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 Set (DS) | Pacific Islands Fisheries Science Center (PIFSC)GUID: gov.noaa.nmfs.inport:68094 | Updated: October 3, 2024 | Published / External
Summary
Short Citation
Pacific Islands Fisheries Science Center, 2024: 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.
Full Citation Examples
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.
Distribution Information
-
CSV - Comma Separated Values (Text), 411 KB
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.
None
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.
Controlled Theme Keywords
CONDUCTIVITY PROFILES, CORAL REEF, DENSITY, DOC/NOAA/NMFS/PIFSC/ESD, OCEAN SALINITY PROFILES, oceans, WATER TEMPERATURE
Child Items
Type | Title |
---|---|
Entity | ESD_LBSP_CTD_DataDictionary_Aua_2022 |
Contact Information
Point of Contact
Joy Smith
joy.smith@noaa.gov
Metadata Contact
Lori H Luers
lori.luers@noaa.gov
Extents
-170.669° W,
-170.665° E,
-14.2717° N,
-14.2881° S
Extent of CTD casts in Aua reef, American Samoa in 2022.
2022-09-13 - 2022-09-23
Time frame over which CTD casts which were conducted at 18 survey sites along a water quality gradient off of Aua, American Samoa
Item Identification
Title: | Shallow Water Conductivity-Temperature-Depth (CTD) Profiles along a water quality gradient in Aua, American Samoa from 2022-09-13 to 2022-09-23 |
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Short Name: | LBSP: CTD Aua |
Status: | Completed |
Creation Date: | 2022 |
Publication Date: | 2023 |
Abstract: |
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. |
Purpose: |
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. |
Supplemental Information: |
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. |
Keywords
Theme Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Data Center Keywords |
DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY > CONDUCTIVITY PROFILES
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > SALINITY/DENSITY > OCEAN SALINITY > OCEAN SALINITY PROFILES
|
ISO 19115 Topic Category |
oceans
|
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 Physical |
CoRIS Theme Thesaurus | EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs |
CoRIS Theme Thesaurus | EARTH SCIENCE > Oceans > Ocean Pressure > Sea Level Pressure |
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 | 31303 |
CRCP Project | Linking watershed management activities to reef health in American Samoa |
NODC DATA TYPES THESAURUS | CONDUCTIVITY |
NODC DATA TYPES THESAURUS | DEPTH - SENSOR |
NODC DATA TYPES THESAURUS | PRESSURE - WATER [HYDROSTATIC PRESSURE] |
NODC DATA TYPES THESAURUS | SALINITY |
NODC DATA TYPES THESAURUS | SIGMA-T |
NODC DATA TYPES THESAURUS | WATER TEMPERATURE |
NODC OBSERVATION TYPES THESAURUS | in situ |
NODC OBSERVATION TYPES THESAURUS | physical |
NODC OBSERVATION TYPES THESAURUS | profile |
NODC PROJECT NAMES THESAURUS | Coral Reef Conservation Program |
NODC PROJECT NAMES THESAURUS | CORAL REEF STUDIES |
NODC SUBMITTING INSTITUTION NAMES THESAURUS | US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division |
None | Climate Change |
None | Coral Reef Ecosystem Division |
None | Coral Reef Ecosystem Program |
None | CRED |
None | CREP |
None | Ecosystem Sciences Division |
None | ESD |
None | land-based source pollution |
None | LBSP |
None | Pacific Islands Fisheries Science Center |
None | PIFSC |
Spatial Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Location Keywords |
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA
|
UNCONTROLLED | |
CoRIS Place Thesaurus | COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000) |
CoRIS Place Thesaurus | COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016) |
CoRIS Place Thesaurus | OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000) |
CoRIS Place Thesaurus | OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016) |
NODC SEA AREA NAMES THESAURUS | South Pacific Ocean |
None | American Samoa |
None | AMSM |
Instrument Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Instrument Keywords |
CTD > Conductivity, Temperature, Depth
|
UNCONTROLLED | |
NODC INSTRUMENT TYPES THESAURUS | CTD |
Platform Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
NODC PLATFORM NAMES THESAURUS | CHARTERED VESSEL |
Physical Location
Organization: | Pacific Islands Fisheries Science Center |
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City: | Honolulu |
State/Province: | HI |
Country: | USA |
Data Set Information
Data Set Scope Code: | Data Set |
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Data Set Type: | CSV Files |
Maintenance Frequency: | As Needed |
Data Presentation Form: | Table (digital) |
Entity Attribute Overview: |
CTD data include metadata for each observation and conductivity, temperature, and pressure observations with calculated depth, salinity and density. |
Entity Attribute Detail URL: | https://www.fisheries.noaa.gov/inport/item/69889 |
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: | NOAA Fisheries, PIFSC Ecosystem Sciences Division and partners, and funded by the NOAA Coral Reef Conservation Program |
Support Roles
Data Set Credit
Date Effective From: | 2021 |
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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
Date Effective From: | 2021 |
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Date Effective To: | |
Contact (Person): | Smith, Joy |
Address: |
1845 Wasp Blvd. Bldg 176 Honolulu, HI 96818 USA |
Email Address: | joy.smith@noaa.gov |
Distributor
Date Effective From: | 2021 |
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Date Effective To: | |
Contact (Organization): | NOAA National Centers for Environmental Information (NCEI) |
Email Address: | ncei.info@noaa.gov |
URL: | NCEI Contact Information |
Metadata Contact
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
Date Effective From: | 2021 |
---|---|
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
Date Effective From: | 2021 |
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Date Effective To: | |
Contact (Person): | Smith, Joy |
Address: |
1845 Wasp Blvd. Bldg 176 Honolulu, HI 96818 USA |
Email Address: | joy.smith@noaa.gov |
Extents
Extent Group 1
Extent Description: |
Extent of CTD data collected in Aua Reef via snorkeling during fly-in mission MP2206 (scientists flew into American Samoa conducted surveys) |
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Extent Group 1 / Geographic Area 1
W° Bound: | -170.669 | |
---|---|---|
E° Bound: | -170.665 | |
N° Bound: | -14.2717 | |
S° Bound: | -14.2881 | |
Description |
Extent of CTD casts in Aua reef, American Samoa in 2022. |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2022-09-13 |
End: | 2022-09-23 |
Alternate Start As Of Info: | MP2206 |
Description: |
Time frame over which CTD casts which were conducted at 18 survey sites along a water quality gradient off of Aua, American Samoa |
Access Information
Security Class: | Unclassified |
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Security Classification System: |
Not applicable |
Security Handling Description: |
Not applicable |
Data Access Policy: |
NOAA Coral Reef Ecosystem Sciences Division (ESD) Data Sharing Recommendations, version 9.0 updated August 12, 2015: The ESD welcomes the opportunity to collaborate on research issues contributing to the scientific basis for better management of marine ecosystems. The 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 Coral Reef 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, 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. |
Metadata Access Constraints: |
None |
Metadata Use Constraints: |
None |
Distribution Information
Distribution 1
Start Date: | 2023 |
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End Date: | Present |
Download URL: | https://www.ncei.noaa.gov/archive/accession/0278377 |
Distributor: | NOAA National Centers for Environmental Information (NCEI) (2021 - Present) |
File Name: | ESD_LBSP_CTD_AUA_2022.csv |
Description: |
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. |
File Date/Time: | 2022-12-12 17:07:00 |
File Type (Deprecated): | csv (comma-separated values) |
Distribution Format: | CSV - Comma Separated Values (Text) |
File Size: | 411 KB |
URLs
URL 1
URL: | https://www.fisheries.noaa.gov/region/pacific-islands#science |
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Name: | PIFSC website |
URL Type: |
Online Resource
|
Description: |
Overview of research and programs at the Pacific Islands Fisheries Science Center (PIFSC) |
URL 2
URL: | https://coralreef.noaa.gov/issues/lbsp.html |
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Name: | NOAA CRCP Land-based Sources of Pollution |
URL Type: |
Online Resource
|
Description: |
NOAA CRCP page 'Reduce Land-Based Sources of Pollution'; includes other related links |
Technical Environment
Description: |
Raw CTD profile data are downloaded from the RBR and saved as .CSV files. |
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Data Quality
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% |
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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. |
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, prior to and after the data are migrated to the PIFSC enterprise Oracle database, and once again when the data are submitted to the NOAA National Centers for Environmental Information. |
Data Management
Have Resources for Management of these Data Been Identified?: | Yes |
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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 PIFSC network. The PIFSC network is maintained and regularly backed up by PIFSC ITS. |
Lineage
Lineage Statement: |
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. |
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Sources
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
Contact Role Type: | Originator |
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Contact Type: | Organization |
Contact Name: | Pacific Islands Fisheries Science Center |
Publish Date: | 2009-01-01 |
Citation URL: | https://doi.org/10.1080/1755876X.2009.12027737 |
Citation URL Name: | Journal of Operational Oceanography |
Citation URL Description: |
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. |
Source Contribution: |
Protocol |
Process Steps
Process Step 1
Description: |
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. |
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Process Contact: | Smith, Joy |
Email Address: | joy.smith@noaa.gov |
Source: | 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 |
Process Step 2
Description: |
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. |
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Process Contact: | Smith, Joy |
Email Address: | joy.smith@noaa.gov |
Acquisition Information
Instruments
Instrument 1
Identifier: | RBR Concerto3 CTD logger |
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Instrument / Gear: | Instrument |
Instrument Type: | Conductivity, Temperature and Depth sensor |
Description: |
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. |
Platforms
Platform Unavailable Reason: | Not Applicable |
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Child Items
Rubric scores updated every 15m
Type | Title | |
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Entity | ESD_LBSP_CTD_DataDictionary_Aua_2022 |
Related Items
Catalog Details
Catalog Item ID: | 68094 |
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GUID: | gov.noaa.nmfs.inport:68094 |
Metadata Record Created By: | Lori H Luers |
Metadata Record Created: | 2022-10-25 19:20+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2024-10-03 18:16+0000 |
Metadata Record Published: | 2023-05-17 |
Owner Org: | PIFSC |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2021-03-10 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2022-03-10 |