Wikipedia

Talk:Tamanrasset

Latest comment: 2 years ago by M.Bitton in topic Tamanrasset's name

I hardly understand what the weather data on this page (Tamanrasset Airport) is about.

Yesterday (28.7.2018) Tamanrasset Airport recorded all-time high of 40,8 °C ([1]) only few weeks after new record 40,5 °C on 12.6.2018 (whole amazing sequence of near 40 °C and two above 40 °C peaks: [2]) and the Town of Tamanrasset's record stays unbeaten at 41,6 °C. Such "low" all-time highs for Sahara are logical, since both Tamanrasset weather stations are at 1.377 [3] metres above sea level (!) high in the heart of Ahaggar Range, so they can not compete with lowlands, for example relatively nearby In Salah's record 50,6 °C (293 m) or two other relatively nearby records also set yesterday at Illizi 47,6 °C (567 m) or In Amenas 47,6 °C (549 m).

Despite what i mentioned on wikipedia for Tamanrasset's weather box [4] there are allegedly record highs for months: - June 44,7 °C - July 47,4 °C - August 47,4 °C - September 42,5 °C

in a town that hasn't ever seen 42 °C (in town) or 41 °C (at airport). Again logical as temperature records lower at a rate of about 1 °C every 100 metres. So if yesterday Illizi and In Amenas recorded 47,6 °C then about 800 metres higher Tamanrasset's temperature high must be about 7-8 degrees °C lower - which it of course was at above mentioned 40,8 °C. If it would really be 47,4 °C in 1.377 m high Tamanrasset then we should measure about 57-58 °C in over kilometre lower In Salah (using 1 degree per 100 metres estimate rate). Another thing. Tamanrasset's 1.377 m is almost as high as 850 hPa. So far i haven't heard of 850 hPa temperature higher than 41 °C, and even that was in Middle East. Sahara hasn't broken 40 °C level on 850 hPa as far as i know. So how can from 1.500 m (850 hPa) be 40 °C in extremely rare situation (maybe once in a century somewhere in Sahara) and then 7,4 degrees °C higher only 123 metres lower? Physics doesn't allow it.

Besides that i checked the source ([5]) that was used for meteo data in current weather box's Tamanrasset records. I was expecting some pre-WW2 source database that we so often see in Northern Africa - such as Kebili's pre-WW2 deluded record 55,0 °C that still stands (both still claimed by WMO and wikipedia) despite post-WW2 record that is only 48,5 °C. But no... The source doesn't support abovementioned 42,5s, 44,7s and 47,4s. The source's highest temps are mere 40 °C (rounded?!) in May and August. This 40 °C is true and sensible since Tamanrasset's 40,0+ °C record breaking flurry began in 2016, to be exact 18.6.2016 with 40,2 °C [6] and continued in 2017, to be exact 2.7.2017 with 40,4 °C [7] and now culminated with 40,5 °C and later 40,8 °C in Sahara's most severe heat wave in verified history in 2018, which i already mentioned. So, now i understand even less what 42,5s, 44,7s and 47,4s in Tamanrasset's weather box are about, since even the very source that supposedly claim 42,5s, 44,7s and 47,4s, in reality claims only 40s.

If we look at some more reliable locations and compare similar weather stations. Say Chihuahua City, Mexico at almost same height (1.415 m) as Tamanrasset and with similar lattitude and climate has all-time high 41,6 °C [8] or 41,4 °C [9], depends on source. No 44,7s and 47,4s here either. Just 40s and 41s as extremes, and a lot of 36-39s [10] as expected.

To conclude, there are tons of wikipedia data (i'm refering to weather data in wikipedia's weather boxes) of North Africa weather data with such deluded information that wikipedia shares. Other similar examples of unrealistic, faulty and deluded data in wikipedia's weather boxes include: (1) Kebili, Tunisia [11] ... for example in midst of unprecedented 2018 heat when nearby Ouargla set all-time verified African record with 51,3 °C, Kebili missed a record 48,5 °C by a mere 3 tenths since it was 48,2 °C that day (5.7.2018) [12] ... for measurements as 55s and 53,9s that are in Kebili's wikipedia article we should have 57s and 58s in towns like Touggourt or El Oued or Ouargla; (2) Al Azzizyah, Libya [13] ... even WMO forfeited pre-WW2 measurements including the famous 58,0 °C reading from 1922 but we still see 56,0 °C reading from 1923 [14] and bunch of unrealistic pre-WW2 50,0+ °C readings in wikipedia article; (3) Ghadames, Libya [15] ... same as i wrote for Kebili, it was not even close to bizarre 55,2 °C in this year's ultra-rare event when max was 3.7.2018 with 46,6 °C [16] which is near post-WW2 record of 48,4 °C; (4) Djanet, Algeria [17]; record reading 49,0 °C in May (!) is impossible since Djanet sits at 1.035 m high in Tassili n'Ajjer range. At 1 °C per 100 metres estimate we should have 56s and 57s in lowlands. Impossible, again. Plus the russian source [18], from which i could review the claim, does not operate. Even if we take account of questionable WW2 readings [19], where 41,1 °C is May record in Djanet, we can not explain 49,0 °C reading in May. (5) Ouargla, Algeria [20]; here is problematic all-time high 53,5 °C that of course is incorrect, since the actual record was set in 2018 at 51,3 °C and was 50,4 °C before that...

... and many more pre-WW2 databases with unrealistic data that wikipedia uses with full confidence.

I only wish someday wikipedia would get true and realistic data in weather boxes for weather stations (especially North African) since the current situation on wikipedia has nothing to do with reality, weather standards and is thus unusable for any purpose. 77.38.84.7 (talk) 11:41, 29 July 2018 (UTC) (Iztok Hohnjec, Celje, Slovenia)Reply

Tamanrasset's name

edit
Latest comment: 2 years ago2 comments2 people in discussion

Good evening M.Bitton.

The name "تمنغست" or "تامنغست" has been used on local newspapers and news agencies such as Ennahar[21], Echorouk[22] and APS[23] to refer to the Wilaya, as well as the Official Gazette[24][25][26][27][28][29] and in university name[30]. It is close to the Berber spelling "Tamenɣast".

Yours sincerely. يوسف قناوة (talk) 17:49, 7 September 2022 (UTC)Reply

@يوسف قناوة: In the edit summary, I was referring to the Tamazight names (the subject has been discussed extensively in the Algeria article, if you're interested in learning more about it). With regard to the Arabic names: while both are used, "تامنراست" is the common name. Try searching for it in the newspapers that you cited and you'll see what I mean, though a Google search (including the books) will give you a better result. I guess that's why it's used in the Arabic Wiki version. Best, M.Bitton (talk) 22:57, 7 September 2022 (UTC)Reply


References

  1. ^ http://www.mherrera.org/temp.htm
  2. ^ https://www.ogimet.com/cgi-bin/gsynres?ord=REV&ndays=50&ano=2018&mes=07&day=29&hora=23&ind=60680
  3. ^ https://www.ogimet.com/display_stations.php?tipo=AND&isyn=&oaci=&nombre=tamanrasset&estado=&enviar=Ver
  4. ^ https://en.wikipedia.org/wiki/Tamanrasset
  5. ^ http://www.weatherbase.com/weather/weather.php3?s=008606&refer=&units=us
  6. ^ https://www.ogimet.com/cgi-bin/gsynres?ord=REV&ndays=50&ano=2016&mes=07&day=29&hora=23&ind=60680
  7. ^ https://www.ogimet.com/cgi-bin/gsynres?ord=REV&ndays=50&ano=2017&mes=07&day=29&hora=23&ind=60680
  8. ^ https://en.wikipedia.org/wiki/Chihuahua_City
  9. ^ http://www.mherrera.org/temp.htm
  10. ^ https://www.ogimet.com/cgi-bin/gsynres?ord=REV&ndays=50&ano=2018&mes=07&day=29&hora=23&ind=76225
  11. ^ https://en.wikipedia.org/wiki/Kebili
  12. ^ https://www.ogimet.com/cgi-bin/gsynres?ord=REV&ndays=50&ano=2018&mes=07&day=29&hora=23&ind=60764
  13. ^ https://en.wikipedia.org/wiki/%E2%80%98Aziziya
  14. ^ https://www.wunderground.com/blog/weatherhistorian/questions-concerning-the-world-record-1364f-58c-at-al-aziza-li.html
  15. ^ https://en.wikipedia.org/wiki/Ghadames
  16. ^ https://www.ogimet.com/cgi-bin/gsynres?ord=REV&ndays=50&ano=2018&mes=07&day=29&hora=23&ind=62103
  17. ^ https://en.wikipedia.org/wiki/Djanet
  18. ^ http://climatebase.ru/station/60670/?lang=en
  19. ^ https://www.dwd.de/DWD/klima/beratung/ak/ak_606700_kt.pdf
  20. ^ https://en.wikipedia.org/wiki/Ouargla
  21. ^ "البحث". النهار أونلاين (in Arabic).
  22. ^ "البحث". الشروق أونلاين (in Arabic).
  23. ^ "بحث". |website=www.aps.dz
  24. ^ "untitled" (PDF) (in Arabic). pp. 17, 21.
  25. ^ "untitled" (PDF) (in Arabic). p. 16.
  26. ^ "untitled" (PDF) (in Arabic). p. 17.
  27. ^ "untitled" (PDF) (in Arabic). p. 13.
  28. ^ "untitled" (PDF) (in Arabic). pp. 14–15.
  29. ^ "untitled" (PDF) (in Arabic). p. 25.
  30. ^ "- الرئيسية - جامعة تامنغست". Archived from the original on 2022-08-02.
Add topic
Retrieved from "https://en.wikipedia.org/w/index.php?title=Talk:Tamanrasset&oldid=1212307460"