Continuous Rise of the Tropopause in the Northern Hemisphere Over 1980-2020

Lingyun Meng, Jane Liu, David W. Tarasick, William J. Randel, Andrea Steiner, Hallgeir Wilhelmsen, Lei Wang, Leopold Haimberger

Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed


Tropopause height (H) is a sensitive diagnostic for anthropogenic climate change. Past studies showed that H increased over 1980-2000, but were inconsistent in projecting H trends after 2000. While H generally responds to temperature changes in the troposphere and stratosphere, the relative importance of these two variations to H trends is uncertain. Here we use radiosonde balloon observations over land in the Northern Hemisphere (NH) over 20-80N to reveal a continuous rise of H over 1980-2020. Over 2001-2020, H increases at 50-60 m/decade, which is comparable to the trend over 1980-2000. The GPS radio occultation measurements from satellites and homogenized radiosonde records are in good agreement with those results. The continuous rise of the tropopause in the NH after 2000 results mainly from tropospheric warming. A large trend in H remains after major natural forcings for H are removed, providing further observational evidence for anthropogenic climate change.
FachzeitschriftScience Advances
PublikationsstatusVeröffentlicht - 5 Nov. 2021

ÖFOS 2012

  • 105206 Meteorologie