Short Citation:
Pacific Islands Fisheries Science Center, 2021: Oceanographic data, including conductivity, temperature, depth, dissolved oxygen, fluorescence, and turbidity, collected during towed-diver surveys conducted from November 3-18, 2015 in the Main Hawaiian Islands to assess damage from the 2015 mass coral bleaching event, https://www.fisheries.noaa.gov/inport/item/32586.

Item Identification

Title: Oceanographic data, including conductivity, temperature, depth, dissolved oxygen, fluorescence, and turbidity, collected during towed-diver surveys conducted from November 3-18, 2015 in the Main Hawaiian Islands to assess damage from the 2015 mass coral bleaching event
Short Name: Bleaching: 2015 Oceanographic Data
Status: Completed
Creation Date: 2018-01-31
Publication Date: 2019
Abstract:

The oceanographic data included in this dataset were collected by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD; formerly the Coral Reef Ecosystem Division) from November 3-18, 2015 with funding from the NOAA Coral Reef Conservation Program. The purpose of the two-week research cruise was to evaluate the impacts of the 2015 mass coral bleaching event in the Main Hawaiian Islands. A modified version of ESD's towed-diver method was used to conduct surveys around south Oahu, west Maui, Lanai, and west Hawaii island. The modified towed-diver method involved towing a pair of SCUBA divers behind a small boat for 50 minutes and covering a linear distance of ~2 kilometers per survey. Each diver was equipped with a towboard and attempted to maintain position ~1 meter above the surface of the reef for the duration of the survey. The oceanographic data was collected with a Seabird Electronics 19P CTD mounted to one of the towboards with two auxillary sensors connected to it, including a Seabird Electronics SBE43 oxygen sensor and a Wet labs FLNTURTD fluorometer and scattering meter. The data were collected continuously throughout each survey and included conductivity, temperature, depth, dissolved oxygen, fluorescence, and turbidity. A complete towed-diver survey includes ten 5-minute segments, with oceanographic data averaged by 5-minute segment to correspond with the visual observations recorded by the benthic diver. At the conclusion of the mission, approximately 90 kilometers of 15-m wide transects at depths ranging from ~1 m to ~13 m were surveyed.

Purpose:

The 2014–2015 global coral bleaching event brought widespread and severe impacts to the entire Hawaiian archipelago. In 2015, the corals of the Main Hawaiian Islands were subjected to unprecedented levels of thermal stress that resulted in the most severe coral bleaching ever recorded in the islands. To document the event, local researchers and reef managers conducted free-swimming diver surveys in areas generally accessible via same-day field excursions. In an effort to survey larger high coral cover areas that are not as accessible, the Ecosystem Sciences Division at the Pacific Islands Fisheries Science Center led a two-week research cruise in November 2015 aboard the NOAA Ship Hi‘ialaka‘i to evaluate the impacts of the 2015 coral bleaching event in the Main Hawaiian Islands.

Notes:

Publication to be submitted to PIFSC Editorial for review by August 2019

Keywords

Theme Keywords

Thesaurus Keyword
CoRIS Discovery Thesaurus Numeric Data Sets > Oceanography
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Chemical
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Physical
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Physical
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Climate Change
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Dissolved Gases
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Oxygen
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Optics > Fluorescence
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Optics > Turbidity
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Pressure > Sea Level Pressure
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Salinity/Density > Conductivity
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Salinity/Density > Salinity
ISO 19115 Topic Category 014
ISO 19115 Topic Category oceans
NODC DATA TYPES THESAURUS CONDUCTIVITY
NODC DATA TYPES THESAURUS DEPTH - SENSOR
NODC DATA TYPES THESAURUS DISSOLVED OXYGEN
NODC DATA TYPES THESAURUS FLUORESCENCE
NODC DATA TYPES THESAURUS HYDROSTATIC PRESSURE
NODC DATA TYPES THESAURUS OXYGEN - PERCENT SATURATION
NODC DATA TYPES THESAURUS SALINITY
NODC DATA TYPES THESAURUS turbidity
NODC DATA TYPES THESAURUS WATER TEMPERATURE
NODC INSTRUMENT TYPES THESAURUS CTD
NODC INSTRUMENT TYPES THESAURUS fluorometer
NODC INSTRUMENT TYPES THESAURUS nephelometer
NODC INSTRUMENT TYPES THESAURUS oxygen meter
NODC OBSERVATION TYPES THESAURUS in situ
NODC OBSERVATION TYPES THESAURUS physical
NODC PLATFORM NAMES THESAURUS HI'IALAKAI
NODC PROJECT NAMES THESAURUS Coral Reef Conservation Program
NODC PROJECT NAMES THESAURUS CORAL REEF STUDIES
NODC SUBMITTING INSTITUTION NAMES THESAURUS US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division
None Coral Reef Ecosystem Division
None Coral Reef Ecosystem Program
None CRED
None CREP
None Ecosystem Sciences Division
None ESD
None Pacific Islands Fisheries Science Center
None PIFSC

Spatial Keywords

Thesaurus Keyword
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Hawaii (21N160W0000)
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Hawaii Island (19N155W0003)
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Oahu (21N157W0003)
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Hawaii > Maui > Lanai Island (20N156W0002)
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Hawaii > Maui > Maui Island (20N156W0004)
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Hawaiian Islands (21N157W0027)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands (21N157W0027)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii > Hawaii (21N160W0000)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii Island > Hawaii Island (19N155W0003)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Lanai Island > Lanai Island (20N156W0002)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Maui Island > Maui Island (20N156W0004)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Oahu (21N157W0003)
NODC SEA AREA NAMES THESAURUS North Pacific Ocean
None Main Hawaiian Islands
None MHI

Physical Location

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

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: CSV Files
Maintenance Frequency: None Planned
Maintenance Note:

Dataset submitted to NCEI May 2019

Data Presentation Form: Table (digital)
Entity Attribute Overview:

Dataset includes field metadata and oceanographic parameters collected during towed-diver surveys and processed to the segment level (5-minute observation). Oceanographic data include mean and standard deviation of pressure, depth, temperature, conductivity, salinity, oxygen saturation and concentration, fluorescence, and turbidity.

Entity Attribute Detail URL: https://www.fisheries.noaa.gov/inport/item/56270
Distribution Liability:

While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.

Data Set Credit: PIFSC Ecosystem Sciences Division and funded by the NOAA Coral Reef Conservation Program

Support Roles

Data Set Credit

CC ID: 351835
Date Effective From: 2015
Date Effective To:
Contact (Organization): NOAA Coral Reef Conservation Program (CRCP) (CRCP)
Address: 1305 East West Highway 10th Floor
Silver Spring, MD 20910-3281
Phone: (301) 713-3155
URL: http://coralreef.noaa.gov

Data Steward

CC ID: 351837
Date Effective From: 2015
Date Effective To:
Contact (Person): Pomeroy, Noah
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: noah.pomeroy@noaa.gov
Phone: (808)725-5439
Contact Instructions:

Email preferred

Distributor

CC ID: 351832
Date Effective From: 2019
Date Effective To:
Contact (Organization): National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD)
Address: NOAA/NESDIS E/OC SSMC3, 4th Floor, 1351 East-West Highway
Silver Spring, MD 20910-3282
Phone: (301) 713-3277

Distributor

CC ID: 351836
Date Effective From: 2015
Date Effective To: 2018
Contact (Person): Oliver, Thomas
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: thomas.oliver@noaa.gov
Phone: (808)725-5444

Metadata Contact

CC ID: 351834
Date Effective From: 2015
Date Effective To:
Contact (Person): DesRochers, Annette M
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: annette.desrochers@noaa.gov
Phone: (808)725-5461
Business Hours: 8 am - 5 pm
Contact Instructions:

Email preferred

Originator

CC ID: 351838
Date Effective From: 2015
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: 351833
Date Effective From: 2015
Date Effective To:
Contact (Person): Oliver, Thomas
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: thomas.oliver@noaa.gov
Phone: (808)725-5444
Contact Instructions:

Email preferred

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Description:

Main Hawaiian Islands, including Hawaii, Maui, Lanai, and Oahu islands.

Extent Group 1 / Geographic Area 1

CC ID: 351840
W° Bound: -157.9472292246
E° Bound: -155.8293419903
N° Bound: 21.3030689284
S° Bound: 19.7485369637
Description

Extent of underwater surveys in Main Hawaiian Islands in November 2015.

Extent Group 1 / Time Frame 1

CC ID: 351841
Time Frame Type: Range
Start: 2015-11-03
End: 2015-11-18
Alternate Start As Of Info: HA1602
Description:

Time frame of surveys conducted in Main Hawaiian Islands.

Access Information

Security Class: Unclassified
Security Classification System:

Not applicable

Security Handling Description:

Not applicable

Data Access Policy:

NOAA Coral Reef Ecosystem Program (CREP) Data Sharing Recommendations, version 9.0 updated August 12, 2015:

CREP welcomes the opportunity to collaborate on research issues contributing to the scientific basis for better management of marine ecosystems. CREP has a very diverse set of field activities that generates large volumes of data using an array of data collection protocols.

The following recommendations are for your consideration as you use this data:

1) Data analyses should take all field exigencies into account. The most effective way to do this would be active collaboration with CREP principal investigators.

2) In all presentations, product releases, or publications using data generated by CREP, proper acknowledgement of both CREP and the individuals responsible for data collection is expected. Citing the DOI (if available) is preferred, a non-DOI example is listed below.

3) If you collect or generate data for the same study areas, CREP requests that you share relevant information on complimentary data collections.

4) Those receiving data are strongly urged to inform the CREP Data Management Team of any errors and discrepancies that are discovered during the course of using these data. They are further urged to bring to the attention of the Team all problems and difficulties encountered in using these data. This information is necessary in order to improve the collections and to facilitate more efficient and economical data processing and retrieval. The users are asked to supply copies of any missing data that may be located, and to provide information as to significant subsets and special aggregations of data that are developed in using the material provided.

Example citation:

"This publication makes use of data products provided by the Ecosystem Sciences Division (ESD), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), with funding support from the NOAA Coral Reef Conservation Program (CRCP). The analysis and interpretations presented here are solely that of the current authors.”

Data Access Procedure:

Data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive.

Data Access Constraints:

None

Data Use Constraints:

Please cite PIFSC Ecosystem Sciences Division (ESD) when using the data.

Suggested citation:

Ecosystem Sciences Division; Pacific Islands Fisheries Science Center, 2019: Oceanographic data, including conductivity, temperature, depth, dissolved oxygen, fluorescence, and turbidity, collected during towed-diver surveys conducted from November 3-18, 2015 in the Main Hawaiian Islands to assess damage from the 2015 mass coral bleaching event, https://www.fisheries.noaa.gov/inport/item/32586.

Metadata Access Constraints:

None

Metadata Use Constraints:

None

Distribution Information

Distribution 1

CC ID: 351845
Download URL: http://accession.nodc.noaa.gov/0189254
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2019 - Present)
File Name: Bleaching2015_TOW_Oceanography.csv
Description:

Oceanographic data from towed-diver surveys of benthic habitat by the PIFSC Ecosystem Sciences Division (ESD) conducted around the Main Hawaiian Islands (HA1602) in 2015.

File Date/Time: 2019-05-05 00:00:00
File Type: .csv

URLs

URL 1

CC ID: 351843
URL: https://www.fisheries.noaa.gov/pacific-islands/ecosystems/surveying-vast-ocean
Name: PIFSC Ecosystem Sciences
URL Type:
Online Resource

Data Quality

Representativeness:

Oceanographic measurements were averaged by each 5-min segment of the tow survey.

Accuracy:

Standard deviation, in addition to each mean value, is provided for each metric.

Completeness Report:

This survey effort specifically targeted areas of known high coral coverage to evaluate bleaching impact. Although efforts are made to include broad spatial coverage of surveys at each island, weather conditions prevented the team from surveying various exposed reef areas.

Quality Control Procedures Employed:

Observations, including species identification and coverage area estimates were periodically checked during the expedition for consistency between divers. Data entry was usually conducted on the same day as the surveys using MS Access. Data was quality controlled by the divers using a two-person system. The data was then run through rigorous quality control checks by the data management team before the data was migrated to the Oracle database. Given the size of the data set, there remains some possibility of typographical or other errors.

Data Management

Have Resources for Management of these Data Been Identified?: Yes
Approximate Percentage of Budget for these Data Devoted to Data Management: Unknown
Do these Data Comply with the Data Access Directive?: Yes
Is Access to the Data Limited Based on an Approved Waiver?: No
Approximate Delay Between Data Collection and Dissemination: Unknown
Actual or Planned Long-Term Data Archive Location: NCEI-MD
Approximate Delay Between Data Collection and Archiving: Unknown
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

NOAA IRC and NOAA Fisheries ITS resources and assets.

Lineage

Lineage Statement:

Modified towed-diver survey methodology to collect benthic observations, images, and oceanographic data around the main Hawaiian Islands to be used to assess impacts from the 2015 mass coral bleaching event.

Sources

Research Report: Observing and Documenting Predicted 2015/2016 Mass Coral Bleaching Events in Hawaii

CC ID: 845903
Contact Role Type: Originator
Contact Type: Person
Contact Name: Thomas Oliver, Noah Pomeroy
Source Contribution:

Draft report in progress as of May 30 2019. To be submitted for review August 2019.

Process Steps

Process Step 1

CC ID: 351609
Description:

A pair of scuba divers was towed about 1 m above the reef roughly 30 m behind a small boat at a constant speed of about 1.5 knots. Both divers collected visual observations of the benthos. Tow-boards were connected to the small boat by a bridle and towline. Each tow survey was typically 50 minutes long and covered about 2 km of habitat. Each survey was divided into 5-minute segments, with data recorded separately per segment to allow for geo-referencing of observations within the ~200 m covered during each segment. Throughout a survey, the latitude and longitude of the survey track was recorded at 5-second intervals on the small boat with a global positioning system (GPS). Following a survey, diver tracks were generated using this GPS data and a layback algorithm to account for position of the diver relative to the small boat.

On one towboard, oceanographic data was collected continuously throughout each survey with a suite of mounted sensors recording conductivity, temperature, depth, fluorometry (chlorophyll-a), turbidity and dissolved oxygen. Sensors included a Seabird Electronics 19P CTD, and a Seabird Electronics SBE43 oxygen sensor and a Wet labs FLNTURTD fluorometer and scattering meter were connected to the 19P CTD.

For each 5-minute tow segment, each diver made observation of the benthos, corals, and bleaching status (documented and archived separately). Oceanographic measurements were averaged by each 5-min segment of the tow survey to correspond with the benthic observations recorded by the divers. The other towboard was outfitted with a downward facing camera that captured photos of the benthos (also documented and archived separately).

Process Contact: Oliver, Thomas
Phone (Voice): (808)725-5444
Email Address: thomas.oliver@noaa.gov
Source: Research Report: Observing and Documenting Predicted 2015/2016 Mass Coral Bleaching Events in Hawaii

Acquisition Information

Instruments

Instrument 1

CC ID: 845904
Identifier: towboard-benthic
Instrument / Gear: Instrument
Instrument Type: Benthic towboard
Description:

SCUBA divers conduct towed-diver surveys to assess relatively large areas of reef habitat and to survey large-bodied reef fishes. This method involves towing two divers (one fish, one benthic) behind a small surface craft that is moving at a velocity of 1-2 mph. The benthic towboard is equipped with a digital camera that is pointing in the downward-looking direction, to record the benthos over which the diver and camera are moving. The benthic diver maneuvers the towboard on which the camera is mounted and records selected data pertaining to the habitat using datasheets mounted on the towboard. The towboard is also equipped with a SEABIRD sensor that records depth and water temperature every 5 seconds. A GPS unit on the surface tow vessel records the trackline over which the divers are being towed.

Platforms

Platform 1

CC ID: 845933
Identifier: NOAA Ship Hi‘ialakai
Description:

NOAA Ship Hi‘ialakai is a multipurpose oceanographic research vessel whose primary missions include coral reef ecosystem mapping, coral reef health and fish stock studies, and maritime heritage surveys in the Pacific Islands Region. A T-AGOS class vessel, Hi‘ialakai was built in 1984 for the U.S. Navy and served as the U.S. Naval Vessel Vindicator. The ship was then transferred to the U.S. Coast Guard, and finally to NOAA in 2002, when it was converted to conduct coral reef research. The ship was commissioned in the NOAA fleet in 2004.

The 224-ft. ship is renowned for its work since 2004 assessing the health of coral reefs throughout the Pacific Islands. Scuba diving operations play a major role in the ship’s mission, and Hi‘ialakai is equipped for both shallow- and deep-water dive projects. The ship carries three small workboats that transfer divers to the working grounds, a 15-person dive locker to store scientific gear and equipment, and an air compressor to fill tanks. As Hi‘ialakai frequently operates in remote areas, the ship also carries a three-person, double-lock decompression chamber. In the event of a diving accident, the diver can be treated onsite.

The ship supports a scientific crew of ~22 and is equipped with wet and dry labs, a computer/electronics room, and a scientific freezer. Data collection systems include an acoustic current Doppler profiler, CTDs and water samples, a thermosalinograph, and two Kongsberg multibeam echosounders (EM300 and EM3002d). The ship supported multibeam mapping operations across the Pacific Island Regions primarily between 2004 and 2008.

In addition to supporting NOAA projects, Hi‘ialakai works in partnership with the University of Hawaii, State of Hawaii, and the U.S. Fish and Wildlife Service. The ship is homeported at the NOAA Marine Operations Center-Pacific Islands in Honolulu.

Mounted Instrument 1

Identifier: towboard-benthic

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity (ENT) TDS_BLEACHING_OCEANOGRAPHIC

Catalog Details

Catalog Item ID: 32586
Metadata Record Created By: Troy T Kanemura
Metadata Record Created: 2016-04-27 19:13+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2020-08-03 16:13+0000
Metadata Record Published: 2019-05-30
Owner Org: PIFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2020-05-30