Wikipedia:Reference desk/Archives/Science/2021 May 23

= May 23 =

What's the another name for 1998 Gujarat cyclone?
If Cyclone Tauktae is another name for 2021 Gujarat cyclone, then What's the another name for 1998 Gujarat cyclone? Rizosome (talk) 02:49, 23 May 2021 (UTC)
 * How do you know it had another name? ←Baseball Bugs What's up, Doc? carrots→ 03:03, 23 May 2021 (UTC)
 * It was called 03A. Indian Ocean cyclones started getting names in 2004. Abductive  (reasoning) 04:28, 23 May 2021 (UTC)


 * [Edit Conflict] There are currently around 14 different regional meteorological authorities in 8 different ocean basins responsible for naming tropical cyclones (aka hurricanes, typhoons, etc.), and they began doing so consistently at various different dates in or after 1945. Our article List of historical tropical cyclone names explains that the WMO/ESCAP Panel on North Indian Ocean tropical cyclones only began doing so from September 2004 (having spent 4 years arguing about the details), so before then the practice of naming North Indian Ocean cyclones by location and date (as for the 1998 Gujarat cyclone) was most often used. {The poster formerly known as 87.81.230.195} 90.197.27.217 (talk) 04:48, 23 May 2021 (UTC)
 * In theory, the WMO/ESCAP Panel on North Indian Ocean tropical cyclones could choose to assign names retroactively, like the name "Lucy" was retroactively assigned to an early hominid. --Lambiam 13:17, 23 May 2021 (UTC)
 * In theory, but what would be the point? Cyclones are given "popular" names when they're in progress because (a) it's uncertain where they're going to go, so a locational name might become incorrect, and (b) they're less confusing for the public than opaque catalogue designations like 03A (particularly when two or more are ongoing at once). After they're over a confirmed location/year name is more informative than a bare "popular" name, and specialist meteorological papers etc. can also use the catalogue designations. {The poster formerly known as 87.81.230.195} 90.197.27.217 (talk) 07:52, 24 May 2021 (UTC)
 * Per TPFKA above, as Tropical cyclone naming notes Tropical cyclones and subtropical cyclones are named by various warning centers to simplify communication between forecasters and the general public regarding forecasts, watches, and warnings. While anyone could do anything they wanted, I've never heard of tropical cyclones being named retroactively for historical cyclones.  In the North Atlantic basin, for example, there are several pre-naming cyclones which are just known by descriptive names such as the 1935 Labor Day hurricane (which was referenced in the film Key Largo), the 1915 Galveston hurricane, which may have been the most destructive storm in U.S. history, and the 1938 New England hurricane, AKA the Long Island Express hurricane. -- Jayron 32 11:42, 24 May 2021 (UTC)

What is this marine equipment?
This is evidentally some kind of decompression chamber, but is there a more specific identification for this type of craft? I checked several sources discussing Tektite that didn't mention it. – BMacZero (🗩) 17:22, 23 May 2021 (UTC)
 * If you mean the thing that the decompression chamber is standing on, isn't it just a barge? --184.145.50.201 (talk) 20:00, 23 May 2021 (UTC)
 * That is a good point; I mean the entire craft (a decompression chamber and I think a diving bell on a barge). It's possible that there is no specific name for a craft of this type and I'll just have to categorize it as a decompression chamber and a barge. – BMacZero (🗩) 03:57, 24 May 2021 (UTC)
 * Diving support vessel? This specific equipment looks like a one-off design for the Tektite project. The inverted "U"-shaped bracket raises/lowers the sphere (just to its left) to transfer divers to/from the submerged chamber. The horizontal tube to the left of the transfer vessel is the (de)compression chamber. See starting at 1:25 of . DMacks (talk) 04:28, 24 May 2021 (UTC)
 * This is the barge-mounted decompression facility. There is a spherical Personnel Transfer Capsule (PTC) that is raised and lowered between the barge and the underwater habitat. This mates to a Deck Decompression Chamber (DDC). You can see a couple of photos and read more about them here: --Amble (talk) 05:10, 24 May 2021 (UTC)
 * Excellent source, thank you. That has plenty of info. – BMacZero (🗩) 05:54, 25 May 2021 (UTC)