[Geysers] correction and question

[Ralph Taylor]

Sorry to chime in late, but I just finished the Grotto data analysis from
the logger.  Here is what I have (all times are electronic):
 
Start Time  	End Time          Interval    Duration
05 Aug 16:31	06 Aug 06:32	16:29		14:01
06 Aug 19:46	06 Aug 20:12	27:15		00:26
07 Aug 00:12	07 Aug 16:09	04:26		15:57
08 Aug 06:54	08 Aug 07:14	30:42		00:20
08 Aug 12:04	09 Aug 00:21	05:10		12:17
09 Aug 13:43	09 Aug 14:25	25:39		00:42
09 Aug 20:55	09 Aug 21:31	07:12		00:36
10 Aug 01:43	10 Aug 02:49	04:48		01:06
10 Aug 07:02	10 Aug 21:30	05:19		14:28

So, allowing for the delay of water reaching the sensor, the eruption at
19:44 on 8/6 lasted just 26 minutes, and was followed by a 15h57m marathon
starting at 00:12 on 8/7 

The 8/8 eruption starting at 6:53 lasted about 20 minutes (electronic),
agreeing with the information below

The 8/8 eruption starting at 12:03 ended at 00:21 for a duration
(electronic) of 12h17m

The 8/9 eruption starting at 13:41 ended at 14:25e, for a duration
(electronic) of 0h42m

The 8/9 eruption starting at 20:53 ended at 21:31e for a duration
(electronic) of 0h36m

Grotto started again at 01:43e and ended at 02:49e for a duration
(electronic) of 0h54m

Finally, the 07:01 eruption on 8/10 ended at 21:30e for a duration
(electronic) of 14h28m.

Ralph Taylor
________________________________

From: geysers-bounces at wwc.edu [mailto:geysers-bounces at wwc.edu] On Behalf Of
Lynn Stephens
Sent: Friday, August 10, 2007 7:53 AM
To: geyser observation reports
Subject: Re: [Geysers] correction and question


I think the clarification is in my report on Giant this morning, but just in
case, I'll review the times and dates again:
 
8/6 Grotto start 19:44 end between 16:30 and 17:30 8/7 duration about 21-22
hours.
 
8/8 Grotto start 06:53 duration ~ 25 minutes
      Grotto start 12:03, still ie 21:30, end probably before 2:00 8/9;
duration at least 9 1/2 hours,
 
8/9 Grotto 13:41 to 14:20
     Grotto 20:53 to ?
 
8/10 Grotto 1:40ie to 02:48
       Grotto 7:01
 
Lynn Stephens  
 


 


________________________________

	From: fanandmortar at hotmail.com
	To: geysers at wwc.edu
	Date: Wed, 8 Aug 2007 23:27:54 -0600
	Subject: [Geysers] correction and question
	
	
	Since I was the person who relayed the information, I wanted to make
a correction on the duration of the Grotto marathon that ended Friday,
August 3.  The listserv post said that the marathon lasted ~26h40m.
Something got miscalculated in the relay, because it was actually ~25h40m.
	 
	With that in mind, I'm curious about the Grotto marathon reported by
Scott Bryan.  His report for August 7 stated that Grotto was still ie at
1300, having started at 1944 on August 6.  Then his report for August 8
stated that Grotto ended before midnight (presumably on August 7), but he
gave a duration of "maybe 15 hours."  If it was indeed the same marathon,
however, the duration should have been over 24 hours.  Can someone clarify?
	 
	Thanks!
	 
	Tara Cross
	fanandmortar at hotmail.com
	
	
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