme Keyword Thesaurus: CF Standard Name Table v39
Keyword: surface_downwelling_photosynthetic_photon_flux_in_air

Place:

Place Keyword Thesaurus: GCMD Location Keywords
Place Keyword: Continent North America United States Of America Hawaii
Place Keyword: Ocean Pacific Ocean Central Pacific Ocean Hawaiian Islands

Access Constraints:

None

Use Constraints:

Use Limitation: Please contact the Ocean Tipping Points (OTP) project in advance of applying these data to project work so that the principal investigator, Carrie Kappel (kappel@nceas.ucsb.edu), can track and communicate data uses and ensure no duplicate efforts are underway. 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.

Point of Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: Ocean Tipping Points (OTP)
Contact Person: Carrie Kappel

Contact Electronic Mail Address: kappel@nceas.ucsb.edu

Browse Graphic:


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Browse Graphic File Name: http://www.pacioos.hawaii.edu/metadata/browse/hi_otp_all_par_anom_max.png

Browse Graphic File Description:

Sample image.

Browse Graphic File Type: PNG

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Distribution Information

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: Pacific Islands Ocean Observing System (PacIOOS)

Contact Electronic Mail Address: info@pacioos.org

Standard Order Process:

Digital Form:

Digital Transfer Information:

Format Name: Open Geospatial Consortium Web Coverage Service (WCS)

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/hi_otp_all_par_anom_max/ows?service=WCS&version=1.0.0&request=GetCapabilities

Digital Form:

Digital Transfer Information:

Format Name: Open Geospatial Consortium Web Map Service (WMS)

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/hi_otp_all_par_anom_max/ows?service=WMS&version=1.3.0&request=GetCapabilities

Digital Form:

Digital Transfer Information:

Format Name: Open Geospatial Consortium Web Map Service - Cached (WMS-C)

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/gwc/service/wms?service=WMS&version=1.1.1&request=GetCapabilities&tiled=true

Digital Form:

Digital Transfer Information:

Format Name: GeoServer

Format Information Content:

This URL provides access to this dataset via GeoServer, including multiple output formats and an OpenLayers viewer.

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: http://geo.pacioos.hawaii.edu/geoserver/

Digital Form:

Digital Transfer Information:

Format Name: GeoExplorer

Format Information Content:

This URL provides a viewer for this dataset.

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: http://geo.pacioos.hawaii.edu/geoexplorer/

Digital Form:

Digital Transfer Information:

Format Name: FGDC metadata

Format Information Content:

This URL provides additional metadata for this dataset from the source provider.

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: http://geo.pacioos.hawaii.edu/geoserver/www/metadata/hi_otp_all_par_anom_max.xml

Digital Form:

Digital Transfer Information:

Format Name: PacIOOS: Ocean Tipping Points (OTP) Data Viewer

Format Information Content:

This URL provides a viewer for this dataset.

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: http://pacioos.org/projects/oceantippingpoints/#data

Fees: None specified

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Metadata Reference Information

Metadata Date:

March 14, 2017

Metadata Contact:

Contact Information:

Contact Person Primary:

Contact Organization: Ocean Tipping Points (OTP)

Contact Electronic Mail Address: kappel@nceas.ucsb.edu

Metadata Standard Name:

Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata

Metadata Standard Version:

FGDC-STD-012-2002

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Metadata Views

FGDC Text-Only

Federal Geographic Data Committee (FGDC) in plain text

FGDC XML

Federal Geographic Data Committee (FGDC) in Extensible Markup Language (XML)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata