RT Journal Article
T1 A multi‑parametric perspective of the North Atlantic eddy‑driven jet
A1 Barriopedro Cepero, David
A1 Ayarzagüena Porras, Blanca
A1 García-Burgos, Marina
A1 García Herrera, Ricardo Francisco
AB The North Atlantic eddy-driven jet (EDJ) is an essential component of the Euro-Atlantic atmospheric circulation. It has been typically described in terms of latitude and intensity but this is not enough to fully characterize its variability and complex EDJ configurations. Here, we present a set of daily parameters of the EDJ based on low-tropospheric zonal wind data for the 1948–2020 period. They describe the intensity, sharpness, location, edges, tilt and other zonal asymmetries of the EDJ, therefore dissecting its structure beyond the latitudinal regimes. This allows for assessments of specific EDJ aspects and a multi-parametric treatment of EDJ configurations in a manageable way. Overall, variations in EDJ parameters reflect distinctive patterns of eddy forcing and wave breaking, with anticyclonic eddies playing a major role in shaping the EDJ structure. A multimodal behavior of the EDJ is only detected in latitude, which largely influences the longitudinal position of the EDJ. Other aspects of the EDJ are less constrained by the latitude and display a variety of configurations. Four multi-parametric states (northern, central, tilted and split EDJs) provide a satisfactory description of recurrent patterns of the EDJ. They participate in meridional migrations of the EDJ, but yield less dramatic transitions than viewed from the latitudinal perspective. Finally, the EDJ parameters help to better understand the EDJ influence on European climate. In many regions, latitude and intensity contain limited information on near-surface anomalies, and their signals can be masked by the additional effect of other EDJ parameters.
PB Springer
SN 0930-7575
YR 2022
FD 2022
LK https://hdl.handle.net/20.500.14352/99206
UL https://hdl.handle.net/20.500.14352/99206
LA eng
NO Barriopedro, D., Ayarzagüena, B., García-Burgos, M. et al. A multi-parametric perspective of the North Atlantic eddy-driven jet. Clim Dyn 61, 375–397 (2023). https://doi.org/10.1007/s00382-022-06574-w
NO Consejo Superior de Investigaciones Científicas
NO Ministerio de Ciencia, Innovación y Universidades (España)
DS Docta Complutense
RD 5 abr 2025