Goddard and Caldwell: Oahu, Hawaii surf observation data set for 1968 - 2004 (NODC Accession 0001754)

Metadata Updated: February 27, 2019

Surf reports are typically made several times per day at select locations around Oahu, primarily by Honolulu City and County lifeguards and the Surf News Network, Inc. Wave heights are reported in Hawaii Scale Feet, which systematically underestimates breaker size by as much as one-half. Although exactly when and why this tendency originated is highly disputed, it became the primary means of communicating surf size by the late 1960s. From publicly available surf reports and other notes from reputable surfers, Mr. Larry Goddard logged heights from 1968 through September 1987 and Mr. Patrick Caldwell has done similarly from September 1987 to 2004. The caretakers of the dataset typically cross-check observations among the various reporters for quality control. The daily value in the GC set represents the upper end of the reported height range, which is roughly equivalent to H1/10, for the observing time and location with the highest breakers along a given coast facing a similar direction. For the north shore, most observations are taken at Sunset Point, which is usually one of the areas of highest surf under the dominant northwest swells. For days of extreme surf with heights greater than 15 HSF, visual observations are reported from Waimea Bay, where breakers are closer to shore. For the south shores, Ala Moana is usually the reporting site. Observations from the west and east side of Oahu have also been recorded although these reports are of lower quality. Comparisons of the GC database to 1981-2002 data from NOAA buoy 51001, which is located roughly 400 km west-northwest of Oahu, show the north shore surf observations are temporally consistent with the shoaling-only, buoy-estimated breaker heights and have an uncertainty of 10 to 15% of the surf height.

Access & Use Information

Downloads & Resources

Dates

Metadata Date June 27, 2017
Metadata Created Date September 26, 2015
Metadata Updated Date February 27, 2019
Reference Date(s) January 4, 2011 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

Preview graphic

Additional Metadata

Resource Type Dataset
Metadata Date June 27, 2017
Metadata Created Date September 26, 2015
Metadata Updated Date February 27, 2019
Reference Date(s) January 4, 2011 (publication)
Responsible Party (Point of Contact)
Contact Email
Access Constraints Cite as: Caldwell, Patrick; US DOC/NOAA/NESDIS > National Oceanographic Data Center (2011). Goddard and Caldwell: Oahu, Hawaii surf observation data set for 1968 - 2004 (NODC Accession 0001754). Version 1.1. National Oceanographic Data Center, NOAA. Dataset. [access date], NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Bbox East Long -157.66
Bbox North Lat 21.69
Bbox South Lat 21.25
Bbox West Long -158.22
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Preview graphic
Graphic Preview File https://data.nodc.noaa.gov/cgi-bin/gfx?id=gov.noaa.nodc:0001754
Graphic Preview Type PNG
Guid gov.noaa.nodc:0001754
Harvest Object Id a12629f1-272c-4c7b-aa54-6eaf805e847d
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence accessLevel: Public
Metadata Language eng
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1968-08-01
Temporal Extent End 2004-09-30

Didn't find what you're looking for? Suggest a dataset here.