Water chemistry at coral reef sites in Timor-Leste from discrete surface and bottom water samples collected from 2013-06-06 to 2014-10-06. (NCEI Accession 0168915)

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The water chemistry data described here are from discrete water samples collected by the NOAA Coral Reef Ecosystem Program (CREP) in 2013 and 2014 to assess the seawater carbonate systems primarily at fixed climate survey sites located in coral reef habitats in Timor-Leste. Climate sites were established by CREP to establish ecological baselines for climate change by measuring multiple features of the coral reef environment (in addition to the data described herein) over time. Water chemistry data for both 2013 and 2014 is only available for a subset of the established climate survey sites (5 of the 8 sites). In 2013, water samples were collected at a few random sites in addition to the samples collected at the climate survey sites.

SCUBA divers collected two discrete water samples from each site; one at the reef and one at the surface directly above the reef. In 2013 only, surface water samples were also collected ~1 km offshore from the survey site. The water samples were processed by CREP and sent to NOAA Pacific Marine Environmental Laboratory (PMEL) In Seattle, WA to be analyzed for total alkalinity (TA) and dissolved inorganic carbon (DIC). From these constituents, alongside temperature, salinity, and depth data, other parameters of the seawater carbonate system were calculated, including pH, partial pressure of carbon dioxide, and aragonite saturation state.

Laboratory experiments reveal calcification rates of crustose coralline algae (CCA) are strongly correlated to seawater aragonite saturation state. Predictions of reduced coral calcification rates, due to ocean acidification, suggest that coral reef communities will undergo ecological phase shifts as calcifying organisms are negatively impacted by changing seawater chemistry. These water chemistry data for Timor-Leste, along with other data collected at the climate survey sites (water temperature, calcification rates, invertebrate biodiversity, and benthic cover, all archived separately), can be used to help scientists assess and understand how Timor-Leste's coral reefs are responding to ocean acidification.
  • Cite as: Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2018). Water chemistry at coral reef sites in Timor-Leste from discrete surface and bottom water samples collected from 2013-06-06 to 2014-10-06. (NCEI Accession 0168915). Version 1.1. NOAA National Centers for Environmental Information. Dataset. [access date]
gov.noaa.nodc:0168915
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Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact Information Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Time Period 2013-06-06 to 2014-10-06
Spatial Bounding Box Coordinates
N: -8.15301
S: -9.19571
E: 127.312
W: 124.368
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2018-01-06
Edition 1.1
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency As needed
Supplemental Information
Submission Package ID: UYDE5H
Purpose In 2011, NOAA and the United States Agency for International Development (USAID) Timor-Leste Mission formed a 5-year bi-lateral partnership agreement from 2012 to 2016, in support of the Government of Timor-Leste—particularly the Ministry of Agriculture and Fisheries (MAF)—by addressing significant information gaps in their nearshore marine ecosystems. Specifically, MAF asked NOAA to address the following questions: 1.Where are the nearshore marine resources? 2.What are the nearshore marine resources? 3.How are they changing over time and what threats are potentially causing these changes? 4.What approaches are needed to manage and conserve the nearshore marine resources? With financial support from USAID and in-kind support from the NOAA Coral Reef Conservation Program (CRCP), the NOAA Coral Reef Ecosystem Program (CREP) conducted baseline ecosystem assessment surveys to inform ecosystem-based management planning in Timor-Leste. The primary activities conducted by NOAA to answer these questions included: 1.satellite mapping of nearshore habitats, 2.conducting coral reef ecosystem assessments, 3.establishing ecological baselines for climate change, and 4.building management capacity by developing a spatial data framework The water chemistry data described herein resulted from the third activity to establish ecological baselines for climate change. As the survey methods described and used herein are also implemented as part of the NOAA Pacific Reef Assessment and Monitoring Program (Pacific RAMP)—an ecosystem-scale interdisciplinary coral reef monitoring program—the data from Timor-Leste are directly comparable to and informed by data collected by NOAA-CREP throughout the U.S. Pacific Islands and Territories. Furthermore, the methods used for establishing ecological baselines for climate change in Timor-Leste (Chapter 4) are being adopted and implemented at 21 sites across eight member states of the Intergovernmental Oceanographic Commission within the Western Pacific (WESTPAC) region. These data provide a foundation for comparing the ecological baselines under current and future stresses associated with climate change in the Coral Triangle region.
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  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2018). Water chemistry at coral reef sites in Timor-Leste from discrete surface and bottom water samples collected from 2013-06-06 to 2014-10-06. (NCEI Accession 0168915). Version 1.1. NOAA National Centers for Environmental Information. Dataset. [access date]
Cited Authors
Principal Investigators
  • Thomas Oliver
    US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division; Coral Reef Ecosystem Program (Coral Reef Ecosystems Program - CREP)
Contributors
Resource Providers
Points of Contact
  • Kevin Trick
    US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division; Coral Reef Ecosystem Program (Coral Reef Ecosystems Program - CREP)
Publishers
Acknowledgments
  • Related Funding Agency: US DOS; United States Agency for International Development
  • Related Funding Agency: US DOC; NOAA; NOS; Coral Reef Conservation Program
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
CoRIS Discovery Thesaurus
  • Numeric Data Sets > Water Quality
CoRIS Theme Thesaurus
  • EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat
  • EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment
  • EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Baseline studies
  • EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Chemical
  • EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Physical
  • EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Alkalinity
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Carbon Dioxide > Partial Pressure
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Carbonate Chemistry
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Chemistry Monitoring and Assessment
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Dissolved Gases
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Inorganic Carbon
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Ocean Acidification
  • EARTH SCIENCE > Oceans > Ocean Chemistry > pH
  • EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature
  • EARTH SCIENCE > Oceans > Salinity/Density > Salinity
Global Change Master Directory (GCMD) Science and Services Keywords
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBONATE
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH
  • EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
  • EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
Submitter Provided Keywords
  • DIC
  • TA
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce
NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Contributing Data Centers
  • CRED
  • CREP
  • Coral Reef Ecosystem Division
  • Coral Reef Ecosystem Program
  • PIFSC
  • Pacific Islands Fisheries Science Center
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
  • COULOMETERS
  • CTD > Conductivity, Temperature, Depth
  • NISKIN BOTTLES
  • TEMPERATURE SENSORS
Submitter Provided Instrument Keywords
  • SOMMA
  • Single Operator Multi-parameter Metabolic Analyzer
Place keywords NODC SEA AREA NAMES THESAURUS CoRIS Place Thesaurus
  • COUNTRY/TERRITORY > Democratic Republic of Timor-Leste (East Timor) (09S126E0001)
  • OCEAN BASIN > Indian Ocean > Timor Sea > Democratic Republic of Timor-Leste (East Timor) (09S126E0001)
Global Change Master Directory (GCMD) Location Keywords
  • OCEAN > INDIAN OCEAN
  • OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > SOUTH CHINA AND EASTERN ARCHIPELAGIC SEAS
Submitter Provided Place Keywords
  • Atauro
  • Baucau
  • Bobonaro
  • Dili
  • Lautem
  • Manatuto
  • Oecusse
  • Timor-Leste
  • Vila MPA
Project keywords NODC PROJECT NAMES THESAURUS Related Projects
  • Coral Triangle Initiative
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2018). Water chemistry at coral reef sites in Timor-Leste from discrete surface and bottom water samples collected from 2013-06-06 to 2014-10-06. (NCEI Accession 0168915). Version 1.1. NOAA National Centers for Environmental Information. Dataset. [access date]
Access Constraints
  • NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
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Lineage information for: dataset
Processing Steps
  • 2018-01-06T01:45:08 - NCEI Accession 0168915 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: DISSOLVED INORGANIC CARBON (DIC) (measured); Units: micromole/kilogram; Observation Category: laboratory analysis; Sampling Instrument: Niskin bottle.
  • Parameter or Variable: total alkalinity (measured); Units: micromole/kilogram; Observation Category: laboratory analysis; Sampling Instrument: Niskin bottle.
  • Parameter or Variable: SALINITY (measured); Units: psu; Observation Category: laboratory analysis; Sampling Instrument: Niskin bottle.
  • Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: Seabird SBE-39 (2013) and SBE-19plus CTD (2014).
  • Parameter or Variable: DEPTH - OBSERVATION (measured); Units: meter; Observation Category: in situ; Sampling Instrument: CTD or Dive Computer.
  • Parameter or Variable: ARAGONITE SATURATION STATE (calculated); Units: unitless; Observation Category: laboratory analysis; Sampling Instrument: Niskin bottle.
  • Parameter or Variable: partial pressure of carbon dioxide - water (calculated); Units: micro-atmosphere; Observation Category: laboratory analysis; Sampling Instrument: Niskin bottle.
  • Parameter or Variable: pH (calculated); Units: unitless; Observation Category: laboratory analysis; Sampling Instrument: Niskin bottle.
Acquisition Information (collection)
Instrument
  • Coulometer for DIC measurement
  • CTD
  • Niskin bottle
  • Temperature Sensors
  • titrator
Last Modified: 2018-05-08T14:45:34
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