[Scorecard] [Fwd: Re: [Fwd: draft Technical Reports]]

[Bob Zlomke]

Rainer,

I don't remember discussing April - June discharge at all.  It sounds
like a better metric than what we have, from your description.

Bob 

-----Original Message-----
From: scorecard-bounces at sonomacreek.net
[mailto:scorecard-bounces at sonomacreek.net] On Behalf Of Rainer Hoenicke
Sent: Thursday, October 02, 2008 12:14 PM
To: scorecard at sonomacreek.net
Subject: [Scorecard] [Fwd: Re: [Fwd: draft Technical Reports]]

Dear all -

I asked Mik to take a look at the draft sections of the report that are
in his realm of expertise. See below for his comments.

One question I had, but which may have already been discussed, is: Why
did we not choose the mean monthly discharge at Agua Caliente and Oak
Knoll normalized for preceding annual rainfall?  What we observed at Oak
Knoll is that the average monthly discharge after 1980 for the months of
April-June is much lower than it used to be, i.e., the annual hydrograph
"tail" descends sooner in the late spring and extends for longer periods
than it used to, despite slight increases in dry-season flows overall.  
Did you guys discuss this at some point?

Rainer

-------- Original Message --------
Subject: 	Re: [Fwd: [Scorecard] draft Technical Reports]
Date: 	Thu, 2 Oct 2008 11:35:32 -0700 (PDT)
From: 	mikolaj at sfei.org
To: 	Rainer Hoenicke <rainer at sfei.org>
References: 	<48E3FE62.8030408 at sfei.org>



Watershed Health Scorecard Comments

I have a few very minor comments regarding the flow precipitation and
ground water sections of the Scorecard Report. In my opinion, in the
future some of the indicators should be normalized by parameters that
represent the climate. For example, the water table could be normalized
by the annual (or multi year) precipitation. This could help to
eliminate the strong influence of climate on some of the scores. The
same approach could apply to the stream flow that could be expressed as
a ratio of monthly flow to monthly precipitation. The average daily flow
values may be not sensitive enough to the anthropogenic processes within
the watershed.

Mikolaj

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-- 

Rainer Hoenicke, Ph.D.
Deputy Director
San Francisco Estuary Institute
7770 Pardee Lane
Oakland, CA 94621
510-746-7381
www.sfei.org


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