Short-term stratospheric ozone fluctuations observed by GROMOS microwave radiometer at Bern

Moreira, Lorena; Hocke, Klemens; Kämpfer, Niklaus (2018). Short-term stratospheric ozone fluctuations observed by GROMOS microwave radiometer at Bern. Earth, Planets and Space, 70(1) Springer 10.1186/s40623-017-0774-4

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The ground-based millimeter wave ozone spectrometer (GROMOS) has been continually measuring middle atmospheric ozone volume mixing ratio profiles above Bern, Switzerland (46.95°N, 7.44°E, 577 m), since 1994 in the frame of NDACC. The high temporal resolution of GROMOS (30 min) allows the analysis of short-term fluctuations. The present study analyses the temporal perturbations, ranging from 1 to 8 h, observed in stratospheric ozone from June 2011 to May 2012. The short-term fluctuations of stratospheric ozone are within 5%, and GROMOS appears to have relative amplitudes stable over time smaller than 2% at 10 hPa (32 km). The strongest natural fluctuations of stratospheric ozone (about 1% at 10 hPa) above Bern occur during winter due to displacements and deformations of the polar vortex towards mid-latitudes.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics
10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)

UniBE Contributor:

Hocke, Klemens and Kämpfer, Niklaus

Subjects:

600 Technology > 620 Engineering

ISSN:

1880-5981

Publisher:

Springer

Language:

English

Submitter:

Monika Wälti-Stampfli

Date Deposited:

26 Mar 2018 09:18

Last Modified:

01 Apr 2018 02:25

Publisher DOI:

10.1186/s40623-017-0774-4

BORIS DOI:

10.7892/boris.112603

URI:

https://boris.unibe.ch/id/eprint/112603

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