Life Cycle of Deep Convection during the COPS Field Campaign LIFCOC Martin Hagen, Hartmut Hller, Geo

1
Life Cycle of Deep Convection during the COPS
Field Campaign (LIFCOC)Martin Hagen, Hartmut
Höller, George CraigInstitut für Physik der
Atmosphäre, DLR Oberpfaffenhofen
2

• LIFCOC is a proposal within the COPS bundle
• only project in PPL
• POLDIRAD only instrument to measure4-d
  microphysics
• Its goal is
• to study the complete life cycle of deep
  convection in mountainous terrain from
  initiation to decay
• It aims to answer the hypotheses and science
  questions of COPS and in particular the ones of
  the working group PPL
• Location and timing of CI depends on the humidity
  (and wind) field
• Life cycle of single cells is affected by
  orography, but not the one of larger systems
• PPL 1 what is role of orography for the
  development of cells ?
• PPL 2 does the orography affect the hydrometeor
  distribution ?
• PPL 3 how does the RDSD change during the life
  cycle ?

3

• Using
• radar
• lidar
• lightning measurements
• numerical simulations
• to describe
• the life cycle of precipitation
• the variation of rain drop size distribution
• the development of lightning
• in relation to orography

4
Isolated cell over Black Forest (IOP 8b, 15 July
2007)
radar
groundclutter
Hornisgrinde
Hydrometeorclassification
Reflectivity (dBZ)
graupel
graupel
small hail
rain
hail rain
5
Work plan of LIFCOC

• New Project, funding requested for 2 years, 3rd
  year internal funding

6
Cooperation within COPS bundle
7
Other national (SPP PQP) and international
cooperation

• Universität Hamburg (MRR measurements), G.
  Peters
• SPP1167 QUEST (COSMO-DE simulations and
  improvement of model microphysics)
• SPP1167 DAQUA (COSMO-DE simulation and
  assimilation)
• Université de Clermont-Ferrand (X-band radar
  Bischenberg), J. van Baelen
• Observatoire Midi-Pyrénées (MesoNH simulations),
  E. Richard
• NCAR (DOW), T. Weckwerth