Gulf of Mexico Marine Geology and Geophysics from Field Activity: A-1-97-GM: West Flower Garden Bank bathymetry and backscatter data

Online link https://geo-nsdi.er.usgs.gov/metadata/digital-data/55/wf.faq.html
Description Bathymetry and seafloor backscatter data for the Flower Gardens National Marine Sanctuary are provided in TIFF image format. This data set contains data, metadata, and formal metadata associated with a marine data collection activity referred to by the US
Originators Dartnell, Peter and Gardner, James V.

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Overview of attributes

Bathymetry values are depth in meters
>Cell Size = 5.000
>Data Type: Floating Point
>Number of Rows = 2517
>Number of Columns = 2471
BOUNDARY
>Xmin = 412510.031
>Xmax = 424865.031
>Ymin = 3076795.750
>Ymax = 3089380.750
STATISTICS
>Minimum Value = -178.420
>Maximum Value = -16.232
>Mean = -107.947
>Standard Deviation = 23.573
Backscatter values are a digital number (DN) associated with the reflected energy off the seafloor
>Cell Size = 5.000
>Data Type: Floating Point
>Number of Rows = 2517
>Number of Columns = 2471
BOUNDARY
>Xmin = 412510.031
>Xmax = 424865.031
>Ymin = 3076795.750
>Ymax = 3089380.750
STATISTICS
>Minimum Value = 0.000
>Maximum Value = 241.364
>Mean = 176.392
>Standard Deviation = 8.294

http://pubs.usgs.gov/dds/dds-55/pacmaps/openfile.htm