Monthly Archives: January 2011

CalWater 2011 is About to Begin

Welcome to the Prather Research Group‘s ATOFMS Field Notebook!

Currently, some of the members of the Prather Group are involved with the CalWater field measurement campaign… the third installment in three years.  A collaboration with the National Oceanic and Atmospheric Administration (NOAA), the California Energy Commission (CEC) and several other institutions, this study intends to investigate the interplay of atmospheric aerosol particles with clouds and precipitation in California.  Comprehensive descriptions can be found within the Prather Group’s website and the NOAA-hosted CalWater website.  Briefly, the concept for this study is to bridge direct observations of the chemical and physical properties of atmospheric aerosol particles with measurements of the surrounding meteorology.  Detailed chemical and physical measurements of atmospheric aerosols are currently being made at a remote site in Tahoe National Forest at the Sugar Pine Dam utilizing several techniques, including Aerosol Time-of-Flight Mass Spectrometry (ATOFMS).  Starting February 2, measurements will be made via research aircraft, utilizing Pacific Northwest National Lab’s Gulfstream-1 (PNNL G-1) — stay tuned for more on this part of the study!  NOAA meteorological measurements have been underway for several months, including a large network of several types of radars, rain gauges, raindrop size distributions, surface meteorological and hydrological sensors.

Members of the Prather Research Group that are participating in this study will be updating this blog throughout the study.  Stay tuned to learn more about our measurements!

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