Science activity
Science activity #49855, updated 29 April 2022

CASCaDE II: Computational Asessments of Scenarios of Change for the Delta Ecosystem

Description / purpose

This proposal builds upon an existing model-based effort to develop a holistic view of the Bay-Delta-River-Watershed system. CASCaDE I developed a set of linked models to assess Delta ecosystem response to climate change. In CASCaDE II, we propose to refine and extend those modeling capabilities to assess Delta ecosystem response to changes in climate and physical configuration. With a new state-of-the-art hydrodynamic and sediment model at its core, CASCaDE II will link models of climate, hydrology, hydrodynamics, sediment, geomorphology, phytoplankton, bivalves, contaminants, marsh accretion, and fish. Our goals are to apply these linked models to 1) better understand Delta ecosystem function, 2) assess possible futures of the Delta under scenarios of climate and structural change, and 3) provide science-based information to support the DSC in its co-equal goals of water supply and ecosystem protection. The tools developed will provide an objective basis for anticipating and diagnosing Delta ecosystem responses to planned and unplanned changes. Experiments using the linked models are designed to address questions such as: How will climate change, together with new conveyance structures or increased flooded island habitat, alter water flow and drinking water quality? With projected changes in residence time, turbidity, temperature, and salinity, how will primary productivity, invasive bivalves, marsh processes, contaminant dynamics, and fish populations respond?

Linked science activities

None specified

Activity status

  • Awarded / Initiating (2011)
  • In progress / Ongoing (2011 - 2015)
  • Complete

Funding summary

Total allocated funding: $1,498,771

Label Value
Contract # or labor code 2040
Implementing organization U.S. Geological Survey [USGS]
Funding organization Delta Stewardship Council
Funding Source Delta Stewardship Council - General Fund
Date of award 2011
Date of fiscal year-end Not provided
Total award amount $1,498,771
State type of obligation Not provided
Federal type of obligation Not provided
Reimbursability Not provided
Procurement mechanism Not provided

Location

Subbasins
Delta regions

Geographic tags

None specified

Products and outputs

Type Title Products Description Impact
Link CASCaDE II: Computational Asessments of Scenarios of Change for the Delta Ecosystem 0 views

Type and context

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Management actions
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