Temperature, Salinity, and Water Chemistry Data from the Comprehensive Environmental Monitoring Program of the Ocean Thermal Energy Conversion Plant at Keahole, Island of Hawaii, from Shallow and Deep Intake Pipes during 1982-2004 (NODC Accession 0001623)

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Frequently anticipated questions:


What does this data set describe?

Title:
Temperature, Salinity, and Water Chemistry Data from the Comprehensive Environmental Monitoring Program of the Ocean Thermal Energy Conversion Plant at Keahole, Island of Hawaii, from Shallow and Deep Intake Pipes during 1982-2004 (NODC Accession 0001623)
Abstract:
The NATURAL ENERGY LABORATORY OF HAWAII AUTHORITY (NELHA) is a state agency that operates a unique and innovative ocean science and technology park in Kailua-Kona on the island of Hawaii. It supports an Ocean Thermal Energy Conversion (OTEC) facility at Keahole Point on the west coast of the Island of Hawaii. Intake pipes at deep (675 m) and shallow (20 m) are utilized to record water characteristics. This data set includes roughly bi-weekly samples of temperature, salinity and water chemistry.
Supplemental_Information:
Entry_ID Unknown Sensor_Name standard system Source_Name manual Project_Campaign: State of Hawaii Originating_Center NELHA Storage_Medium MS Excel Online_size: 1591 kbyte

Resource Description: NODC Accession Number 0001623

  1. How should this data set be cited?

    Jan War, Natural Energy Laboratory Hawaii Authority, Unknown, Temperature, Salinity, and Water Chemistry Data from the Comprehensive Environmental Monitoring Program of the Ocean Thermal Energy Conversion Plant at Keahole, Island of Hawaii, from Shallow and Deep Intake Pipes during 1982-2004 (NODC Accession 0001623): None None, Unpublished Material, Unpublished Material.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -156.7
    East_Bounding_Coordinate: -156.7
    North_Bounding_Coordinate: 19.0667
    South_Bounding_Coordinate: 19.0667

  3. What does it look like?

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

    Beginning_Date: 24-Jul-1982
    Ending_Date: 10-Feb-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:
    Original file is ../../data/NELHA_Surface___Deep_Seawater_Chemistry.xls, MS Excel

    There are two sheets in this MS Excel file, which were separately dumped into ASCII Comma Separated Version (CSV) files: NELHA_Surface___Deep_Shallow.csv NELHA_Surface___DSW_40inch_Pipe_Chemistry.csv

    Dates and units are clearly indicated for each parameter.

    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?

    State of Hawaii, Natural Energy Laboratory Hawaii Authority

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

    Jan War
    Natural Energy Laboratory Hawaii Authority
    Operations Manager
    73-4460 Queen Kaahumanu Hwy. #101
    Kailua-Kona, Hawaii 96740-2637
    USA

    (808) 329-7341, Extn 228 (voice)
    jwar@nelha.org


Why was the data set created?

Support research at the NELHA


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)
    Cold water was collected via a 675 meter deep one meter diameter HDPE pipe located 1.6 km from shore. Water velocities are slow enough that no significant heating occurs by friction. Warm water is taken from a 28 inch pipe 20 meters deep located near shore.

    Each data value is a separate sample that is corrected against the calibration of the machine it is run on. The instrumentation is calibrated against a set of standards that are either solutions formulated by our chemists or against a standard that comes in a sealed glass ampoule from a certified lab on the mainland or Europe. A set of samples (15-50) are run on the calibrated instrumentation (machines) over a period of about 2-8 hours depending on the parameter measured.

    The time of day varies, although the measurement is usually determined between 11:00 a.m. to 4:00 p.m. Most of the samples are run fresh and not preserved in any way, except DO's. We measure dissolved oxygen using the Winkler Titration method, so the samples are preserved with a two chemical process immediately after the sample is taken. The shallow intake was between 65-70 ft. It is actually closer to 45-50 ft., which is still probably well below influence of sunlight.

    Person who carried out this activity:

    Jan War
    Natural Energy Laboratory Hawaii Authority
    Operations Manager
    73-4460 Queen Kaahumanu Hwy. #101
    Kailua-Kona, Hawaii 96740-2637
    USA

    (808) 329-7341, Extn 228 (voice)
    jwar@nelha.org

    Data sources used in this process:
    • Daniel, T.H., Sept. 23-25, 1986, "Operational Experience with the Cold Water Pipe at the Natural Energy Laboratory of Hawaii", Oceans 86 Conference Record, Marine Technology Soc., Washington, D.C., p. 185-90.
    • Daniel, T.H., November 1988, "Ocean Thermal Energy Conversion and the Natural Energy Laboratory of Hawaii", in Fast, A.W. and K.Y. Tanoue, eds., OTEC Aquaculture in Hawaii, UH Sea Grant, p.5-48.
    • Daniel, T.H., August 1999, "A Brief History of OTEC Research At NELHA. DiChristina, Mariette, May 1995, Sea Power, Popular Science, p.70-73.
    • Hachmuth, C.A., Aug 9-10, 1991, "On the Properties of Deep Sea Water at Keahole Point", Proceedings of The International Forum on Deep Sea Water, Kochi Prefecture, Japan.
    • Sansone, F.J., S.V. Smith, J.M. Price, T.W. Walsh, T.H. Daniel and C.C. Andrews, April, 1988, "Long-term Variation in Seawater Composition at the Base of the Thermocline", Nature, v. 332, No. 6166, p. 714-717, 21.

  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?

    none

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

    see lineage, 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/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: 26-Aug-2009
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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