During the early summer rainy season (April to June) of
China, frequency and intensity of torrential-rain in South
China increase after the onset of South China Sea (SCS)
Monsoon in late May, being a serious threat to people’s
lives and properties and causing great economic losses. To
expedite our understanding of processes key to the
torrential rain formation and our efforts to improve
simulation and prediction of the torrential rain, the China
Meteorological Administration initiated and are organizing
Southern China Monsoon Rainfall Experiment (SCMREX). SCMREX
consists of four integrated components: field campaign,
data collection/processing/sharing, numerical modeling
study, and physical mechanism study.
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The field campaign of SCMREX aims to obtain unique and
composite observations of the fine-scale structures of the
convective systems and of their atmospheric environment
during the early summer rainy season. The field experiments
will be launched in a region mainly covering Guangdong,
Guangxi, Hainan, Hong Kong and the offshore of SCS during
mid-April to mid-June of 2013-2014. The experiments will
capture the thermodynamic and dynamic properties of the
atmosphere, the boundary-layer wind field in particular
which is of significant importance to convection
initiation, by utilizing the wind profilers, rawinsondes,
GPS/MET stations, and dropsondes.Dynamic and microphysical
structures of precipitating systems will be detected not
only by the Doppler weather radars and lightning location
system, but also multiple advanced remote sensing
equipments in two enhanced observing areas: 2 C-band
dual-polarization radars, 1 X-band dual-polarization radar,
1 micro-rain radar, 4 raindrop distrometers, and 2
millimeter-wave cloud radars. ... |