development of aquatic ecosystem models n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Development of Aquatic Ecosystem Models PowerPoint Presentation
Download Presentation
Development of Aquatic Ecosystem Models

Loading in 2 Seconds...

play fullscreen
1 / 28

Development of Aquatic Ecosystem Models - PowerPoint PPT Presentation


  • 178 Views
  • Uploaded on

Development of Aquatic Ecosystem Models. Lizhu Wang, Shaw Lacy, Paul Seebach, Mike Wiley Institute for Fisheries Research MDNR and U of M. Project Objectives. Develop statewide models for predicting stream flows and summer water temperature;

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Development of Aquatic Ecosystem Models' - jerzy


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
development of aquatic ecosystem models

Development of Aquatic Ecosystem Models

Lizhu Wang, Shaw Lacy, Paul Seebach,

Mike Wiley

Institute for Fisheries Research

MDNR and U of M

project objectives
Project Objectives
  • Develop statewide models for predicting stream flows and summer water temperature;
  • Develop models describing relationships among base flow, water temperature, and trout population;
  • Test model sensitivity by incorporating site-specific data from Augusta Creek;
  • Evaluate effectiveness of catchment BMPs in offsetting ground water withdraw.
slide3

The Key Step: Describe relationships among flow, temperature, and trout

TROUT

FLOW

TEMPERATURE

build statewide gis databases
Build Statewide GIS Databases

Identify stream measuring unit

slide5

Michigan

1:100,000 NHD

38,000 inter-confluence stream reaches

build statewide gis databases1
Build Statewide GIS Databases

Delineate catchment boundaries for each unit

build statewide gis databases2
Build Statewide GIS Databases

Synthesize landscape & instream characteristics for each stream unit

slide10

Reach of Interest

Reach of Interest

Reach of Interest

Reach of Interest

synthesize landscape data
Synthesize Landscape Data
  • Land use/land cover
  • Surficial geology – texture & formation
  • Soil permeability
  • Bedrock depth & geology
  • Average annual growing degree days
  • Average annual precipitation
  • Air temperature
  • Ground water delivery potential – Darcy
  • Land use transformation model output
synthesize network instream data
Synthesize Network & Instream Data
  • Arc gradient
  • Catchment gradient
  • Arc sinuosity
  • Arc stream order, linkage number
  • Arc fragmentation by dams and linkages with lakes and large rivers
variables and scales
Variables and Scales
  • The database contain about 300 variables.
  • The data are organized into 5 scales
  • Channel
  • Riparian (arc)
  • Riparian (entire)
  • Watershed (arc)
  • Watershed (entire)

From Paul Steen, 2004

build sampled databases
Build Sampled Databases

Link sampled flow, temperature, and trout data with each stream unit

slide15

Develop Summer Water Temperature Model

  • Collected continuous summer water temperature from about 500 sites throughout Michigan.
  • Developed geo-statistical and generalized additive regression models for July mean ---- Temperature kriging + residual modeling (Mallow’s Cp, Min AIC).
  • Model explains 77% variance.
slide17

Flow Models

Based on 83 sites that have >20 years flow data

  • Multiple regression models for predicting annual and August 5%, 10%, 25%, 50%, 75%, 90%, 95% exceeding flows;
  • Models explain 78 – 97% variance.
slide19

Stream Sites Sampled for Fish Community

Based on fish data from about 1500 sites

slide20

Link flow, Temperature, and Trout

(hypothetical model)

Cold

Typical

Marginal

July mean water temperature oC

slide21

Cold

Typical

Marginal

slide22

Link flow, Temperature, and Trout

(hypothetical model)

Cold

Typical

Marginal

July mean water temperature oC

slide23

Cold

Typical

Marginal

slide24

Augusta Creek Watershed

  • Max July Temp Difference
  • 1) ± 4°C (± 7.2°F)
  • 2) ± 7°C (± 12.6°F)
  • 3) ± 4°C (± 7.2°F)
  • 4) ± 11.5°C (± 20.7°F)
  • 5) ± 5°C (± 9°F)
  • 6) ± 10.5°C (± 18.9°F)
  • 7) ± 6.5°C (± 11.7°F)
  • 8) ± 8°C (± 14.4°F)
  • ± 7.5°C (± 13.5°F)

5. 4.

7.

3. 9.

6. 8.

2.

1. (trib)

Gull Lake

N

summary
Summary
  • Identified stream measuring unit;
  • Delineated catchment boundaries of each unit;
  • Synthesized landscape & instream characteristics of each unit;
  • Linked sampled data for trout, flow, and tempertaure with each stream unit.
  • Developed models for prediction of flow and temperature.
  • Partially built models linking trout, flow, and temperatur.
  • Collected temperature and fish data from Augusta Creek.