Description
This dataset includes geochemical, physical, and biological data collected in the Columbia River Estuary and the Fraser River from 1990 to 1999 as part of the Columbia River Estuary Turbidity Maxima (CRETM) research project. This dataset includes temperature, salinity, sigma-theta, and current meter data, as well as optical backscattering, chlorophyll a concentration, beam attenuation, and percent transmissivity measurements of pure water from pump casts and associated CTD casts. This dataset also includes zooplankton species, individual densities, total densities, phaeopigments, suspended particulate matter (SPM), particulate organic carbon (POC), particulate nitrogen, particulate organic nitrogen, rates of primary production per hour, and other microbiological data. 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.
The CRETM project, part of the National Science Foundation (NSF) Land-Margin Ecosystem Research (LMER) research program, is an ecosystem-scale, interdisciplinary investigation of the role of estuarine turbidity maxima (ETM) in shaping the food web of the Columbia River estuary.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Oregon State University, College of Earth, Ocean, and Atmospheric Sciences (OSU-CEOAS) website | Unknown | Institution web page | Open resource |
| Oregon State University, College of Earth, Ocean, and Atmospheric Sciences (OSU-CEOAS) website | Unknown | Institution web page | Open resource |
| Oregon State University, College of Earth, Ocean, and Atmospheric Sciences (OSU-CEOAS) website | Unknown | Institution web page | Open resource |
| https://depts.washington.edu/cretmweb/ | Unknown | project website | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords | Open resource |
| NCEI Dataset Landing Page | Unknown | Navigate directly to the URL for a descriptive web page with download links. | Open resource |
| NCEI Contact Information | Unknown | Information for contacts at NCEI. | Open resource |
| NCEI Contact Information | Unknown | Information for contacts at NCEI. | Open resource |
| Granule Search | Unknown | Search for data granules belonging to this collection (a granule is the smallest aggregation of data that can be independently described and retrieved). | Open resource |
| US National Oceanographic Data Center (NODC) website | Unknown | Institution web page | Open resource |
| US National Oceanographic Data Center (NODC) website | Unknown | Institution web page | Open resource |
| University of California, Davis website | Unknown | Institution web page | Open resource |
| Louisiana Universities Marine Consortium (LUMCON) website | Unknown | Institution web page | Open resource |
| UW School of Oceanography website | Unknown | Institution web page | Open resource |
| Oregon Health and Science University (OHSU) website | Unknown | Institution web page | Open resource |
| Portland State University (PSU) website | Unknown | Institution web page | Open resource |