Antarctic Clouds

Tom Lachlan-CopeJohn King, Amélie Kirchgaessner

Meteorological Airborne Science INstrumentation (MASIN)

• Boundary Layer• Sea ice

• Cloud Studies• Large scale flow

Instruments• Temperature + Humidity• Radiation• Turbulence (wind) • Fast Temperature, Humidity and CO2• Cloud probe CAPS DPOL• Aerosol Inlet• Camera• Laser Altimeter/Scanning Laser• Surface temperature• Chemistry Inlets

Boom with turbulence probe

Upward directed short- and long wave radiometers

Downward directed short- and long wave radiometersFrost point

hygrometer

Aerosol inlet

temperatureIRT and video camera

Cloud Probe

Cloud observations over Antarctic Peninsula

• Two campaigns – about 150 hrs flying• See: Grosvenor, D. P., Choularton, T. W., Lachlan-Cope, T.,

Gallagher, M. W., Crosier, J., Bower, K. N., Ladkin, R. S., and Dorsey, J. R.: In-situ aircraft observations of ice concentrations within clouds over the Antarctic Peninsula and Larsen Ice Shelf, Atmos. Chem. Phys., 12, 11275-11294, doi:10.5194/acp-12-11275-2012, 2012.

SWnet LWnet HS HL E-40

-20

0

20

40

60

80

AWSAMPSUM

Surface energy balance8 Jan - 8 Feb 2011

AMPS 5 km

SWnet LWnet

Hs HL

+23.5 -5.7

-4.5 +5.1

British Antarctic Survey Antarctic Research Stations

Aircraft measurements Clouds Aerosols BL

Surface measurements• IN• CCN• Aerosols• Chemistry

MAC

Any Questions?