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Puget sound Watershed Characterization, Volume 4: Mid-Scale Assessment of Hydrologic Condition

Publication number Date Published
18-06-014July 2019
VIEW NOW Puget sound Watershed Characterization, Volume 4: Mid-Scale Assessment of Hydrologic Condition (Number of pages: 87) (Publication Size: 4763KB)

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Author(s) Stephen Stanley, Brad McMillian, Susan Grigsby and Colin Hume
Description The Puget Sound Characterization program has tested the potential application of a mid-scale tool known as the Hydrologic Condition Index for use throughout Puget Sound watersheds. The HCI index is based on detailed hydrologic modeling that generates coefficients predicting the “flashiness” of stream flows that a given combination of land cover and surficial geology would likely produce in a watershed. Preferred methods for calculation of the index are described based upon initial testing and validation using stream gage data in a series of watersheds in central Puget Sound.

Testing of the HCI index for “alternative futures” applications indicate potential as a useful tool in assessing implications of development patterns on the hydrologic health of a watershed. Use of this tool can assist local governments locate future development in a manner that minimizes impacts to watershed hydrological condition. Recommendations for further development of the mid-scale tool so that it can be applied regionally are provided.
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Keywords water quality processess, water flow processes, watershed characterization, watershed characterization analyses
WEB PAGE Puget Sound Watershed Characterization

Puget Sound Characterization - Volume 1: The Water Resource Assessments (Water Flow and Water Quality)

Characterization Results for Springbrook Creek Watershed, Bainbridge Island, Washington

Quality Assurance Project Plan Puget Sound Watershed Characterization Development & Testing of Mid-Scale Models & Updates to Broad Scale Assessment Models

Watershed Characterization for WRIA 7

The Puget Sound Watershed Characterization Project: Volume 2 (Habitat Assessments)

Users Guide for the Puget Sound Watershed Characterization - Draft, June 2013

Puget Sound Watershed Characterization - Introduction to the Water Flow Assessment for Puget Sound

Puget Sound Watershed Characterization Project: Description of Methods, Models and Analysis (Draft for Peer Review)

Watershed Characterization and Analysis of South Lewis County

River Basin Characterization