CRED Optical Validation Data at the island of Kauai in the main Hawaiian Islands, 2005, to Support Benthic Habitat Mapping

Metadata also available as [Questions & Answers] - [Parseable text] - [XML]

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
Publication_Date: 200509
Title:
CRED Optical Validation Data at the island of Kauai in the main Hawaiian Islands, 2005, to Support Benthic Habitat Mapping
Geospatial_Data_Presentation_Form: Video imagery, track line navigation files, and log sheets
Online_Linkage: <http://www.soest.hawaii.edu/pibhmc>
Description:
Abstract:
Optical validation data were collected using a Tethered Optical Assessment Device (TOAD), an underwater sled equipped with an underwater digital video camera and lights. Data were collected at the main Hawaiian Islands, around the island of Kauai to support Benthic Habitat Mapping efforts during NOAA Ship Hi'ialakai cruise HI0505.
Purpose:
These data provide optical observations that will be correlated with bathymetry and acoustic backscatter imagery to develop a benthic habitat map of Kauai. Refer to supplemental information for description of instrument and survey.
Supplemental_Information:
Kauai, the oldest and northwestern most of the large Hawaiian islands, is also home to the wettest place on earth (Mount Waialeale). These factors have combined to erode any trace of the volcano's original shape, leaving the most complex terrestrial geomorphology of all the Hawaiian islands. Kauai is 1430 sq. km in area, reaches 1598 m at Kawaikini, has 145 km of shoreline and an estimated reef area of 266 sq. km. The island is roughly centered around 22 degrees 05N, 159degrees 30W, which makes it the most removed island from the magma-producing hotspot, along with Niihau. Kauai is separated from Niihau by only 21 km, but the channel between them is 1097 m deep. Like all of the main Hawaiian islands, it is considered a high island and contributes significant nutrient and sediment runoff to coastal waters. The human population was counted at 50,947 in 1990. Kauai has no designated marine protected areas.

Optical validation data were collected using the Tethered Optical Assessment Device (TOAD), a sled equipped with underwater video camera and lights. These data are used to provide ground-truth validation for benthic habitat maps based on multibeam echosounder surveys. Camera sled deployments were conducted at night, usually between 1800 and midnight. The duration of each tow varied but averaged about 40 minutes of bottom time at a given location. The camera sled was deployed from lower arm of the starboard J-frame on the NOAA Ship Hi'ialakai. At each station the ship was positioned with the wind on the starboard side and drifted downwind; occasional light turns were applied to the ship's screws if necessary to reduce the ship's motion. The TOAD was lowered slowly to the bottom by the deck crew. The operator monitored a live video feed from the camera and began recording data on two video tape recorders. When the camera reached bottom the deck crew was notified by radio to stop lowering. The operator continued to monitor the vehicle and provided commands to raise or lower it to keep the camera just above the bottom.

Equipment Description: The TOAD was deployed from the lower arm of the vessel's J-frame. The TOAD is a camera sled based on the Guildline MiniBat model 8820 tow body. The frame has been extensively modified from its original configuration and was equipped with an ROS model 54-00100-13 color underwater video camera as the primary data collection instrument. The ROS camera was mounted to point at approximately a 45 degree angle toward the seafloor. A Deep Sea Power and Light model 2050 MultiSeaCam low-light color video camera was also mounted on the sled and aimed straight ahead. The signal from this camera was fed to a second video monitor to provide warning of underwater obstructions the sled might be headed for. Illumination was provided by two 500 W DeepSea Power & Light Multi-SeaLite model 1050 underwater lights mounted on the original sled frame. The lights were located near the base and each side of the sled to provide the maximum possible horizontal distance from the ROS camera. An ORE Offshore model 4330B Multibeacon was attached to the sled to provide a response to acoustic interrogations sent by the Hi'ialakai's Model 4410D-01 Trackpoint II Plus Ultrashort Baseline acoustic tracking system. Cable between the sled and the surface consisted of an underwater electrical cable (cable 1, blue in color) with a separate load-bearing line to support the sled frame. The electrical cable was clipped to the line at regular intervals upon deployment and removed upon recovery. The load-bearing line was led to the starboard capstan on the aft deck. All TOAD surface components were located in the Dry Lab in an equipment rack on the after bulkhead.

Name & address of person collecting data: John Rooney NOAA IRC NMFS/PIFSC/CRED 1845 WASP Blvd., Building 176 Honolulu, HI 96818

Data Files: Video data were recorded on two video tape recorders. The position of the camera sled was recorded using Hypack Max version 02.012a survey software.

File naming convention: Each tow is given a name consisting of a 3-letter designator for the island area followed by a two-digit year and three-digit tow number. For example, during HI0505 (NOAA Ship Hi'ialakai's 5th cruise in calendar year 2005) the first tow was called OAH05000. Video tape labels and paper log forms are annotated with the tow name. Data files recorded in Hypack software followed their CHS filename format consisting of the year, the first two letters of the platform name, the Julian date, and the hour and minute in which the file was started. For example, a file collected on July 18, 2005 (Julian date 199) aboard the Hi'ialakai starting at time 1935 would be 2005HI1991935.

Time Correlation: All times are based on UTC. Four clocks were manually synchronized prior to starting data collection; the clock in the video character generator that was used to annotate the video tape, in one of the video cassette recorders, in the Trackpoint II system, and in the computer running the Hypack Max software. These clocks were set to UTC at the beginning of each evening's operations.

Resource Description: Digital video imagery that is geo-referenced to navigation files.

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050716
Ending_Date: 20050722
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -159.79152
East_Bounding_Coordinate: -159.27832
North_Bounding_Coordinate: 22.25148
South_Bounding_Coordinate: 21.86319
Keywords:
Theme:
Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword: EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat
Theme_Keyword:
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Photographic Analysis > Videography
Theme_Keyword:
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Tethered Optical Assessment Video (TOAD)
Theme_Keyword: Underwater video
Theme_Keyword: HI0505
Theme:
Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
Theme_Keyword: Visual Images > Habitats
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: biota
Place:
Place_Keyword_Thesaurus: CoRIS Place Thesaurus
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Kauai Island > Kauai Island (22N159W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Kauai Island (22N159W0001)
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Main Hawaiian Islands
Place:
Place_Keyword_Thesaurus: CoRIS Region
Place_Keyword: MHI
Access_Constraints: None
Use_Constraints:
Please acknowledge the NOAA Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center as the source of this information.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
Contact_Person: John Rooney
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA IRC
Address: NMFS/PIFSC/CRED
Address: 1845 WASP Blvd., Building 176
City: Honolulu
State_or_Province: HI
Postal_Code: 96818
Contact_Voice_Telephone: 808 725-5360
Contact_Facsimile_Telephone: 808 725-5429
Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Data_Set_Credit:
Pacific Island Benthic Habitat Mapping Center, Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), NOAA
Security_Information:
Security_Classification_System: Not applicable
Security_Classification: Unclassified
Security_Handling_Description: Not applicable

Data_Quality_Information:
Logical_Consistency_Report: Unspecified
Completeness_Report: Complete
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal position accuracy for the camera sled position is estimated at plus or minus 60 meters. There are two primary sources of this error. The ship's positioning is based on GPS SPS, often called standalone or non-differential GPS positioning. SPS has a measured accuracy of under 5 meters. The position of the GPS antenna is referenced to the ship's granite block. The second and larger primary source of error is uncertainty associated with the sled's position as reported by the Trackpoint II acoustic tracking system, which is also referenced to the granite block.
Lineage:
Process_Step:
Process_Description:
After a tow was completed the video tape data was reviewed by spot-checking the master and backup tape to verify that data were recorded. Raw data files recorded using Hypack Max software include time, horizontal position, and ship's heading information were copied from the acquisition computer to the data archive. Tow-specific metadata were recorded in the data archive in the same location as the raw data, in a spreadsheet that was then referred to in creating metadata records of each island where data were collected during the cruise. Raw data files were exported as comma-delimited text files which were then imported into ArcGIS v8.3 and saved as shapefiles.
Process_Date: 20050720

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
Contact_Person: John Rooney
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA IRC
Address: NMFS/PIFSC/CRED
Address: 1845 WASP Blvd., Building 176
City: Honolulu
State_or_Province: HI
Postal_Code: 96818
Contact_Voice_Telephone: 808 725-5360
Contact_Facsimile_Telephone: 808 725-5429
Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Resource_Description: Offline Data
Distribution_Liability:
These data are not to be used for navigational purposes. 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: ASCII
Format_Information_Content:
Each comma-delimited record contains information on the UTC date and time, horizontal position of the sled, and heading of the ship over the period of time that the camera sled is in the water. List of navigation files: 2005HI1970527.RAW 2005HI1970644.RAW 2005HI1970806.RAW 2005HI1970945.RAW 2005HI1980457.RAW 2005HI1980600.RAW 2005HI1980728.RAW 2005HI1981045.RAW 2005HI2020434.RAW 2005HI2020630.RAW 2005HI2020906.RAW 2005HI2021106.RAW 2005HI2030442.RAW
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: ISO 9660
Digital_Form:
Digital_Transfer_Information:
Format_Name: mini digital video
Format_Information_Content:
11h 32 m of video data are available covering 24.9 km of seabed. These data were recorded on 14 video tapes List of video tapes: KAU05000, Mini DV, Master and Backup KAU05001, Mini DV, Master and Backup KAU05002, Mini DV, Master and Backup KAU05003, Mini DV, Master and Backup KAU05004, Mini DV, Master and Backup KAU05005, Mini DV, Master and Backup KAU05006, Mini DV, Master and Backup KAU05007, Mini DV, Master and Backup KAU05008, Mini DV, Master and Backup KAU05009a, Mini DV, Master and Backup KAU05009b, Mini DV, Master and Backup KAU05010, Mini DV, Master and Backup KAU05011, Mini DV, Master and Backup KAU05012, Mini DV, Master and Backup
Digital_Transfer_Option:
Offline_Option:
Offline_Media: Video cassette tape
Recording_Format: Mini DV
Fees: None

Metadata_Reference_Information:
Metadata_Date: 20140312
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
Contact_Person: CRED Data Management Team
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA IRC
Address: NMFS/PIFSC/CRED
Address: 1845 WASP Blvd., Building 176
City: Honolulu
State_or_Province: HI
Postal_Code: 96818
Contact_Voice_Telephone: 808 725-5360
Contact_Facsimile_Telephone: 808 725-5429
Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

CoRIS:
CoRIS_ID: 20080502065722
CoRIS_Children: None
CoRIS_Beginning_Date: 20050716
CoRIS_Ending_Date: 20050722
CoRIS_Metadata_Link:
<http://www.coris.noaa.gov/metadata/records/html/cred_toad_kauai_hi0505_2005.html>
CoRIS_Tracking_ID: 1342

Generated by mp version 2.9.13 on Sat Sep 20 10:41:19 2014