Marine Stratus Experiment MASE

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Marine Stratus Experiment (MASE)
When- July 2005 Location- Point Reyes
National Seashore, CA North of San Francisco
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Marine Stratus Experiment (MASE)

• Objectives-
• Examine the effects of aerosol loading,
  composition and size distribution on cloud
  droplet number concentrations and size
  distributions.
• Characterize the effects of turbulence and cloud
  properties such as liquid water content, droplet
  number concentration and droplet dispersion on
  the initiation of drizzle.
• Gather in-situ cloud data suitable for
  examination of the dependence of the
  autoconversion rate on droplet size distribution
  and number concentration.

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Marine Stratus Experiment (MASE)
Proposed G-1 Instruments-

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Marine Stratus Experiment (MASE)
Proposed G-1 Instruments contd-

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Collaborations

• Proposed to conduct MASE in collaboration with -
• MArine Stratus Radiation, Aerosol, and Drizzle
  (MASRAD) IOP
• Point Reyes March 2005-September 2005
• PIs Miller (BNL), Bucholtz (NRL), Albrecht
  (Miami), and Kollias (Miami)
• Summer deployment
• of the CIRPAS Twin Otter
• (Seinfeld et al)

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• MASRAD Scientific Objectives
• Investigate the general relationship between
  cloud mesoscale structure, aerosols, cloud
  microphysics, drizzle and radiation in marine
  stratus clouds
• Investigate the effect of aerosol on the amount
  of solar radiation absorbed by clouds

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MASRAD Resources

• AMF 95 GHz Radar
• AERI
• Microwave Radiometer (MWR)
• MWR-Profiler
• Micropulse Lidar
• Vaisala Ceilometer
• MFRSR
• A complete radiometer package
• BBS- 4/day

• Whole sky imager
• Surface met (T, RH, Winds)
• Eddy correlation flux system
• Aerosol package
• For more details go to-
• http//www.arm.gov/sites/

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AMF Siting
ATT Site
Point Reyes National Seashore
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Proposed Site Layout
Wind
M-Van
Aerosols
WACR, MPL, AERI
MWR, MWR-P
ECOR
Skyrad, Gndrad SMET, misc. radiometers
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Call for Participation

• Ideal opportunity for ASP to begin indirect
  effects studies.
• Availability of facilities that may not be
  available for future studies.
• Good location with lots of clouds.
• Encourage ASP scientists to participate by
  refining the scientific goals of the project, by
  providing useful measurements for the G-1 or at
  Pt. Reyes, or by using the data to achieve ASP
  scientific goals.