PROJECT - Aerological sounding from Prague- tempereature in 15 standard levels

Aktualności: Prosimy o dodawanie na końcu wiadomości tagów w nawiasach kwadratowych, które pozwolą na szybsze wyszukiwanie interesującej treści.
Przykłady tagów: [2016] [pogoda] [burza] [prognoza] [grad]

Autor Wątek: PROJECT - Aerological sounding from Prague- tempereature in 15 standard levels  (Przeczytany 432 razy)

0 użytkowników i 1 Gość przegląda ten wątek.

Offline TommyAst

  • Junior Member
  • **
  • Wiadomości: 112
  • Reputacja: 18
There is aviable archive with aerological soundings since 1973 through whole world on the web server of University of Wyoming http://weather.uwyo.edu/ . Values from sounding are usually for 15 standard pressure levels and some specific levels. There are a lot of indexes from aerological soundings.

Standard pressure levels are: 925 hPa 850 hPa 700 hPa 500 hPa 400 hPa 300 hPa 250 hPa 200 hPa 150 hPa 100 hPa 70 hPa 50 hPa 30 hPa 20 hPa 10 hPa. Here in this project - all soundings are always from Czech station Praha Libus 11520.

Level 850 hPa is often discussed. The 850 hPa temperature marks, how warm is current air mass.

By University of Wyoming http://weather.uwyo.edu/ There was reached highest temperatures in level 850 hPa at least +22.0 °C (Only one highest value per every heat wave 1973-2017):

12.07.1984.00 +26.0 °C
27.07.1983.18 +24.8 °C
08.08.2013.00 +24.2 °C
20.08.2012.18 +24.0 °C
24.07.1988.06 +24.0 °C
27.08.2011.00 +23.8 °C
01.08.2017.06 +23.2 °C
16.07.2007.18 +23.0 °C
01.07.2012.00 +22.6 °C
21.07.1998.12 +22.6 °C
29.07.2005.18 +22.6 °C
31.07.1994.18 +22.6 °C
21.08.2000.00 +22.6 °C
29.07.2013.00 +22.4 °C Resp. 28.07.2013.00 +22.4 °C
09.08.1992.18 +22.4 °C
02.06.1994.18 +22.2 °C
13.08.2003.18 +22.2 °C
12.08.1998.18 +22.2 °C
06.07.2015.00 +22.0 °C
20.06.2013.12 +22.0 °C
03.08.1980.12 +22.0 °C
23.07.2009.12 +22.0 °C
15.08.1985.00 +22.0 °C
30.08.1977.12 +22.0 °C
15.06.1980.00 +22.0 °C

Maximum temperature in Czech Republic during heat waves in period 1961-2017, heat waves with maximum temperature in Czech republic at least +37.6 °C (Reference for 1961-2000 is NKP 30, Czech National Climatological Program No. 30, Old web of Czech Hydro-meteorological Institute old.chmi.cz is reference for period 2000-2010 and reference since year 2010 is web infomet.cz):

20.08.2012 Dobřichovice 40.4 °C
27.07.1983 Praha Uhříněves 40.2 °C
08.08.2015 Husinec řež 40.0 °C
08.08.2013 Brod nad Dyjí 39.7 °C
13.08.2003 Kopísty 39.5 °C
01.08.1994 Poděbrady 39.2 °C
05.07.2015 Husinec řež 39.2 °C
22.07.2015 Husinec řež 39.2 °C
21.07.1998 Louny 39.0 °C
14.08.2015 Řež u Prahy 39.0 °C Husinec řež 11.08.2015 +38.8 °C
03.08.2013 Brod nad Dyjí 38.7 °C
28.07.2013 Doksany 38.7 °C
11.07.1984 Žatec 38.6 °C
16.07.2007 Husinec Řež 38.6 °C
12.08.1998 Louny 38.5 °C
05.07.1999 Louny 38.5 °C
29.07.2005 Plzeň Mikulka 38.3 °C
03.08.2017 Strážnice 38.3 °C
22.06.2000 Brno Žabovřesy 38.2 °C
09.08.1992 Ústí N.L. město 38.0 °C
20.07.2006 Kopísty 38.0 °C
16.07.2010 Praha Řež 37.9 °C
22.07.1995 Velichovky 37.8 °C

Corelation of maximum temperature in level 850 Hpa from soundings Praha Libus 11520 and maximum temperature in Czech Republic during years 1973-2017:

Both values are not aviable for all heat waves.

12.07.1984.00 +26.0 °C 11.07.1984 Žatec 38.6 °C
27.07.1983.18 +24.8 °C 27.07.1983 Praha Uhříněves 40.2 °C
08.08.2013.00 +24.2 °C 08.08.2013 Brod nad Dyjí 39.7 °C, Highest minimum temperature in Czech ever recorded 08.08.2013 Bystrice pod Hostynem +27.2 °C
20.08.2012.18 +24.0 °C 20.08.2012 Dobrichovice +40.4 °C
24.07.1988.06 +24.0 °C
27.08.2011.00 +23.8 °C 26.08.2011 Strážnice 36.1 °C
01.08.2017.06 +23.2 °C 03.08.2017 Strážnice 38.3 °C
16.07.2007.18 +23.0 °C 16.07.2007 Husinec Řež 38.6 °C
21.07.1998.12 +22.6 °C 21.07.1998 Louny 39.0 °C
29.07.2005.18 +22.6 °C Plzeň Mikulka 38.3 °C
31.07.1994.18 +22.6 °C 01.08.1994 Poděbrady 39.2 °C
21.08.2000.00 +22.6 °C Asi nekde +36.7 °C, Slovensko +39.0 °C
29.07.2013.00 +22.4 °C Resp. 28.07.2013.00 +22.4 °C 28.07.2013 Doksany 38.7 °C
09.08.1992.18 +22.4 °C 09.08.1992 Ústí N.L. město 38.0 °C
02.06.1994.18 +22.2 °C
13.08.2003.18 +22.2 °C Kopísty 39.5 °C
12.08.1998.18 +22.2 °C 12.08.1998 Louny 38.5 °C
06.07.2015.00 +22.0 °C 05.07.2015 Husinec řež 39.2 °C
20.06.2013.12 +22.0 °C
03.08.1980.12 +22.0 °C
23.07.2009.12 +22.0 °C 23.07.2009 České Budějovice 36.8 °C
15.08.1985.00 +22.0 °C
30.08.1977.12 +22.0 °C
15.06.1980.00 +22.0 °C

T850 was not so high during heat waves in summer 2015:
T850 06.07.2015.00 +22.0 °C Tmax 05.07.2015 Husinec řež 39.2 °C, T850 08.07.2015.00 +21.8 °C.
During first half of august 2015 was maximum T850 only 08.08.2015.00 +21.4 °C, but Tmax in Czech Republic 08.08.2015 Husinec řež 40.0 °C.
T850 30.08.2015.12 +21.6 °C, Tmax 01.09.2015 Javornik +37.4 °C.
T850 18.07.2015.00 +21.8 °C, Tmax 22.07.2015 Husinec řež 39.2 °C.

Second highest minimum temperature in Czech Republic Tnx is 29.08.1992 Bystrice pod Hostynem +26.9 °C and maximum T850 Libus 29.08.1992.00 +21.6 °C.



There were reached T850 bellow -18.0 °C during arctic waves in winter (one lowest value for one event), data by University of Wyoming http://weather.uwyo.edu/:

01.01.1979.12 -25.7 °C
12.01.1987.12 -25.3 °C
06.02.1991.00 -21.9 °C
13.12.2001.12 -21.7 °C
05.02.2012.18 -20.7 °C
28.02.2018.06 -20.5 °C
06.01.1985.00 -19.3 °C
30.01.1987.00 -19.1 °C
07.01.1982.18 -18.9 °C
03.03.1987.12 -18.7 °C
05.01.1981.12 -18.1 °C
30.01.1999.06 -18.1 °C
26.02.1986.12 -17.9 °C

There was big and fast drop of temperature during New year eve 1978-1979, and it was only one event 1973-2017 with T500 highest than T850 (01.01.1979.12 T850 -25.7 °C T500 -24.9 °C, this is lowest T850 1973-2017). It was reached record low minimum temperature for whole Europe 31.12.1978 Ust-Shchugor (Republique des Komis) -58.1 °C during this event.

Rarely - T700 is higher than T850 and inversion between 850 hPa and 700 hPa.

Average temperature, maximum temperature, minimum temperature for 15 standard levels during period 2007-2017


There were four soundings per day 00 06 12 18 UTC until year 2012, but it have been 3 soundings per day 06 12 UTC since year 2013.

LEVEL 925 hPa 850 hPa 700 hPa 500 hPa 400 hPa 300 hPa 250 hPa 200 hPa 150 hPa 100 hPa 70 hPa 50 hPa 30 hPa 20 hPa 10 hPa
Average +7.420 °C °C +3.797 °C -4.369 °C -20.228 °C -31.956 °C -46.781 °C -53.975 °C -56.975 °C -55.893 °C -57.389 °C -58.089 °C -58.159 °C -57.284 °C -55.091 °C -48.140 °C
Maximum +31.0 °C +24.2 °C +10.4 °C -5.5 °C -17.7 °C -33.5 °C -39.5 °C -39.7 °C -42.1 °C -46.1 °C -46.7 °C -42.9 °C -35.5 °C -28.5 °C -11.7 °C
Minimum -17.9 °C -20.7 °C -26.5 °C -42.7 °C -51.7 °C -62.5 °C -67.3 °C -73.1 °C -78.1 °C -76.9 °C -80.7 °C -82.5 °C -84.7 °C -82.5 °C -80.3 °C

At first - monthly averages have been done, yearly averages from monthly averages and whole average 2007-2017 have been created from yearly averages.

DATA FOR DOWNLOAD:

MS Excell file - data, statistics, graphs 15 standard levels - temperature:
http://meteotommy.twilightsparkle.cz/CR/Prague_Libus_11520_Soundings_15_Standard_Levels_TEMP_2007_2017.7z

Images - graphs for 15 standard levels resp. 3 standard levels:
http://meteotommy.twilightsparkle.cz/OBR/Graphs_From_Work_With_Data_Articles_Forum_Etc/Aerology_University_Of_Wyoming_Praha_Libus_11520_15_Standard_Levels_2007_2017_TEMP/

Yearly graphs with all 15 standard levels and yearly graphs with 3 levels 850 hPa, 700 hPa, 500 hPa, graph with averages, maximum, minimum 2007-2017:
http://meteotommy.twilightsparkle.cz/CR/Prague_Libus_11520_Soundings_15_Standard_Levels_TEMP_2007_2017.7z

Image 1 - average value, maximum value, minimum value for whole period 2007-2017 with value description.
Image 2 - average value, maximum value, minimum value for whole period 2007-2017 without value description.



Offline TommyAst

  • Junior Member
  • **
  • Wiadomości: 112
  • Reputacja: 18
Odp: PROJECT - Aerological sounding from Prague- tempereature in 15 standard levels
« Odpowiedź #1 dnia: Sierpień 10, 2018, 23:22:14 pm »
Yearly graphs - temperature in all 15 standard pressure levels Praha Libus 11520. Graphs were created from all sounding termins. There are four sounding termins per day 00 06 12 18 UTC until year 2012 and three sounding termins per day 00 06 12 UTC since year 2013.


Offline TommyAst

  • Junior Member
  • **
  • Wiadomości: 112
  • Reputacja: 18
Odp: PROJECT - Aerological sounding from Prague- tempereature in 15 standard levels
« Odpowiedź #2 dnia: Sierpień 10, 2018, 23:25:49 pm »
Yearly graphs - temperature in three standard pressure levels 850 hPa, 700 hPa, 500 hPa, soundings from Praha Libus 11520. Graphs were created from all sounding termins. There are four sounding termins per day 00 06 12 18 UTC until year 2012 and three sounding termins per day 00 06 12 UTC since year 2013.

Red line - temperature in 850 hPa
Green line - temperature in 700 hPa
Blue line - temperature in 500 hPa

Offline TommyAst

  • Junior Member
  • **
  • Wiadomości: 112
  • Reputacja: 18
Odp: PROJECT - Aerological sounding from Prague- tempereature in 15 standard levels
« Odpowiedź #3 dnia: Sierpień 16, 2018, 00:32:59 am »
EDIT - there have been mistake in formula for computing statistics in March 2016. It have been repaired. Extremes for whole period 2007-2017 are the same, averages are little bit different, but it is very small difference.