Talk:Cumulus cloud/Archive 1

Picture
That NOAA picture is imsive, but I don't think it shows the typical cumulus formation so I uploaded one of my own. No offense meant. Koyaanis Qatsi, Friday, July 19, 2002

Always makes me laugh at this site when templates take more room than the article. 91.153.58.207 10:20, 3 April 2007 (UTC) Bad image that I made, if someone has a better one please delete this.Dreg743 08:35, 4 April 2007 (UTC) Abbreviations in the article. the same.

Really unclear
I have to admit that this article needs a lot of fixing-up. Need to define a lot of concepts (they produce wind??), better sentence formatting, etc. --Gabycs 21:15, 18 May 2007 (UTC)

hey who wrote this its great —Preceding unsigned comment added by 66.214.171.70 (talk) 01:48, 10 June 2008 (UTC)


 * Excuse me? You might need a lesson in WP:OWN :D. Anyways, even though I only have a basic understanding of the subject, I'm working on the refs. IceUnshattered (talk) 00:49, 13 August 2008 (UTC)

It doesn't say how the clouds are formed as well. I searched it up and this didn't even tell me how they are formed. How am I supposed to pass this project if it doesn't tell me? — Preceding unsigned comment added by 204.219.240.21 (talk) 12:03, 19 April 2016 (UTC)

Removal of copy-edit tag
This page seems to no longer need copy-editing. Any comments? If nobody disagrees, I'll remove the copy-edit tag in a week. GFett (talk) 09:04, 28 August 2008 (UTC)
 * Go ahead. There's still a lot to be improved, but I think there's no problem with rm'ing the tag. I c eUnshattered  [ t ] 16:49, 28 August 2008 (UTC)

classification
I substituted the infobox to allow for multiple classifications (low-level or vertical, depending on size). See also talk:cloud. 69.140.152.55 (talk) 00:51, 14 September 2008 (UTC)
 * I'm not totally sure what you did, but thanks for taking care of that anyways :) I c eUnshattered  [ t ] 18:23, 14 September 2008 (UTC)

photo credit
I noticed that the amount of photo in cumulus mediocris was excessive in proportion to the text of that article, so I moved one photo to this article, where it would fit better, instead. The photo caption was written by User:Photofm and it appears that he is also the photographer as well. 69.140.152.55 (talk) 07:07, 15 September 2008 (UTC)
 * Hmmm...you started the gallery, right? Are you sure it's totally necessary? I like the congestus pic, but I'm not sure the mediocris is totally needed to illustrate the subject. I c eUnshattered  [ t ] 21:06, 15 September 2008 (UTC)
 * Not strictly necessary, no, but I think that the pictures make the article look nice, and besides, better here than there. And now that I have decided to collapse the gallery into the "forecast" section, the left side shows clouds that are associated with fair weather, and the right side shows clouds that may develop into showers or thunderstorms.  69.140.152.55 (talk) 22:51, 15 September 2008 (UTC)

Formation
"Cumulus clouds typically form when warm air rises and reaches a level of comparatively cool air,"

I won't get into an edit war, but as written, this implies that it needs a layer 'of comparatively cool air' to form. What actually happens is that a parcel of air, rising through convection WILL form a cumulus cloud, unless the ascent is stopped by reaching equlibruim with the surrounding air. i.e. where the rise of the air is prevented by meeting a layer of air that is warmer than the DALR. (inversion or stable layer) —Preceding unsigned comment added by Jgb2 (talk • contribs) 05:52, 9 October 2008 (UTC)

Removal of citation tag
I think I have cited all the relevant parts. Unless there is disagreement, I will remove the tag in 7 days —Preceding unsigned comment added by Jgb2 (talk • contribs) 05:53, 9 October 2008 (UTC)
 * It's been more than a week by my count. I'll rm it. Also, please sign your posts by typing four tildes ( ~) . Thanks, I c eUnshattered  [ t ] 22:07, 25 October 2008 (UTC)

Vague wording

 * Over the sea, cumulus clouds may be found in regularly spaced lines or patterns. The best examples of these lines are found in the trade winds, where they may extend for many miles.

The many miles wording is quite vague. Although there is nothing specific in the MOS about this, the usage of a unit of measure without a specific quantity appears to be incorrect usage. It can be improved by rewording it in one of the following ways:
 * If some representative distances can be found in primary references, use and cite those. (Recommended per MOS.)
 * Substitute wording that does not use units of measurement, such as "great distances".
 * -- B.D.Mills  (T, C) 23:29, 12 August 2009 (UTC)

proposals to merge

 * I suggest merging "Turkey tower" into this article, because Wikipedia is not a dictionary of slang.

69.251.180.224 (talk) 16:59, 4 August 2010 (UTC)
 * I also suggest merging the three articles on towering cumulus clouds; I shall start a discussion here.

Formation section
RE kindly asked me to look, admittedly at the climate section, but I think the formation section needs work too. I think that stuff like meaning that the enthalpy flow through the system boundary is very low is too technical - well, it is for me - and needs to be pushed down. OTOH, the second-phase wet-adiabatic bit fails to emphasise the positive feedback element of formation. I think the Langmuir stuff needs rework too. However this may reflect my perspective on these, which is to try to fit them into the global climate system William M. Connolley (talk) 22:02, 23 October 2012 (UTC)
 * Thanks! I'll try to rewrite this in a slightly less technical manner, possibly by removing the explanation of "adiabatic", since anybody who wants to understand that could follow the wikilink. Reaper Eternal (talk) 20:11, 24 October 2012 (UTC)

Continuing at my snail's pace, I think:


 * Rain forms in a cumulus cloud via a process involving two non-discrete stages. The first stage occurs after the droplets coalesce onto the various nuclei. Langmuir writes that surface tension in the water droplets provides a slightly higher pressure on the droplet, raising the vapor pressure by a small amount. The increased pressure results in those droplets evaporating and the resulting water vapor condensing on the larger droplets. Due to the extremely small size of the evaporating water droplets, this process becomes largely meaningless after the larger droplets have grown to around 20 to 30 micrometers, and the second stage takes over.[6] In the accretion phase, the raindrop begins to fall, and other droplets collide and combine with it to increase the size of the raindrop. Langmuir was able to develop a formula[note 1] which predicted that the droplet radius would grow unboundedly within a discrete time period.[7]

should be moved to its own article. This stuff is common to all clouds, I think, not just cumulus. Perhaps Cloud physics? (I'd have called it cloud microphysics) William M. Connolley (talk) 18:30, 11 November 2012 (UTC)
 * Well, it isn't common to cirrus or cirrostratus clouds, and possibly others. I'd support keeping it in the article anyway as a short summary of how cumulus clouds are formed, because otherwise readers would constantly be flipping between pages to learn about the various aspects of cumulus clouds. Reaper Eternal (talk) 16:08, 28 November 2012 (UTC)

The Langmuir part in the initial section is way too technical for an intro section. Jgb2 (talk) 09:57, 23 December 2012 (UTC)

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