Short Citation:
Pacific Islands Fisheries Science Center, 2019: Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in Batangas, Philippines from May 21-31, 2015, https://inport.nmfs.noaa.gov/inport/item/45954.

Item Identification

Title: Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in Batangas, Philippines from May 21-31, 2015
Short Name: Philippines: diel surveys
Status: Completed
Publication Date: 2017
Abstract:

The data provided in this data set are from diel surveys conducted by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD)---formerly the Coral Reef Ecosystem Division---in the Philippines from May 21-31, 2015. The ocean acidification diel suite is an autonomous instrument package that measures diel variability in coral reef seawater carbonate chemistry. These diel suites were deployed on hard-bottom shallow-water (< 15 m) habitats at fixed climate survey sites located within coral reef ecosystems.

The diel suites were deployed on the reef for at least 24 hours to measure in-situ salinity, temperature, pressure, pH, current direction and magnitude, and dissolved oxygen. 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 consisted of: 1 SBE-19plus CTD sensor, 1 Nortek Acoustic Doppler Current Profiler (ADCP), 1 Satlantic SeaFET Ocean pH sensor, 1 SBE 43 dissolved oxygen sensor co-located with the CTD, 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.

Purpose:

ESD's manual seawater sampling and other 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.

The Ecosystem Sciences Division (ESD) at NOAA Fisheries is conducting in-situ climate monitoring across the U.S. Pacific Islands Region. Climate monitoring 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 and community structure to understand the impacts of thermal stress and ocean acidification on the ecosystem. This particular dataset for the Philippines is part of a 3-year project ("Climate, Biodiversity and Fisheries in the Coral Triangle: Embracing the E in Ecosystem Approaches to Fisheries Management") implemented by ESD. This project was funded by NOAA's Coral Reef Conservation Program (CRCP) and the U.S. Agency for International Development (USAID) Regional Development Mission Asia (RDMA) as part of the U.S. Coral Triangle Initiative, with additional support from the Coral Triangle Support Partnership and USAID Philippines. The goal of the project was to build on ESD's expertise to provide tools and information about climate change, ocean acidification, and their impacts on biodiversity and fisheries that could inform and be incorporated into an Ecosystem Approach to Fisheries Management (EAFM) for the Philippines. ESD worked with local governments, communities, and NGOs to build science capacity by establishing robust observing capabilities and providing hands-on training to initiate collection of climate science information for the Verde Island Passage in the Philippines that can be used toward adaptive EAFM.

Supplemental Information:

ESD traveled to the Verde Island Passage region of the Philippines in 2012 to deploy moored oceanographic (subsurface temperature recorders [STRs]) and ecological (calcification accretion units [CAUs] and autonomous reef monitoring structures [ARMS]) instrumentation, to collect surface and bottom water samples, and to conduct benthic photo-quadrat surveys, which included the collection of benthic images; in 2013 to collect additional water samples; and again in 2015 to recover the instrumentation and to collect another round of water samples and benthic images and to conduct diel surveys. All activities were conducted by SCUBA divers at five locations in the municipalities of Mabini and Tingloy, including Batong Buhay, Koala Reserve Area, Arthur's Reef, Twin Rocks, and Batalang Bato. At each of the five locations, a shallow and deep survey site was established for a total of 10 survey sites.

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
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Baseline studies
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 > 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 > Oxygen
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 > Ocean Temperature > Water Temperature > Bottom
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 483
CRCP Project Climate, Biodiversity and Fisheries in the Coral Triangle: Embracing the E in Ecosystem Approaches to Fisheries Management
ISO 19115 Topic Category 014
ISO 19115 Topic Category oceans
NODC DATA TYPES THESAURUS ARAGONITE SATURATION STATE
NODC DATA TYPES THESAURUS CONDUCTIVITY
NODC DATA TYPES THESAURUS CURRENT METER - DIRECTION
NODC DATA TYPES THESAURUS CURRENT METER - SPEED
NODC DATA TYPES THESAURUS DEPTH - SENSOR
NODC DATA TYPES THESAURUS DISSOLVED INORGANIC CARBON (DIC)
NODC DATA TYPES THESAURUS DISSOLVED OXYGEN
NODC DATA TYPES THESAURUS HYDROSTATIC PRESSURE
NODC DATA TYPES THESAURUS partial pressure of carbon dioxide - water
NODC DATA TYPES THESAURUS pH
NODC DATA TYPES THESAURUS SALINITY
NODC DATA TYPES THESAURUS SIGMA-T
NODC DATA TYPES THESAURUS total alkalinity
NODC DATA TYPES THESAURUS WATER TEMPERATURE
NODC INSTRUMENT TYPES THESAURUS ADCP
NODC INSTRUMENT TYPES THESAURUS Coulometer for DIC measurement
NODC INSTRUMENT TYPES THESAURUS CTD - moored CTD
NODC INSTRUMENT TYPES THESAURUS oxygen meter
NODC INSTRUMENT TYPES THESAURUS pH sensors
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 laboratory analyses
NODC OBSERVATION TYPES THESAURUS physical
NODC OBSERVATION TYPES THESAURUS time series profile
NODC OBSERVATION TYPES THESAURUS water chemistry
NODC PROJECT NAMES THESAURUS Coral Reef Conservation Program
NODC PROJECT NAMES THESAURUS CORAL REEF STUDIES
NODC PROJECT NAMES THESAURUS Coral Triangle Initiative
NODC SUBMITTING INSTITUTION NAMES THESAURUS US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division
None Acoustic Doppler Current Profiler
None ADCP
None conductivity temperature depth
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 Ocean pH
None Pacific Islands Fisheries Science Center
None PIFSC
None Programmable Underwater Collector
None PUC
None United States Agency for International Development
None USAID
None water samples

Temporal Keywords

Thesaurus Keyword
None diel

Spatial Keywords

Thesaurus Keyword
CoRIS Place Thesaurus COUNTRY/TERRITORY > Philippines > Batangas > Mabini (13N120E0032)
CoRIS Place Thesaurus COUNTRY/TERRITORY > Philippines > Batangas > Tingloy (13N120E0009)
CoRIS Place Thesaurus COUNTRY/TERRITORY > Philippines > Batangas > Twin Rocks Sanctuary (13N120E0005)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > South China Sea > Balayan Bay > Mabini (13N120E0032)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > South China Sea > Balayan Bay > Twin Rocks Sanctuary (13N120E0005)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > South China Sea > Maricaban Island > Tingloy (13N120E0009)
NODC SEA AREA NAMES THESAURUS NW Pacific (limit-180)
None Batalang Bato
None Batong Buhay
None Philippines
None Twin Rocks
None Verde Island Passage

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

CTD data include conductivity, temperature, and pressure observations with calculated depth, salinity, and density. Dissolved oxygen is included.

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 and the United States Agency for International Development
Instrument (Deprecated): SBE-19plus CTD, Nortek 2.0 MHz Acoustic Doppler Current Profiler, Satlantic SeaFET Ocean pH sensor, and SBE 43 dissolved oxygen sensor (part of diurnal suite)
Platform (Deprecated): Not applicable
Physical Collection / Fishing Gear (Deprecated): PUC, Programmable Underwater Collectors (part of diurnal suite)

Support Roles

Data Set Credit

CC ID: 566692
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: 566689
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: 566690
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: 566660
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

Originator

CC ID: 566691
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: 855167
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

Point of Contact

CC ID: 566658
Date Effective From: 2015
Date Effective To: 2017
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:

Mabini and Tingloy in Batangas, Philippines

Extent Group 1 / Geographic Area 1

CC ID: 566694
W° Bound: 120.8837
E° Bound: 120.895127
N° Bound: 13.727882
S° Bound: 13.658594
Description

Diel survey locations in the municipalities of Mabini and Tingloy in Batangas, Philippines (near the Verde Island Passage), including Batong Buhay, Twin Rocks, and Batalang Bato.

Extent Group 1 / Time Frame 1

CC ID: 566695
Time Frame Type: Range
Start: 2015-05-21
End: 2015-05-31
Alternate Start As Of Info: MP1507
Description:

Time period of diel surveys.

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 acknowledgment:

"This publication makes use of data products gathered 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 and the United States Agency for International Development. 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:

These oceanographic data are PRELIMINARY data and have not been screened for accuracy. NOAA can not be held liable for use of these data in a manner other than for perusal of preliminary oceanographic data for scientific research on coral reefs ecosystems.

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

Suggested citation:

Ecosystem Sciences Division; Pacific Islands Fisheries Science Center, 2019: Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in Batangas, Philippines from May 21-31, 2015, https://inport.nmfs.noaa.gov/inport/item/45954.

Metadata Access Constraints:

None

Metadata Use Constraints:

None

Distribution Information

Distribution 1

CC ID: 567041
Download URL: http://accession.nodc.noaa.gov/0189727
Distributor: National Centers for Environmental Information - Silver Spring, Maryland (NCEI-MD) (2019 - Present)
File Name: 2015_Philippines_diel.zip
Description:

Zip file includes data collected during diel surveys at five select sites in the Philippines in 2015 by the PIFSC Ecosystem Sciences Division.

Data are organized into REA site folders, and each folder contains a separate CSV file for each dataset collected at that site as indicated in the 'meta' file included in the zipped package. Instrument data include ADCP, CTD and pH, and discrete water samples were collected for carbonate chemistry analysis. Refer to the 'meta' file for details.

File Date/Time: 2019-05-31 00:00:00
File Type: zip file

URLs

URL 1

CC ID: 566664
URL: https://www.fisheries.noaa.gov/pacific-islands/ecosystems/surveying-vast-ocean
Name: Ecosystem Sciences
URL Type:
Online Resource
Description:

Pacific Islands Fisheries Science Center website

URL 2

CC ID: 566724
URL: https://pifscblog.wordpress.com/2013/03/06/verde-island-passage/
Name: Blog post: 2013 field mission to the Philippines
URL Type:
Online Resource
Description:

NOAA PIFSC Coral Reef Ecosystem Program blog post from the 2013 mission to the Philippines.

URL 3

CC ID: 566727
URL: http://www.coraltriangleinitiative.org
Name: Coral Triangle Initiative
URL Type:
Online Resource
Description:

Official 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%

SBE 43 oxygen sensor: Measurement range: 120% surface saturation; accuracy: +/- 2% of saturation; stability: 0.5% per 1000 hours

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

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.

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.

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?:

NOAA IRC and NOAA Fisheries ITS resources and assets.

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, 1 SBE 43 dissolved oxygen 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: 566668
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: 847047
Contact Role Type: Originator
Contact Type: Person
Contact Name: Hannah Barkley
Publish Date: 2019-05-31
Citation URL: http://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: 566669
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.

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. 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: 566670
Description:

Acoustic Doppler Current Profiler (ADCP) sensor

The diel suite includes either a side-looking ADCP. 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: 566671
Description:

Conductivity-Temperature-Depth (CTD) sensor

CTD data are collected by a Sea Bird Electronics 19plus v2 SeaCAT every 10 minutes. 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
Non-InPort Process Contact (Deprecated): NOAA Pacific Marine Environmental Laboratory (PMEL)

Process Step 4

CC ID: 847045
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

Process Step 5

CC ID: 847046
Description:

Dissolved oxygen sensor

An SBE-43 dissolved oxygen sensor is co-located with the SBE-19plus CTD.

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

Acquisition Information

Instruments

Instrument 1

CC ID: 846669
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: 846670
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: 846671
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: 846686
Identifier: SBE 43 DO Sensor
Instrument / Gear: Instrument
Instrument Type: Dissolved Oxygen Sensor
Description:

The SBE 43 is an individually calibrated, high-accuracy oxygen sensor to assist in critical hypoxia and ocean stoichiometric oxygen chemistry research on a variety of profiling and moored platforms. The SBE 43 is designed for use in a CTD’s pumped flow path, providing optimal correlation with CTD measurements. Elapsed time between the CTD and associated oxygen measurement is easily quantified, and corrected for, in post-processing. The black plenum and plumbing’s black tubing blocks light, reducing in-situ algal growth. Plumbing isolates the SBE 43 from continuous exposure to the external environment, allowing trapped water to go anoxic and minimizing electrolyte consumption between samples for moored deployments.

Instrument 5

CC ID: 846672
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: 846676
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: SBE 43 DO Sensor

Mounted Instrument 5

Identifier: SeaFET v2

Child Items

Rubric scores updated every 15m

Type Title
Entity (ENT) DielSurvey_Entity_ADCP
Entity (ENT) DielSurvey_Entity_CTD
Entity (ENT) DielSurvey_Entity_Meta
Entity (ENT) DielSurvey_Entity_WaterSample
Entity (ENT) DielSurvey_Entity_pH

Catalog Details

Catalog Item ID: 45954
Metadata Record Created By: Annette M DesRochers
Metadata Record Created: 2017-05-02 20:29+0000
Metadata Record Last Modified By: Annette M DesRochers
Metadata Record Last Modified: 2019-06-07 23:24+0000
Metadata Record Published: 2019-05-31
Owner Org: PIFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2020-05-31