Articles | Volume 2, issue 2
Research article
16 Apr 2021
Research article |  | 16 Apr 2021

The signature of the tropospheric gravity wave background in observed mesoscale motion

Claudia Christine Stephan and Alexis Mariaccia

Data sets

Radiosonde measurements from the EUREC4A field campaign Claudia Stephan, Sabrina Schnitt, Hauke Schulz, and Hugo Bellenger

Short summary
Vertical motion on horizontal scales of a few hundred kilometers can influence cloud properties. This motion is difficult to measure directly but can be inferred from the area-averaged mass divergence. The latter can be derived from horizontal wind measurements at the area’s perimeter. This study derives vertical properties of area-averaged divergence from an extensive network of atmospheric soundings and proposes an explanation for the variation of divergence magnitudes with area size.