Electronic Monitor Data for Lion -- June 26, 1998 through October 7, 1998.

As part of an ongoing research program, Ralph Taylor, a park VIP, used an electronic temperature monitor to monitor eruptions of Lion geyser. The following is the data he collected during the summer of 1998.

Intervals were computed by Ralph Taylor

Transcribed By Lynn Stephens



LION GEYSER		"Intervals from Ralph Taylor's Hobo Temp as of October 7, 1998"				

Message from Ralph:  The mean series interval and the intervals from 1st to 2nd		
and 2nd to 3rd eruptions have decreased throughout the summer.  Mean number of	
eruptions per series has fallen below 3, 2 is by far the most common series length.	

Summer
Season: Mean Series Interval (initial to initial):    	8:27:01
Median Series Interval (initial to initial):    8:01:36

Mean Time Between Series (last to initil):      6:32:05
Median Time Between Series (last to initil):  	6:04:00

Mean eruptions per series:                   	2.724
Median eruptions per series:                    2

Mean interval, initial to 2nd                   1:17:23
Median interval, initial to 2nd                 1:17:12

Mean interval, 2nd to 3rd                       1:08:08
Median interval, 2nd to 3rd                     1:06:00

Mean interval, 3rd to 4th                       1:04:11
Median interval, 3rd to 4th                     1:13:12

Mean interval, 4th to 5th                       1:08:09
Median interval, 4th to 5th                     1:07:12

Mean interval, 5th to 6th                       1:06:48
Median interval, 5th to 6th                     1:07:00

Date	Time	 Erupion	Interval	Interval	Visual	
Number		  Initial         eruption
in-series        to              start to 
Initial         next eruption
start

6/26/98	22:37:34 Initial				
6/26/98	23:55:34 #2				1:18:00			

6/27/98	9:57:10	 Initial	11:19:36	10:01:36	9:57	 Ralph Taylor
6/27/98	11:13:58 #2				1:16:48		11:13:27 Ralph Taylor
6/27/98	12:23:58 #3				1:10:00		12:23:15 Ralph Taylor
6/27/98	13:29:58 #4				1:06:00			

6/27/98	23:12:22 Initial	13:15:12	9:42:24		
6/28/98	0:29:34	 #2		                1:17:36			

6/28/98	9:12:46	 Initial	10:00:48	8:43:12 	9:13:38	 Ralph Taylor
6/28/98	10:32:22 #2	                        1:19:36		10:31:53 Ralph Taylor
6/28/98	11:36:46 #3				1:04:24		11:36:04 Ralph Taylor

6/28/98	19:30:22 Initial	10:17:36	7:53:36		
6/28/98	20:53:58 #2		                1:23:36			
6/28/98	21:59:10 #3		1:05:36			

6/29/98	12:07:34 Initial	16:37:12	14:08:24	12:07:07 Ralph Taylor
6/29/98	13:26:22 #2		                1:19:12		13:25:55 Ralph Taylor
6/29/98	14:31:58 #3				1:05:36		14:31:25 Ralph Taylor
6/29/98	15:38:22 #4				1:06:24		15:37:44 Ralph Taylor

6/30/98	4:09:58  Initial	16:02:48			
6/30/98	5:28:46  #2		                1:18:48		5:27	Steve Robinson
6/30/98	6:34:22  #3				1:06:00		6:34	Steve Robinson

6/30/98	12:35:34 Initial	8:25:36		6:01:12		
6/30/98	13:49:58 #2		                1:14:24		13:49ie	Ralph Taylor
6/30/98	15:07:34 #3				1:17:36			
6/30/98	16:07:10 #4				0:59:36		16:06:45 Ralph Taylor

7/1/98	0:49:10	 Initial	12:13:36	8:42:00		
7/1/98	2:09:10	 #2		                1:20:00			

7/1/98	10:14:46 Initial	9:26:00	        8:05:36 	10:14:30 Ralph Taylor
7/1/98	11:35:10 #2		                1:20:13			
7/1/98	12:35:58 #3				1:00:48			

7/1/98	21:15:34 Initial	11:00:48	8:39:36		
7/1/98	22:40:22 #2		                1:24:48			
7/1/98	23:53:34 #3				1:13:12