NOAA Coral Reef Watch Experimental Daily Near-Real-Time Global 25-km Satellite Sea Surface Wind Doldrums Product

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: NOAA Coral Reef Watch program
Publication_Date: 20061001
Title:
NOAA Coral Reef Watch Experimental Daily Near-Real-Time Global 25-km Satellite Sea Surface Wind Doldrums Product
Edition: 0.3
Geospatial_Data_Presentation_Form: Remote sensing image, HDF data, KML, Google Earth, webpage
Publication_Information:
Publication_Place: Silver Spring, Maryland, USA
Publisher: NOAA Coral Reef Watch program
Online_Linkage: <http://coralreefwatch.noaa.gov/satellite/doldrums_v2/index.php>
Description:
Abstract:
The NOAA Coral Reef Watch (CRW) experimental daily satellite Sea Surface Wind Doldrums product is part of the CRW near-real-time global satellite coral bleaching monitoring product suite. The Doldrums product was initially implemented on October 1, 2006 and continues to provide updated monitoring information daily. The latest version, Version 0.3, was implemented on November 24, 2008. This metadata file provides information on the product for the most recent near-real-time updates and the archived and retrospectively-produced product dating back to June 1, 2004. The current version of the product is derived from the experimental 6-hourly near-real-time NOAA/NESDIS National Climatic Data Center (NCDC) blended satellite sea surface winds product. Wind speeds used for deriving the CRW Doldrums product were generated by blending observations from multiple satellites. The blended product offers, globally, 0.25 degree x 0.25 degree ocean surface (10-meter height) winds interpolated from observations from up to six satellites. The blending of multiple satellite observations allows for greatly enhanced temporal resolution (up to 6-hourly). The satellites that have contributed to the Doldrums product include Special Sensor Microwave/Imager (SSM/I) sensors flown on-board the United States Air Force Defense Meteorological Satellite Program (DMSP) F13, F14, and F15 satellites; the Tropical Rainfall Measuring Mission's (TRMM) Microwave Imager (TMI) on-board the TRMM satellite; SeaWinds scatterometer on-board the Quick Scatterometer (QuikSCAT) satellite; and the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) sensor on NASA's Aqua satellite. CRW uses wind speed data from these satellites to identify regions of low wind conditions, defined here as exhibiting a daily mean of less than 3 meters per second (i.e. "doldrums"). The duration of doldrums events is then tracked by accumulating the number of days over which this condition is met (doldrums days). As an experimental product, CRW's Sea Surface Wind Doldrums product undergoes continual development and refinement to determine the best configuration for the algorithm and to test its utility against past bleaching events. While basin-scale coral bleaching occurs as a result of large-scale climate phenomena, local weather patterns greatly influence bleaching variability among sites within a basin. Three related factors that influence local bleaching patterns are temperature, light, and mixing. One parameter that exerts a common influence over all of these is wind. As wind speed falls, there is reduced vertical mixing, evaporative cooling, and sensible heat transfer, increasing the likelihood of adverse temperature excursions during summertime maximum water temperatures (Mumby et al. 2001, Dunne and Brown 2001, Skirving and Guinotte 2001, Obura 2005). In addition, pronounced stratification that can result under low-wind conditions can enhance photo-degradation of colored dissolved organic material, thereby reducing shading over corals and enhancing the likelihood of bleaching (Manzello et al., 2006). Related details, as well as other important information, are provided in each HDF data file. The Sea Surface Wind Doldrums product is available in various formats, including static image, HDF data, and Google Earth. The product, its detailed description, and available data formats and delivery mechanisms are accessible at: <http://coralreefwatch.noaa.gov/satellite/doldrums_v2/index.php>.
Purpose:
The NOAA Coral Reef Watch program seeks to fully utilize space-based observations combined with in-situ data to continually monitor for early indications of thermally-induced coral reef bleaching worldwide. A suite of monitoring and predicting products, including this satellite Sea Surface Wind Doldrums product, has been developed by CRW as a decision support system to provide critical and timely coral reef environment information to the U.S. and international coral reef communities.
Supplemental_Information:
The entire suite of products mentioned in this metadata file is accessible at: <http://coralreefwatch.noaa.gov/satellite>
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20040601
Ending_Date: Present
Currentness_Reference: Ground Condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: Daily
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -180
East_Bounding_Coordinate: 180
North_Bounding_Coordinate: 89.875
South_Bounding_Coordinate: -89.875
Keywords:
Theme:
Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword:
EARTH SCIENCE > Biosphere > Zoology > Corals > Coral Diseases > Bleaching
Theme:
Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
Theme_Keyword: Map Images > Sea Surface Wind
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: NOAA
Theme_Keyword: CoRIS
Theme_Keyword: Coral Reef Watch
Theme_Keyword: chart
Theme_Keyword: oceanography
Theme_Keyword: wind
Theme_Keyword: Doldrums
Theme_Keyword: accumulation
Theme_Keyword: monitoring
Theme_Keyword: assessment
Theme_Keyword: remote sensing
Theme_Keyword: satellite
Theme_Keyword: image
Theme_Keyword: map
Theme_Keyword: sea surface
Theme_Keyword: sea surface wind
Theme_Keyword: thermal stress
Theme_Keyword: stress
Theme_Keyword: decision support system
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: 014
Place:
Place_Keyword_Thesaurus: CoRIS Region
Place_Keyword: MHI
Place_Keyword: NWHI
Place_Keyword: Guam
Place_Keyword: CNMI
Place_Keyword: AmSam
Place_Keyword: PRIA
Place_Keyword: Florida
Place_Keyword: FGB
Place_Keyword: PR
Place_Keyword: USVI
Place_Keyword: Navassa
Place_Keyword: Palau
Place_Keyword: FSM
Place_Keyword: RMI
Place:
Place_Keyword_Thesaurus: CoRIS Place Thesaurus
Place_Keyword: OCEAN BASIN > Pacific Ocean
Place_Keyword: OCEAN BASIN > Atlantic Ocean
Place_Keyword: OCEAN BASIN > Indian Ocean
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 > 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 /North Atlantic Ocean > Puerto Rico > Puerto Rico (18N066W0000)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Puerto Rico > Puerto Rico (18N066W0000)
Place_Keyword:
OCEAN BASIN > Atlantic Ocean > Gulf of Mexico > Flower Garden Banks > West Flower Garden Banks (27N093W0002)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Texas > West Flower Garden Banks (27N093W0002)
Place_Keyword:
OCEAN BASIN > Atlantic Ocean > Gulf of Mexico > Flower Garden Banks > East Flower Garden Banks (27N093W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Texas > East Flower Garden Banks (27N093W0001)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands (28N178W0000)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Northwestern Hawaiian Islands (28N178W0000)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii > Hawaii (21N160W0000)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Hawaii (21N160W0000)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Johnston Atoll > Johnston Atoll (16N169W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Johnston Atoll (16N169W0001)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Jarvis Island (00S160W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Jarvis Island (00S160W0001)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Kingman Reef (06N162W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Kingman Reef (06N162W0001)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Palmyra Atoll (05N162W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Palmyra Atoll (05N162W0001)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Howland Island > Howland Island (00S176W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Howland Island (00S176W0001)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Baker Island > Baker Island (00N176W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Baker Island (00N176W0001)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Guam (13N144E0000)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Carolines > Palau ( Belau ) (07N134E0000)
Place_Keyword:
COUNTRY/TERRITORY > Palau > Palau > Palau ( Belau ) (07N134E0000)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Carolines > Micronesia (07N150E0000)
Place_Keyword: COUNTRY/TERRITORY > Micronesia > Micronesia (07N150E0000)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Marshall Islands > Marshall Islands (09N168E0000)
Place_Keyword:
COUNTRY/TERRITORY > Marshall Islands > Marshall Islands > Marshall Islands (09N168E0000)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Mariana Archipelago > Northern Mariana Islands ( CNMI ) (18N146E0000)
Place_Keyword:
COUNTRY/TERRITORY > Northern Mariana Islands > Northern Mariana Islands > Northern Mariana Islands ( CNMI ) (18N146E0000)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Wake Atoll > Wake Atoll (19N167E0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Wake Atoll (19N167E0001)
Place_Keyword: COUNTRY/TERRITORY > United States of America > Florida
Place_Keyword: OCEAN BASIN > Atlantic Ocean > North Atlantic Ocean > Florida
Place_Keyword: OCEAN BASIN > Atlantic Ocean > Gulf of Mexico > Florida
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: globe
Place_Keyword: Western hemisphere
Place_Keyword: Eastern hemisphere
Place_Keyword: Atlantic Ocean
Place_Keyword: Pacific Ocean
Place_Keyword: Indian Ocean
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: real time
Temporal_Keyword: near real time
Temporal_Keyword: present
Temporal_Keyword: current
Temporal_Keyword: past
Access_Constraints: none
Use_Constraints: Not intended for legal use. Data may contain low inaccuracies.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coral Reef Watch program
Contact_Person: NOAA Coral Reef Watch Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA, E/RA31, SSMC1, Room 5308, 1335 East-West Highway
City: Silver Spring
State_or_Province: Maryland
Postal_Code: 20910-3226
Country: USA
Contact_Voice_Telephone: 301-713-2857 ext 109
Contact_Facsimile_Telephone: 301-713-3136
Contact_Electronic_Mail_Address: coralreefwatch@noaa.gov
Browse_Graphic:
Browse_Graphic_File_Name:
<http://coralreefwatch.noaa.gov/satellite/doldrums_v2/data/current/doldrums_map_xlarge.gif>
Browse_Graphic_File_Description:
This is the most recent image of the NOAA CRW experimental near-real-time daily global 25-km satellite Sea Surface Wind Doldrums product.
Browse_Graphic_File_Type: GIF

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The accuracy of the Doldrums product depends on the accuracy of the source data from the NOAA/NESDIS/NCDC blended satellite sea surface winds product. The description of the NCDC blended winds product can be accessed at <http://www.ncdc.noaa.gov/oa/rsad/air-sea/seawinds.html>.
Logical_Consistency_Report: none
Completeness_Report:
There are time-dependent spatial data gaps in this data set; however, there is no missing daily product. This daily Doldrums product is produced using six-hourly wind data from NOAA/NESDIS/NCDC. Data gaps in the daily product at low- and mid-latitudes occur because the satellites being used are not able to provide complete global coverage on a daily basis. Gaps at high-latitudes are caused by sea ice cover preventing the satellite measurement. As an experimental product, the Doldrums product undergoes continual development and refinement to determine the algorithm's best configuration and to test its utility against past bleaching events. The product algorithm has not been changed since its inauguration. The current source wind product from NOAA/NESDIS/NCDC is an experimental product. Any change taking place in the source wind product will alter the quality of the Doldrums product. Source wind data used for making this Doldrums product were changed once after the Doldrums product was first released. The entire Doldrums product was reprocessed, using the new wind data set, and the first version of the Doldrums product was discarded because the new source wind data were at much higher temporal resolution. The description on the Coral Reef Watch web site is for the current version of the Doldrums product. No history of change has been posted on the web yet, as the Doldrums product is still in an early experimental stage.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Users are referred to the following blended satellite sea surface winds product web site for information: <http://www.ncdc.noaa.gov/oa/rsad/air-sea/seawinds.html>
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: none
Lineage:
Process_Step:
Process_Description:
CRW's 25-km Sea Surface Wind Doldrums product was produced experimentally by CRW based on the NOAA/NESDIS/NCDC 6-hourly blended satellite sea surface winds product, which was developed from sea surface wind observations from up to six satellites. The source sea surface wind data are accessible at: <http://www.ncdc.noaa.gov/oa/rsad/air-sea/seawinds.html>.
Process_Date: Not complete

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 719
Column_Count: 1440

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.25
Longitude_Resolution: 0.25
Geographic_Coordinate_Units: Decimal degrees

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Grid Intersection
Entity_Type_Definition:
There are 1440 grid intersections in each row (at a pre-defined latitude) and 719 grid intersections in each column (at a pre-defined longitude). Each grid is 0.25 degree latitude by 0.25 degree longitude in size, centered at latitudes of from 89.75N northward to 89.75N and at longitudes of from 0.0 eastward to 359.75.
Entity_Type_Definition_Source: <http://coralreefwatch.noaa.gov/satellite/doldrums_v2/index.php>
Attribute:
Attribute_Label: HDF data files
Attribute_Definition: These are CRW satellite Sea Surface Wind Doldrums data.
Attribute_Definition_Source: <http://coralreefwatch.noaa.gov/satellite/doldrums_v2/index.php>
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 31
Attribute_Units_of_Measure: Days
Attribute:
Attribute_Label: SST image files in GIF format
Attribute_Definition:
These are the image display of CRW satellite Sea Surface Wind Doldrums data.
Attribute_Definition_Source: <http://coralreefwatch.noaa.gov/satellite/doldrums_v2/index.php>
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Attribute_Units_of_Measure: Index color values

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coral Reef Watch program
Contact_Person: NOAA Coral Reef Watch Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA, E/RA31, SSMC1, Room 5308, 1335 East-West Highway
City: Silver Spring
State_or_Province: Maryland
Postal_Code: 20910-3226
Country: USA
Contact_Voice_Telephone: 301-713-2857 ext 109
Contact_Facsimile_Telephone: 301-713-3136
Contact_Electronic_Mail_Address: coralreefwatch@noaa.gov
Resource_Description: Downloadable Data
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: HTML
Format_Information_Content: Doldrums webpage
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://coralreefwatch.noaa.gov/satellite/doldrums_v2/index.php>
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: none
Compatibility_Information: The data formats provided are commonly used data formats.
Digital_Form:
Digital_Transfer_Information:
Format_Name: HDF
Format_Information_Content: Doldrums data
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://coralreefwatch.noaa.gov/satellite/doldrums_v2/index.php>
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: none
Compatibility_Information: The data formats provided are commonly used data formats.
Digital_Form:
Digital_Transfer_Information:
Format_Name: GIF
Format_Information_Content: Doldrums images
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://coralreefwatch.noaa.gov/satellite/doldrums_v2/index.php>
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: none
Compatibility_Information: The data formats provided are commonly used data formats.
Digital_Form:
Digital_Transfer_Information:
Format_Name: KML
Format_Information_Content: Doldrums Google Earth Display
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://coralreefwatch.noaa.gov/satellite/doldrums_v2/index.php>
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: none
Compatibility_Information: The data formats provided are commonly used data formats.
Fees: none
Ordering_Instructions:
The product in various formats may be downloaded from the website or obtained directly from the distributor.

Metadata_Reference_Information:
Metadata_Date: 20130726
Metadata_Review_Date: 20130726
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coral Reef Watch program
Contact_Person: NOAA Coral Reef Watch Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA, E/RA31, SSMC1, Room 5308, 1335 East-West Highway
City: Silver Spring
State_or_Province: Maryland
Postal_Code: 20910-3226
Country: USA
Contact_Voice_Telephone: 301-713-2857 ext 109
Contact_Facsimile_Telephone: 301-713-3136
Contact_Electronic_Mail_Address: coralreefwatch@noaa.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

CoRIS:
CoRIS_ID: 20110815030742
CoRIS_Children: None
CoRIS_Beginning_Date: 20040601
CoRIS_Ending_Date: 99991231
CoRIS_Metadata_Link:
<http://www.coris.noaa.gov/metadata/records/html/crw_doldrums_25km_xml_2003_format_20110811.html>
CoRIS_Tracking_ID: 6331

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