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  • Bremer and Berger (J. Atmos. Solar Terr. Phys. 64 (2002) 805) applied a correction for trends in the NO concentration and alpha-eff in the interpretation of trends in the low frequency (LF) phase height measurements and obtained results less consistent with model simulations as well as the observed trends in mesospheric temperatures. The correction is shown to be too large most probably due to the application of inappropriate trends in alpha-eff of Chakrabarty (Adv. Space Res. 20 (1997) 2117), which yield a trend in electron density opposite to that which is observed. The discrepancy between the observational data and model-simulated trends of Bremer and Berger (2002) in the LF phase heights can be largely removed. Even more important, the trends in mesospheric temperatures inferred by Bremer and Berger ((2002) from LF phase heights without the inappropriate correction agree well with the results of analysis of a global set of results on trends in the mesospheric temperatures
  • Bremer and Berger (J. Atmos. Solar Terr. Phys. 64 (2002) 805) applied a correction for trends in the NO concentration and alpha-eff in the interpretation of trends in the low frequency (LF) phase height measurements and obtained results less consistent with model simulations as well as the observed trends in mesospheric temperatures. The correction is shown to be too large most probably due to the application of inappropriate trends in alpha-eff of Chakrabarty (Adv. Space Res. 20 (1997) 2117), which yield a trend in electron density opposite to that which is observed. The discrepancy between the observational data and model-simulated trends of Bremer and Berger (2002) in the LF phase heights can be largely removed. Even more important, the trends in mesospheric temperatures inferred by Bremer and Berger ((2002) from LF phase heights without the inappropriate correction agree well with the results of analysis of a global set of results on trends in the mesospheric temperatures (en)
  • Bremer and Berger (J. Atmos. Solar Terr. Phys. 64 (2002) 805) při interpretaci trendů v měřeních fázových výšek odrazu na nízkých frekvencích (NF) aplikovali opravy na trendy v koncentraci NO a alfa-eff a dostali výsledek méně konzistentní s modelovými simulacemi i pozorovanými trendy v teplotě mezosféry. Ukázali jsme, že oprava byla příliš velká, asi díky použití nesprávných trendů v alfa-eff (Chakrabarty, Adv. Space Res. 20 (1997) 2117), což vede k opačnému trendu v elektronové koncentraci, než je pozorovaný trend. Rozpor mezi modelovými a Bremer a Berger (2002) experimentálními trendy v NF fázových výškách lze do značné míry odstranit. Navíc trendy odvozené z pozorování Bremerem a Bergerem (2005) z NF fázových výšek bez nesprávné korekce dobře souhlasí s výsledky analýzy globálního souboru výsledků o trendech v teplotě mezosféry (cs)
Title
  • An explanation of discrepancy in mesospheric temperature trends derived from ground-based LF phase-height observations
  • An explanation of discrepancy in mesospheric temperature trends derived from ground-based LF phase-height observations (en)
  • Vysvětlení rozporu v trendech teplot v mezosféře odvozených z pozemních pozorování NF fázových výšek odrazu (cs)
skos:prefLabel
  • An explanation of discrepancy in mesospheric temperature trends derived from ground-based LF phase-height observations
  • An explanation of discrepancy in mesospheric temperature trends derived from ground-based LF phase-height observations (en)
  • Vysvětlení rozporu v trendech teplot v mezosféře odvozených z pozemních pozorování NF fázových výšek odrazu (cs)
skos:notation
  • RIV/68378289:_____/04:00104060!RIV/2005/AV0/A04005/N
http://linked.open.../vavai/riv/strany
  • 1727;1730
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(IAA3042101), Z(AV0Z3042911)
http://linked.open...iv/cisloPeriodika
  • č.18
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 554103
http://linked.open...ai/riv/idVysledku
  • RIV/68378289:_____/04:00104060
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Mesosphere; Long-term trends; LF phase heights (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [594367100832]
http://linked.open...i/riv/nazevZdroje
  • Journal of Atmospheric and Solar-Terrestrial Physics
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
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http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 66
http://linked.open...iv/tvurceVysledku
  • Laštovička, Jan
http://linked.open...n/vavai/riv/zamer
issn
  • 1364-6826
number of pages
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