Station/Environmental Data Sets from Pump Casts

Land-Margin Ecosystem Research in the Columbia River Estuary is an interdisciplinary approach to investigating couplings between hydrological, geochemical and ecological processes within estuarine turbidity maxima. General hydrographic profiles indicate the nature of physical, biological, and particle stratification in the water column. From these data, the principle investigators determined depths to sample during pump casts. In addition, profiles of hydrographic and biophysical parameters may be used to explore potential links between or among these parameters and to verify instrument accuracy. The specific data set description is the following: Pump casts were conducted immediately following a CTD cast and are, thus, cross-referenced by CTD data parameters. Pump samples were collected from usually three depths per cast (near-surface, mid-depth, near-bottom), with PIs responsible for analyzing “core” parameters. These data are critical for many aspects of the study as they are used to construct dynamic models of the estuarine turbidity maxima at different tidal and flow regimes. See Simenstad et al. (1994) for a project overview.

Data and Resources

Field Value
access_constraints ["Use Constraints: None", "Access Constraints: None"]
bbox-east-long -123
bbox-north-lat 46.2667
bbox-south-lat 46.1667
bbox-west-long -124
contact-email csimenstad@lternet.edu
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "1999-01-01"}]
frequency-of-update annually
licence ["\nAlthough these data have been processed\nsuccessfully on a computer system at the U.S.\nGeological Survey, no warranty expressed or\nimplied is made regarding the accuracy or utility\nof the data on any other system or for general or\nscientific purposes, nor shall the act of\ndistribution constitute any such warranty. This\ndisclaimer applies both to individual use of the\ndata and aggregate use with other data. It is\nstrongly recommended that these data are directly\nacquired from a U.S. Geological Survey server, and\nnot indirectly through other sources which may\nhave changed the data in some way. It is also\nstrongly recommended that careful attention be\npaid to the contents of the metadata file\nassociated with these data. The U.S. Geological\nSurvey shall not be held liable for improper or\nincorrect use of the data described and/or\ncontained herein.\n"]
metadata-date 1998-06-15
metadata-language eng; USA
metadata_type geospatial
progress underDevelopment
resource-type dataset
responsible-party [{"name": "University of Washington, Fisheries Research Institute", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-124.0, 46.1667], [-123.0, 46.1667], [-123.0, 46.2667], [-124.0, 46.2667], [-124.0, 46.1667]]]}
spatial_harvester true
temporal-extent-begin 1990-01-01
temporal-extent-end 1999-01-01
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • columbia-river
  • columbia-river-lmer-project
  • environmental-data
  • geo
  • geoss
  • land-margins-ecosystems-research-project
  • lmer
  • national
  • north-america
  • or
  • oregon
  • station-data
  • united-states
  • wa
  • washington
isopen False
metadata_created 2025-11-20T03:35:15.232260
metadata_modified 2025-11-20T03:35:15.232263
notes Land-Margin Ecosystem Research in the Columbia River Estuary is an interdisciplinary approach to investigating couplings between hydrological, geochemical and ecological processes within estuarine turbidity maxima. General hydrographic profiles indicate the nature of physical, biological, and particle stratification in the water column. From these data, the principle investigators determined depths to sample during pump casts. In addition, profiles of hydrographic and biophysical parameters may be used to explore potential links between or among these parameters and to verify instrument accuracy. The specific data set description is the following: Pump casts were conducted immediately following a CTD cast and are, thus, cross-referenced by CTD data parameters. Pump samples were collected from usually three depths per cast (near-surface, mid-depth, near-bottom), with PIs responsible for analyzing “core” parameters. These data are critical for many aspects of the study as they are used to construct dynamic models of the estuarine turbidity maxima at different tidal and flow regimes. See Simenstad et al. (1994) for a project overview.
num_resources 3
num_tags 18
title Station/Environmental Data Sets from Pump Casts