Difference between revisions of "Tarsier journal: Carmel Watershed"

Revision as of 17:10, 6 July 2009

This page is intended to record a journal of data processing and analysis steps take by various folks in the Carmel Watershed using Tarsier. Its half scratch-pad, and half-tutorial.

Goals

• Get a watershed model up and running for the Carmel Watershed.

Obtaining a DEM

• Follow steps in Tarsier tutorial: Raster data and Tarsier tutorial: Raster resampler
  • Select a 1/3" NED DEM i.e. about 10 meters.
  • Select ArcGRID
  • Download data in GridFloat format
  • Change extension of main file from ".flt" to ".raw"
  • Open ".raw" file in Tarier, use the ".hdr" file to fill in properties
  • Save as Tarsier raster (.tra)
  • Convert raster from lat/long to UTM using raster resampler

Creating a Visualization of the Watershed

• Fallow steps in Tarsier tutorial: Renderer, Adding Agents, Tarsier tutorial: Simple fly-through and Tarsier: Importing shapefiles
  • Open a renderer veiw
  • Open Carmel 10m raster as well was terrain file made following renderer tutorial
  • Explore the terrain using the flight keys
  • Add cams to make a simple flight of what was thought to be whole length of the Carmel River
  • Add label agents and realize the flight began in Cachagua Creek instead of the Carmel River... Oops.
  • Redo the flight to fallow the Carmel River
  • Adjust the ins and outs of the cams to make the flight smother (this trick is not found on the flight wiki page yet... ill do that soon)
  • Use a more aesthetic color scheme (maybe make a tutorial on making and saving color schemes?)
  • Adjust the timing of the flight to be under a minute
  • Record the flight, view the flight and make necessary changes
  • Add vector data representing water in the channel
    • I used Arc to make the vector data because I did not know how to do it in Tarsier

Links

• Tarsier tutorials