A review of recent progress in trends in the upper atmosphere

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F17%3A00479886" target="_blank" >RIV/68378289:_____/17:00479886 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jastp.2017.03.009" target="_blank" >http://dx.doi.org/10.1016/j.jastp.2017.03.009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jastp.2017.03.009" target="_blank" >10.1016/j.jastp.2017.03.009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A review of recent progress in trends in the upper atmosphere

Popis výsledku v původním jazyce

The anthropogenic emissions of greenhouse gases affect not only the weather and climate in the troposphere: they affect also long-term trends in the mesosphere-thermosphere-ionosphere system, where the amplitudes of anthropogenic changes are substantially larger than in the troposphere. The last four years have seen significant progress in investigating these trends but also some new puzzles have been created. Observations of the CO2 trend in the lower thermosphere appeared but their interpretation is a matter of debate. The role of ozone in mesospheric temperatures and E-region ionosphere has been confirmed and quantified. Agreement between observational and simulated trends in the thermospheric density, supported by satellite observations of radiative cooling was reached but the most recent result re-opened the problem. Much new partial information about trends in the ionospheric F region was reported. Also new information on other experimental trends helped to improve our understanding of long-term trends in the upper atmosphere. Significant progress has been reached in modelling the long-term trends: in a few parameters the agreement with observed trends is now not only quantitative but also qualitative. Several attempts to explain ionospheric trends without CO2 appeared but they are shown not to be correct: CO2 remains to be the primary (although not the only) trend driver. On the other hand, many open questions or puzzles, listed in Concluding remarks, remain to be investigated.

Název v anglickém jazyce

A review of recent progress in trends in the upper atmosphere

Popis výsledku anglicky

The anthropogenic emissions of greenhouse gases affect not only the weather and climate in the troposphere: they affect also long-term trends in the mesosphere-thermosphere-ionosphere system, where the amplitudes of anthropogenic changes are substantially larger than in the troposphere. The last four years have seen significant progress in investigating these trends but also some new puzzles have been created. Observations of the CO2 trend in the lower thermosphere appeared but their interpretation is a matter of debate. The role of ozone in mesospheric temperatures and E-region ionosphere has been confirmed and quantified. Agreement between observational and simulated trends in the thermospheric density, supported by satellite observations of radiative cooling was reached but the most recent result re-opened the problem. Much new partial information about trends in the ionospheric F region was reported. Also new information on other experimental trends helped to improve our understanding of long-term trends in the upper atmosphere. Significant progress has been reached in modelling the long-term trends: in a few parameters the agreement with observed trends is now not only quantitative but also qualitative. Several attempts to explain ionospheric trends without CO2 appeared but they are shown not to be correct: CO2 remains to be the primary (although not the only) trend driver. On the other hand, many open questions or puzzles, listed in Concluding remarks, remain to be investigated.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10510 - Climatic research

Projekt

<a href="/cs/project/GA15-03909S" target="_blank" >GA15-03909S: Scénář dlouhodobých trendů v systému stratosféra-mezosféra-termosféra-ionosféra</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Atmospheric and Solar-Terrestrial Physics

ISSN

1364-6826

e-ISSN

—

Svazek periodika

163

Číslo periodika v rámci svazku

SI

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

2-13

Kód UT WoS článku

000413798000002

EID výsledku v databázi Scopus

2-s2.0-85016763697