US Geological Survey (USGS) Western Region Coastal and Marine Geology Team deployed National Institute of Water and Atmospheric Research, New Zealand (NIWA) Dobie-A non-directional wave gauges in 5 nearshore areas of western Maui during summer 2003 in depths less than 11 m. It also provides an tidal heights, although they are not linked to a shore-based datum. Finalized data are provided in ASCII format.
To collect research-grade scientific data to provide baseline measurements and for nearshore circulation studies.
NOAASupplemental: Entry_ID: Unknown Sensor_Name: NIWA Dobie-A non-directional wave gauge Source_Name: manual Project_Campaign: USGS W.Maui Coral Reef Project Storage_Medium: ASCII Reference: None Online_size: 994 kilobytes Resource Description: NODC Accession Number 0012788
ground condition
Dataset credit required
Western Region Coastal and Marine Geology Team
USGS Pacific Science Center
400 Natural Bridges Drive
US Geological Survey Western Region Coastal and Marine Geology Team USGS Pacific Science Center
see Process Step
The 2003 sets were 100% complete
Parameters: * DYD <96> Decimal year day 2001; dates/times are local Hawaiian Standard Time (GMT-11:00). * h <96> Water depth in meters, calculated as the mean water depth from each hourly 512 s time series record. * 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, 3-11, 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. A NIWA Dobie-A non-directional wave gauge was used to acquire this dataset. The Dobie was used in Time Series mode and thus recorded a time series of pressure, which was converted to water depth assuming a water density and atmospheric pressure. Significant wave height (Hs) and dominant wave period (Td) were computed from these 512 s time series of water depth at 2 Hz using the US Army Corps of Engineers (1989) SUPERDUCK spectral method. The high-frequency and low-frequency cut-offs were 0.04 Hz / 25 s and 0.25 Hz / 4 s, respectively. References: Storlazzi, C.D., Field, M.E., Ogston, A.S., Logan, J.B., Presto, M.K. and Gonzales, D.G., 2004. <93>Coastal Circulation and Sediment Dynamics along West Maui, Hawaii, PART III: Flow and particulate dynamics during the 2003 summer coral spawning season<94> U.S. Geological Survey Open-File Report 2004-1287, 36 p. http://pubs.usgs.gov/of/2004/1287/ Please see the following for more information: http://walrus.wr.usgs.gov/infobank/a/a403hw/html/a-4-03-hw.meta.html
ASC-II tab-delimited text. Data gaps and null values are denoted by the -99999 delimiter. Directory /data/0-data (original files as received at NODC) Data File: MAU_2003_SSS_hHsTd.txt Description File: MAU_2003_hHsTd_descrip.txt Metadata File: SSS_NGDC_metadata_form.doc (MS Word) where SSS is the station code (see #SAMPLING STATIONS: above) Directory /data/1-data (files created by NODC) Metadata File: SSS_NGDC_metadata_form.txt where SSS is the station code (see #SAMPLING STATIONS: above) These are ASCII copies of the MS WORD metadata files found in /0-data.
None
SSMC-3 Fourth Floor
1315 East West Highway
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.
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.
1000 Pope Road, MSB 316
Dept. of Oceanography
University of Hawaii at Manoa
check services@nodc.noaa.gov if not available
