Arc Hydro: Difference between revisions

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* Linear referencing
* Linear referencing


=== Water budget ===
Hydro model for [[Novato Creek Watershed]]
 
[[File:NovatoStreamGage.jpg|frameless]]
 
So some guy in 1600's did a paper that said amount of water flowing into the sea was about the same as the rainfall. How did he get the numbers? I figure it must have been a pretty rough estimate.
 
Can I use modern tools to do my own estimate?
 
Given that
# Input: a watershed basin contains the rainfall.
# Output: river(s) are the outflow.
 
Input:
# Find the area of the watershed.
# Find the annual rainfall for the area.
 
Output:
# Find the flow rates and volumes
# Calculate total volume
 
The process
# Pick an area. I need good data. GIS + USGS stream data.
# Build a model.
# Run the model.
# Look at results
# Refine the model.
# Go to 3
 
== Stream gages ==
 
SO fine. I found the USGS NWIS web site and used it to look up the closest stream gaging station. I found the one on Copeland Creek.
But how does it WORK?
 
It's maintained by the county. It has a solar powered transmitter with what looks like a dual polarity 900 MHz SCADA antenna and possibly a temperature sensor.


== Resources ==
== Resources ==
Line 63: Line 30:


GIS For Water Resources: http://www.esri.com/industries/water_resources/
GIS For Water Resources: http://www.esri.com/industries/water_resources/
[[Category:GIS]]

Latest revision as of 19:08, 19 August 2015

The book

I have "Arc Hydro, GIS for Water Resources" dated 2002 edited by David R. Maidment. It is for surface water.

Now there's a newer book "Arc Hydro for Ground Water", 2011 but I don't have that one. Aquifers, wells, and subsurface water.

Where to get the software

The book came with a CDROM but it's old. Instead of even looking at it, download the correct version of Arc Hydro for your version of ArcGIS Desktop from http://downloads.esri.com/archydro/archydro/

Do I want the 32-bit or 64-bit version? I installed 64-bit "Background Geoprocessing" so I am trying 64-bit first.

How to

  • Watershed basin delineation with LiDAR
  • Precipitation and runoff
  • Water rights
  • Linear referencing

Hydro model for Novato Creek Watershed

Resources

ESRI Hydrology community page http://resources.arcgis.com/en/communities/hydro/

Arc Hydro for Ground Water wiki: http://archydrogw.com/Main_Page

GIS For Water Resources: http://www.esri.com/industries/water_resources/

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