User talk:HopsonRoad: Difference between revisions
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HopsonRoad (talk | contribs) →Needle ice or Ice lense?: Lab observations from cited source. |
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:It would be very interesting what she says, escpecially if there are different processes leading to ice lenses or needle ice (what are the differences?). Thank you for the very inspiring discussion.--[[User:Cactus26|Cactus26]] ([[User talk:Cactus26|talk]]) 07:39, 12 June 2013 (UTC) |
:It would be very interesting what she says, escpecially if there are different processes leading to ice lenses or needle ice (what are the differences?). Thank you for the very inspiring discussion.--[[User:Cactus26|Cactus26]] ([[User talk:Cactus26|talk]]) 07:39, 12 June 2013 (UTC) |
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::I asked "Have you ever seen ice lenses grow as (confined) needle ice in the lab--or have they always been solid ice?" The reply was: "Not always solid ice--sometimes they had a needle-like structure with some air in the 'void'". [[User:HopsonRoad]] 02:04, 13 June 2013 (UTC) |
::I asked "Have you ever seen ice lenses grow as (confined) needle ice in the lab--or have they always been solid ice?" The reply was: "Not always solid ice--sometimes they had a needle-like structure with some air in the 'void'". [[User:HopsonRoad]] 02:04, 13 June 2013 (UTC) |
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:::Very interesting. Then our speculations were not too bad. Surprisingly I haven't found anything like that in the literature yet. "Eislines aus Kammeis" seems to be appropriate, my first try "kammeisartige Eislinse" would perhaps match "needle-like structure with some air in the 'void'" even better. What do you think? --[[User:Cactus26|Cactus26]] ([[User talk:Cactus26|talk]]) 13:25, 13 June 2013 (UTC) |
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Revision as of 13:25, 13 June 2013
Nantucket's Climate
Hello. Thank you for your response. I neglected to add the primary source of my edit, Koppen's climate classification. Based on both the weather data provided on the page and Koppen's system, Nantucket indeed features a climate that borders between a humid continental climate and an oceanic climate. G. Capo (talk) 14:23, 17 September 2012 (UTC)
You're invited: Ada Lovelace, STEM women edit-a-thon at Harvard
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Snowdon
I have reverted your addition to Snowdon (apologies for the slightly acerbic edit summary!) which I suspect derived from a misunderstanding. There are very many mountains in Scotland higher than Snowdon (roughly 150 ?)even though in the Marilyn classification Ben Nevis is the parent peak. Regards Velella Velella Talk 20:10, 13 November 2012 (UTC)
- Ah, blissful ignorance on my part! No offense taken. Thanks for the clarifying note! Cheers, User:HopsonRoad 22:31, 13 November 2012 (UTC)
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DYK Micrometeorite
Hi there! Do you have time to look at Template:Did_you_know_nominations/Micrometeorite. One of the facts needs verification, but I can't seem to find where it is from. --Tobias1984 (talk) 08:25, 13 February 2013 (UTC)
- I've just gotten back from overseas travel. I'll see what I can do. User:HopsonRoad 11:33, 14 February 2013 (UTC)
- I've addressed the concerns expressed by User:Prioryman. User:HopsonRoad 23:24, 20 February 2013 (UTC)
- Cool. Would be nice to see the article on the front page. --Tobias1984 (talk) 06:24, 21 February 2013 (UTC)
- I've addressed the concerns expressed by User:Prioryman. User:HopsonRoad 23:24, 20 February 2013 (UTC)
DYK for Micrometeorite
 | On 24 February 2013, Did you know? was updated with a fact from the article Micrometeorite, which you created or substantially expanded. The fact was ... that micrometeorites contribute most of the extraterrestrial material that comes to Earth? The nomination discussion and review may be seen at Template:Did you know nominations/Micrometeorite. You are welcome to check how many hits the article got while on the front page (here's how, quick check) and it will be added to DYKSTATS if it got over 5,000. If you know of another interesting fact from a recently created article, then please suggest it on the Did you know? talk page. |
Graeme Bartlett (talk) 00:02, 24 February 2013 (UTC)
- And FYI, nowhere says it is needed to be a WP member to do what these guidelines do (If I am wrong, prvoe it). If you wrote that article, congratulations, but you don't own it, as you are apparently doing. Also, I did remove useless and unused parametres from GEOLOGY, I didn't performed an assessment. Tbhotch.™ bGrammatically incorrect? Correct it! See terms and conditions. 00:48, 25 February 2013 (UTC)
- I Thank you for the cleanup, Tbhotch. I'm sorry to have offended, but I don't see how you or I as non experts in a technical area can judge the importance to field of a given article. It seems to me to be the domain of those closely involved through a consensus process. This is what is stated at the link you provided, "Any member of the Geology WikiProject is free to add—or change—the rating of an article." We can certainly judge the quality of the article, however. Sincerely, User:HopsonRoad 04:23, 25 February 2013 (UTC)
Imaginary vandalism
Please refrain from making unconstructive edits to Wikipedia, as you did at Meteorite. Your edits appear to constitute vandalism and have been reverted or removed. If you would like to experiment, please use the sandbox. Thank you. User:HopsonRoad 20:35, 21 March 2013 (UTC)
- What are you talking about? Nobody has reverted my edit of Meteorite. In any case, if there's any kind of vandalism there, that's the addition of references of literature that doesn't actually support at all what is claimed in the article (a cancer that seems to spread quick on Wikipedia). Next time you should read what has been edited (what includes the references provided), instead of behaving like a bully. 81.60.184.246 (talk) 13:23, 24 March 2013 (UTC)
- My apologies. You are correct. I see that you reverted a spurious edit and that I didn't do my proper diligence. Thank you! It's just that I'm conditioned to seeing ISP users involved in mischief. I'm very sorry to have offended. You are welcome to erase this conversation from your talk page. Sincerely, User:HopsonRoad 15:12, 24 March 2013 (UTC)
- What are you talking about? Nobody has reverted my edit of Meteorite. In any case, if there's any kind of vandalism there, that's the addition of references of literature that doesn't actually support at all what is claimed in the article (a cancer that seems to spread quick on Wikipedia). Next time you should read what has been edited (what includes the references provided), instead of behaving like a bully. 81.60.184.246 (talk) 13:23, 24 March 2013 (UTC)
Needle ice or Ice lense?
Hello HopsonRoad, I got one question concerning your very illuminating photo on page Frost heaving: Is this needle ice or is this an ice lense? Concerning Hugh M. French needle ice is a small scale phenomenon, I'm pondiering if this ice isn't too massive for Ice needles. I've not found anything yet how ice lenses and needle ice are separeted or if there are intermediates. Regards --Cactus26 (talk) 09:38, 7 June 2013 (UTC)
- Yours is the conundrum of the cold-regions science world, Cactus26! Indeed, what you see is needle ice in the cavity where one would expect to see a melting ice lens. I've asked experts at the Cold Regions Research and Engineering Laboratory how to explain what we see here and they expressed puzzlement. I've looked inside of other end-of-season frost heaves, as recently as this year, and found needle ice within. All I can suggest is that ice being extruded through porous material into the forming lens comes through as needle ice, but is confined to be a lens, in effect. The circumstances haven't suggested the melting out of the ice lens and the later formation of needle ice. Sincerely, User:HopsonRoad 13:10, 7 June 2013 (UTC)
- HopsonRoad, thanks you so much for your comprehensive answer. If I understand correctly you're supposing water/ice lifted up by frost heave often initially forms needle ice and is altered to become an ice lense later by melting and refreezing or something like that (I've problems to understand your last sentence, could it be you mixed up "needle ice" and "ice lense"?). I haven't read this anywhere yet but I think for porose soil this is reasonable as long as the pressure put by overlying ground is not too strong. This is very surprising here, the load of overlying soil seams to be too strong. Additionally I think your photo suggests that there are indeed intermediate states between needle ice and ice lenses (as far as I can see). Surprisingly I haven't found anything about this in the literature yet. If this is such a special case then the usage on page frost heave is somewhat sophisticated. It may be a little bit confusing telling the full story here. I intend to use the description "kammeisartige Eislinse" in German ("needle ice like ice lense"). What do you think about this? Regards--Cactus26 (talk) 11:05, 8 June 2013 (UTC)
- Lieber Cactus26, ich bin nicht so sicher, dass "kammeisartige Eislinse" ist das richte Konzept. The real question is, how do ice lenses form? One can think of needle ice as a frost heave that forms on the surface, before the freezing front has penetrated very far into the soil as the water table feeds water up to the freezing front via capillary action. We see the needle ice because there is little overburden of soil or vegetation. As the freezing front penetrates deeper, the same phenomenon occurs, but now the needle ice is confined and out of sight. It can lift soil to cause a frost heave thanks to the added mass of water coming via capillary action from the water table below and the expansion of ice at the freezing front. Once confined, the confined needle ice may coalesce owing to pressure or thawing into a solid lens, as one sees in permafrost. My last sentence was intended to suggest that at the end of the season, the lens could melt out, leaving a cavity and be replaced by meedle ice. However, that's not what I believe you see in the picture. Perhaps I could suggest, "Eislinse von Kammeis".User:HopsonRoad 14:16, 8 June 2013 (UTC)
- HopsonRoad, I wasn't aware that there are many Americans speaking German but last time most Americans I met did. Remarkable. I'm afraid I can solve this puzzle. I've studied the literature and could not find any other definitions for needle ice as "diurnal cycle" and "at or just beneath ground surface". I haven't found anything about the relation of needle ice and ice lenses yet. All current studies concerning the details of frost heave mention needle ice merely anecdotal ([1], [2], [3]). I'm fighting to catch this mysterious phenomenon but I must admit this could be to hard for me. I'm not sure if capillarity is the crucial effect nor seems the enlargement of water when freezing. Also I don't know yet: Are the mechanics producing an ice lense (much) different from those producing needle ice? Your explanation that needle ice on the photo could have filled a void produced by an ice lense would at least be consistent with the explanations I found yet. But it's not your favorite if I got you right. I will try to continue studying this phenomenon. But I can't promise I will succeed. During this I will try the explanation: "Eislinse aus Kammeis" as you suggested ("aus" in this case is more suitable than "von", I must admit I can't explain why), although I've found no hint in the literature yet that there could be something like that.--Cactus26 (talk) 06:50, 10 June 2013 (UTC)
- Lieber Cactus26, ich bin nicht so sicher, dass "kammeisartige Eislinse" ist das richte Konzept. The real question is, how do ice lenses form? One can think of needle ice as a frost heave that forms on the surface, before the freezing front has penetrated very far into the soil as the water table feeds water up to the freezing front via capillary action. We see the needle ice because there is little overburden of soil or vegetation. As the freezing front penetrates deeper, the same phenomenon occurs, but now the needle ice is confined and out of sight. It can lift soil to cause a frost heave thanks to the added mass of water coming via capillary action from the water table below and the expansion of ice at the freezing front. Once confined, the confined needle ice may coalesce owing to pressure or thawing into a solid lens, as one sees in permafrost. My last sentence was intended to suggest that at the end of the season, the lens could melt out, leaving a cavity and be replaced by meedle ice. However, that's not what I believe you see in the picture. Perhaps I could suggest, "Eislinse von Kammeis".User:HopsonRoad 14:16, 8 June 2013 (UTC)
- HopsonRoad, thanks you so much for your comprehensive answer. If I understand correctly you're supposing water/ice lifted up by frost heave often initially forms needle ice and is altered to become an ice lense later by melting and refreezing or something like that (I've problems to understand your last sentence, could it be you mixed up "needle ice" and "ice lense"?). I haven't read this anywhere yet but I think for porose soil this is reasonable as long as the pressure put by overlying ground is not too strong. This is very surprising here, the load of overlying soil seams to be too strong. Additionally I think your photo suggests that there are indeed intermediate states between needle ice and ice lenses (as far as I can see). Surprisingly I haven't found anything about this in the literature yet. If this is such a special case then the usage on page frost heave is somewhat sophisticated. It may be a little bit confusing telling the full story here. I intend to use the description "kammeisartige Eislinse" in German ("needle ice like ice lense"). What do you think about this? Regards--Cactus26 (talk) 11:05, 8 June 2013 (UTC)
Eislinse aus Kammeis geht gut--es ist idiomatisch! You are correct that I don't believe that the needle ice replaced a lens of solid ice, which melted away. There are no remnants of such ice, yet there were small pockets of frost above the cavity. Thank you for your quest! I know the first author that you cite, personally. Perhaps I'll ask her some more direct questions. User:HopsonRoad 00:21, 12 June 2013 (UTC)
- It would be very interesting what she says, escpecially if there are different processes leading to ice lenses or needle ice (what are the differences?). Thank you for the very inspiring discussion.--Cactus26 (talk) 07:39, 12 June 2013 (UTC)
- I asked "Have you ever seen ice lenses grow as (confined) needle ice in the lab--or have they always been solid ice?" The reply was: "Not always solid ice--sometimes they had a needle-like structure with some air in the 'void'". User:HopsonRoad 02:04, 13 June 2013 (UTC)
- Very interesting. Then our speculations were not too bad. Surprisingly I haven't found anything like that in the literature yet. "Eislines aus Kammeis" seems to be appropriate, my first try "kammeisartige Eislinse" would perhaps match "needle-like structure with some air in the 'void'" even better. What do you think? --Cactus26 (talk) 13:25, 13 June 2013 (UTC)
- I asked "Have you ever seen ice lenses grow as (confined) needle ice in the lab--or have they always been solid ice?" The reply was: "Not always solid ice--sometimes they had a needle-like structure with some air in the 'void'". User:HopsonRoad 02:04, 13 June 2013 (UTC)