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Water chemistry at coral reef sites in Timor-Leste from discrete surface and bottom water samples collected in 2013 and 2014

Published by Pacific Islands Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 02, 2026 at 11:22 PM | Dataset Last Updated: January 01, 2017 at 12:00 AM
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 from 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 samples were processed by CREP and sent to NOAA Pacific Marine Environmental Laboratory (PMEL) 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. The water chemistry data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive.

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Numeric Data Sets > Water Quality 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

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describedByType application/octet-steam
description 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 from 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 samples were processed by CREP and sent to NOAA Pacific Marine Environmental Laboratory (PMEL) 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. The water chemistry data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive.
distribution 
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    "title": "PMEL_2010_SOP_DICandTA.pdf",
    "accessURL": "https://accession.nodc.noaa.gov/0157633",
    "mediaType": "text/html",
    "description": "Discrete water sample collection protocol,  established by the NOAA Pacific Marine Environmental Laboratory (PMEL).",
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    "@type": "dcat:Distribution",
    "title": "ESD_H2O_2013-2014_TimorLeste.csv",
    "accessURL": "https://accession.nodc.noaa.gov/0168915",
    "mediaType": "text/html",
    "description": "Water chemistry data from water samples collected by the NOAA Coral Reef Ecosystem Program at sites in Timor-Leste from 2013 to 2014. Updated in October 2021 to amend data.",
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identifier https://data.noaa.gov/waf/NOAA/nmfs/pifsc/iso/xml/46163.xml
issued 2017-01-01T00:00:00.000+00:00
keyword 
[
  "Numeric Data Sets > Water Quality",
  "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",
  "ARAGONITE SATURATION STATE",
  "DEPTH - OBSERVATION",
  "DISSOLVED INORGANIC CARBON (DIC)",
  "SALINITY",
  "WATER TEMPERATURE",
  "pH",
  "partial pressure of carbon dioxide - water",
  "total alkalinity",
  "water chemistry",
  "CORAL REEF STUDIES",
  "Coral Triangle Initiative",
  "US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division; Coral Reef Ecosystem Program",
  "COUNTRY/TERRITORY > Democratic Republic of Timor-Leste (East Timor) (09S126E0001)",
  "OCEAN BASIN > Indian Ocean > Timor Sea > Democratic Republic of Timor-Leste (East Timor) (09S126E0001)",
  "Indian Ocean",
  "Timor Sea",
  "CRED",
  "CREP",
  "Coral Reef Ecosystem Division",
  "Coral Reef Ecosystem Program",
  "DIC",
  "PIFSC",
  "Pacific Islands Fisheries Science Center",
  "TA",
  "USAID",
  "United States Agency for International Development",
  "pCO2",
  "Atauro",
  "Baucau",
  "Bobonaro",
  "Dili",
  "Lautem",
  "Manatuto",
  "Oecusse",
  "Timor-Leste",
  "Vila MPA",
  "DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
  "Timor Leste"
]
landingPage https://www.fisheries.noaa.gov/inport/item/46163
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2017-01-01T00:00:00.000+00:00
publisher 
{
  "name": "Pacific Islands Fisheries Science Center",
  "@type": "org:Organization"
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rights otherRestrictions, unclassified
spatial 127.31222,-9.19571,124.36833,-8.15301
temporal 2013-06-06T00:00:00+00:00/2013-06-27T00:00:00+00:00
theme 
[
  "geospatial"
]
title Water chemistry at coral reef sites in Timor-Leste from discrete surface and bottom water samples collected in 2013 and 2014

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