Novato Creek Watershed: Difference between revisions

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== Data sources ==
== Data sources ==


Local:
External links for resources; see also my [[Data Sources]].
National: USGS
 
Local: [http://marinmap.org/DNN/ MarinMap]]
 
National: USGS [http://maps.waterdata.usgs.gov/mapper/index.html NWIS mapper] | [Novato Creek Stream Gage http://waterdata.usgs.gov/nwis/wys_rpt/?site_no=11459500]
 
[[Category:GIS]]

Revision as of 19:19, 19 August 2015

2015 Aug 19 I have spent the last few months exploring the hills in this area, hiking and testing radios and geocaching.

Yesterday I started reading a hydrology book. (The title?) Some guy in 1600's did a paper that said amount of water flowing into the sea was about the same as the rainfall. (Citation needed :-) 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?

Hydrologic model

Stream Gage



Given that

  1. Input: a watershed basin contains the rainfall.
  2. Output: river(s) are the outflow.

Inputs:

  1. Find the area of the watershed.
  2. Find the annual rainfall for the area.

Outputs:

  1. Find the flow rates and volumes for the natural features.
  2. Find volumes for man-made features (outfalls).
  3. Calculate total volume.

The process:

  1. Pick an area. I need good data. Local water agency + USGS stream data + GIS.
  2. Build a model.
  3. Run the model.
  4. Look at results
  5. Refine the model.
  6. Go to step 3.

Area: Since I have spent so much time hiking and geocaching here, let's try the Novato Creek watershed

Data sources

External links for resources; see also my Data Sources.

Local: MarinMap]

National: USGS NWIS mapper | [Novato Creek Stream Gage http://waterdata.usgs.gov/nwis/wys_rpt/?site_no=11459500]