Articles | Volume 8, issue 3
Research article
26 Sep 2017
Research article |  | 26 Sep 2017

Climatology of Lyapunov exponents: the link between atmospheric rivers and large-scale mixing variability

Daniel Garaboa-Paz, Jorge Eiras-Barca, and Vicente Pérez-Muñuzuri

Data sets

The ERA-Interim reanalysis: configuration and performance of the data assimilation system ( D. P. Dee et al.

MEI Index, National Oceanic and Atmospheric Administration (NOAA) K. Wolter

An extension of the Tahiti-Darwin southern oscillation index ( C. F. Ropelewski and P. D. Jones<2161:AEOTTS>2.0.CO;2

Detection of atmospheric rivers: evaluation and application of an algorithm for global studies ( B. Guan and D. E. Waliser

Development of a 50-year high-resolution global dataset of meteorological forcings for land surface modeling ( J. Sheffield, G. Goteti, and E. F. Wood

Short summary
For the first time, a climatology of Lyapunov exponents (FTLE) for the period 1979–2014 has been established. This climatology is able to reproduce the main large-scale structures observed in the troposphere. The mean FTLE has been shown to correlate with the baroclinic Eady growth rate within timescales of a few days. As a case study, the contribution of atmospheric rivers to this climatology and their contribution to rainfalls over the Sahara and UK regions have been studied.
Final-revised paper