Ulrike Langematz

Water vapour transport in the tropical tropopause region in coupled Chemistry-Climate Models and ERA-40 reanalysis data (2009)

Stefanie Kremser, Ingo Wohltmann, Markus Rex, Ulrike Langematz, Martin Dameris, Markus Kunze

In this study backward trajectories from the tropical lower stratosphere were calculated for the Northern Hemisphere (NH) winters 1995–1996, 1997–1998 (El Niño) and 1998–1999 (La Niña) and...

Towards a better representation of the solar cycle in general circulation models (2007)

Nissen, Katrin, Matthes, Katja, Langematz, Ulrike, Mayer, Bernhard

We introduce the improved Freie Universität Berlin (FUB) high-resolution radiation scheme FUBRad and compare it to the 4-band standard ECHAM5 SW radiation scheme of Fouquart and Bonnel (FB). Both...

Chemical reaction pathways affecting stratospheric and mesospheric ozone (2006)

Grenfell, John Lee, Lehmann, Ralph, Mieth, Peter, Langematz, Ulrike, Steil, Benedikt

Catalytic cycles and other chemical pathways affecting ozone are normally estimated empirically in atmospheric models. In this work we have automatically quantified such processes by applying a newly...

Chemical effects in 11-year solar cycle simulations with the Freie Universität Berlin Climate Middle Atmosphere Model with online chemistry (FUB-CMAM-CHEM) (2005)

Langematz, Ulrike, Grenfell, John Lee, Matthes, Katja, Mieth, Peter, Kunze, Markus, Steil, Benedikt, ...

The impact of 11-year solar cycle variations on stratospheric ozone (O3) is studied with the Freie Universität Berlin Climate Middle Atmosphere Model with interactive chemistry (FUB-CMAM-CHEM). To...