WAECF
Two-Column Aerosol Project (TCAP): Winter Aerosol Effects on Cloud Formation
4 February 2013 - 28 February 2013
Lead Scientist: Daniel Cziczo
Observatory: amf, pvc
The formation of clouds is an essential element in understanding the Earth’s radiative budget. Liquid water clouds form when the relative humidity exceeds saturation and condensed-phase water nucleates on atmospheric particulate matter. The effect of aerosol properties such as size, morphology and composition on cloud droplet formation has been studied theoretically as well as in the laboratory and field. Almost without exception these studies have been limited to parallel measurements of aerosol properties and cloud formation or collection of material after the cloud has formed at which point nucleation information has been lost. Studies of this sort are adequate when a large fraction of the aerosol activates but correlations and resulting model parameterizations are much more uncertain at lower supersaturations and activated fractions.
The objective of this study was to determine the effect of aerosol properties on cloud droplet formation in situ and in real time. To accomplish this we combined a CCN chamber with a pumped counterflow virtual impactor (PCVI) to separate droplets formed as a function of saturation and temperature from the un-activated aerosol in our laboratory. The composition of the droplet-forming aerosol was then determined with an Aerosol Mass Spectrometer (AMS; Aerodyne Research, Inc., Billerica, MA) and/or a single particle mass spectrometer.
Timeline
- Parent Campaign
- Sibling Campaign
Related Publications
2025
Tai S, B Gaudet, S Feng, R Krishnamurthy, L Berg, and J Fast. 2025. "Characterizing model uncertainties in simulated coast-to-offshore wind over the northeast U.S. using multi-platform measurements from the TCAP field campaign." Renewable Energy, 239, 122022, 10.1016/j.renene.2024.122022.
2024
Gorkowski K, E Koo, S Jordan, J Reisner, K Benedict, and M Dubey. 2024. "Insights into Pyrocumulus aerosol composition: black carbon content and organic vapor condensation." Environmental Science: Atmospheres, , 10.1039/D3EA00130J.
Research Highlight
2021
Kassianov E, M Pekour, J Barnard, C Flynn, F Mei, and L Berg. 2021. "Estimation of Aerosol Columnar Size Distribution from Spectral Extinction Data in Coastal and Maritime Environment." Atmosphere, 12(11), 10.3390/atmos12111412.
2020
Li H and A May. 2020. "An Exploratory Approach Using Regression and Machine Learning in the Analysis of Mass Absorption Cross Section of Black Carbon Aerosols: Model Development and Evaluation." Atmosphere, 11(11), 10.3390/atmos11111185.
2018
Kassianov E, L Berg, M Pekour, J Barnard, D Chand, J Comstock, C Flynn, A Sedlacek, J Shilling, H Telg, J Tomlinson, A Zelenyuk, and J Fast. 2018. "A Closure Study of Total Scattering Using Airborne In Situ Measurements from the Winter Phase of TCAP." Atmosphere, 9(6), 228, 10.3390/atmos9060228.
Research Highlight
2016
Wang X, CL Heald, AJ Sedlacek, SS de Sa, ST Martin, ML Alexander, TB Watson, AC Aiken, SR Springston, and P Artaxo. 2016. "Deriving brown carbon from multiwavelength absorption measurements: method and application to AERONET and aethalometer observations." Atmospheric Chemistry and Physics, 16(19), 10.5194/acp-16-12733-2016.
Ortega I, LA Berg, RA Ferrare, JW Hair, CA Hostetler, and R Volkamer. 2016. "Elevated aerosol layers modify the O2–O2 absorption measured by ground-based MAX-DOAS." Journal of Quantitative Spectroscopy and Radiative Transfer, 176, 10.1016/j.jqsrt.2016.02.021.
Ortega I, S Coburn, LK Berg, K Lantz, J Michalsky, RA Ferrare, JW Hair, CA Hostetler, and R Volkamer. 2016. "The CU 2D-MAX-DOAS instrument - Part 2: Raman scattering probability measurements and retrieval of aerosol optical properties." Atmospheric Measurement Techniques Discussions, 9, 10.5194/amt-2015-385.
2015
Zelenyuk A, D Imre, J Wilson, Z Zhang, J Wang, and K Mueller. 2015. "Airborne Single Particle Mass Spectrometers (SPLAT II & miniSPLAT) and New Software for Data Visualization and Analysis in a Geo-Spatial Context." Journal of The American Society for Mass Spectrometry, 26(2), 10.1007/s13361-014-1043-4.
2014
Titos G, A Jefferson, PJ Sheridan, E Andrews, H Lyamani, L Alados-Arboledas, and JA Ogren. 2014. "Aerosol light-scattering enhancement due to water uptake during the TCAP campaign." Atmospheric Chemistry and Physics, 14(13), 10.5194/acp-14-7031-2014.
View All Related Publications
Campaign Data Sets
IOP Participant | Data Source Name | Final Data |
---|---|---|
Daniel Cziczo | Time of Flight Aerosol Mass Spectrometer | Order Data |
PVC Data Sources
Name | Full Name | Browse Data |
---|---|---|
ACSM |
Aerosol Chemical Speciation Monitor | Browse Data |
AERI |
Atmospheric Emitted Radiance Interferometer | Browse Data |
AERINF |
AERI Noise Filtered | Browse Data |
AETH |
Aethalometer | 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 |
AOSCCNAVG |
Aerosol Observing System (AOS): cloud condensation nuclei data, averaged | Browse Data |
AOSMET |
Meteorological Measurements associated with the 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 |
CEILPBLHT |
Boundary-layer height data with CEIL | Browse Data |
CLAP |
Continuous Light Absorption Photometer | Browse Data |
CO-ANALYZER |
Carbon Monoxide Analyzer | Browse Data |
CPC |
Condensation Particle Counter | Browse Data |
CSPHOT |
Sunphotometer | Browse Data |
DL |
Doppler Lidar | Browse Data |
DLPROF-WIND |
Doppler Lidar Horizontal Wind Profiles | Browse Data |
DLPROF-WSTATS |
Doppler Lidar Wind Statistics Profiles | 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 |
HTDMA |
Humidified Tandem Differential Mobility Analyzer | Browse Data |
INTERPSONDE |
Interpolated Sonde | Browse Data |
IRT |
Infrared Thermometer | Browse Data |
KASACR |
Ka-Band Scanning ARM Cloud Radar | Browse Data |
MET |
Surface Meteorological Instrumentation | Browse Data |
MFR |
Multifilter Radiometer | Browse Data |
MFRSR |
Multifilter Rotating Shadowband Radiometer | Browse Data |
MFRSRCLDOD |
Cloud Optical Properties from MFRSR Using Min Algorithm | Browse Data |
MICROBASE |
Continuous Baseline Microphysical Retrieval | Browse Data |
MPL |
Micropulse Lidar | Browse Data |
MPLCMASK |
Cloud mask from Micropulse Lidar | Browse Data |
MWR |
Microwave Radiometer | Browse Data |
MWR3C |
Microwave Radiometer, 3 Channel | Browse Data |
MWRHF |
Microwave Radiometer - High Frequency | Browse Data |
MWRP |
Microwave Radiometer Profiler | Browse Data |
MWRRET |
MWR Retrievals | Browse Data |
NEPHELOMETER |
Nephelometer | Browse Data |
NFOV |
Narrow Field of View Zenith Radiometer | Browse Data |
NOX |
Nitrogen Oxides Monitor | Browse Data |
OZONE |
Ozone Monitor | Browse Data |
PASS |
Photoacoustic Soot Spectrometer | Browse Data |
PBLHT |
Planetary Boundary Layer Height | Browse Data |
PSAP |
Particle Soot Absorption Photometer | Browse Data |
QCRAD |
Data Quality Assessment for ARM Radiation Data | Browse Data |
RWP |
Radar Wind Profiler | Browse Data |
SACRADVVAD |
SACR Advance Velocity Azimuth Display | Browse Data |
SACRCOR |
Scanning ARM Cloud Radar Corrections | Browse Data |
SASHE |
Shortwave Array Spectroradiometer-Hemispheric | Browse Data |
SASZE |
Shortwave Array Spectroradiometer-Zenith | Browse Data |
SEBS |
Surface Energy Balance System | Browse Data |
SKYRAD |
Sky Radiometers on Stand for Downwelling Radiation | Browse Data |
SMPS |
Scanning mobility particle sizer | Browse Data |
SO2 |
Sulfur Dioxide Monitor | Browse Data |
SODAR |
Mini Sound Detection and Ranging | Browse Data |
SONDE |
Balloon-Borne Sounding System | Browse Data |
SONDEADJUST |
Sonde Adjust | Browse Data |
SONDEGRID |
Gridded Sonde VAP Product | Browse Data |
TSI |
Total Sky Imager | Browse Data |
UHSAS |
Ultra-High Sensitivity Aerosol Spectrometer | Browse Data |
WACR |
W-Band (95 GHz) ARM Cloud Radar | Browse Data |
WACRARSCL |
W-band Cloud Radar Active Remote Sensing of Cloud | Browse Data |
WSACR |
W-band Scanning ARM Cloud Radar | Browse Data |