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Five Year Mean Euphotic Depth in the Northern Gulf of Mexico for 2005 through 2009

Metadata Updated: April 15, 2024

These images were created by combining the mean euphotic depth estimates to produce seasonal representations for winter, spring, summer and fall. Winter includes the months of January, February and March; spring includes the months of April, May and June; summer includes the months of July, August and September; fall includes the months of October, November and December. Euphotic depth estimates were originally obtained from the Naval Research Laboratory at the Stennis Space Center (NRL/SSC). NRL/SSC processed MODIS-Aqua satellite imagery covering the Gulf of Mexico, for a 5-year time period from January 2005 through December 2009. The Gulf of Mexico was divided into three regions, western, central and eastern. For purposes of this image, the three regions were joined in ArcMAP 10. To calculate euphotic depth (Zeu) from the satellite imagery, NRL first estimated the absorption and backscattering coefficients of the water from the satellite remote sensing reflectance (Rrs) values (Lee et al. 2002), and then used those coefficients to estimate Zeu and make image products. The diffuse attenuation coefficient was calculated two ways: at 490 nm using the NASA empirical KD2 algorithm and at 488 nm using the semi-analytical algorithm of Lee et al. (2005a). The Lee et al. (2005a) algorithm is accurate to about 15%, compared to in situ measurements (Lee et al. 2005b).

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date February 29, 2024
Metadata Created Date November 12, 2020
Metadata Updated Date April 15, 2024
Reference Date(s) 2012-05 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NOS OCM

Additional Metadata

Resource Type Dataset
Metadata Date February 29, 2024
Metadata Created Date November 12, 2020
Metadata Updated Date April 15, 2024
Reference Date(s) 2012-05 (publication)
Responsible Party NOAA Office for Coastal Management (Point of Contact, Custodian)
Contact Email
Guid gov.noaa.nmfs.inport:48038
Access Constraints Cite As: Office for Coastal Management, [Date of Access]: Five Year Mean Euphotic Depth in the Northern Gulf of Mexico for 2005 through 2009 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48038., Access Constraints: None, Use Constraints: None, Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of the NOAA Office for Coastal Management or its partners.NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA, NESDIS, NODC and NCDDC 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.
Bbox East Long -81.1
Bbox North Lat 30.9
Bbox South Lat 25.2
Bbox West Long -98.1
Coupled Resource
Frequency Of Update notPlanned
Harvest Object Id e467b4c5-120a-4fd0-b89f-828a19abe4ff
Harvest Source Id c0121fd9-df15-4168-ac04-42f6e36a794d
Harvest Source Title NOS OCM
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Lineage
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-98.1, 25.2], [-81.1, 25.2], [-81.1, 30.9], [-98.1, 30.9], [-98.1, 25.2]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2005-01-01
Temporal Extent End 2009-12-01

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