Identification_Information: Citation: Citation_Information: Originator: Mr. Jerome Aucan, Department of Oceanography, School of Ocean and Earth Science and Technology, University of Hawaii Originator: Dr. Mark Merrifield, Department of Oceanography, School of Ocean and Earth Science and Technology, University of Hawaii Publication_Date: 20051231 Title: Significant Wave Heights, Periods, and Directions, and Air and Sea Temperature Data from a Directional Waverider Buoy off Diamond Head, Oahu during March-April 2000 (NODC Accession 0000475) Online_Linkage: https://www.ncei.noaa.gov/archive/accession/0000475 Description: Abstract: A directional waverider buoy located about one nautical mile south of Diamond Head, Oahu, provided an approximately 10-day time series of wave characteristics and temperatures. The waverider was destroyed by a tug. Purpose: The wave data were acquired for application to physical models. Supplemental_Information: SAMPLING STATIONS; Station ID: 09701 Location; Approximately 1 nautical mile south of Diamond Head. Water Depth(m); 120 These wave rider data were obtained from Jerome Aucan and Mark Merrifield, University of Hawaii, via Julie Thomas, Scripps Institution of Oceanography, by Patrick Caldwell, NODC Liaison Officer, Honolulu, HI. Resource Description: NODC Accession Number 0000475 Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000327 Ending_Date: 20000405 Currentness_Reference: Ground Condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 157.7967 East_Bounding_Coordinate: 157.7967 North_Bounding_Coordinate: 21.2333 South_Bounding_Coordinate: 21.2333 Keywords: Theme: Theme_Keyword_Thesaurus: NCEI Geoportal Filter Theme_Keyword: CoRIS_Metadata Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: Oceanographic Theme_Keyword: Coral Reef Theme: Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus Theme_Keyword: Numeric Data Sets > Oceanography Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: 014 Theme: Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Waves > Significant Wave Height Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Waves > Wave Period Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature Theme_Keyword: EARTH SCIENCE > Atmosphere > Atmospheric Temperature > Air Temperature Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs Theme_Keyword: EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Physical Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Waves > Wave Direction Place: Place_Keyword_Thesaurus: CoRIS Place Thesaurus Place_Keyword: OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Diamond Head (21N157W0016) Place_Keyword: COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Diamond Head (21N157W0016) Place: Place_Keyword_Thesaurus: CoRIS Region Place_Keyword: MHI Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: sea surface Access_Constraints: None Use_Constraints: These oceanographic data are PRELIMINARY data and have not been screened for accuracy. NOAA can not be held liable for use of these data in a manner other than for perusal of preliminary oceanographic data for scientific research on coral reefs ecosystems. Data_Quality_Information: Logical_Consistency_Report: See process step Completeness_Report: Unknown Lineage: Process_Step: Process_Description: 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'sresponse 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. Sample interval was 1 hz. Data saved in nominally 30 minutes intervals. Instrument Type: Datawell Waverider Buoy Process_Date: Unknown Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Hs - Significant wave height in meters; derived from the zeroth moment of the reported energy spectrum. Described as the "average height of the one third highest waves in the record". The US Army Corps of Engineers, Shore Protection Manual, 3-states that a useful estimate of significant wave height in deep water is defined as: Hs~4*sigma, where sigma is the standard deviation of the wave record. Statistically, the maximum wave height in the record is Hmax ~ 9*Hs/5. Tp - Peak period, in seconds; inverse of the frequency with the highest energy in the reported spectrum. Dp - Mean direction from which energy is coming at the peak period, in degrees clockwise from true North. Ta - Average period, in seconds; derived from the zeroth moment divided by the first moment of the reported energy spectrum. Temp - Air - Air temperature in degrees Celsius. Temp - Sea - Sea surface temperature in degrees Celsius. The data are provided as two types - parameters time series and 9-band time series. Parameter files - location - ../data filename - pm09701yyyymm.txt where pm - parmeter file, 09701 - station ID, yyyy - year, mm - month file description - ../data/parm_format.txt 9-band files - location - ../data filename - 9bandyyyymm.txt where yyyy is year, mm is month file description - ../data/9band_format.txt Entity_and_Attribute_Detail_Citation: None Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: NOAA/NESDIS/National Oceanographic Data Center Contact_Person: Data Access Group, User Services Team Contact_Address: Address_Type: mailing and physical Address: SSMC-3 Fourth Floor Address: 1315 East West Highway City: Silver Spring State_or_Province: MD Postal_Code: 20910-3282 Country: USA Contact_Voice_Telephone: 301-713-3277 Contact_Facsimile_Telephone: 301-713-3302 Contact_Electronic_Mail_Address: services@nodc.noaa.gov Hours_of_Service: 8am-5pm, Monday through Friday Resource_Description: Downloadable Data Distribution_Liability: These oceanographic data are PRELIMINARY data and have not been screened for accuracy. NOAA can not be held liable for use of these data in a manner other than for perusal of preliminary oceanographic data for scientific research on coral reefs ecosystems. Disclaimer - 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ASCII Format_Version_Date: 20010619 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.ncei.noaa.gov/archive/accession/0000475 Fees: None Metadata_Reference_Information: Metadata_Date: 20210106 Metadata_Review_Date: 20090330 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mr. Patrick C. Caldwell Contact_Organization: NOAA/NESDIS/NODC/NCDDC Contact_Position: Hawaii/US Pacific Liaison Contact_Address: Address_Type: mailing Address: 1000 Pope Road, MSB 316 Address: Dept. of Oceanography Address: University of Hawaii at Manoa City: Honolulu State_or_Province: Hawaii Postal_Code: 96822 Country: USA Contact_Voice_Telephone: (808)-956-4105 Contact_Facsimile_Telephone: (808) 956-2352 Contact_Electronic_Mail_Address: caldwell@hawaii.edu Hours_of_Service: 8 AM to 5 PM weekdays Contact_Instructions: check services@nodc.noaa.gov if not available Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 CoRIS: CoRIS_ID: 20090326044634 CoRIS_Children: None CoRIS_Beginning_Date: 20000327 CoRIS_Ending_Date: 20000405 CoRIS_Metadata_Link: https://www.coris.noaa.gov/metadata/records/html/nodc_fgdcmetadata.html CoRIS_Tracking_ID: 4018