1 / 20

Nontidal Indicators for the Chesapeake Bay: Tracking Flow, Trends, and Loads

Learn about the various indicators and metrics to monitor nontidal systems in the Chesapeake Bay and proposed alternatives such as the River Input Monitoring Program (RIMP) estimates and the Hydrologic Simulation Program Fortran (HSPF) Approach. Discuss load estimates, modeling approaches, and data considerations.

paulos
Download Presentation

Nontidal Indicators for the Chesapeake Bay: Tracking Flow, Trends, and Loads

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Nontidal Indicators for the Chesapeake Bay Steve Preston Troy A. Keller Chesapeake Bay Program May 11, 2005

  2. Indicators for Nontidal • Number of different indicators metrics have been created to track nontidal systems: • Flow • Trend estimates (N, P, and Sediment) • • Loads (N, P, Sediment) • Others?

  3. Flow Indicator

  4. N Trend Indicator

  5. P Trend Indicator

  6. Sediment Trend Indicator

  7. N Load Indicator

  8. P Load Indicator

  9. Sediment Load Indicator

  10. Proposed Alternative • Estimate total load to the Chesapeake Bay using a combined modeling and measured approach: • River Input Monitoring Program (RIMP) estimates • • Hydrologic Simulation Program Fortran (HSPF)

  11. Approach • Idealized watershed model to indicate major loading categories: Fall Line Above Fall Line Bay Below Fall Line

  12. External Load Sources Atm on Bay Measured Modeled AFL point source BFL point source RIMP Bay AFL nonpoint source BFL nonpoint source

  13. Load Estimate

  14. Below Fall Line - NPS • Estimate below fall line loads from nonpoint sources using a ratio approach:

  15. Variables

  16. N Load Estimates

  17. P Load Estimates

  18. Sediment Load Estimates

  19. Mock Indicator Data

  20. Discussion Topics • Questions arising about data • Is this load estimate method acceptable? • How should we estimate loads for years without HSPF model runs? • What is the best way to estimate point source loads for non model years?

More Related