Hydrophysical, hydrochemical, and other data were collected from CTD and pump casts in the Columbia River Estuary from 09 July 1996 to 06 March 1998. Data was collected as part of the Columbia River Land-Margin Ecosystem Research (LMER) Project. Data include water depths, temperatures, salinities, sigma-thetas, optical backscattering, chlorophyll a concentrations, beam attenuations, and percent transmissivities of pure water. CTD data, unless otherwise noted, were taken on the downcast and the resulting salinity and temperature profiles were used to select pump depths on the following upcast.

This dataset includes geochemical and associated physical data (depth, water temperature, salinity, density) collected using pump casts at fixed locations in the Lower Columbia River estuary from May 5, 1995 to March 6, 1998 (not inclusive) as part of the Columbia River Turbidity Maximum/Land Margin Ecosystem Research (CRETM/LMER) project. Data were submitted by Dr. Frederick Prahl, Oregon State Univ., College of Ocean and Atmospheric Sciences, Corvallis, OR.

This dataset includes the 1990, 1991 and 1992 Phytoplankton and Geochemical data from the Columbia River Turbidity Maximum (CRETM) / Land Margin Ecosystem Research Program (LMER). There are 2 metadata files, 3 station data files, 3 phytoplankton data files, and 3 geochemical data files, which were extracted from Station data files. The metadata files explain the parameters found within the phytoplankton and geochemical data sets.

This collection includes station and environmental datasets from pump casts and associated CTD casts collected for the Columbia River LMER and Columbia River Turbidity Maximum (CRETM) projects. Pump cast sampling, and associated CTD casts took place from a fixed vessel during one 28-35 day cruise per year in 1990, 1991, 1992, 1995, and 1996. During 1997 and early 1998, there were 2 week "seasonal" cruises in May, July, and October (1997) and February to March (1998). During 1999, sampling was conducted for two weeks in June on the Columbia River and for two weeks in July on the Fraser River in British Columbia, Canada.

Zooplankton densities, zooplankton species identities, chlorophyll, transmissivity, and temperature data were collected from the ROBERT GORDON SPROUL, WECOMA, and CLIFFORD A. BARNES from May 5, 1997 to March 4, 1998. These data were submitted by the University of Washington as part of the Columbia River Estuarine Turbidity Maximum (CRETM) project. Data were collected using CTD and pump casts in the Columbia River estuary - Washington/Oregon.

This dataset contains 1990, 91, 92 and 1995 zooplankton species (scientific names), individual densities, total densities and optical backscattering data collected in the Lower Columbia River estuary on the Clifford A. Barnes, Wecoma, R/V Sproul. The data files include the CRETM zooplankton data format and metadata, species list and the data for each field period. These data were received from the CRTEM/LMER web server. They are "coastal ocean" data sets. The PI is Mr. Charles A. Simenstad, Univ. of Washington, Fisheries Research Institute, Seattle, WA.

Data were collected from 6 component projects from Tomales Bay, California, from 19 March 1987 to 21 September 1996. Data were collected as part of the Land Margin Ecosystem Research (LMER) Project and the Biogeochemical Reactions in Estuaries (BRIE) Project. The component projects were biotic variables in the water column, water composition, dissolved load water composition, particulate load composition, sediment nutrient fluxes, and water temperature with descriptive text.

Water physical and chemical data were collected using current meter and bottle casts from the COLUMBUS ISELIN, JOHN SMITH, and other platforms from October 23, 1975 to November 6, 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.

This dataset comprises Columbia River current data from 1967 to 1973 collected from current meters attached to buoys as part of the AEC sponsored Columbia River Project, including current speed and direction, and U and V vectors.

Current meter data were collected using moored current meter casts in the Columbia River estuary - Washington/Oregon from August 13, 1979 to September 27, 1984. Data were submitted by Oregon State University as part of the Low Level Waste Ocean Disposal project. Data were processed by NODC to the NODC standard Current Meter Data (F015) format. The F015 format is used for time series measurements of ocean currents. These data are obtained from current meter moorings and represent Eulerian method of current measurement, i.e., the meters are deployed at a fixed point and measure flow past a sensor. Position, bottom depth, sensor depth, and meter characteristics are reported for each station. The data record comprises values of east-west (u) and north-south (v) current vector components at specified date and time. Current direction is defined as the direction toward which the water is flowing with positive directions east and north and negative directions west and south. Data values may be subject to averaging or filtering and are typically reported at 10-15 minute time intervals. Water temperature, pressure, and conductivity or salinity may also be reported. A text record is available for optional comments.