Item Identification

Title: Optical Validation
Short Name: Optical Validation
Status: In Work
Abstract:

Except for very small areas, it is not logistically feasible to optically image more than a small fraction of the seafloor deeper than about 30 m within a coral reef ecosystem using any technology currently available. Accordingly, optical imagery of the seafloor is collected primarily to ground truth or validate the interpretation of benthic habitat characteristics from bathymetry, backscatter imagery, or other data. To date, optical data have been collected using two different types of systems. In shallow waters, at depths between a few meters and 20?30 m, towboard divers with the NOAA Pacific Islands Fisheries Science Center?s Coral Reef Ecosystem Division (CRED) collect video or still imagery while being towed behind a small boat over track lines pre-programmed into a handheld GPS unit. However, the majority of seafloor in most Pacific coral reef ecosystems is deeper than the approximately 30 m maximum depth attainable by standard CRED towboarding methods. For these deeper areas an evolving series of underwater camera sleds, usually referred to as the Towed Optical Assessment Device (TOAD), have been used to acquire optical validation data.

Purpose:

These data provide optical observations that will be correlated with bathymetry and acoustic backscatter imagery to develop benthic habitat maps for selected US locations in the Pacific.

Physical Location

Organization: Pacific Islands Fisheries Science Center
City: Honolulu
State/Province: HI
Country: USA

Support Roles

Data Steward

CC ID: 264810
Date Effective From: 2006
Date Effective To:
Contact (Person): Lichowski, Frances
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: frances.lichowski@noaa.gov
Phone: (808)725-5476
Contact Instructions:

Email preferred

Distributor

CC ID: 264809
Date Effective From: 2007
Date Effective To:
Contact (Person): Akridge, Michael W
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: michael.akridge@noaa.gov
Phone: (808)725-5483
Contact Instructions:

Email preferred

Metadata Contact

CC ID: 264808
Date Effective From: 2007
Date Effective To:
Contact (Person): Akridge, Michael W
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: michael.akridge@noaa.gov
Phone: (808)725-5483
Contact Instructions:

Email preferred

Originator

CC ID: 264811
Date Effective From: 2002
Date Effective To:
Contact (Organization): Pacific Islands Fisheries Science Center (PIFSC)
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Phone: 808-725-5300
URL: http://www.pifsc.noaa.gov
Business Hours: 8:00 a.m. - 4:30 p.m.

Point of Contact

CC ID: 264807
Date Effective From: 2010
Date Effective To:
Contact (Person): Rooney, John JB
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: john.rooney@noaa.gov
Phone: (808)725-5438
Contact Instructions:

Email preferred

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 77636
W° Bound: 144.44
E° Bound: -156.6797
N° Bound: 28.4207
S° Bound: -14.37157

Extent Group 1 / Time Frame 1

CC ID: 77637
Time Frame Type: Continuing
Start: 2001-09-13

URLs

URL 1

CC ID: 77638
URL: http://www.soest.hawaii.edu/pibhmc/
Description:

Pacific Islands Benthic Habitat Mapping Center (PIBHMC) website.

Catalog Details

Catalog Item ID: 12596
Metadata Record Created By: Annette M DesRochers
Metadata Record Created: 2012-07-12 20:28+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-06-04 13:14+0000
Metadata Record Published: 2015-12-31
Owner Org: PIFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2016-12-31