AAF_GOAmazon2014_Neph_PSAP

Overview:

Contact Info:
Name: Duli Chand
Email: duli.chand@pnnl.gov Phone: (509) 375-7241
Street: City:
State: Postal:
Investigator(s): Duli Chand
Related Publications/References:
Anderson, T. L.,and J. A. Ogren, Determining aerosol radiative properties using the TSI-3563 integrating nephelometer, AerosolSci.Technol.,29,57-69,1998
Ogren, J. A. (2010), Comment on "Calibration and Intercomparison of Filter-Based Measurements of Visible Light Absorption by Aerosols", Aerosol Science and Technology, 44(8), 589-591, 10.1080/02786826.2010.482111
Bond, T. C., T. L. Anderson, and D.Campbell, Calibration and intercom-parison of filter-based measurements of visible light absorption by aerosols, Aerosol Sci.Technol.,30,582-600,1999.
Data Format: .dat files (ascii)
File Naming Convention: files are named by flight date
Abstract: 
            
            This field campaign produced data over the Amazon Basin in Brazil for wet and dry seasons. It covers the data on aerosol extensive properties from polluted and cleaner environments over and around Manaus in Brazil using DOE G-1 research aircraft. These observations will help reduce the uncertainties in climate models, key topics to be investigated are:
Aerosol Optical Properties
Aerosol light scattering coefficient 
Aerosol light absorption coefficient 
Chemical composition of non-refractory material associated with light-absorbing carbon (LAC)
Production rate of secondary organic aerosol (SOA)
Microphysical processes relevant to determining aerosol size distributions and single scattering albedo (SSA)
CCN activity.
These topics are investigated through aircraft measurements with flight duration of 0.5-5 hours over and downwind of ˜pointed city (Manaus) and also over the cleaner green (forest) environment. Aerosol properties and their time evolution will be determined as a function of aerosol loading over clean and mixed types of air sampling. For more details on GO-Amazon field campaign visit: http://www.arm.gov/campaigns/aaf2014amazon
Purpose: 
            
            Observe the optical properties of aerosols using Nephelometer and PSAP instruments. Light scattering and absorption coefficients are measured at three wavelengths in visible band to observe/constrain the emissions and radiative impacts of aerosol over polluted and cleaner environments
Data Usage: 
            
            See the 'readme file: Read_me_file_GO-Amazon_Neph_PSAP.txt
Data Credit: DOE, ARM, AAF, Duli Chand, Beat Schmid
Arm Sites: mao
Site Information:
Sites North West South East
S3: Manaus, Amazonia, Brazil; AAF -3.09722 -59.9867 -3.09722 -59.9867
Content Time Range: Begin: 2014.02.22 End: 2014.10.04
Instrument(s): PSAP
Nephelometer
Field Campaign Type: Observations and Modeling of the Green Ocean Amazon Aerial Campaign
Scientific Measurements(s):
Measurement name Variables
Scattering and absorption at various wavelengths total scattering coefficient at 450 nm
total scattering coefficient at 550 nm
absorption coefficient at 462 nm
absorption coefficient at 523 nm
back scattering coefficient at 700 nm
total scattering coefficient at 700 nm
back scattering coefficient at 450 nm
back scattering coefficient at 550 nm
absorption coefficient at 648 nm
Stratum Keyword(s):
Data Quality:
Attribute Accuracy: 
                  
                  No formal attribute accuracy tests were conducted
Positional Accuracy: 
                  
                  No formal positional accuracy tests were conducted
Consistency and Completeness Report: Data set is considered complete for the information presented, as described in the abstract.Users are advised to read the redme file for rest of the metadata record carefully for addtional details.
Access Restriction: No access constraints are associated with this data.
Use Restrictions: No use constraints are associated with this data.
Distribution Info:
Organization Name: ARM Archive User Services
Email: armarchive[at]ornl.gov Phone: 1-888-ARM-DATA
Street: Oak Ridge National Laboratory City: Oak Ridge
State: Tennessee Postal: 37831-6290
Additional Missing Info: See Read_me_file_GO-Amazon_Neph_PSAP.txt file in directory for additional information.