[Geysers] Website update and prediction times

Ralph Taylor ralpht at fuse.net
Wed Aug 18 11:35:24 PDT 2010


I have updated the GOSA website with the detailed information from last
week.  The individual geysers are all updated except Pink Geyser (note: not
Pink Cone, but Pink). 

The statistical summary is located at:

http://www.gosa.org/summaries/2010_Summary.pdf

I also post pages for selected geysers that contain the statistics, the last
18 or so eruption times and intervals, and a graph of the intervals for the
past month.  The current geysers so described and the URL for each are:

Geyser Hill:
Aurum:
http://www.gosa.org/geysers/aurum/articles/Aurum%20Statistics%202010.pdf
Beehive:
http://www.gosa.org/geysers/Beehive/articles/Beehive%20Statistics%202010.pdf
Depression:
http://www.gosa.org/geysers/depression/articles/Depression%20Geyser%20Statis
tics%202010.pdf
Plume:
http://www.gosa.org/geysers/plume/articles/Plume%20Geyser%20Statistics%20201
0.pdf

Other Upper Geyser Basin:
Artemisia:
http://www.gosa.org/geysers/artemisia/articles/Artemisia%20Statistics%202010
.pdf
Fan & Mortar
http://www.gosa.org/geysers/FAN/eruptions/Fan%20and%20Mortar%20Eruptions%20f
or%202010.txt
Grand:
http://www.gosa.org/geysers/Grand/articles/Grand%20Geyser%20Statistics%20201
0.pdf
Oblong:
http://www.gosa.org/geysers/oblong/articles/Oblong%20Statistics%202010.pdf
Rift:
http://www.gosa.org/geysers/rift/articles/Rift%20Statistical%20Summary%20201
0.pdf

Lower Geyser Basin:
Fountain Geyser:
http://www.gosa.org/geysers/Fountain/articles/Fountain%20Geyser%20Statistics
%202010.pdf
Great Fountain:
http://www.gosa.org/Geysers/GREATFOUNTAIN/articles/Great%20Fountain%20Geyser
%20Statistics%202010.pdf

A couple of things: Stephen Eide noted that one of the Beehive eruptions I
have posted is in error--it was a long indicator only.  I will correct that
when I process this week's Beehive data.

In general, I update the geyser sheets as I process each geyser data set.  I
do not update the summary sheet until I am finished; I will try to remember
to update the current sheet from time to time as I am working on the
analysis so that the most recent data is available.

I was asked what the current intervals in use by the Rangers at the OFVC
[only six more days to say that--then it will be the OFVEC].  Here are the
current prediction intervals:

Geyser                                     Prediction              Window

Old Faithful

Long (duration > 3m30s)                   93 minutes              +/- 10m
Medium (between 2m30s and 3m30s)          85 minutes              +/- 10m
Short (duration < 2m30s)                  60 minutes              +/- 10m

Castle

After a major eruption                  	14 hours
+/- 1 hour
After the 1st post-minor major  		15 hours
+/- 1 hour

Grand                                     8h30m				+/-
2 hours
Daisy
Best -- use the interval from today
+/- 30m
Otherwise either
AM                                        2h15m				+/-
30m
PM                                        2h30m 			+/-
30m

Riverside						6h05m
+/- 30m
Great Fountain					11h0m
+/- 2 hours

Ralph Taylor





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