<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/>  <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> From Ralph Taylor 22 August 2004<o:p></o:p> <o:p> </o:p> Gordon Bower wrote:<o:p></o:p> <o:p> </o:p> Depression was usually seen once per day. The one day it was seen twice,<o:p></o:p> the eruptions were just under 11 hours apart. The other days, the observed<o:p></o:p> eruptions were remarkably close to 22 hours apart. It *might* really be<o:p></o:p> very regular at the moment (or it might still be wildly erratic): Ralph,<o:p></o:p> hopefully, will reveal all in due time.<o:p></o:p> <o:p> </o:p> Well, I can’t reveal ALL, but Depression has been increasing its intervals steadily since 1998, when intervals<o:p></o:p> were around five to six hours.  The intervals climbed to nearly nine hours (average) by mid-2002, then sharply<o:p></o:p> decreased at the time of the <st1:place w:st="on">Denali</st1:place> quake.  Since November of 2002 the intervals have been climbing steadily<o:p></o:p> and the incidence of REALLY long (over 14 hours) intervals went from one or two per year in 2001 and 2002 to<o:p></o:p> nearly a dozen this year.<o:p></o:p> <o:p> </o:p> Since late June intervals have been slowly increasing, varying between nine and fourteen hours but typically <o:p></o:p> between ten and eleven hours.  Wind seems to have a greater effect than in the past, possibly because<o:p></o:p> of Depression Geyser losing some of its energy and/or water supply and therefore being almost at the point <o:p></o:p> of erupting for a longer time.  During the time of Gordon’s report (17-21 August) intervals varied from just <o:p></o:p> under ten hours to 13 hours.  For those days the eruption times were:<o:p></o:p> <o:p> </o:p>             Eruption time        Interval<o:p></o:p> <o:p> </o:p> <table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width=262 style='width:157.0pt;margin-left:-.6pt;border-collapse:collapse'> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt'> 17-Aug-04 02:44:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.57361111111111118"> 13:46:00<o:p></o:p> </td> </tr> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt' x:num="38216.525729166664"> 17-Aug-04 12:37:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.41180555555555554"> 9:53:00<o:p></o:p> </td> </tr> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt' x:num="38216.979895833334"> 17-Aug-04 23:31:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.45416666666666666"> 10:54:00<o:p></o:p> </td> </tr> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt' x:num="38217.454895833333"> 18-Aug-04 10:55:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.47499999999999998"> 11:24:00<o:p></o:p> </td> </tr> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt' x:num="38217.943784722222"> 18-Aug-04 22:39:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.48888888888888887"> 11:44:00<o:p></o:p> </td> </tr> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt' x:num="38218.353506944448"> 19-Aug-04 08:29:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.40972222222222227"> 9:50:00<o:p></o:p> </td> </tr> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt' x:num="38218.791006944448"> 19-Aug-04 18:59:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.4375"> 10:30:00<o:p></o:p> </td> </tr> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt' x:num="38219.2340625"> 20-Aug-04 05:37:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.44305555555555554"> 10:38:00<o:p></o:p> </td> </tr> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt' x:num="38219.775034722225"> 20-Aug-04 18:36:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.54097222222222219"> 12:59:00<o:p></o:p> </td> </tr> <tr height=22 style='height:13.2pt'> <td width=188 nowrap height=22 valign=bottom style='width:113.0pt;padding: 0in 5.4pt 0in 5.4pt;height:13.2pt' x:num="38220.192395833335"> 21-Aug-04 04:37:03<o:p></o:p> </td> <td width=73 nowrap height=22 valign=bottom style='width:44.0pt;padding:0in 5.4pt 0in 5.4pt; height:13.2pt' x:num="0.41736111111111113"> 10:01:00<o:p></o:p> </td> </tr> </table> <o:p> </o:p> There was only one North Goggles eruption during Gordon’s stay, on 19 August at 1858.<o:p></o:p> <o:p> </o:p> Lion is having series anywhere from five to fifteen hours apart.  I haven’t noticed any more (or less) variability<o:p></o:p> In recent years.  As far as I can tell, the bubblers have been useless as indicators for a few years now.  <o:p></o:p> <o:p> </o:p> Little Cub is having long periods of splashing without really erupting in the night and early morning hours; this <o:p></o:p> started last fall and continues to date.  Some intervals between actual eruptions have been in excess of six hours, <o:p></o:p> but none of these has occurred after mid-morning.  There seems to be a lot more water flowing from some crevices<o:p></o:p> between laminations of Little Cub’s end of the mound lately.  Although Lion is having series with up to six eruptions <o:p></o:p> (including minor eruptions), it is still the case that 60% of the series have two eruptions.  Incidentally, the long series<o:p></o:p> Intervals generally have been extended by a large preplay splash out of Lion, which seems to delay the <o:p></o:p> subsequent initial by an hour or two.<o:p></o:p> <o:p> </o:p> I’ve probably said too much!<o:p></o:p> <o:p> </o:p> Ralph<o:p></o:p> </div> </body> </html>