1 / 8

Loading Data into ArcHydro

Loading Data into ArcHydro. Computing Basin Characteristics. Directory Structure. Aggregation of Upstream Basin Characteristics. We need methods to account for the basin characteristics of upstream HUCs. Types of aggregation: Sum (drainage area) Area-weighted average (mean slope)

becca
Download Presentation

Loading Data into ArcHydro

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. Loading Data into ArcHydro Computing Basin Characteristics

  2. Directory Structure StreamStats Data Prep Workshop Oct 21-22, 2003

  3. Aggregation of Upstream Basin Characteristics • We need methods to account for the basin characteristics of upstream HUCs. • Types of aggregation: • Sum (drainage area) • Area-weighted average (mean slope) • Maximum (Max elev) • Minimum (Min elev) • Relief (Max – Min elev ) StreamStats Data Prep Workshop Oct 21-22, 2003

  4. Basin characteristic layers • These are grids that are used to compute basin characteristics • Continuous-surface • Mean-annual precipitation • Elevation (dem) • Categorical • Forested area • Lake/pond StreamStats Data Prep Workshop Oct 21-22, 2003

  5. Add a new data frame (map) StreamStats Data Prep Workshop Oct 21-22, 2003

  6. Run GetParameters StreamStats Data Prep Workshop Oct 21-22, 2003

  7. What about adding basin characteristics? • Currently this requires programming in VB and ArcObjects, using the APFramework • Eventually this will be streamlined so that a user can add simple characteristics in XML StreamStats Data Prep Workshop Oct 21-22, 2003

  8. Caveats • Make sure your basin characteristics are comparable to those that were used in the regression studies • Be wary of projection changes that may affect directional characteristics • Be wary of resolution changes that may affect basin characteristics StreamStats Data Prep Workshop Oct 21-22, 2003

More Related