Kern River, california; gauge problems

[Paul Martzen]

Flow information for the Kern River in California () comes from 3 different primary sources. 

Army Corp of Engineers.    https://www.spk-wc.usace.army.mil/fcgi-bin/hourly.py?report=isb

Southern Cal Edison.   I am trying to track down this gauge source.  Dreamflows does grab it and AW can grab it from dreamflows.  We should be working on getting data directly from SCE.

CDEC. https://cdec.water.ca.gov/cdecplotter/JspPlotAll?staid_id=KKV

AW also grabs data from the NOAA website which for unknown reasons reads too high..  NOAA seems get their data from CDEC or from the same gauge as CDEC.

The forks of the Kern flows will be some percentage of flows above Fairview and the Kern Headwaters run will be a smaller percentage of flows above fairview.

[Kevin Colburn]

Would you want to ping NOAA and ask them why their gage reads high and where they get it? 

I can ask CA staff about SCE. 

[Paul Martzen]

The below link is for Edison's flow information for flows: Above and Below Fairview Dam, and for the bypass canal below the dam.

https://www.sutronwin.com/scedison/tw/jsp/

A Kernville local got this Edison flow page for me.  He explained that Edison monitors the flow below their dam in the river and in their canal.  From that, they compute the flow above the dam.

The NOAA website https://water.noaa.gov/gauges/krvc1    just grabs data from the Army Corp gauge in Kernville and puts it in their format.  AW can grab data from NOAA, but not from Army Corp.  Dreamflows can grab directly from Army Corp.

Last week when I started looking at these gauges, the headwaters section and Forks of the Kern were using the NOAA gauge which was reading higher than gauges further downstream.  I knew that could not be right.  I suspect what was happening was that flows from the powerhouse were sometimes overlapping with higher flows in the river from when the powerhouse had not been diverting.  

It is irrelevant now, because I changed the gauges on the Headwaters, and Forks of Kern sections to Flows above Fairview Dam, from Dreamflows.  

I am hopeful that our web programers will figure out how to grab Army Corp data and how to grab data from private utilities.  Since AW negotiates with SC Edison, we should have them provide their information in a format that we can grab.

Paul

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