[pct-l] Sierra Snow

[PCT at DelNorteResort.Com (stillroaming)]

Hey Steve,

The effort you must have out into this is commendable! I'm going to pick at
it a bit, so don't yell at me. :)

The reliability of the UTY sensor is iffy at best. Last season the sensor
stopped reporting on April 17. The data was revised to 'missing', however
the raw data shows a value. Don't rely on raw values. You are using
'revised' data for your analysis, right? Following are links to UTY data
supporting my statement:

Tabular data:
http://cdec.water.ca.gov/cgi-progs/queryDaily?s=UTY&d=%202-Dec-2005+22:00&sp
an=8months

Graph data:
http://cdec.water.ca.gov/cgi-progs/histPlot?station_id=UTY&sensor_num=82&dur
_code=D&start_date=10%2F01%2F2004&end_date=now&geom=800x300

With that said, any data you collect on June 12th from the UTY sensor is
suspect. How many of the past 30 years actually had good 'revised' data from
the UTY sensor on June 12th? I'd be curious, I don't know.

Further, making de facto forecasts of snow conditions months in advance,
based on less than 30 years worth of averaged data is a questionable method.
It's been snowing in the Sierra's for a zillion years. 30 years worth of
averaged, probably flawed data from 2 sensors is not what I'd bet the ranch
on.

Just my opinion, not a professional one. I know how much fun it is to play
with data, so I can relate to what you are doing.

Have Fun,
Scott Parks

>>>>
The average "zero day" at UTY is 12 June. The average snow water content on
1
Dec at TUM is 3.76". An astonishing 80% of the time (over the past 26
years), if
the water content at TUM is less than 3.76", the zero day at UTY is *before*
12
June, and if the water content at TUM is more than 3.76", the zero day at
UTY is
*after* 12 June!
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