#ACCESSION NUMBER: 0001623v3.3 #CONTRIBUTOR: Keith Olson Chief Science Officer Natural Energy Laboratory of Hawaii Authority 73-4460 Queen Kaahumanu Hwy., Suite 101 Kailua-Kona, Hawaii 96740 Email: keitho@nelha.org Phone: 808.327.9585 x251 Fax: 808.327.9586 Web: http://nelha.hawaii.gov/ #ORIGINATOR: same #ORIGINATOR INSTITUTION: same #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 1982-2017 (NCEI Accession 0001623v3.3) #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 shallow (21 m) and deep (674 m) are utilized to record water characteristics. This data set includes roughly bi-weekly or monthly samples of temperature, salinity, and water chemistry, a total 16 parameters. The shallow series begain in July 1982 and the deep series in August 1988. The update to the NCEI archive in 2017 brings both series to November 2017. #PURPOSE: The purpose of the Comprehensive Environmental Monitoring Program is to fulfill NELHA's regulatory requirements and to protect the unique environmental resources of the Keahole Point area. #PROJECT: Ocean Thermal Energy Conversion (OTEC), Comprehensive Environmental Monitoring Program (CEMP) #FUNDING: State of Hawaii, Natural Energy Laboratory Hawaii Authority #LOCATION EXTREMES: SOUTHERNMOST LATITUDE: 19.724167 SOUTHERNMOST LATITUDE HEMISPHERE: N NORTHERNMOST LATITUDE: 19.72825 NORTHERNMOST LATITUDE HEMISPHERE: N WESTERNMOST LONGITUDE: 156.0775 WESTERNMOST LONGITUDE HEMISPHERE: W EASTERNMOST LONGITUDE: 156.062389 EASTERNMOST LONGITUDE HEMISPHERE: W #LOCATION KEYWORDS: North Pacific, Island of Hawaii, Keahole Point #SAMPLING STATIONS: Keahole Point OTEC facility Intakes locations 1) warm, surface seawater The 28 inch surface seawater pipeline is located 163 m from the shoreline and the intake is at pipe depth of 21 m in an ocean depth of 27.4 m. The coordinates for the 28" Surface Seawater Pipeline were recorded with a handheld GPS instrument during a recently pipeline inspection. 28" Surface Seawater Pipeline Intake: N 19 deg 43' 41.7", W 156 deg 03' 44.6" 2) cold, deep seawater The 40 inch pipeline is located 1.6 km from shore and the intake is located at a depth of 674 m. The coordinates for the 40" Deep Seawater Pipelines was extrapolated from an as built diagram. Therefore the coordinates are a close approximations of the 40" intake locations: 40" Deep Seawater Pipeline Intake: N 19 deg 43' 27", W 156 deg 04' 39" Classified as "raw seawater", since the samples are taken upstream of any branches in the distribution pipeline. #BEGIN AND END DATES: 1982-07-24 to 2017-11-29 #SAMPLING PERIODS: weekly or bi-weekly, then monthly after September 1999 #PARAMETERS: water chemistry water quality bacteria Specific Seawater paramters: 16 total Phosphate, PO43- (uM and ug P/L) Nitrate and nitrite, NO3- & NO2- (uM and u N/L) Ammonium and ammonia, NH4+ & NH3 (uM and ug N/L) Silicon, Si (uM and ug Si/L) Thymidine diphosphate, TDP (uM and ug P/L) Trimethyl dihydronapthalene, TDN (uM and ug N/L) Total organic carbon, TOC (mgC/L) Total suspended solids, TSS (mg/L) Turbidity (NTU) Alkalinity, ALK (mEq/L) Salinity (PSU) Temp (C) pH (unit) Dissolved oxygen, DO (ppm) Vibrio (CFU/100mL) Total Count Marine Agar (CFU/100 mL) #METHODOLOGY: Cold water was collected via a 674 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 21 meters deep located 163 m from 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. In September 2007, NELHA transitioned from the Technicon AutoAnalyser II to the Astoria-Pacific A2 for its nutrient analysis. 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 is probably well below influence of sunlight. #INSTRUMENT TYPES: standard equipment, standard methods A.G.E Model 2100 precision salinometer YSI 556 multiprobe #REFERENCES: 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. Olson, K., 2016. Annual report for the Comprehensive Environmental Monitoring Program covering the period July 24, 1982 through June 30, 2015. NELHA technical report, Kailua-Kona, HI, USA, April 2016, 692 pp. http://nelha.hawaii.gov/wp-content/uploads/2014/01/NELHA_14-15_Water_Chemistry_Report3.pdf 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. #SUBMITTING MEDIUM: email attachment #FILE AND DIRECTORY NAMES AND FORMATS: directory ../data/0-data contains files as provided to NCEI directory ../data/1-data contains files created by NCEI file: 0-data/NELHA28SSW_Data.xlsx format: Microsoft Excel Worksheet content: data from 28" pipe intake surface seawater sheets: single sheet columns: Header of columns clearly described for the Site, Date, and 16 parameters (some of which are stored in 2 unique units). Missing data are left blank. file: 1-data/NELHA28SSW_Data.csv format: comma-separated version content: CSV text export from 0-data/NELHA28SSW_Data.xlsx file: 0-data/NELHA40DSW_Data.xlsx format: Microsoft Excel Worksheet content: data from 40" pipe intake deep seawater sheets: single sheet columns: Header of columns clearly described for the Site, Date, and 16 parameters (some of which are stored in 2 unique units). Missing data are left blank. file: 1-data/NELHA40DSW_Data.csv format: comma-separated version content: CSV text export from 0-data/NELHA40DSW_Data.xlsx #DATASET SIZE: 691 kbytes #NUMBER OF DATA UNITS: 1 station, two depths #MISCELLANEOUS: NCEI Accession Number: 9800047 Title: PRESSURE - WATER and Other Data from FIXED PLATFORM from 19930618 to 19950817 Notes: Pacific International Center for High Technology Research (PITCHR) one-minute averages of water temperature for surface and deep intakes of the Keahole OTEC pipelines. NCEI Accession Number: 0001623v1.1 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 Notes: weekly to monthly sample intervals, shallow and deep intakes NCEI Accession Number: 0001623v2.2 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 - 2016