Chlorophyll Data from the Old Outfall Site in the South Sector of Kaneohe Bay, Oahu, Hawaii February 2001 to May 2004 (NODC Accession 0002805)

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Frequently anticipated questions:

What does this data set describe?

Title:
Chlorophyll Data from the Old Outfall Site in the South Sector of Kaneohe Bay, Oahu, Hawaii February 2001 to May 2004 (NODC Accession 0002805)
Abstract:
Kaneohe Bay received increasing amounts of sewage from the 1950s through 1977. Most sewage was diverted from the bay in 1977 and early 1978. Data were collected beginning in September 1976 and continued until June 1979. The time series was re-established in June 1982 and continued to December 2005, when it was terminated. The sampling was at 1 m depth in the south sector of Kaneohe Bay, Oahu near the old outfall that ceased in 1977. Previous NODC Accessions 0000396 (1976-1979) and 0000422 (1982-1/2001) contained monthly averages of chlorophyll a, based on weekly to bi-weekly samples. This data set has the weekly to bi-weekly chlorophyll a, pheo, water temperature, secchi depth, and sample site depth. Additional data were taken from June 2004 - December 2005 and these will be available in a separate data set.
Supplemental_Information:
Entry_ID Unknown Sensor_Name Bilge pump filter for collection, thermistor, secchi disk, depth chain Source_Name manual Project_Campaign: Chlorophyll Time Series Kaneohe Bay, good will of University of Hawaii staff Storage_Medium OpenOffice spreadsheet Reference None Online_size: 11 kilobytes
  1. How should this data set be cited?

    Hashimoto, Dr. David , A., Dr. Edward Laws, Dr. Robert A. Kinzie III, Hashimoto, Dr. David , Bienfang, Dr. Paul , Oceanography, Department of , and University of Hawaii at Manoa, Unknown, Chlorophyll Data from the Old Outfall Site in the South Sector of Kaneohe Bay, Oahu, Hawaii February 2001 to May 2004 (NODC Accession 0002805).

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -157.775
    East_Bounding_Coordinate: -157.775
    North_Bounding_Coordinate: 21.4116
    South_Bounding_Coordinate: 21.4116

  3. What does it look like?

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

    Beginning_Date: 07-Feb-2001
    Ending_Date: 26-May-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:
    File name: chl_time_series_Kbay_Feb2001_May2004.sxc format: OpenOffice 1.1.2 Redundant ASCII copy: chl_time_series_Kbay_Feb2001_May2004.csv

    Columns are self-evident.

    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?

    University of Hawaii, Departments of Oceanography and Zoology

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

    Dr. David Hashimoto
    Department of Oceanography, SOEST, University of Hawaii at Manoa
    Researcher
    Department of Oceanography, MSB 519
    Honolulu, Hawaii 96822
    USA

    808-956-8952 (voice)
    808-956-9225 (FAX)
    dhash@soest.hawaii.edu

Why was the data set created?

The purpose was to study the responses of the ecosystem to the sewage diversion from the inner bay to an offshore, deep water location and to continue monitoring the location to denote changes associated with natural environmental and anthropogenic forcing on the primary productivity.

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)
    Field Collection- Water samples were taken using a modified bilge pump fitted with a garden hose. Primary production measurements on water samples taken before and after passing through the pump were found not to be significantly different. The water from the pump was screened through 102-um-mesh nylon gauze in order to remove the larger zooplankton. Samples were taken at depth of 1m. Laboratory Methods- Two liter samples for chlorophyll analysis were filtered ont GFC filters and analyzed following the procedures recommended by Jeffrey (1974) and Jeffrey and Humphrey (1975).

    Jeffrey, S. W. 1974. Profiles of Photosynthetic Pigments in the Ocean using Thin Layer Chromatography. Mar. Biol. 26: 101-110. Jeffrey, S.W., and G.F. Humphrey. 1975. New Spectro- photometric Equation for Determining Chlorophylls a, b, c1, and c2 in Higher Plants, Algae, and Natural Phytoplankton. Biochem. Physiol. Pflanzen 167:191-194. Smith, Stephen V., William J. Kimmerer, Edward A. Laws, Richard E. Brock, and Ted W. Walsh, 1981. Kaneohe Bay Sewage Diversion Experiment: Perspectives on Ecosystem Responses to Nutritional Perturbation. Pacific Science. Volume 35, Number 4, October 1981. pp. 402.

    Person who carried out this activity:

    Dr. David Hashimoto
    Department of Oceanography, SOEST, University of Hawaii at Manoa
    Researcher
    Department of Oceanography, MSB 519
    Honolulu, Hawaii 96822
    USA

    808-956-8952 (voice)
    808-956-9225 (FAX)
    dhash@soest.hawaii.edu

  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?

    The 2001-2004 surveys were 100% complete

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

    see Process Step

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/NODC/NCDDC (National Coastal Data Development Center)
    National Coastal Data Development Center, Building 1100
    Stennis Space Center, MS 39529

    866-732-2382 (voice)
    228-688-2968 (FAX)
    ncddcgetdata@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: 08-Dec-2012
Last Reviewed: 13-Jan-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 Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

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