Publication Date:
2018-03-16
Description:
In this paper, we analyze the tropospheric delay observed on some ground-based CGPS
stations in a dense small regional network and its time evolution during extreme weather
conditions. In particular, we studied two severe weather events occurring in the Campanian
Region (Italy) on October 12, 2012 and December 2, 2014, reaching 42 and 28 mm rainfall
during about 1 h at Naples (MAFE) and Gragnano (GRAG) stations respectively. The main
concern of this study is the retrieval of the precipitable water (PW) from co-located GPS
and meteorological stations. We investigate the correlation between PW and rain amount
at ground level. We analyse phase residuals for each visible GPS satellite using sky plots
of the phase residuals along the GPS satellites tracks, showing that the two phenomena are
shown in the phase residual plots. Moreover, we compare PWdata retrieved from observed
meteorological data and from models (GPT2 and ECMWF), evidencing that there is a need
for co-located CGPS and weather stations to improve the assessment of water content in the
troposphere.
Description:
Published
Description:
293-302
Description:
4A. Oceanografia e clima
Description:
7A. Geofisica per il monitoraggio ambientale e geologia medica
Keywords:
Precipitable water
;
Tropospheric delay
;
GPT2
;
ECMWF
;
GPS
;
01.01. Atmosphere
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
book chapter
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