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Short Citation:
Pacific Islands Fisheries Science Center, 2022: National Coral Reef Monitoring Program: Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in the Mariana Archipelago in 2017, https://www.fisheries.noaa.gov/inport/item/54927.

Item Identification

Title: National Coral Reef Monitoring Program: Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in the Mariana Archipelago in 2017
Short Name: NCRMP: Diel Marianas
Status: On Going
Creation Date: 2019
Publication Date: 2021
Abstract:

The ocean acidification diel suite is an autonomous instrument package that measures diel variability in coral reef seawater carbonate chemistry. Diel suite surveys are conducted by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) within coral reef ecosystems across the Pacific Islands Region as part of the NOAA National Coral Reef Monitoring Program (NCRMP). The data provided in this data set are from diel suites deployed at select sites at Guam, Aguijan, Maug, and Pagan islands in the Mariana Archipelago between May 6 and June 17 during the ESD-led NCRMP mission to the Mariana Archipelago in 2017.

Diel suites were deployed on the reef for at least 24 hours to measure in-situ salinity, temperature, pressure, pH, and current direction and magnitude. Seawater samples were also collected for laboratory analyses of dissolved inorganic carbon (DIC) and total alkalinity (TA). Components of the carbonate system--including pH, pCO2 (partial pressure of carbon dioxide), and aragonite saturation state--are calculated from DIC, TA, temperature, salinity and pressure. Each diel suite typically consisted of: 1 SBE-19plus CTD sensor, 1 Nortek Acoustic Doppler Current Profiler (ADCP), 1 Satlantic SeaFET Ocean pH sensor, and up to 9 Programmable Underwater Collectors (PUCs), each of which collected 1 water sample at 4-hour intervals. Instruments deployed, samples collected, and sample intervals are recorded in the meta file enclosed with the data package, and exceptions to the standard diel suite are also noted.

Purpose:

Manual seawater sampling and other National Coral Reef Monitoring Program (NCRMP) field monitoring efforts are limited to daylight hour operations. As a result, these data sets do not capture full 24-hour variability in coral reef physical and chemical environments. The ocean acidification diel suite was developed to increase the temporal resolution and coverage of oceanographic and carbonate chemistry measurements and contextualize daytime sampling within the full diel cycle.

Supplemental Information:

The NOAA National Coral Reef Monitoring Program (NCRMP) details a long-term approach to provide an ecosystem perspective via monitoring climate, fish, benthic, and socioeconomic variables in a consistent and integrated manner. The NCRMP is intended to coordinate various NOAA Coral Reef Conservation Program (CRCP) biological, physical, and human dimensions activities into a cohesive NOAA-wide effort. Through the implementation of the NCRMP, NOAA will be able to clearly and concisely communicate results of national-scale monitoring to national, state, and territorial policy makers, resource managers, and the public on a periodic basis.

NCRMP provides a framework for conducting sustained observations of biological, climate, and socioeconomic indicators at 10 priority coral reefs across the U.S. and its territories. This integrated approach consolidates monitoring of coral reefs under a uniform method in the Pacific, Atlantic, Caribbean, and the Gulf of Mexico for the first time. NCRMP is funded by the CRCP and supported by NOAA Fisheries, NOAA National Centers for Coastal Ocean Science (NCCOS), NOAA's Atlantic Oceanographic & Meteorological Laboratory (AOML), NOAA Coral Reef Watch, and many other partners.

The Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) at NOAA Fisheries is leading in-situ climate monitoring in the U.S. Pacific Islands Region as part of the ongoing Pacific Reef Assessment and Monitoring Program (RAMP). The climate component of NCRMP in the Pacific provides a comprehensive view of climate change impacts on coral reef ecosystems and helps identify areas of resilience and vulnerability. The key indicators used to identify and monitor climate-driven trends include 1) thermal stress caused by changes in sea temperature, 2) ocean acidification resulting from changes in carbonate chemistry, and 3) ecological impacts by collecting data on coral growth rates, erosion, and community structure to understand the impacts of thermal stress and ocean acidification on the ecosystem. Each year, ESD scientists work closely with CRCP and partners during Pacific RAMP missions to collect data using moored oceanographic (subsurface temperature recorders) and ecological (calcification accretion units [CAUs] and autonomous reef monitoring structures [ARMS]) instruments stationed at fixed sites in the Pacific Ocean, and water samples collected by divers. The in-situ data and satellite-based observations are also used in modeling efforts. Innovative analysis techniques are used to develop products that give fellow scientists, managers, decision makers and the public a better understanding of a region's resources and how they are changing over time.

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
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
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 > Oceans > Coastal Processes > Coral Reefs
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Alkalinity
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Calcification
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Carbon Dioxide > Partial Pressure
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Carbonate Chemistry
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Chemistry Monitoring and Assessment
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Climate Change
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Dissolution
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Dissolved Gases
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Dissolved Inorganic Carbon
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Ocean Acidification
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > pH
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Chemistry > Saturation State
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Circulation
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Circulation > Water Current Direction
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Ocean Circulation > Water Velocity
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 > Density
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Salinity/Density > Salinity
CRCP Project 743
CRCP Project National Coral Reef Monitoring Program
ISO 19115 Topic Category 014
ISO 19115 Topic Category oceans
NODC DATA TYPES THESAURUS ALKALINITY - TOTAL [total alkalinity]
NODC DATA TYPES THESAURUS ARAGONITE SATURATION STATE
NODC DATA TYPES THESAURUS CONDUCTIVITY
NODC DATA TYPES THESAURUS CURRENT DIRECTION
NODC DATA TYPES THESAURUS CURRENT SPEED
NODC DATA TYPES THESAURUS DEPTH - SENSOR
NODC DATA TYPES THESAURUS DISSOLVED INORGANIC CARBON (DIC)
NODC DATA TYPES THESAURUS partial pressure of carbon dioxide - water
NODC DATA TYPES THESAURUS pH
NODC DATA TYPES THESAURUS PRESSURE - WATER [HYDROSTATIC PRESSURE]
NODC DATA TYPES THESAURUS SALINITY - BOTTOM WATER
NODC DATA TYPES THESAURUS SIGMA-T
NODC DATA TYPES THESAURUS WATER TEMPERATURE
NODC INSTRUMENT TYPES THESAURUS Coulometer for DIC measurement
NODC INSTRUMENT TYPES THESAURUS CTD - moored CTD
NODC INSTRUMENT TYPES THESAURUS pH sensor
NODC INSTRUMENT TYPES THESAURUS titrator
NODC OBSERVATION TYPES THESAURUS continuous
NODC OBSERVATION TYPES THESAURUS current measurements
NODC OBSERVATION TYPES THESAURUS in situ
NODC OBSERVATION TYPES THESAURUS physical
NODC OBSERVATION TYPES THESAURUS time series profile
NODC OBSERVATION TYPES THESAURUS water chemistry
NODC PLATFORM NAMES THESAURUS HI'IALAKAI
NODC PROJECT NAMES THESAURUS Coral Reef Conservation Program
NODC PROJECT NAMES THESAURUS CORAL REEF STUDIES
NODC PROJECT NAMES THESAURUS National Coral Reef Monitoring Program
NODC SUBMITTING INSTITUTION NAMES THESAURUS US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division
None ADCP
None Coral Reef Ecosystem Division
None Coral Reef Ecosystem Program
None CRED
None CREP
None CTD
None diel
None Ecosystem Sciences Division
None ESD
None National Coral Reef Monitoring Program
None NCRMP
None Pacific Islands Fisheries Science Center
None PIFSC
None programmable underwater collector
None PUC
None RAMP
None Rapid Ecological Assessment
None REA
None Reef Assessment and Monitoring Program
None water samples

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
CoRIS Place Thesaurus COUNTRY/TERRITORY > Northern Mariana Islands > Aguihan > Aguihan Island (Aguijan) (14N145E0006)
CoRIS Place Thesaurus COUNTRY/TERRITORY > Northern Mariana Islands > Maug > Maug Island (20N145E0001)
CoRIS Place Thesaurus COUNTRY/TERRITORY > Northern Mariana Islands > Pagan > Pagan Island (18N145E0001)
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Aguihan Island Reefs > Aguihan Island (Aguijan) (14N145E0006)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Guam (13N144E0000)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Maug Island > Maug Island (20N145E0001)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Pagan Island > Pagan Island (18N145E0001)
NODC SEA AREA NAMES THESAURUS Marianas Trench Marine National Monument
NODC SEA AREA NAMES THESAURUS NW Pacific
None CNMI
None Commonwealth of the Northern Mariana Islands
None Mariana Archipelago
None Marianas

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: As Needed
Maintenance Note:

Initially published in 2019 with data collected in 2017. Updated in 2021 with new columns and updated field data.

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

CTD data include conductivity, temperature, and pressure observations with calculated depth, salinity, and density.

Water samples are analyzed for dissolved inorganic carbon (DIC) and total alkalinity (TA). pH, partial pressure of carbon dioxide, and aragonite saturation state are mathematically derived from TA and DIC values using temperature, salinity, and pressure data from the CTD.

pH data are the mean of a burst of 30 measurements collected every 5 minutes.

Current magnitude (meters/second) and direction (degrees) data are binned into 1-m height bins represented by the height of each bin above the sensor on the seafloor.

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: 801489
Date Effective From: 2017
Date Effective To:
Contact (Organization): NOAA Coral Reef Conservation Program (CRCP)
Address: 1305 East West Highway 10th Floor
Silver Spring, MD 20910-3281
Phone: (301) 713-3155
URL: https://coralreef.noaa.gov

Data Steward

CC ID: 801497
Date Effective From: 2018
Date Effective To:
Contact (Person): Barkley, Hannah C
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: hannah.barkley@noaa.gov

Distributor

CC ID: 801491
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

Metadata Contact

CC ID: 1076275
Date Effective From: 2021
Date Effective To:
Contact (Person): Luers, Lori H
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: lori.luers@noaa.gov

Originator

CC ID: 801494
Date Effective From: 2017
Date Effective To:
Contact (Organization): Pacific Islands Fisheries Science Center (PIFSC)
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: pifsc.info@noaa.gov
Phone: 808-725-5360
URL: https://www.pifsc.noaa.gov
Business Hours: 8:00 a.m. - 4:30 p.m.

Point of Contact

CC ID: 801496
Date Effective From: 2018
Date Effective To:
Contact (Person): Barkley, Hannah C
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: hannah.barkley@noaa.gov
View Historical Support Roles

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Description:

Aguijan, Guam, Pagan, and Maug in the Mariana Archipelago

Extent Group 1 / Geographic Area 1

CC ID: 801487
W° Bound: 144.7045
E° Bound: 145.7547
N° Bound: 20.0229
S° Bound: 13.2412
Description

Extent of diel survey sites at Aguijan, Guam, Maug, and Pagan in the Mariana Archipelago during the MARAMP cruise (HA1701) in 2017.

Extent Group 1 / Time Frame 1

CC ID: 801485
Time Frame Type: Range
Start: 2017-05-06
End: 2017-05-07
Alternate Start As Of Info: HA1701
Description:

UTC date range of diel surveys at REA site GUA-21 at Guam Island during MARAMP 2017

Extent Group 1 / Time Frame 2

CC ID: 801486
Time Frame Type: Range
Start: 2017-05-21
End: 2017-05-22
Alternate Start As Of Info: HA1701
Description:

UTC date range of diel surveys at REA site AGU-02 at Aguijan Island during MARAMP 2017.

Extent Group 1 / Time Frame 3

CC ID: 817486
Time Frame Type: Range
Start: 2017-06-10
End: 2017-06-14
Alternate Start As Of Info: HA1701
Description:

UTC date range of diel surveys at Maug during MARAMP 2017 at REA sites MAU-86, MAU-87, and MAU-88.

Extent Group 1 / Time Frame 4

CC ID: 817487
Time Frame Type: Range
Start: 2017-06-16
End: 2017-06-17
Alternate Start As Of Info: HA1701
Description:

UTC date range of diel surveys at REA site PAG-22 at Pagan island during MARAMP 2017.

Access Information

Security Class: Unclassified
Security Classification System:

Not applicable

Security Handling Description:

Not applicable

Data Access Policy:

NOAA Ecosystem Sciences Division (ESD) Data Sharing Recommendations, version 9.0 updated August 12, 2015:

ESD welcomes the opportunity to collaborate on research issues contributing to the scientific basis for better management of marine ecosystems. ESD 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 ESD principal investigators.

2) In all presentations, product releases, or publications using data generated by ESD, proper acknowledgement of both ESD 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, ESD requests that you share relevant information on complimentary data collections.

4) Those receiving data are strongly urged to inform the ESD 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, 2021: National Coral Reef Monitoring Program: Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in the Mariana Archipelago in 2017, https://www.fisheries.noaa.gov/inport/item/54927

Metadata Access Constraints:

None

Metadata Use Constraints:

None

Distribution Information

Distribution 1

CC ID: 1078147
Download URL: https://accession.nodc.noaa.gov/0186950
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2019 - Present)
File Name: ESD_NCRMP_DS_2017_CNMI
Description:

Directory folder that contains all instrument datasets as well as the summary file for the diel suite deployments at sites in the Mariana Archipelago in 2017.

Distribution 2

CC ID: 1077841
Download URL: https://accession.nodc.noaa.gov/0186950
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2019 - Present)
File Name: ESD_NCRMP_DS_2017_CNMI_ADCP
Description:

Instrument data from ADCP in the diel suite deployment in the Marianas Archipelago in 2017

File Type: csv (comma-separated values)
File Size: 1.86MB

Distribution 3

CC ID: 1077842
Download URL: https://accession.nodc.noaa.gov/0186950
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2019 - Present)
File Name: ESD_NCRMP_DS_2017_CNMI_CTD
Description:

Instrument data from CTD sensor in the diel suite deployment in the Mariana Archipelago in 2017.

File Type: csv (comma-separated values)
File Size: 25.3MB

Distribution 4

CC ID: 1077843
Download URL: https://accession.nodc.noaa.gov/0186950
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2019 - Present)
File Name: ESD_NCRMP_DS_2017_CNMI_H2O
Description:

Instrument data as well as calculated carbonate chemistry data from water samples collected with diel suite deployment in the Mariana Archipelago in 2017.

File Type: csv (comma-separated values)
File Size: 21KB

Distribution 5

CC ID: 1077844
Download URL: https://accession.nodc.noaa.gov/0186950
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2019 - Present)
File Name: ESD_NCRMP_DS_2017_CNMI_PH
Description:

Instrument data from pH sensor in the diel suite deployments in the Mariana Archipelago in 2017.

File Type: csv (comma-separated values)
File Size: 537KB

Distribution 6

CC ID: 801498
Download URL: https://accession.nodc.noaa.gov/0186950
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2019 - Present)
File Name: ESD_NCRMP_DS_2017_CNMI_SUMMARY
Description:

Summary of the diel suite deployment in 2017 with information on the cruise and specific sites, as well as instruments and sampling intervals; different instruments could be deployed at different sites or instruments could have malfunctioned.

File Type: csv (comma-separated values)
File Size: 3KB

URLs

URL 1

CC ID: 801502
URL: https://www.pifsc.noaa.gov/ecosystem_sciences/
Name: Ecosystem Sciences Division
URL Type:
Online Resource
File Resource Format: PHP
Description:

PIFSC Ecosystem Sciences Division web page

URL 2

CC ID: 801503
URL: https://www.coris.noaa.gov/monitoring/
Name: NOAA National Coral Reef Monitoring Program
URL Type:
Online Resource
Description:

Information about the NOAA National Coral Reef Monitoring Program (NCRMP) on the NOAA Coral Reef Information System website.

Technical Environment

Description:

Raw data are downloaded from the instruments, processed in R, and migrated to the PIFSC Oracle database.

Water sample data is stored in an MS Access database.

Data Quality

Representativeness:

Seawater carbonate chemistry at the benthos is dynamic and driven by physical and biological processes occurring at time scales of minutes to days. The measurements and analyses from this instrument suite is representative of the water column chemistry at the time of measurement, but this highly variable environment allows for a fairly wide distribution of measured values.

Accuracy:

Water samples: accuracy of seawater carbonate chemistry laboratory analysis is explained in detail in Dickson et al (2007), SOP #2: Determination of total dissolved inorganic carbon in sea water, and SOP #3b: Determination of total alkalinity in sea water using an open-cell titration.

Satlantic SeaFET Ocean pH sensor: measurement range: 6.5-9.0 pH; salinity range: 2-40 psu; accuracy: +/- 0.05 pH; precision: better than 0.001 pH; resolution: 0.0001 pH; stability: 0.005 pH/mo

SBE-19plus CTD sensor:

Conductivity - measurement range: 0-9 S/m; accuracy: +/- 0.0005 S/m; stability: 0.0003 S/m per month; resolution: 0.00005 S/m;

Temperature - measurement range: -5-35 deg C; accuracy: +/-0.005 deg C; stability: 0.0002 deg C per month; resolution: 0.0001 deg C;

Pressure - measurement range: 0-600 m; accuracy: +/- 0.1%; stability: +/- 0.1%; resolution: 0.002%

Nortek Acoustic Doppler Current Profiler 1MHz: Profiling range: 12-25 m; accuracy: +/- 1%

Analytical Accuracy:

For some deployments, paired water samples are collected simultaneously at the benthos and 1.5 meters above the seafloor.

Completeness Measure:

The entire suite of instrumentation is deployed during diel surveys; however, various issues can occur with any one or several of the instruments during the deployment thereby limiting the data recovered.

While PUCs are programmed to collect water on this regular sampling schedule, issues with the pumps can occasionally result in missing samples for some of the time steps.

Diel surveys at Maug in 2017 did not include all instrumentation at any of the 3 sites, and water samples were only collected at 1 of the 3 sites. Refer to the 'meta' file enclosed with the data package for details.

Field Precision:

Redundant data are collected to ensure accuracy of the methods/instrumentation. pH is captured from the discrete water samples and pH sensor. Pressure is captured by the ADCP and the CTD. Temperature is captured by the pH sensor and the CTD. For some deployments, paired water samples are collected simultaneously at the benthos and 1.5 meters above the seafloor.

Completeness Report:

All analyzed samples and measured values are included. NULL values in the data, where they exist, indicate that the observation/analysis was not conducted for the sample record where it appears.

Conceptual Consistency:

The data are very consistent, sample collection and processing protocols detailed in Dickson et al (2007) are adhered to rigorously, both in the field (SOP #1) and in the laboratory (SOP #2 and #3b).

Quality Control Procedures Employed:

The data is quality controlled by NOAA PIFSC Ecosystem Sciences Division (ESD) personnel after the data is downloaded from the instruments, after it is migrated to the database, and once again when the data are submitted to the NOAA National Centers for Environmental Information.

NOAA Pacific Marine Environmental Laboratory (PMEL) conducts quality assurance and quality control on their seawater analyses according to protocols #2 and #3b in Dickson et al (2007).

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?:

The data is captured in several locations: files stored on the cruise server during the mission and the PIFSC network, and some of the data are imported into the PIFSC Oracle database. The cruise server is regularly backed up by the cruise data manager while at sea, and the PIFSC network and Oracle database are maintained and regularly backed up by PIFSC ITS.

Lineage

Lineage Statement:

The ocean acidification diel suite is a collection of instruments deployed by SCUBA divers onto the seafloor that makes autonomous measurements and collects seawater samples. For a typical deployment, the diel suite consists of: 1 Sea Bird Electronics (SBE)-19plus CTD, 1 Nortek Acoustic Doppler Current Profiler (ADCP), 1 Satlantic SeaFET Ocean pH sensor, and up to 9 Programmable Underwater Collectors (PUCs), where each PUC collects 1 water sample at a 4-hour interval over a minimum 24-hour period. All instruments are weighted or zip-tied to rubble on the seafloor, or both, to secure the position of the instrumentation for the duration of the deployment.

Sources

Dickson, A.G., Sabine, C.L. and Christian, J.R. (Eds.) 2007. Guide to best practices for ocean CO2 measurements. PICES Special Publication 3, 191 pp.

CC ID: 829968
Publish Date: 2007-10-01
Citation URL: https://www.nodc.noaa.gov/ocads/oceans/Handbook_2007.html
Citation URL Name: Ocean Carbon Data System (OCADS), Access Data
Citation URL Description:

Guide to Best Practices for Ocean CO2 Measurements

Source Contribution:

Dickson et al (2007)

Protocols to collect, process, and analyze water samples for DIC and TA:

SOP 1: Water Sampling for the parameters of the oceanic carbon dioxide system

SOP 2: Determination of total dissolved inorganic carbon in sea water

SOP 3b: Determination of total alkalinity in sea water using an open-cell titration

SOP for instrument data processing using the R package occ

CC ID: 847048
Contact Role Type: Originator
Contact Type: Person
Contact Name: Hannah Barkley
Publish Date: 2019-05-31
Citation URL: https://rpubs.com/hbarkley/occ_SOP
Citation URL Name: RPubs
Citation URL Description:

Easy web publishing from R

Source Contribution:

Data processing protocol

Process Steps

Process Step 1

CC ID: 801512
Description:

Water samples collected with Programmable Underwater Collectors (PUC)

Developed by Dr. Chris Langdon's laboratory at the University of Miami, PUCs are computerized timers attached to a low-power peristaltic pump. An array of PUCs collects water samples at 4-hour intervals over the course of at least 24-hours, usually starting at 12:00 pm local time on day 1 and ending at 12:00 pm on day 2. While PUCs are programmed to collect water on this regular sampling schedule, issues with the pumps can occasionally result in missing samples for some of the time steps. For some deployments, paired water samples were collected simultaneously at the benthos and 1.5 meters above the seafloor.

Samples are collected underwater in tedlar bags pre-poisoned with mercuric chloride and transferred to glass bottles within a few hours of recovery. Water samples are analyzed for DIC using a coulometer (SOP #2) and for TA using a titrator (SPO #3b) by the NOAA Pacific Marine Environmental Laboratory. On occasion, poor pump performance results in half-filled sample bags. These samples are only analyzed for TA due to insufficient sample volume for DIC analysis. Full carbon system chemistry values (including pH, pCO2, and aragonite saturation state) are derived from DIC/TA and salinity/temperature/pressure data from a co-deployed CTD using the R package seacarb. Discrete sample pH data are compared to SeaFET pH data.

Process Contact: Barkley, Hannah C
Email Address: hannah.barkley@noaa.gov
Source: Dickson, A.G., Sabine, C.L. and Christian, J.R. (Eds.) 2007. Guide to best practices for ocean CO2 measurements. PICES Special Publication 3, 191 pp.

Process Step 2

CC ID: 801513
Description:

Acoustic Doppler Current Profiler (ADCP) sensor

The diel suite includes either a 1.0 MHz or a 2.0 MHz side-looking ADCP (1.0 MHz ranges 20-m depth, while the 2.0 MHz ranges 10-m). ADCP measurements are collected at 10 minute intervals and binned by height above the sensor. Each height bin is represented in the data set as the upper limit of the bin height above the sensor on the seafloor (for example, a 1.4 m bin represents current data collected between 0.4 m and 1.4 m above the ADCP). ADCP data include a blanking region, or a small distance in front of the transducer in which measurements cannot be made, of 0.2-0.4 m. Current data are grouped into 1-m height bins.

Raw data downloaded from the ADCP are processed in R using the oce package. XYZ coordinate data are converted to ENU (east-north-up) coordinate system. Current speed is calculated as the square root of the sum of the squared u and v velocities and direction as the arctan(v/u). Data are trimmed to a maximum height bin for each time step using pressure data to remove above-water signal. As a result, NULL values may exist for larger height bins above the surface of the water due to waves and tides.

Process Contact: Barkley, Hannah C
Email Address: hannah.barkley@noaa.gov

Process Step 3

CC ID: 801514
Description:

Conductivity-Temperature-Depth (CTD) sensor

CTD data are collected by a Sea Bird Electronics 19plus v2 SeaCAT every 10 seconds. Data are uploaded as HEX files, converted to CNV using SBE Data Processing Software, and converted to CSV using the 'oce' package in R.

Process Contact: Barkley, Hannah C
Email Address: hannah.barkley@noaa.gov

Process Step 4

CC ID: 801516
Description:

SeaFET pH sensor

The SeaFET pH measures in-situ pH using a solid state ISFET sensor with an AgCl external reference electrode. The electrode is conditioned in running seawater up to a week prior to deployment and stored in artificial seawater between deployments. pH data are collected in bursts of 30 measurements every 5 minutes. The SeaFET is co-deployed with a CTD, and temperature and salinity values from the CTD time series are used to correct the raw pH time series. The SeaFET derives pH from both internal and external potentiometric cells, but only external pH is reported. SeaFET pH values are compared to pH values calculated from discrete TA and DIC samples collected at the same time and location.

Process Contact: Barkley, Hannah C
Email Address: hannah.barkley@noaa.gov

Acquisition Information

Instruments

Instrument 1

CC ID: 801517
Identifier: Aquadopp Profiler
Instrument / Gear: Instrument
Instrument Type: acoustic doppler current profiler (ADCP)
Description:

Current profiler: Nortek Aquadopp Profiler 1 MHz or 2 MHz. Small and compact, with up to 25 m or 40 m current profiling range, respectively.

Instrument 2

CC ID: 801518
Identifier: Programmable Underwater Collector (PUC)
Instrument / Gear: Instrument
Instrument Type: Water Sampler
Description:

Programmable Underwater Collectors (PUC) are computerized timers attached to a low-power peristaltic pump to collect water samples at episodic intervals (i.e., every 4 hrs over a 24-hr period). Designed and Developed by Dr. Chris Langdon’s laboratory at the University of Miami, Rosenstiel School of Marine and Atmospheric Science.

Instrument 3

CC ID: 801519
Identifier: SBE 19plus V2
Docucomp UUID: d834d7e0-70dd-11e0-a1f0-0800200c9a66
Instrument / Gear: Instrument
Instrument Type: conductivity, temperature, depth
Description:

The SBE 19plus V2 (Version 2) SEACAT Profiler measures conductivity, temperature, and pressure (depth) and provides high accuracy and resolution, reliability, and ease-of-use for a wide range of research, monitoring, and engineering applications. The pump-controlled, TC-ducted flow configuration minimizes salinity spiking caused by ship heave and allows for slow descent rates without slowing sensor responses, improving dynamic accuracy and resolving small scale structure in the water column.

Instrument 4

CC ID: 801521
Identifier: SeaFET v2
Instrument / Gear: Instrument
Instrument Type: Ocean pH Sensor
Description:

SeaFET v2 Ocean pH Sensor measures in-situ pH using a solid state ISFET sensor with an AgCl external reference electrode.

Platforms

Platform 1

CC ID: 801522
Identifier: Diel Suite
Description:

The Ocean Acidification Diel Suite is not a physical platform (boat, buoy, etc.), but rather a collection of instruments deployed together on the seafloor that makes autonomous measurements and collects seawater samples, which allows for the quantification of 24-hr variability in seawater carbonate chemistry present at the reef.

Mounted Instrument 1

Identifier: Aquadopp Profiler

Mounted Instrument 2

Identifier: Programmable Underwater Collector (PUC)

Mounted Instrument 3

Identifier: SBE 19plus V2

Mounted Instrument 4

Identifier: SeaFET v2

Catalog Details

Catalog Item ID: 54927
GUID: gov.noaa.nmfs.inport:54927
Metadata Record Created By: Annette M DesRochers
Metadata Record Created: 2018-11-23 20:19+0000
Metadata Record Last Modified By: Sarah Kunkel
Metadata Record Last Modified: 2022-10-21 02:44+0000
Metadata Record Published: 2021-08-06
Owner Org: PIFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-08-06
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-08-06