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Short Citation:
National Centers for Coastal Ocean Science, 2023: Estimated Bathymetry of the Puerto Rico shelf,

Item Identification

Title: Estimated Bathymetry of the Puerto Rico shelf
Short Name: pr_bathy_metadata
Status: Completed
Publication Date: 2004-02-13

This classification of estimated depth represents the relative bathymetry of Puerto Rico's shallow waters based on Landsat imagery for NOAA's Coastal Centers for Monitoring and Assessment (CCMA). This data supports mapping and research activities of NOAA NOS. These data were created for the NOS Summit-to-Sea project. This project determines relationships between terrestrial and benthic change. The data were created using NOS developed algorithms. Bathymetry was derived from six Landsat images of different dates for Puerto Rico. The final bathymetry layer was derived from a per pixel median analysis of the 6 bathymetric layers. The results were verified using field collected depth supplied by NOAA. Depths are only reported within the shallow environment as determined by maximum penetration of band 1 (blue) of Landsat TM.


To map the bathymetry of Puerto Rico shallow water environment in support of the U.S. Coral Reef Task Force (CRTF) <>




Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
None Bathymetry/Topography
None Environmental Monitoring

Spatial Keywords

Thesaurus Keyword

Physical Location

Organization: National Centers for Coastal Ocean Science
City: Silver Spring
State/Province: MD

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: Unknown
Data Presentation Form: raster digital data
Distribution Liability:

The data provided on this CD-ROM are not to be used for navigation. Although these data have been successfully processed on a computer system at the National Oceanic and Atmospheric Administration, no warranty, either expressed or implied, is made by NOAA regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty.

Data Set Credit: NOAA Summit-to-Sea Project. 2004

Support Roles

Data Steward

CC ID: 470043
Date Effective From: 2004-02-13
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address:


CC ID: 470045
Date Effective From: 2004-02-13
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address:

Metadata Contact

CC ID: 470046
Date Effective From: 2004-02-13
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address:

Point of Contact

CC ID: 470044
Date Effective From: 2004-02-13
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address:

Principal Investigator

CC ID: 470047
Date Effective From: 2004-02-13
Date Effective To:
Contact (Person): Battista, Tim
Email Address:


Currentness Reference: Date of the Landsat scenes

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 470050
W° Bound: -67.519656
E° Bound: -65.092944
N° Bound: 18.702726
S° Bound: 17.728652

Extent Group 1 / Time Frame 1

CC ID: 470049
Time Frame Type: Range
Start: 1985-01-21
End: 2003-03-20

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Access Information

Security Class: Unclassified
Data Access Constraints:


Data Use Constraints:

not to be used for navigation. Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

Distribution Information

Distribution 1

CC ID: 470051
Download URL:

Online and Offline Data

File Type (Deprecated): PCI Geomatica format (.pix) and ERDAS IMAGINE (.img)
Distribution Format: IMG - ERDAS Imagine



CC ID: 470039
URL Type:
Online Resource


CC ID: 470040
URL Type:
Online Resource


CC ID: 470041
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 470059
Activity Date/Time: 2013-06-27

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 470058
Activity Date/Time: 2017-04-05

Converted from FGDC Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using '' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 585646
Activity Date/Time: 2017-09-13

Partial upload of Spatial Info section only.

Activity Log 4

CC ID: 601268
Activity Date/Time: 2017-11-01

Replaced entire Lineage section to populate new Source Contribution field.

Activity Log 5

CC ID: 716699
Activity Date/Time: 2018-02-08

Partial upload of Positional Accuracy fields only.

Technical Environment


ERDAS Imagine 8.6 on Dell Pentium 3 Windows NT

Data Quality


No formal attribute accuracy report was implemented. However ground truthing data and NOAA nautical charts were used for verification. Post-Processing Steps: None Known Problems: None Spatial Filters: None

Horizontal Positional Accuracy:

Total RMS for horizontal accuracy ranged from 12.6987 to 46.1257.

Vertical Positional Accuracy:

There was no terrain correction in the geo-referencing procedure.

Completeness Report:

Data are complete

Conceptual Consistency:

Checked for zeros in background and made sure all georeferencing was correct.



Estimated depth of the Puerto Rico shelf

CC ID: 601269
Contact Name: NOAA NOS
Publish Date: 2004-02-13
Extent Type: Range
Extent Start Date/Time: 1989-04-02
Extent End Date/Time: 2003-01-22
Citation URL:
Source Contribution:

NOAA NOS | Source Geospatial Form: remote-sensing image | Type of Source Media: Download, DVD, CD-ROM

Process Steps

Process Step 1

CC ID: 601270

Imported raw data AOI subsets into IMAGINE format from binary. Selected the best, least cloudy image sample for that path/row. We then ran a water reflectance formula (Bi-B4 or Bi-B5, where i= bands 1-3. This transform compensates for sun glint and water surface albedo) through IMAGINE. Once the water reflectance was available the log ratio method of bands 1 and 2 (m1*100*Log(B1-rdeepB1)/Log(B2-rdeepB2)-m0+0.5 where m1=slope and m0=shift) was applied by adjusting variables of slope and shift until the data reflected the field collected depths provided by NOS. (p005r048(20010711) m1=.8 m0=60 rdeepBlue=17 rdeedGreen=10 p005r047(20030122) m1=.9 m0=60 rdeepBlue=9 rdeepGreen=3 p005r047(20010727) m1=.8 m0=50 rdeepBlue=9 rdeepGreen=3 p005r47(19850402) m1=.9 m0=70 rdeepBlue=13.5 rdeepGreen=4 p005r47(19920819) m1=.6 m0=80 rdeepBlue=20 rdeepGreen=1 p004r048(20030320) m1=1.1, m0=85.45, rdeepBlue=18 rdeepGreen=5 p004r048(20000818) m1=0.87, m0=73, rdeepBlue=10.1 rdeepGreen=1.9 p004r047_048(19920625) m1=0.85, m0=110, rdeepBlue=24.5 rdeepGreen=3 p004r047_048(19891023) m1=0.6, m0=65, rdeepBlue=10.5 rdeepGreen=1.6 p004r047_048(20010720) m1=0.85, m0=65, rdeepBlue=12 rdeepGreen=1.5 p004r047_048(20030304) m1=0.8, m0=70, rdeepBlue=9 rdeepGreen=2.5 p004r047(20000327) m1=0.8, m0=65, rdeepBlue=7.3 rdeepGreen=1.3 p004r047(19850310) m1=1.2, m0=100, rdeepBlue=16.6 rdeepGreen=1.6 p004r047(19850121) m1=0.75, m0=65, rdeepBlue=10.6 rdeepGreen=1) The median analysis was our next step where the layers were stacked then the median for each pixel was determined. Bathymetry estimations for different path/rows were then mosaicked to create a continuous layer for all of Puerto Rico, including Culebra and Vieques Islands.Process Date Range is 20031202 - 20040101

Process Date/Time: 2004-01-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity Shallow shelf marine environment of Puerto Rico

Catalog Details

Catalog Item ID: 39428
GUID: gov.noaa.nmfs.inport:39428
Metadata Record Created By: Tyler Christensen
Metadata Record Created: 2017-04-05 12:52+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-10-17 16:12+0000
Metadata Record Published: 2018-02-08
Owner Org: NCCOS
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2018-02-08
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2019-02-08