Atmospheric Radiation Measurement Climate Research Facility US Department of Energy

MASRAD: Pt. Reyes Stratus Cloud and Drizzle Study

7 July 2005 - 31 July 2005

Lead Scientist: Richard Coulter

Observatory: amf, pye

The primary goal for deployment of a micropulse lidar at Pt. Reyes was the shakedown and comparison with the ARM micropulse lidar. The secondary goal was to determine its effectiveness in detecting aerosol movement below and into stratus clouds. The profiler and sodar were necessary for the continuous measurement of wind profiles below, through and above stratus clouds, which in combination with aircraft in-situ measurements aid in determining the modification of aerosols by cloud processes. In addition the sodar and profiler provide continuous knowledge of the mixed layer and land processes affecting cloud development and changes as they move from above ocean to land.


  • Parent Campaign
  • Sibling Campaign


Ching J, N Riemer, M Dunn, and M Miller. 2010. In-cloud turbulence structure of marine stratocumulus.

Kim B, Y Kim, L Chang, M Miller, and Q Min. 2010. Analysis of Aerosol-cloud Interactions (ACI) in Accordance with Atmospheric Stability. Presented at Atmospheric System Research (ASR) Science Team Meeting.

Bartholomew M, M Miller, and M Dunn. 2010. Towards a Statistical Climatology of the Relationship of Between Updraft Velocity, Liquid Water Path, and Cloud Droplet Number Density: Preliminary Analysis from MASRAD and COPS. Presented at Atmospheric System Research (ASR) Science Team Meeting.


McComiskey A, G Feingold, AS Frisch, DD Turner, MA Miller, JC Chiu, Q Min, and JA Ogren. 2009. "An assessment of aerosol‐cloud interactions in marine stratus clouds based on surface remote sensing." Journal of Geophysical Research – Atmospheres, 114(D9), D09203, 10.1029/2008jd011006.

Lin W, M Zhang, and NG Loeb. 2009. "Seasonal Variation of the Physical Properties of Marine Boundary Layer Clouds off the California Coast." Journal of Climate, 22(10), 10.1175/2008jcli2478.1.
Research Highlight


Kim B, MA Miller, SE Schwartz, Y Liu, and Q Min. 2008. "The role of adiabaticity in the aerosol first indirect effect." Journal of Geophysical Research: Atmospheres, 113(D5), 10.1029/2007jd008961.


Wang J. 2007. "Effects of spatial and temporal variations in aerosol properties on mean cloud albedo." Journal of Geophysical Research – Atmospheres, 112(D16), D16201, 10.1029/2007jd008565.

Turner DD. 2007. "Improved ground-based liquid water path retrievals using a combined infrared and microwave approach." Journal of Geophysical Research – Atmospheres, 112(D15), D15204, 10.1029/2007jd008530.


Miller MA, A Bucholtz, B Albrecht, and P Kollias. 2005. Marine Stratus Radiation, Aerosol, and Drizzle (MASRAD) Science Plan. Ed. by Carrothers, D, U.S. Department of Energy. DOE/ER-ARM-0501.

View All Related Publications

Campaign Data Sets

IOP Participant Data Source Name Final Data
Richard Coulter 50 and 915 RWP Order Data
Richard Coulter Micropulse Lidar Order Data

PYE Data Sources

Name Full Name Browse Data
AERI Atmospheric Emitted Radiance Interferometer Browse Data
AERINF AERI Noise Filtered Browse Data
AIP Aerosol Intensive Properties Browse Data
AOD-MFRSR Aerosol Optical Depth (AOD) derived from MFRSR measurements Browse Data
AOS Aerosol Observing System Browse Data
CAMSITE camera that monitors a site area Browse Data
CCN Cloud Condensation Nuclei Particle Counter Browse Data
CEIL Ceilometer Browse Data
ECMWFDIAG European Centre for Medium Range Weather Forecasts Diagnostic Analyses Browse Data
ECOR Eddy Correlation Flux Measurement System Browse Data
GNDRAD Ground Radiometers on Stand for Upwelling Radiation Browse Data
MERGESONDE Merged Sounding Browse Data
MET Surface Meteorological Instrumentation Browse Data
MFRSR Multifilter Rotating Shadowband Radiometer Browse Data
MFRSRCLDOD Cloud Optical Properties from MFRSR Using Min Algorithm Browse Data
MOLTS Model Output Location Time Series Browse Data
MPL Micropulse Lidar Browse Data
MWR Microwave Radiometer Browse Data
MWRP Microwave Radiometer Profiler Browse Data
MWRRET MWR Retrievals Browse Data
NCEPGFS National Centers for Environment Prediction Global Forecast System Browse Data
NFOV Narrow Field of View Zenith Radiometer Browse Data
PBLHT Planetary Boundary Layer Height Browse Data
QCECOR Quality Controlled Eddy Correlation Flux Measurement Browse Data
QCRAD Data Quality Assessment for ARM Radiation Data Browse Data
RADFLUXANAL Radiative Flux Analysis Browse Data
RUC Rapid Update Cycle Model Data Browse Data
SKYRAD Sky Radiometers on Stand for Downwelling Radiation Browse Data
SONDE Balloon-Borne Sounding System Browse Data
SONDEADJUST Sonde Adjust Browse Data
TSI Total Sky Imager Browse Data
VISST Minnis Cloud Products Using Visst Algorithm Browse Data