This data set contains coastal water quality parameters as measured at seven shoreline locations on the west side of the Island of Hawaii and one site on Lanai, Hawaii during 1988-2011. Each location had over 20 sub-sites for sampling. Most were sampled roughly 4 times per year though some only once annually and other years with as many as 11 observational visits. The water quality data comprise 14 parameters and were collected using well-established instruments and methodologies. Parameters are aspects of water chemistry including turbidity. This set does not include measurements of bacteria. The data are stored in spreadsheets of the same format, with one file per location.

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Water physical and chemical data were collected using current meter and bottle casts from the H.J.W. FAY and other platforms from May 16, 1977 to September 15, 1977. Data were submitted by Virginia Institute of Marine Science - Gloucester Point, as part of the Ocean Continental Shelf - Mid Atlantic (OCS - Mid Atlantic) project. Data were processed by NODC to the NODC standard Water Physical and Chemical (F014) format. The F014 format is designed to support studies of physical and chemical observations on the water column. Reported are measurements of temperature, salinity, conductivity, dissolved oxygen, nitrate, nitrite, ammonia, orthophosphate, and organic carbon. The format consists of four data record types, 80 characters in length, sorted by station and sequence numbers for proper order. The first nine columns for all records are to be used for file type (columns 1-3) and file identifier (columns 4-9). The file identifier, to be assigned by the originator, is an unique originator id for each data submission. After submission, the NODC reassigns to this field an unique NODC identifier for internal use.

Water physics and chemistry data were collected from bottle casts from the MAURY and other platforms from 01 July 1949 to 13 August 1982. Data were submitted by Johns Hopkins University; Chesapeake Bay Institute (JHU). Data were processed by NODC to the NODC standard F004 Water Physics and Chemistry format. The F004 format is used for data from measurements and analyses of physical and chemical characteristics of the water column. Among chemical parameters that may be recorded are salinity, pH, and concentration of oxygen, ammonia, nitrate, phosphate, chlorophyll, and suspended solids. Physical parameters that may be recorded include temperature, density (sigma-t), transmissivity, and current velocity (east-west and north-south components). Cruise and station information, including environmental conditions of the study site at the time of observations, is also included.