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Title: The Two-Column Aerosol Project: Phase I - Overview and Impact of Elevated Aerosol Layers on Aerosol Optical Depth

Abstract

The Two-Column Aerosol Project (TCAP), which was conducted from June 2012 through June 2013, was a unique field study that was designed to provide a comprehensive data set that can be used to investigate a number of important climate science questions, including those related to aerosol mixing state and aerosol radiative forcing. The study was designed to sample the atmosphere at a number of altitudes, from near the surface to as high as 8 km, within two atmospheric columns; one located near the coast of North America (over Cape Cod, MA) and a second over the Atlantic Ocean several hundred kilometers from the coast. TCAP included the yearlong deployment of the U.S. Department of Energy’s (DOE) Atmospheric Radiation Measurement (ARM) Mobile Facility (AMF) that was located at the base of the Cape Cod column, as well as summer and winter aircraft intensive observation periods of the ARM Aerial Facility. One important finding from TCAP is the relatively common occurrence (on four of six nearly cloud-free flights) of elevated aerosol layers in both the Cape Cod and maritime columns that were detected using the nadir pointing second-generation NASA high-spectral resolution lidar (HSRL-2). These layers contributed up to 60% of the totalmore » aerosol optical depth (AOD) observed in the column. Many of these layers were also intercepted by the aircraft configured for in situ sampling, and the aerosol in the layers was found to have increased amounts of biomass burning aerosol and nitrate compared to the aerosol found near the surface.« less

Authors:
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Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1239469
Report Number(s):
PNNL-SA-102905
KP1701000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Geophysical Research. D. (Atmospheres), 121(1):336-361
Country of Publication:
United States
Language:
English

Citation Formats

Berg, Larry K., Fast, Jerome D., Barnard, James C., Burton, Sharon, Cairns, Brian, Chand, Duli, Comstock, Jennifer M., Dunagan, Stephen, Ferrare, Richard A., Flynn, Connor J., Hair, John, Hostetler, Chris A., Hubbe, John M., Jefferson, Anne, Johnson, Roy, Kassianov, Evgueni I., Kluzek, Celine D., Kollias, Pavlos, Lamer, Katia, Lantz, K., Mei, Fan, Miller, Mark A., Michalsky, Joseph, Ortega, Ivan, Pekour, Mikhail S., Rogers, Ray, Russell, P., Redemann, Jens, Sedlacek, Art, Segal Rozenhaimer, Michal, Schmid, Beat, Shilling, John E., Shinozuka, Yohei, Springston, Stephen R., Tomlinson, Jason M., Tyrrell, Megan, Wilson, Jacqueline, Volkamer, Rainer M., Zelenyuk, Alla, and Berkowitz, Carl M. The Two-Column Aerosol Project: Phase I - Overview and Impact of Elevated Aerosol Layers on Aerosol Optical Depth. United States: N. p., 2016. Web. doi:10.1002/2015JD023848.
Berg, Larry K., Fast, Jerome D., Barnard, James C., Burton, Sharon, Cairns, Brian, Chand, Duli, Comstock, Jennifer M., Dunagan, Stephen, Ferrare, Richard A., Flynn, Connor J., Hair, John, Hostetler, Chris A., Hubbe, John M., Jefferson, Anne, Johnson, Roy, Kassianov, Evgueni I., Kluzek, Celine D., Kollias, Pavlos, Lamer, Katia, Lantz, K., Mei, Fan, Miller, Mark A., Michalsky, Joseph, Ortega, Ivan, Pekour, Mikhail S., Rogers, Ray, Russell, P., Redemann, Jens, Sedlacek, Art, Segal Rozenhaimer, Michal, Schmid, Beat, Shilling, John E., Shinozuka, Yohei, Springston, Stephen R., Tomlinson, Jason M., Tyrrell, Megan, Wilson, Jacqueline, Volkamer, Rainer M., Zelenyuk, Alla, & Berkowitz, Carl M. The Two-Column Aerosol Project: Phase I - Overview and Impact of Elevated Aerosol Layers on Aerosol Optical Depth. United States. doi:10.1002/2015JD023848.
Berg, Larry K., Fast, Jerome D., Barnard, James C., Burton, Sharon, Cairns, Brian, Chand, Duli, Comstock, Jennifer M., Dunagan, Stephen, Ferrare, Richard A., Flynn, Connor J., Hair, John, Hostetler, Chris A., Hubbe, John M., Jefferson, Anne, Johnson, Roy, Kassianov, Evgueni I., Kluzek, Celine D., Kollias, Pavlos, Lamer, Katia, Lantz, K., Mei, Fan, Miller, Mark A., Michalsky, Joseph, Ortega, Ivan, Pekour, Mikhail S., Rogers, Ray, Russell, P., Redemann, Jens, Sedlacek, Art, Segal Rozenhaimer, Michal, Schmid, Beat, Shilling, John E., Shinozuka, Yohei, Springston, Stephen R., Tomlinson, Jason M., Tyrrell, Megan, Wilson, Jacqueline, Volkamer, Rainer M., Zelenyuk, Alla, and Berkowitz, Carl M. Fri . "The Two-Column Aerosol Project: Phase I - Overview and Impact of Elevated Aerosol Layers on Aerosol Optical Depth". United States. doi:10.1002/2015JD023848.
@article{osti_1239469,
title = {The Two-Column Aerosol Project: Phase I - Overview and Impact of Elevated Aerosol Layers on Aerosol Optical Depth},
author = {Berg, Larry K. and Fast, Jerome D. and Barnard, James C. and Burton, Sharon and Cairns, Brian and Chand, Duli and Comstock, Jennifer M. and Dunagan, Stephen and Ferrare, Richard A. and Flynn, Connor J. and Hair, John and Hostetler, Chris A. and Hubbe, John M. and Jefferson, Anne and Johnson, Roy and Kassianov, Evgueni I. and Kluzek, Celine D. and Kollias, Pavlos and Lamer, Katia and Lantz, K. and Mei, Fan and Miller, Mark A. and Michalsky, Joseph and Ortega, Ivan and Pekour, Mikhail S. and Rogers, Ray and Russell, P. and Redemann, Jens and Sedlacek, Art and Segal Rozenhaimer, Michal and Schmid, Beat and Shilling, John E. and Shinozuka, Yohei and Springston, Stephen R. and Tomlinson, Jason M. and Tyrrell, Megan and Wilson, Jacqueline and Volkamer, Rainer M. and Zelenyuk, Alla and Berkowitz, Carl M.},
abstractNote = {The Two-Column Aerosol Project (TCAP), which was conducted from June 2012 through June 2013, was a unique field study that was designed to provide a comprehensive data set that can be used to investigate a number of important climate science questions, including those related to aerosol mixing state and aerosol radiative forcing. The study was designed to sample the atmosphere at a number of altitudes, from near the surface to as high as 8 km, within two atmospheric columns; one located near the coast of North America (over Cape Cod, MA) and a second over the Atlantic Ocean several hundred kilometers from the coast. TCAP included the yearlong deployment of the U.S. Department of Energy’s (DOE) Atmospheric Radiation Measurement (ARM) Mobile Facility (AMF) that was located at the base of the Cape Cod column, as well as summer and winter aircraft intensive observation periods of the ARM Aerial Facility. One important finding from TCAP is the relatively common occurrence (on four of six nearly cloud-free flights) of elevated aerosol layers in both the Cape Cod and maritime columns that were detected using the nadir pointing second-generation NASA high-spectral resolution lidar (HSRL-2). These layers contributed up to 60% of the total aerosol optical depth (AOD) observed in the column. Many of these layers were also intercepted by the aircraft configured for in situ sampling, and the aerosol in the layers was found to have increased amounts of biomass burning aerosol and nitrate compared to the aerosol found near the surface.},
doi = {10.1002/2015JD023848},
journal = {Journal of Geophysical Research. D. (Atmospheres), 121(1):336-361},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 08 00:00:00 EST 2016},
month = {Fri Jan 08 00:00:00 EST 2016}
}