Arc Hydro: Difference between revisions
Brian Wilson (talk | contribs) mNo edit summary |
Brian Wilson (talk | contribs) |
||
| Line 13: | Line 13: | ||
Do I want the 32-bit or 64-bit version? I installed 64-bit "Background Geoprocessing" so I am trying 64-bit first. | 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 | * Watershed basin delineation with LiDAR | ||
| Line 19: | Line 19: | ||
* Water rights | * Water rights | ||
* Linear referencing | * Linear referencing | ||
=== Water budget === | |||
[[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 == | == Stream gages == | ||
Revision as of 18:38, 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
Water budget
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
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/
