Identification_Information: Citation: Citation_Information: Originator: NOAA Coral Reef Watch Program NOAA National Environmental Satellite Data and Information Service Publication_Date: 20011231 Title: Caribbean Sea Degree Heating Week Charts Archived 2001 NOAA Twice-Weekly Satellite 50km Near Real-Time Coral Bleaching Edition: One Geospatial_Data_Presentation_Form: remote sensing image Publication_Information: Publication_Place: Suitland, Maryland, USA Publisher: NOAA Coral Reef Watch Program Online_Linkage: http://www.osdpd.noaa.gov/PSB/EPS/SST/dhw_retro_2001.html Description: Abstract: These archived coral bleaching Degree Heating Week (DHW) charts of the Caribbean Sea are graphic displays of the satellite coral bleaching DHWs of the Caribbean Sea at 50km resolution produced twice-weekly in near real-time fashion in 2001. DHW is the accumulation of Coral Bleaching HotSpots over a period of 12 consecutive weeks. The coral bleaching HotSpot is a special type of sea surface temperature (SST) anomaly and shows the difference of SST compared to a static coral bleaching threshold SST climatology. Only the positive anomalies (potential thermal stress to induce coral bleaching) are highlighted in HotSpots. The DHW value at any particular location at any particular time is the summation of the product of HotSpot values which are at least 1'C above the bleaching threshold SST and their durations in weeks (in minimum 0.5 week for our twice-weekly DHW) over the most recent 12-week period. One DHW is equivalent to 1 week of SST at 1'C above the threshold or 0.5 week of SST at 2'C above the threshold, etc. Satellite data from the Advanced Very High Resolution Radiometer (AVHRR) on NOAA's Polar Orbiting Environmental Satellite (POES) are used to generate AVHRR-SST. The most recent AVHRR data obtained from the POES that is presently in operational mode are processed to generate the near real-time SST data used to create the coral bleaching HotSpots and DHWs. The SST data, coral bleaching HotSpots, DHWs and DHW chart are produced twice-weekly on every Tuesday (using AVHRR data from the previous Saturday through Monday) and on every Saturday (using AVHRR data from the previous Tuesday through Friday). Purpose: The NOAA twice-weekly global 50km Degree Heating Weeks were primarily developed for NOAA's Coral Reef Watch (CRW) Program from satellite data for both monitoring and assessment of coral bleaching. CRW's other satellite monitoring and assessment products include the SST, SST anomaly, coral bleaching HotSpots, Tropical Coral Bleaching Indices, and SST time series. Supplemental_Information: The archived 2001 charts are accessable from the links marked with corresponding dates at URL http://www.osdpd.noaa.gov/PSB/EPS/SST/dhw_retro_2001.html The charts of the HotSpots used to derive the DHWs may be available at http://www.osdpd.noaa.gov/PSB/EPS/SST/climohot.html The charts of the SST data used to derive the HotSpots may be available at http://coralreefwatch.noaa.gov/satellite/archive/archive_chart_sst50km_2001.html The most recent near real-time DHWs may be avaliable at http://www.osdpd.noaa.gov/PSB/EPS/SST/dhw_retro.html Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20010101 Ending_Date: 20011231 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: none planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -88 East_Bounding_Coordinate: -61 North_Bounding_Coordinate: 22 South_Bounding_Coordinate: 9 Keywords: Theme: Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus Theme_Keyword: Map Images > Sea Surface Temperature Theme: Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus Theme_Keyword: EARTH SCIENCE > Biosphere > Zoology > Corals > Coral Diseases > Bleaching > Degree Heating Week (DHW) Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: monitoring Theme_Keyword: assessment Theme_Keyword: remote sensing Theme_Keyword: satellite Theme_Keyword: image Theme_Keyword: map Theme_Keyword: AVHRR Theme_Keyword: SST Theme_Keyword: sea surface Theme_Keyword: sea surface temperature Theme_Keyword: temperature Theme_Keyword: HotSpot Theme_Keyword: coral bleaching HotSpot Theme_Keyword: Degree Heating Week Theme_Keyword: coral reef Theme_Keyword: coral bleaching Theme_Keyword: thermal stress Theme_Keyword: stress Theme_Keyword: NOAA Theme_Keyword: CoRIS Theme_Keyword: Coral Reef Watch Theme_Keyword: POES Theme_Keyword: Polar Orbiting Environmental Satellite Theme_Keyword: chart Theme_Keyword: oceanography Theme_Keyword: SST anomaly Theme_Keyword: temperature anomaly Theme_Keyword: sea surface temperature anomaly Theme_Keyword: HotSpot accumulation Theme_Keyword: accumulation Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: 014 Place: Place_Keyword_Thesaurus: CoRIS Place Thesaurus Place_Keyword: OCEAN BASIN > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Navassa Island > Navassa Island > Navassa Island (18N075W0001) Place_Keyword: COUNTRY/TERRITORY > United States of America > Navassa Island > Navassa Island > Navassa Island (18N075W0001) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Lesser Antilles > U. S. Virgin Islands (17N064W0000) Place_Keyword: COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > U. S. Virgin Islands > U. S. Virgin Islands (17N064W0000) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea /North Atlantic Ocean > Puerto Rico > Puerto Rico (18N066W0000) Place_Keyword: COUNTRY/TERRITORY > United States of America > Puerto Rico > Puerto Rico (18N066W0000) Place: Place_Keyword_Thesaurus: none Place_Keyword: Caribbean Sea Temporal: Temporal_Keyword_Thesaurus: none Temporal_Keyword: year 2001 Temporal_Keyword: 2001 Access_Constraints: none Use_Constraints: Not intended for legal use. Data may contain inaccuracies due to clouded or mixed pixels. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Alan E. Strong, NOAA Coral Reef Watch Program Manager Contact_Organization: NOAA Coral Reef Watch Program Contact_Address: Address_Type: mailing and physical address Address: NOAA E/RA3, Room 601, 5200 Auth Road City: Camp Springs State_or_Province: Maryland Postal_Code: 20746 Country: USA Contact_Voice_Telephone: 301-763-8102 ext 170 Contact_Facsimile_Telephone: 301-763-8572 Contact_Electronic_Mail_Address: Alan.E.Strong@noaa.gov Browse_Graphic: Browse_Graphic_File_Name: http://www.osdpd.noaa.gov/PSB/EPS/SST/dhw_retro_2001.html Browse_Graphic_File_Description: This is the index Web page for the archived 2001 NOAA Twice-Weekly Satellite 50km Near Real-Time Coral Bleaching Degree Heating Week Charts (Caribbean Ocean) Browse_Graphic_File_Type: HTML, Web page Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The accuracy of the Degree Heating Weeks depends on the accuracy of Coral Bleaching HotSpots. No estimation on the HotSpots has been done and only preliminary estimates exist for using DHWs to assess coral bleaching and mortality although they have demonstrated remarkable preliminary success in denoting most bleaching events. Polar Orbiting Environmental Satellite (POES) AVHRR-SST values are accurate to within 0.5 degrees C and adjusted by in-situ information (buoys) to best-approximate SST at a depth of 1 meter. However, to provide a complete global coverage, estimation of SSTs at all pixels that are cloud covered may occasionally reduce the accuracy of SST at these pixels. Logical_Consistency_Report: none Completeness_Report: Selected references are as follows. 1) Strong, A. E., C. S. Barrientos, C. Duda, and J. Sapper, 1997: Improved Satellite Technique for Monitoring Coral Reef Bleaching. Proc 8th International Coral Reef Symposium 2:1495-1498. Available also online at URL http://www.osdpd.noaa.gov/PSB/EPS/SST/icrs_dud.html 2) Toscano, M. A., A. E. Strong, I. C. Guch, 1999: New Analyses for Ocean HotSpots and Coral Reef Bleaching. Reef Encounter, 26, 31. 3) "New AVHRR Product -- Coral Reef Hotspots" by A. E. Strong and C. Duda, available at the URL http://www.osdpd.noaa.gov/PSB/EPS/SST/ashe_ab.html 4) The information for the AVHRR-derived sea surface temperture is described in the following user's guide. Goodrum G., K. B. Kidwell, and W. Winston, 2000, NOAA KLM USER'S GUIDE. U.S. Department of Commerce, National Oceanic and Atmospheric Administration National Environmental Satellite, Data, and Information Service, National Climatic Data Center, Climate Services Division, Satellite Services Branch, FOB3, Room G227, E/CC33, 5200 Auth Road, Suitland, MD 20746-4304, USA. This manual is available online at http://www2.ncdc.noaa.gov/docs/klm/cover.htm. To request additional information contact: Telephone: (828) 271-4850, Telefax: (828) 271-4876, Email: satorder@ncdc.noaa.gov. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Users are referred to the following guide on AVHRR-derived sea surface temperature. Goodrum G., K. B. Kidwell, and W. Winston, 2000, NOAA KLM USER'S GUIDE. U.S. Department of Commerce, National Oceanic and Atmospheric Administration National Environmental Satellite, Data, and Information Service, National Climatic Data Center, Climate Services Division, Satellite Services Branch, FOB3, Room G227, E/CC33, 5200 Auth Road, Suitland, MD 20746-4304, USA. This manual is available on line at http://www2.ncdc.noaa.gov/docs/klm/cover.htm. To request additional information contact: Telephone: (828) 271-4850, Telefax: (828) 271-4876, Email: satorder@ncdc.noaa.gov. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: none Lineage: Source_Information: Source_Citation: Citation_Information: Originator: NOAA Coral Reef Watch Program NOAA/NESDIS Publication_Date: 20000101 Title: NOAA Twice-Weekly Satellite 50km Near Real-Time Coral Bleaching Degree Heating Weeks (Global) Edition: one Geospatial_Data_Presentation_Form: data file Publication_Information: Publication_Place: Suitland, Maryland, USA Publisher: NOAA Coral Reef Watch Program Type_of_Source_Media: data file Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20010101 Ending_Date: 20011231 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NOAA Satellite Near Real-Time Coral Bleaching Degree Heating Weeks (Global) Source_Contribution: The charts are graphic displays of these source data. Source_Information: Source_Citation: Citation_Information: Originator: NOAA Coral Reef Watch Program NOAA/NESDIS Publication_Date: 19970101 Title: NOAA Twice-Weekly Satellite 50km Near Real-Time Coral Bleaching HotSpots (Global) Edition: one Geospatial_Data_Presentation_Form: data file Publication_Information: Publication_Place: Suitland, Maryland, USA Publisher: NOAA Coral Reef Watch Program Type_of_Source_Media: data file Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20010101 Ending_Date: 20011231 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NOAA Satellite Near Real-Time Coral Bleaching HotSpots (Global) Source_Contribution: The products were derived from these source data. Source_Information: Source_Citation: Citation_Information: Originator: NOAA Coral Reef Watch Program NOAA/NESDIS Publication_Date: 19970101 Title: NOAA Twice-Weekly Satellite 50km Near Real-Time Nighttime AVHRR Sea Surface Temperatures (Global) Edition: one Geospatial_Data_Presentation_Form: data file Publication_Information: Publication_Place: Suitland, Maryland, USA Publisher: NOAA Coral Reef Watch Program Type_of_Source_Media: data file Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20010101 Ending_Date: 20011231 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NOAA Satellite Near Real-Time Nighttime AVHRR SSTs (Global) Source_Contribution: The products were derived from these source data. Process_Step: Process_Description: Degree Heating Weeks are calculated as the accumulation of coral bleaching HotSpots over the most recent 12 weeks. At each pixel, coral bleaching threshold sea surface temperature climatologic value is subtracted from AVHRR sea surface temperture value to produce coral bleaching HotSpot value. The Degree Heating Weeks are then visualized in the DHW chart. Some references are listed below. 1) Strong, A. E., C. S. Barrientos, C. Duda, and J. Sapper, 1997: Improved Satellite Technique for Monitoring Coral Reef Bleaching. Proc 8th International Coral Reef Symposium 2:1495-1498. Available also online at URL http://www.osdpd.noaa.gov/PSB/EPS/SST/icrs_dud.html 2) Toscano, M. A., A. E. Strong, I. C. Guch, 1999: New Analyses for Ocean HotSpots and Coral Reef Bleaching. Reef Encounter, 26, 31. 3) "New AVHRR Product -- Coral Reef Hotspots" by A. E. Strong and C. Duda, available at the URL http://www.osdpd.noaa.gov/PSB/EPS/SST/ashe_ab.html Source_Used_Citation_Abbreviation: NOAA Satellite Near Real-Time Coral Bleaching Degree Heating Weeks (Global) Source_Used_Citation_Abbreviation: NOAA Satellite Near Real-Time Coral Bleaching HotSpots (Global) Source_Used_Citation_Abbreviation: NOAA Satellite Near Real-Time Nighttime AVHRR SSTs (Global) Process_Date: 20010101 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Alan E. Strong, NOAA Coral Reef Watch Program Manager Contact_Organization: NOAA Coral Reef Watch Program Contact_Address: Address_Type: mailing and physical address Address: NOAA E/RA3, Room 601, 5200 Auth Road City: Camp Springs State_or_Province: Maryland Postal_Code: 20746 Country: USA Contact_Voice_Telephone: 301-763-8102 ext 170 Contact_Facsimile_Telephone: 301-763-8572 Contact_Electronic_Mail_Address: Alan.E.Strong@noaa.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 550 Column_Count: 900 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.5 Longitude_Resolution: 0.5 Geographic_Coordinate_Units: Decimal Degrees Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Degree Heating Weeks grid cell Entity_Type_Definition: any of the one-byte data elements in the Degree Heating Weeks files Entity_Type_Definition_Source: self-evident Attribute: Attribute_Label: Degree Heating Weeks grid cell value Attribute_Definition: Degree Heating Weeks in the location indicated by the pixel. In the original DHW data files, the unit is in (degrees Celsius)(week) and DHW values are converted into digital numbers between 0 through 255 to be presented in gif image format. Attribute_Definition_Source: 1) Strong, A. E., C. S. Barrientos, C. Duda, and J. Sapper, 1997: Improved Satellite Technique for Monitoring Coral Reef Bleaching. Proc 8th International Coral Reef Symposium 2:1495-1498. Available also online at URL http://www.osdpd.noaa.gov/PSB/EPS/SST/icrs_dud.html 2) Toscano, M. A., A. E. Strong, I. C. Guch, 1999: New Analyses for Ocean HotSpots and Coral Reef Bleaching. Reef Encounter, 26, 31. 3) "New AVHRR Product -- Coral Reef Hotspots" by A. E. Strong and C. Duda, available at the URL http://www.osdpd.noaa.gov/PSB/EPS/SST/ashe_ab.html 4) The information for the AVHRR-derived sea surface temperture is described in the following user's guide. Goodrum G., K. B. Kidwell, and W. Winston, 2000, NOAA KLM USER'S GUIDE. U.S. Department of Commerce, National Oceanic and Atmospheric Administration National Environmental Satellite, Data, and Information Service, National Climatic Data Center, Climate Services Division, Satellite Services Branch, FOB3, Room G227, E/CC33, 5200 Auth Road, Suitland, MD 20746-4304, USA. This manual is available on line at http://www2.ncdc.noaa.gov/docs/klm/cover.htm. To request additional information contact: Telephone: (828) 271-4850, Telefax: (828) 271-4876, Email: satorder@ncdc.noaa.gov. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 255 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Alan E. Strong, NOAA Coral Reef Watch Program Manager Contact_Organization: NOAA Coral Reef Watch Program Contact_Address: Address_Type: mailing and physical address Address: NOAA E/RA3, Room 601, 5200 Auth Road City: Camp Springs State_or_Province: Maryland Postal_Code: 20746 Country: USA Contact_Voice_Telephone: 301-763-8102 ext 170 Contact_Facsimile_Telephone: 301-763-8572 Contact_Electronic_Mail_Address: Alan.E.Strong@noaa.gov Distribution_Liability: NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: GIF format Format_Information_Content: Degree Heating Weeks Transfer_Size: 0.060 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://www.osdpd.noaa.gov/PSB/EPS/SST/dhw_retro_2001.html Offline_Option: Offline_Media: CD-ROM Recording_Format: none Compatibility_Information: The GIF format is recognized by most graphics applications. Fees: none Ordering_Instructions: The product in GIF format may be downloaded from the Web site or obtained from the distributor. Metadata_Reference_Information: Metadata_Date: 20081124 Metadata_Review_Date: 20081121 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Alan E. Strong, NOAA Coral Reef Watch Program Manager Contact_Organization: NOAA Coral Reef Watch Program Contact_Address: Address_Type: mailing and physical address Address: NOAA E/RA3, Room 601, 5200 Auth Road City: Camp Springs State_or_Province: Maryland Postal_Code: 20746 Country: USA Contact_Voice_Telephone: 301-763-8102 ext 170 Contact_Facsimile_Telephone: 301-763-8572 Contact_Electronic_Mail_Address: Alan.E.Strong@noaa.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 CoRIS: CoRIS_ID: 20081121115108 CoRIS_Children: None CoRIS_Beginning_Date: 20010101 CoRIS_Ending_Date: 20011231 CoRIS_Metadata_Link: http://www.coris.noaa.gov/metadata/records/txt/avhrr_dhw_caribbean_sea_2001.txt CoRIS_Tracking_ID: 734