US Environmental Protection Agency National Coastal Assessment for American Samoa 2004: Water Quality, Sediment Grain and Chemistry Data (NODC Accession 0000455)

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Frequently anticipated questions:


What does this data set describe?

Title:
US Environmental Protection Agency National Coastal Assessment for American Samoa 2004: Water Quality, Sediment Grain and Chemistry Data (NODC Accession 0000455)
Abstract:
In 2004, the Environmental Protection Agency (EPA) Environmental Monitoring and Assessment Program (EMAP) National Coastal Assessment (NCA), coordinated through the Gulf Ecology Division, conducted a comprehensive survey of the condition of estuarine resources in American Samoa. The survey sampled 49 stations on islands of Tutuila, Aunu'u Ofu, Olosega, Ta'u during April and August, 2004. The WATER QUALITY MEASUREMENTS data set contains two types of data: hydrologic profile water quality information resulting from in-field observations of physical data and water quality information resulting from laboratory examination of water quality samples for nutrient analyses. The SEDIMENT CHEMISTRY data set contains sediment contaminant information resulting from laboratory examination of samples collected at sites. Each record reports the contaminant name and its associated measured concentration, date site was visited, and the group that collected the data. Only one grab per site was required by the program. The SEDIMENT GRAIN data set contains sediment grain analyses information resulting from laboratory examination of samples collected at sites visited during probability surveys. Each record reports the sediment component and its associated measured concentration, date site was visited, and the group that collected the data. Only one grab per site was required by the program.
Supplemental_Information:
NOAASupplemental:Entry_ID: Unknown Sensor_Name: Sampling bags, nets, jars Sensor_Name: Hydrolab/YSISource_Name: small boat, SCUBA Project_Campaign: Environmental Protection Agency Environmental Monitoring and Assessment Program National Coastal Assessment Originating_Center: Gulf Ecology Division, US EPA Storage_Medium: ASCII Text Reference: None Online_size: 701 kilobytes

Resource Description: NODC Accession Number 0000455

  1. How should this data set be cited?

    Linda Harwell, US EPA Office of Research and Development, National Health and Environmental, Effects Research Laboratory - Gulf Ecology Division (EPA-GED), and John Macauley, EPA-GED, Unknown, US Environmental Protection Agency National Coastal Assessment for American Samoa 2004: Water Quality, Sediment Grain and Chemistry Data (NODC Accession 0000455).

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -170.846
    East_Bounding_Coordinate: -169.419
    North_Bounding_Coordinate: -14.159
    South_Bounding_Coordinate: -14.363

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 08-Apr-2004
    Ending_Date: 25-Aug-2004
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

    2. What coordinate system is used to represent geographic features?

  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    SAMPLING STATIONS: see about/HawaiiMapEPA_NCA.jpg see data/0-data/Station_Locations_Information/coast_out.slSUBMITTING MEDIUM: Data downloaded from <http://oaspub.epa.gov/coastal/coast.searchDIRECTORY> ORGANIZATION, FILE NAMES AND FORMATS: Directory data/0-data/ contains the files as acquired from the originators. Directories and files in 0-data/Directory: Station_Locations_Information/file: coast_out.slcomment: station information file: GED0004_Sta_m.txtcomment: FGDC metadata for data collection, methods, processing, and quality control; metadata generalized for more locations than American Samoa. Directory: Station_Visit_Information/file: coast_out.svcomment: This file contains site visit date, number of visits to site and measured station depth. Directory: Sediment_Analyte_Concentrate_Data/file: coast_ana.saccomment: codes for parameters file: coast_qa.saccomment: codes for quality control file: display.sac_parsecomment: data defined by header file: GED0004_Schm_m.txtcomment: FGDC metadata for data collection, methods, processing, and quality control; metadata generalized for more locations than American Samoa.Directory: Sediment_Grain_Composition_Data/file: display.sga_parsecomment: data defined by headerfile: GED0004_Sgrn_m.txtcomment: FGDC metadata for data collection, methods, processing, and quality control; metadata generalized for more locations than American Samoa.Directory: Water_Quality_Data_By_Station/file: display.wqm_parsecomment: data defined by headerfile: GED0004_WMeas_m.txtcomment: FGDC metadata for data collection, methods, processing, and quality control; metadata generalized for more locations than American Samoa.
    Entity_and_Attribute_Detail_Citation: none


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Requested Acknowledgment If you plan to publish these data in any way, EPA requires a standard statement for work it has supported: "Although the data described in this article have been funded wholly or in part by the U. S. Environmental Protection Agency through its EMAP-National Coastal Assessment Program, it has not been subjected to Agency review, and therefore does not necessarily reflect the views of the Agency and no official endorsement should be inferred."

  3. To whom should users address questions about the data?

    Linda Harwell
    Effects Research Laboratory - Gulf Ecology Division, US EPA
    Information Technology Specialist
    One Sabine Island Drive
    Gulf Breeze, FL 32561
    USA

    850.934.2464 (voice)
    Harwell.Linda@epa.gov


Why was the data set created?

These data originated from surveys designed to assess the ecological conditions in estuaries. Program Objective EPA's National Coastal Assessment (NCA), is a five-year effort led by EPA's Office of Research and Development to evaluate the assessment methods it has developed to advance the science of ecosystem condition monitoring. C2000 represents the current state of evolution of EPA's EMAP.EMAP was originally designed to provide a quantitative assessment of the regional extent of environmental problems by measuring status and change in selected indicators of ecological condition. EMAP provides a strategy to identify and bound the extent, magnitude and location of environmental degradation and improvement on a regional scale. Data Set Objective The objective of the sampling design is to provide a statistically defensible strategy for collecting information about selected indicators of ecological condition and their variability. The design is flexible to allow alternative future uses.


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

    Date: Unknown (process 1 of 1)
    Data Set Background Discussion The EMAP-Estuaries sampling design on which C2000 is based combines the strengths of systematic and random sampling with our understanding of estuarine systems. It provides a design that will allow probability-based estimates of the status of the Nation's estuarine systems, the variability associated with that status, its spatial and temporal components, and the temporal trends associated with changes in these systems. The Coastal 2000 sampling design is based on a single, annual sampling season of each station during the Index Period. The design differs from previous EMAP designs in that existing monitoring programs were incorporated where appropriate. "Biased" programs, such as those designed to evaluate the effects of a treatment plant, would NOT be appropriate for inclusion. Working with the states, the C2000 design team was able to identify a large number of sites that are currently being monitored and meet the criteria for being unbiased in their location. Many were randomly located in the original monitoring design. Specific methodology is in the REFERENCES below. Additional information is provided in:1) data/0-data/Station_Locations_Information/GED00004_Sta_m.txt2) data/0-data/"each data directory"/"file starting with GED "These "GED..." files are generalized for areas beyond American Samoa. INSTRUMENT TYPES: Station locations were determined using a GPS and are accurate within a radius of 100 ft. North American Datum of 1983 was used. Sampling platforms: small boat, SCUBA sampling jars sampling nets sampling bags25 m transect line Hydrolab/YSISecchi disk REFERENCES: Diaz-Ramos, S., Stevens, D.L., Jr and Olsen, A.R. (1996) EMAP Statistical Methods Manual. Rep. EPA/620/R-96/002, U.S. Environmental Protection Agency, Office of Research and Development, NHEERL-WED, Corvallis, Oregon .U.S. Environmental Protection Agency. 2001. Environmental Monitoring and Assessment Program (EMAP) National Coastal Assessment: Quality Assurance Project Plan 2001-2004. Office of Research and Development, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, Gulf Breeze, FL. EPA/620/R-01/002.U.S. Environmental Protection Agency. 2001. Environmental Monitoring and Assessment Program (EMAP) National Coastal Assessment: Field Operations Manual. Office of Research and Development, National Health and Environmental Effects Research Laboratory, Gulf Ecology Division, Gulf Breeze, FL. EPA/620/R-01/003.

    Person who carried out this activity:

    Linda Harwell
    Effects Research Laboratory - Gulf Ecology Division, US EPA
    Information Technology Specialist
    One Sabine Island Drive
    Gulf Breeze, FL 32561
    USA

    850.934.2464 (voice)
    Harwell.Linda@epa.gov

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    quality control completed

  5. How consistent are the relationships among the observations, including topology?

    see methodology


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints: Dataset credit required

  1. Who distributes the data set? (Distributor 1 of 1)

    NOAA/NESDIS/National Oceanographic Data Center
    Attn: Data Access Group, User Services Team
    SSMC-3 Fourth Floor
    Silver Spring, MD 20910-3282
    USA

    301-713-3277 (voice)
    301-713-3302 (FAX)
    services@nodc.noaa.gov

    Hours_of_Service: 8am-5pm, Monday through Friday
  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA, NESDIS, NODC and NCDDC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 20-Dec-2012
Last Reviewed: 18-Mar-2010
Metadata author:
Mr. Patrick C. Caldwell
NOAA/NESDIS/NODC/NCDDC
Hawaii/US Pacific Liaison
1000 Pope Road, MSB 316
Honolulu, Hawaii 96822
USA

(808)-956-4105 (voice)
(808) 956-2352 (FAX)
caldwell@hawaii.edu

Hours_of_Service: 8 AM to 5 PM weekdays
Contact_Instructions: check services@nodc.noaa.gov if not available
Metadata standard:
FGDC CSDGM (FGDC-STD-001-1998)


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