Coral Data & Publications
Search Results
Record 19 of 39 for Navassa Island region search.
|
| Title: |
NOAA Coral Reef Watch Experimental Daily Near-Real-Time Light Stress Damage Product for the Caribbean Region |
| Abstract: |
The NOAA Coral Reef Watch (CRW) Experimental Daily Near-Real-Time Light Stress Damage (LSD) product is part of CRW's near-real-time Decision Support System (DSS) for coral reef management that also includes CRW's operational twice-weekly global 50-km satellite coral bleaching thermal stress monitoring product suite. This DSS was initially implemented in 2000 and continues to provide updated monitoring information to the U.S. and international coral reef communities. The first version of the LSD product was launched on October 1, 2009 for the Caribbean region only. It was a pilot project based on preliminary research results on combined stress conducive to coral bleaching from both anomalously high light intensity (insolation) and temperature experienced by coral. Although web-based, the first version of the LSD product was password-protected and available only to project collaborators, for the period April 2009 to the present. The second, public version of the LSD product was released October 31, 2012 on the CRW web site. This metadata file provides information on the second version of the LSD product for both the most recent near-real-time updates and the archived product dating back to October 1, 2012. The experimental LSD product provides a measure of the combined light and thermal stress on the coral photo-system. As currently designed, the LSD product will provide a relative measure of these effects via an index. This index has values that are usually in the range of 0 to 5, but can be greater than 5 if accumulated thermal stress is excessive. Generally speaking, a value of 0 indicates that there is no accumulation of damaging stress, a value of around 1 indicates that stress has accumulated to significant levels and bleaching is expected to begin, and values of 2 or more indicate escalating severity of stress and associated bleaching. Severe bleaching and significant mortality are expected at or beyond an LSD value of 5. The LSD product is updated daily and presently has a resolution of 0.1 degrees. This will be increased to 0.05 degree resolution in the future. Temperature data used in deriving the LSD are the daily NOAA/NESDIS 0.1 degree resolution Geostationary Operational Environmental Satellites (GOES)-Polar Operational Environmental Satellite (POES) blended SST product. The LSD is also produced using photosynthetically active radiation (PAR) derived from the NESDIS/STAR GOES Surface and Insolation product suite. Hourly PAR data from this product suite are summed to derive a daily total PAR. The daily PAR totals are then used to derive an anomaly product that measures acclimation of the corals to changing light levels from day to day. At this time, the LSD product is produced only for the Caribbean region on CRW's web site. Additional information on the SST used for this product is provided in each SST HDF data file, accessible at http://coralreefwatch.noaa.gov/satellite/hdf/index.html. The LSD product, its detailed description, and available data formats and delivery mechanisms are accessible at http://coralreefwatch.noaa.gov/satellite/lsd/index.html. |
| Publisher Name: |
NOAA Coral Reef Watch program |
| Tracking ID: |
6568 |
| Metadata: |
http://www.coris.noaa.gov/metadata/records/html/crw_lsd_11km_20121120.html |
| Metadata Date: |
12/28/2012 |
| Preview: |
http://coralreefwatch.noaa.gov/satellite/lsd/images/current/lsd_caribbean.png |
| Data (Online Linkage): |
http://coralreefwatch.noaa.gov/satellite/lsd/index.html |
| Data (Network Resource): |
http://coralreefwatch.noaa.gov/satellite/lsd/index.html
http://coralreefwatch.noaa.gov/satellite/lsd/index.html |
| Originator: |
NOAA Coral Reef Watch program |
| Entry Type: |
Metadata Record. |
|
