mokapu_fgdc_0001660 eng; USA utf8 dataset Mr. Patrick C. Caldwell NOAA/NESDIS/NODC/NCDDC Hawaii/US Pacific Liaison (808)-956-4105 (808) 956-2352 1000 Pope Road, MSB 316 Dept. of Oceanography University of Hawaii at Manoa Honolulu Hawaii 96822 USA caldwell@hawaii.edu 8 AM to 5 PM weekdays check services@nodc.noaa.gov if not available pointOfContact 2021-01-06 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Data from a Directional Waverider Buoy off Kailua Bay, Windward Oahu, Hawaii during August 2000 - July 2004 (NODC Accession 0001660) publication Mr. Jerome Aucan - University of Hawaii originator Dr. Mark Merrifield - University of Hawaii originator Unpublished Material publisher Through various funding channels, the Department of Oceanography at the University of Hawaii (UH) has maintained a Datawell Mark 2 Directional Waverider Buoy roughly 4 miles southeast of Mokapu Point, Oahu in roughly 100 m ocean depth since 9 August, 2000. It is located at the seaward edge of Kailua Bay, Windward Oahu. The buoy is a 0.9 m metallic floating sphere with a combination of a bungee and chain anchoring system. The long-term availability of this mooring is uncertain. The directional waverider measures the horizontal and vertical components of acceleration of the buoy, which rides up and down with the waves as it floats on the surface. The sampling rate is 1 Hz and the acquisition time is 20 minutes. From the accelerations of each acquisition time, spectra of energy by frequency and direction are derived. In addition, significant wave height and dominant wave period are calculated. The information is relayed to a shore data logging platform every 30 minutes. The Coastal Data Information Program (CDIP) are the primary stewards of the real-time data while UH handles maintenance duties. The wave data were acquired for application to physical models and near shore wave studies. Department of Oceanography, School of Ocean and Earth Science and Technology, University of Hawaii and Coastal Data Information Program, Scripps Institute of Oceanography completed Jerome Aucan University of Hawaii Graduate student (808) 956-7633 1000 Pope Rd. Marine Science Bldg 205 Honolulu Hawaii 96822 USA jaucan@soest.hawaii.edu pointOfContact continual CoRIS_Metadata theme NCEI Geoportal Filter Coastal studies sea temperature wave energy wave direction wave period significant wave height dominant wave period mean wave period dominant wave direction theme None Numeric Data Sets > Oceanography theme CoRIS Discovery Thesaurus EARTH SCIENCE > Oceans > Ocean Waves > Wave Period EARTH SCIENCE > Oceans > Ocean Waves > Wave Height EARTH SCIENCE > Oceans > Ocean Waves > Wave Direction theme CoRIS Theme Thesaurus North Pacific Hawaiian Islands Oahu Windward Oahu Kailua Bay Mokapu Peninsula place None MHI place CoRIS Region OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Oahu (21N157W0003) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Oahu (21N157W0003) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Mokapu (21N157W0023) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Mokapu (21N157W0023) place CoRIS Place Thesaurus surface stratum None NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC 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. otherRestrictions Use Constraints: Dataset credit required otherRestrictions Access Constraints: None eng; USA oceans Native Dataset Environment: ASCII -157.6783 -157.6783 21.415 21.415 2000-08-09 2004-07-31 NOAASupplemental: Entry_ID: Unknown Sensor_Name: Datawell Mark 2 Waverider Buoy Project_Campaign: Oahu Wave Modeling Originating_Center: Datawell Waverider Buoy Storage_Medium: ASCII Online_size: 15881 kbyte Resource Description: NODC Accession Number 0001660 Entity and Attribute Overview: ASCII text files are found in ../../data Data File Corresponding Comment Description File 8band_dir.txt 8band_dir_desc.txt Direction by period band 9band_ene.txt 9band_ene_desc.txt Energy by period band parameter.txt parameter_desc.txt Sig. height, Dominent Period, Average Period, Dominant Direction, SST Entity and Attribute Detail Citation: none ASCII User Services Team NOAA/NESDIS/National Oceanographic Data Center 301-713-3277 301-713-3302 SSMC-3 Fourth Floor 1315 East West Highway Silver Spring MD 20910-3282 USA NODC.Services@noaa.gov 8am-5pm, Monday through Friday distributor Prices vary depending on data set, output medium and ordering mechanism. A standard handling charge, with additional costs for special handling, may be added to the basic cost of the data. Ordering Instructions: Prepayment by check, money order or bank card is required. Orders may be placed via fax, email, regular mail, telephone or via the NNDC Online Store. https://www.ncei.noaa.gov/archive/accession/0001660 download dataset none see lineage, process step The .9 meter diameter Waverider measures wave height by measuring the vertical acceleration of the buoy. The discrepancy between vertical movement of the Waverider and the movement of the sea surface is small. When a moored Waverider follows the waves, the force of the mooring line will change. This force is produced by the changing immersion of the buoy, resulting in a error of max. 1.5%. With decreasing wave length, the buoy will not follow the wave amplitude if the wave length is less than 5m [wave period below 1.8 sec.]. If the wave length is less than 2.5m [wave period 1.25 sec.] the buoy's response decreases quickly. The directional Waverider measures wave height in the same manner as the Waverider. The directional wave measurements are calculated from the x, y, and z accelerations of the buoy. Jerome Aucan University of Hawaii Graduate student (808) 956-7633 1000 Pope Rd. Marine Science Bldg 205 Honolulu Hawaii 96822 USA jaucan@soest.hawaii.edu processor annually This metadata was automatically generated from the FGDC CSDGM standard (version FGDC-STD-001-1998) using the 2016-01-11 version of the FGDC RSE to ISO 19115-2 transform. Translated from FGDC 2025-03-24T17:25:14.922Z Last Metadata Review Date: 2009-09-16 Mr. Patrick C. Caldwell NOAA/NESDIS/NODC/NCDDC Hawaii/US Pacific Liaison (808)-956-4105 (808) 956-2352 1000 Pope Road, MSB 316 Dept. of Oceanography University of Hawaii at Manoa Honolulu Hawaii 96822 USA caldwell@hawaii.edu 8 AM to 5 PM weekdays check services@nodc.noaa.gov if not available pointOfContact