Predictive Cosumnes River Simulation Explanation and Download

Year
2017
  Categorization Standing Aboveground Carbon Total Nitrogen Leached Nitrous Oxide Leaching Groundwater Biodiversity
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About the Layers

These layers were developed to encompass and symbolize the range of variables and scenarios in this project. For each variable and scenario, we have two kmls to show the data. First, is a layer that sits on the ground and is semitransparent in order to allow easier viewing of the data along with satellite imagery. The second is a three dimensional extrusion of the value being symbolized (in addition to the color from the first kml). We have layers for:

Scenarios

  • Current
  • Restoration
  • Agriculture
  • Urban
  • Urban Solar

Variables

  • Total nitrogen leached
  • Standing aboveground carbon
  • Category determination
  • Change in groundwater depth
  • Percent Change in N2O Leached

An important note is that the simulations changed a representative, random sample of parcels between each scenario, so when viewing each variable, do not take the projections or classifications of the parcels as truth, but a representation of what a parcel with those characteristics would be like in the conditions of the scenario. For best viewing, turn Anisotropic Filtering to High and Antialiasing to Medium or High in the Tools->Options area. However, for best performance with the large number of parcels, you may need to turn these items to Off.

Methods for Layer Generation

After the scenarios were completed, we took the resulting data and removed parcels that didn't change between scenarios - essentially the urban parcels - in order to reduce the parcel count and improve performance in Google Earth. The removed parcels do have data, if necessary, but are not present in these layers for that reason. We then symbolized and exported the remaining parcels to KML (Google Earth) files for viewing. When you click on a parcel, that parcel's information will pop up, including graphs of the carbon and nitrogen values under each scenario. These graphs require an active internet connection as they make use of Google Charts to generate the charts based upon the information in the parcel. If you need a set of KMLs that does not require an active internet connection, please contact Nick Santos.

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