Greetings and Salutations,<BR>
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To go along with Tara's recent note, I've been thinking about what I saw prior to the Giant eruption on 4-29-08 because it didn't all make sense to me. Here is about what I remember happening. I arrived at Grand about 1450, I did not check by watch so that time is a guess based on the fact that Grand's pool was full and the rock ridges were just barely out of the water. Since the next Turban was at 1501, I must of arrived at Grand at 1450 or a few minutes after that. When I arrived at Grand Bijou was on. A minute or two later (again, I didn't look at my watch to check any time until the 1501 Turban) I looked at Giant and Bijou was off. I waited for the GHP call thinking (wrongly) someone was at Giant. A minute or two later it struck me I hadn't heard any call, so I looked at Giant and Bijou was erupting in a normal fashion. Turban started at 1501. I then looked down basin and saw Mastiff ie, and as I said something about it Giant started at 1502. <BR>
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But it didn't make sense that Bijou would come back on, but Giant erupt a few minutes later. I didn't think there was time for a good Giant hot period, then a restart, then Giant. I was assuming that when Bijou was on, that meant the GHP had ended. That may have been true last summer, but staring last fall there have been many GHP where Bijou is active during the GHP. My theory is that the GHP did start about the time I saw Bijou off for a short period of time. Later when I looked and saw Bijou on again, I now think it is possible, maybe likely, that the GHP was still in progress just with Bijou erupting during the GHP. This would make the general time from the start of the GHP (the Bijou pause) to the start of Giant about 8-9 minutes. This sounds reasonable and possible.<BR>
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If this theory is true, I am both relieved and troubled. Relieved because I was wondering if Giant could erupt on a GHP when Bijou was still on. So far all the GHP that included Bijou that have been recorded were weak, the longest being 4 minutes. So if my theory is correct and Giant can erupt on a GHP with Bijou.. It may just be that no one has been at Giant when the stronger GHP with Bijou have been occurring. I am troubled because it will be much tougher to monitor Giant from Grand. As it now stands, if you are at Grand and Bijou is on, you may be in the middle of a GHP or you may not. You can look for Mastiff, but it will be much tougher to conclude from Grand if a GHP is or has happened, I think you will need to be at Giant to be sure. <BR>
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Stephen Eide<BR>
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