(CVI) Counterflow Virtual Impactor deployment

Station Information

The Counterflow Virtual Impactor (CVI) is a device for preferentially sampling cloud droplets, while not sampling interstitial aerosol particles. The CVI will be deployed this summer at Pt. Reyes, CA as part of an experiment funded by DOE's Atmospheric Science Program (ASP) to study cloud-aerosol interactions. The CVI will be located at the ARM Mobile Facility (AMF) and operate in tandem with a GMD-mentored aerosol observing system (AOS). Results from CVI-related research have been described in a multitude of publications.

CVI in lab at CMDL


CVI Aerosol Properties Plots

Do not quote or cite.

Atmospheric Properties

These plots are designed to provide a quick look at the measured aerosol properties. They display raw unedited data, but known corrections for instrument errors have been applied.

Short-Term Status Plots (last 48 hours) Long-Term Averaged Plots (hourly averages, last 30 days)
Extensive Parameter Summary Plot Not AvailableExtensive Parameter Summary Plot Not Available
Spectral Coefficients Plot Not AvailableSpectral Coefficients Plot Not Available
Spectral Coefficients (Humidified) Plot Not AvailableSpectral Coefficients (Humidified) Plot Not Available
Intensive Parameter Summary Plot Not AvailableIntensive Parameter Summary Plot Not Available
Intensive Parameter Summary (Humidified) Plot Not AvailableIntensive Parameter Summary (Humidified) Plot Not Available
f(RH) Plot Not Availablef(RH) Plot Not Available
CCN Fit Parameters Plot Not AvailableCCN Fit Parameters Plot Not Available
Wind Speed and Direction Plot Not AvailableWind Speed and Direction Plot Not Available
CNC Status/Flows Plot Not AvailableCNC Status/Flows Plot Not Available
CCN Status Plot Not AvailableCCN Status Plot Not Available
PSAP Status Plot Not AvailablePSAP Status Plot Not Available
Nephelometer Background Reference Plot Not AvailableNephelometer Background Reference Plot Not Available
Nephelometer Background Reference (Humidified) Plot Not AvailableNephelometer Background Reference (Humidified) Plot Not Available
Nephelometer Status Plot Not AvailableNephelometer Status Plot Not Available
Nephelometer Status (Humidified) Plot Not AvailableNephelometer Status (Humidified) Plot Not Available
Flows Plot Not AvailableFlows Plot Not Available
Pressures Plot Not AvailablePressures Plot Not Available
Temperature, Humidity and Dew Point Plot Not AvailableTemperature, Humidity and Dew Point Plot Not Available
Filter Status Plot Not AvailableFilter Status Plot Not Available
uMAC Status Plot Not AvailableuMAC Status Plot Not Available

Summary Status Plots

One Year Summary Status Plots Time Series (Entire Record) Summary Status Plots
Nephelometer Status Plot Not AvailableNephelometer Status Plot Not Available
Wet Nephelometer Status Plot Not AvailableWet Nephelometer Status Plot Not Available