Mr. Jerome Aucan, University of Hawaii
Dr. Mark Merrifield, University of Hawaii
Unknown
Data from a Directional Waverider Buoy off Waimea Bay, North Shore, Oahu during December 2001 - July 2004 (NODC Accession 0001626)
None
None
Unpublished Material
Unpublished Material
https://www.ncei.noaa.gov/archive/accession/0001626
Through various funding channels, the Department of Oceanography at the University of Hawaii (UH) has maintained a Datawell Directional Waverider Buoy roughly 5 km northwest of Waimea Bay, Oahu in roughly 200 m ocean depth since 9 December, 2001. 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.
NOAASupplemental:
Entry_ID: Unknown
Sensor_Name: Datawell Waverider Buoy
Project_Campaign: Oahu Wave Modeling
Originating_Center: Datawell Waverider Buoy
Storage_Medium: ASCII
Online_size: 9730 kbyte
Resource Description: NODC Accession Number 0001626
20011216
20040714
ground condition
Continually
-158.1176
-158.1176
21.6726
21.6726
NCEI Geoportal FilterCoRIS_Metadata
None
Coastal studies
wave energy
wave direction
wave period
significant wave height
dominant wave period
mean wave period
dominant wave direction
CoRIS Discovery Thesaurus
Numeric Data Sets > Oceanography
CoRIS Theme Thesaurus
EARTH SCIENCE > Oceans > Ocean Waves > Wave Height
EARTH SCIENCE > Oceans > Ocean Waves > Wave Direction
EARTH SCIENCE > Oceans > Ocean Waves > Wave Period
ISO 19115 Topic Category
oceans
014
None
North Pacific
Hawaiian Islands
Oahu
North Shore
Waimea Bay
CoRIS Region
MHI
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Oahu (21N157W0003)
COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Oahu (21N157W0003)
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surface
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Dataset credit required
Jerome Aucan
University of Hawaii
Graduate student
mailing and physical
1000 Pope Rd.
Marine Science Bldg 205
Honolulu
Hawaii
96822
USA
(808) 956-7633
jaucan@soest.hawaii.edu
Department of Oceanography,
School of Ocean and Earth Science and Technology,
University of Hawaii
and
Coastal Data Information Program,
Scripps Institute of Oceanography
ASCII
see lineage, process step
none
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.
none
Unknown
Jerome Aucan
University of Hawaii
Graduate student
mailing and physical
1000 Pope Rd.
Marine Science Bldg 205
Honolulu
Hawaii
96822
USA
(808) 956-7633
jaucan@soest.hawaii.edu
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
none
NOAA/NESDIS/National Oceanographic Data Center
User Services Team
mailing and physical
SSMC-3 Fourth Floor
1315 East West Highway
Silver Spring
MD
20910-3282
USA
301-713-3277
301-713-3302
NODC.Services@noaa.gov
8am-5pm, Monday through Friday
Downloadable Data
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.
ASCII
https://accession.nodc.noaa.gov/0001626
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.
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.
20210106
20090916
Mr. Patrick C. Caldwell
NOAA/NESDIS/NODC/NCDDC
Hawaii/US Pacific Liaison
mailing
1000 Pope Road, MSB 316
Dept. of Oceanography
University of Hawaii at Manoa
Honolulu
Hawaii
96822
USA
(808)-956-4105
(808) 956-2352
caldwell@hawaii.edu
8 AM to 5 PM weekdays
check services@nodc.noaa.gov if not available
FGDC CSDGM
FGDC-STD-001-1998
20090916123215
None
20011216
20040714
https://www.coris.noaa.gov/metadata/records/html/waimea_fgdc_0001626.html
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