Inhalt des Dokuments
Determining Hydroclimatic Extreme Events Over the South-central Andes
- Seasonal mean rainfall for (DJF) generated by the TRMM 3B42 datasets, during (1998-2013) (left) and seasonal mean wind speed and wind vectors for (DJF) at 850hPa, generated by the CCLM, during (1980-2013) (right).
[1]
- © M. Ramezani Ziarani (GFZ)
Maryam Ramezani
Ziarani
Fakultät VI - Planen Bauen
Umwelt, Technischen Universität Berlin
Institut für Erd- und
Umweltwissenschaften, Universität Potsdam
GFZ
Potsdam
The south-central Andes in NW Argentina are
characterized by a strong rainfall asymmetry. In the east-west
direction exists one of the steepest rainfall gradients on Earth,
resulting from the large topographic differences in this region. In
addition, in the north-south direction the rainfall intensity varies
as the climatic regime shifts from the tropical central Andes to the
subtropical south-central Andes. This study focuses on the
investigation of the hydroclimatic extreme events over the
south-central Andes. In this study, we use TRMM (Tropical Rainfall
Measuring Mission) data, GPS data, meteorological re-analysis, such as
ERA-Interim reanalysis of the ECMWF (European Centre for Medium-Range
Weather Forecasts) and the high resolution regional climate model
(COSMO-CLM) data (http://www.clm-community.eu/ [2]) to obtain a
detailed view of the atmospheric processes related to
hydro-meteorological extreme events over the south-central Andes.
Here, we divide the erea in three different study regions based on
elevation: The high-elevation Altiplano-Puna plateau, an intermediate
area characterized by intramontane basins, and the foreland area to
analyze the correlations between climatic variables and extreme
rainfall events in all three domains.
limaticEvents.png
hesis-Maryam_Ramezani_Ziarani.pdf