@Article{AnticoChouMour:2017:ZoDoWi,
author = "Antico, Pablo L. and Chou, Sin Chan and Mour{\~a}o, Caroline",
affiliation = "{Consejo Nacional de Investigaciones Cient{\'{\i}}ficas y
T{\'e}cnicas} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Centro Nacional de Monitoramento e Alertas de
Desastres Naturais (CEMADEN)}",
title = "Zonda downslope winds in the central Andes of South America in a
20-year climate simulation with the Eta model",
journal = "Theoretical and Applied Climatology",
year = "2017",
volume = "128",
number = "1/2",
pages = "291--299",
month = "Apr.",
abstract = "The Zonda wind is a local version of the alpine foehn in the
central Andes Mountains in South America. It blows on the eastern
slopes and produces an extremely warm and dry condition in
Argentina. In this study, the occurrence of Zonda wind events
during a 20-year simulation from the regional Eta model is
analyzed and results are compared to previous studies of Zonda
wind events based on weather observations. We define a set of
parameters to account for the zonal pressure gradient across the
mountain, vertical movement, and air humidity typical of Zonda
wind events. These parameters are applied to characterize Zonda
wind events in model run and to classify them as surface-level or
high-level episodes. The resulting annual distribution of Zonda
occurrences based on composite analyses shows a preference for
winter and spring with rare occurrences during summer. For the
surface-level Zonda wind events, the highest frequency occurs
during spring. Whereas surface-level Zonda wind episodes more
commonly initiate in the afternoon, high-level Zonda wind events
show no preference for a given initiation time. Our results are
mostly in agreement with previous observational results.",
doi = "10.1007/s00704-015-1709-2",
url = "http://dx.doi.org/10.1007/s00704-015-1709-2",
issn = "0177-798X",
language = "en",
targetfile = "antico_zonda.pdf",
urlaccessdate = "02 maio 2024"
}