The North Delta Routing and Survival Management Tool

Understanding how routing modifications influence survival of juvenile salmon is complex because reach-specific survival and routing at key river junctions in the North Delta each have a different relationship with river flow. Therefore, to facilitate understanding of how routing modifications at key river junctions influence through-Delta survival, we developed this spreadsheet model to allow managers to explore the potential effects of modifying routing. The purpose is to provide a screening tool that allows managers to quickly run many different scenarios to understand how both routing and route-specific survival interact to affect overall survival through the Delta. This tool may be useful in narrowing the range of potential scenarios that might be investigated using more complex modeling techniques (e.g., agent-based models) and eventually evaluated with field studies.

Data and Resources

Field Value
accessLevel public
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catalog_@id https://ddi.doi.gov/usgs-data.json
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identifier http://datainventory.doi.gov/id/dataset/usgs-6446bff0d34ee8d4adec6c01
metadata_type geospatial
modified 2023-04-25T00:00:00Z
old-spatial -121.9400, 37.7751, -121.2506, 38.6040
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 8e893cb6f701f2b9f5208b86ac979e49195c2d522f46384dbd2d6cb2367a2a4a
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-121.9400, 37.7751], [-121.9400, 38.6040], [ -121.2506, 38.6040], [ -121.2506, 37.7751], [-121.9400, 37.7751]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • biota
  • chinook-salmon
  • migration
  • salmon
  • survival
  • telemetry
  • usgs-6446bff0d34ee8d4adec6c01
isopen False
license_id notspecified
license_title License not specified
maintainer Russell W Perry
maintainer_email rperry@usgs.gov
metadata_created 2025-09-24T21:04:44.556709
metadata_modified 2025-09-24T21:04:44.556718
notes Understanding how routing modifications influence survival of juvenile salmon is complex because reach-specific survival and routing at key river junctions in the North Delta each have a different relationship with river flow. Therefore, to facilitate understanding of how routing modifications at key river junctions influence through-Delta survival, we developed this spreadsheet model to allow managers to explore the potential effects of modifying routing. The purpose is to provide a screening tool that allows managers to quickly run many different scenarios to understand how both routing and route-specific survival interact to affect overall survival through the Delta. This tool may be useful in narrowing the range of potential scenarios that might be investigated using more complex modeling techniques (e.g., agent-based models) and eventually evaluated with field studies.
num_resources 1
num_tags 15
title The North Delta Routing and Survival Management Tool