gov.noaa.nmfs.inport:68094 eng UTF8 dataset CSV Files Pacific Islands Fisheries Science Center 808-725-5300 1845 Wasp Blvd. Honolulu HI 96818 USA https://www.pifsc.noaa.gov WWW:LINK-1.0-http--link Website Website for this organization information 8:00 a.m. - 4:30 p.m. resourceProvider Luers, Lori H 1845 Wasp Blvd. Honolulu HI 96818 USA lori.luers@noaa.gov pointOfContact 2026-03-04T19:17:17 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) Shallow Water Conductivity-Temperature-Depth (CTD) Profiles along a water quality gradient in Aua, American Samoa from 2022-09-13 to 2022-09-23 LBSP: CTD Aua 2022 creation 2023 publication NOAA/NMFS/EDM 68094 https://www.fisheries.noaa.gov/inport/item/68094 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Pacific Islands Fisheries Science Center 808-725-5360 1845 Wasp Blvd. Honolulu HI 96818 USA pifsc.info@noaa.gov https://www.pifsc.noaa.gov WWW:LINK-1.0-http--link Pacific Islands Fisheries Science Center Website Pacific Island Fisheries Science Center homepage information 8:00 a.m. - 4:30 p.m. originator https://coralreef.noaa.gov/issues/lbsp.html WWW:LINK-1.0-http--link NOAA CRCP Land-based Sources of Pollution NOAA CRCP page 'Reduce Land-Based Sources of Pollution'; includes other related links download https://www.fisheries.noaa.gov/region/pacific-islands#science WWW:LINK-1.0-http--link PIFSC website Overview of research and programs at the Pacific Islands Fisheries Science Center (PIFSC) download tableDigital This metadata record describes the data collected from near-shore shallow water Conductivity-Temperature-Depth (CTD) casts conducted in Aua Reef, American Samoa, by scientists of the Ecosystem Sciences Division (ESD) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) from September 13 - 23, 2022. For this fly-in mission (MP2206), the NOAA Fisheries, Ecosystem Sciences Division established 18 survey sites along the water quality gradient near land-based source pollution. This is part of a larger collection of datasets collected as part of the CRCP-funded project 'Linking watershed management activities to reef health in American Samoa' (Project #31303). The CTD casts provide vertical profiles (5-m max depth, downcast only) of water column conductivity, temperature, and pressure (Sea-Bird Electronics, SBE19-plus), with calculated depth, salinity, and water density. The CTD cast was conducted by snorkel. The CTD soaked at the surface for 1 minute to cycle water through the instrument and tubing. Afterward, data were collected by lowering the CTD in profiling mode at an even pace (descent rate ~0.5 to 0.75 meters per second) to a maximum depth of 5 m. The focal point of this project was to establish a comprehensive biological, water quality, and carbonate chemistry baseline for Aua reef. This work aims at identifying measurable spatial differences in the structure and composition of the benthic and coral community at Aua that can be explained by measurable spatial patterns of water quality (nutrients and sediments) and water carbonate chemistry (pH and Alkalinity). This work is of fundamental importance for the development of the Aua Watershed Management Plan, and will enable Federal and jurisdictional resource managers to more effectively assess the effectiveness of watershed management actions reducing land-based pollution and impacts to the adjacent coral reef ecosystems. NOAA Fisheries, PIFSC Ecosystem Sciences Division and partners, and funded by the NOAA Coral Reef Conservation Program completed Smith, Joy 1845 Wasp Blvd. Bldg 176 Honolulu HI 96818 USA joy.smith@noaa.gov pointOfContact Smith, Joy 1845 Wasp Blvd. Bldg 176 Honolulu HI 96818 USA joy.smith@noaa.gov custodian asNeeded DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 17.0 EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY > CONDUCTIVITY PROFILES EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > OCEAN SALINITY > OCEAN SALINITY PROFILES theme Global Change Master Directory (GCMD) Science Keywords 17.0 OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA place Global Change Master Directory (GCMD) Location Keywords 20.8 CTD > Conductivity, Temperature, Depth instrument Global Change Master Directory (GCMD) Instrument Keywords 17.2 31303 Linking watershed management activities to reef health in American Samoa theme CRCP Project Numeric Data Sets > Oceanography theme CoRIS Discovery 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 > In Situ Physical EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs EARTH SCIENCE > Oceans > Ocean Pressure > Sea Level Pressure EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature EARTH SCIENCE > Oceans > Salinity/Density > Conductivity EARTH SCIENCE > Oceans > Salinity/Density > Density EARTH SCIENCE > Oceans > Salinity/Density > Salinity theme CoRIS Theme Thesaurus CONDUCTIVITY DEPTH - SENSOR PRESSURE - WATER [HYDROSTATIC PRESSURE] SALINITY SIGMA-T theme NODC DATA TYPES THESAURUS WATER TEMPERATURE theme NODC DATA TYPES THESAURUS in situ physical profile theme NODC OBSERVATION TYPES THESAURUS CORAL REEF STUDIES Coral Reef Conservation Program theme NODC PROJECT NAMES THESAURUS US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division theme NODC SUBMITTING INSTITUTION NAMES THESAURUS COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016) OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000) OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016) place CoRIS Place Thesaurus South Pacific Ocean place NODC SEA AREA NAMES THESAURUS CTD instrument NODC INSTRUMENT TYPES THESAURUS CHARTERED VESSEL platform NODC PLATFORM NAMES THESAURUS CRED CREP Climate Change Coral Reef Ecosystem Division Coral Reef Ecosystem Program ESD Ecosystem Sciences Division LBSP PIFSC Pacific Islands Fisheries Science Center land-based source pollution theme AMSM American Samoa place DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian LBSP project InPort otherRestrictions Cite As: Pacific Islands Fisheries Science Center, [Date of Access]: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles along a water quality gradient in Aua, American Samoa from 2022-09-13 to 2022-09-23 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/68094. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions Use Constraints: Please cite PIFSC Ecosystem Sciences Division (ESD) when using the data. Suggested Citation: Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, 2023: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles along a water quality gradient in Aua, American Samoa from 2022-09-13 to 2022-09-23, https://www.fisheries.noaa.gov/inport/item/68094. otherRestrictions 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. unclassified Not applicable Not applicable Benthic surveys along a water quality gradient in Aua, American Samoa: benthic cover derived from analysis of benthic images collected in 2022 NOAA/NMFS/EDM 67996 crossReference Benthic surveys along a water quality gradient in Aua, American Samoa: benthic images collected during belt transect surveys in 2022 NOAA/NMFS/EDM 67994 crossReference Benthic surveys along a water quality gradient in Aua, American Samoa: comprehensive assessment of coral demography (adult and juvenile corals) from belt transect surveys in 2022 NOAA/NMFS/EDM 67995 crossReference Effects of water quality on non-coral communities: surveys of macroinvertebrates, benthic microalgae, and benthic foraminifera at sites along a water quality gradient in Aua, American Samoa in 2022 NOAA/NMFS/EDM 68092 crossReference Nutrient and water chemistry data of Aua Reef in American Samoa from samples collected along a water quality gradient between 2022-09-13 to 2022-09-23 NOAA/NMFS/EDM 68095 crossReference NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 68094 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/pifsc/dmp/pdf/68094.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US oceans Raw CTD profile data are downloaded from the RBR and saved as .CSV files. Extent of CTD data collected in Aua Reef via snorkeling during fly-in mission MP2206 (scientists flew into American Samoa conducted surveys) -170.669 -170.665 -14.2881 -14.2717 Extent of CTD casts in Aua reef, American Samoa in 2022. Time frame over which CTD casts which were conducted at 18 survey sites along a water quality gradient off of Aua, American Samoa 2022-09-13 2022-09-23 This project builds on prior baseline and status and trends assessments conducted in 2012, 2015, and 2020 in Faga'alu Bay (U.S. Task Force watershed priority site) and Vatia (Territorial priority watershed) to address National and Jurisdictional goals to reduce land-based sources of pollution impacts in coral reef ecosystems. This baseline assessment for land-based sources of pollution on Aua reef is part of a larger CRCP-funded project ID 31303: "Linking watershed management activities to reef health in American Samoa". Water samples were collected alongside the CTD casts as part of this baseline assessment for the analysis of particulate and dissolved nutrients, total suspended solids, chlorophyll-a, and seawater pH and Alkalinity. Coral demographic, benthic cover, and non-coral community data was also collected as part of this project. These data are documented and archived separately. false eng false Spreadsheet ESD_LBSP_CTD_DataDictionary_Aua_2022 2023-05-17 publication CSV - Comma Separated Values (Text) NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact WWW:LINK-1.0-http--link NCEI Contact Information Information for contacts at NCEI. information distributor https://www.ncei.noaa.gov/archive/accession/0278377 WWW:LINK-1.0-http--link ESD_LBSP_CTD_AUA_2022.csv Shallow CTD profiles collected at 18 sites in Aua, American Samoa from September 13th-23rd, 2022 across a water quality gradient by the PIFSC Ecosystem Sciences Division. Data include conductivity, temperature, pressure, depth, salinity, and density. download dataset Accuracy 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% Completeness Report Obviously erroneous data have been removed from the final dataset. Missing values are indicated with a blank. Conceptual Consistency The same methods of data collection are used each time a CTD cast is conducted. Conductivity, temperature, pressure, depth, salinity, and density are routinely included in the observation dataset. Following a 1 minute soak, CTDs are usually deployed 5-10 feet above the reef at depths ranging from 0-5 m at 18 sites along the water quality gradient in Aua, American Samoa established by the NOAA Fisheries, Ecosystem Sciences Division. Sites were selected randomly along a water quality gradient established by local knowledge. RBRconcerto3 CTD casts were manually collected via a snorkeler. The CTD was held just under the surface (~1m) for 1 minute to cycle water through the instrument and tubing. Afterwards, the CTD was slowly swam down to the reef benthos by the snorkeler. CTD was set in profiler mode and the descent rate was ~0.5 to 0.75 meters per second) to a depth right above the reef (maximum depth of 5m). Once the target depth is reached, the CTD is immediately pulled back on board. A GPS waypoint is taken at the beginning of the cast to mark the position and time. Smith, Joy joy.smith@noaa.gov processor Raw profile data are downloaded from the CTD and saved as .CSV files. Profiles are then trimmed to downcast only, any erroneous data spikes are filtered out, the surface equilibration period is removed. Smith, Joy joy.smith@noaa.gov processor Source Contribution: Protocol RK Hoeke, JM Gove, E Smith, P Fisher-Pool, M Lammers, D Merritt, OJ Vetter, CW Young, KB Wong & RE Brainard (2009) Coral reef ecosystem integrated observing system: In-situ oceanographic observations at the US Pacific islands and atolls, Journal of Operational Oceanography, 2:2, 3-14, DOI: 10.1080/1755876X.2009.12027737 2009-01-01 publication Pacific Islands Fisheries Science Center https://doi.org/10.1080/1755876X.2009.12027737 WWW:LINK-1.0-http--link Journal of Operational Oceanography The PIFSC Ecosystem Sciences Division's oceanography team collects data using a variety of methods as described in this paper on in-situ oceanographic observations. information originator otherRestrictions otherRestrictions Access Constraints: None | Use Constraints: None RBR Concerto3 CTD logger Conductivity, Temperature and Depth sensor The RBRconcerto³ C.T.D conductivity, temperature and depth logger is our redesigned C.T.D logger built on the years of experience RBR has creating reliable and easy-to-use instruments. The instrument generates salinity and speed of sound internally. The RBRconcerto³ C.T.D is a submersible instrument that is self-contained, accurate and autonomous; it can be deployed for a period of up to 5 years at 1 minute sampling intervals and data is retained in memory even after the batteries are removed.