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Contact Info:
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Investigator(s):
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Duli Chand
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| Related Publications/References: |
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Anderson, T. L.,and J. A. Ogren, Determining aerosol radiative properties using the TSI-3563 integrating nephelometer, AerosolSci.Technol.,29,57-69,1998
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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
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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.
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| Data Format: |
.dat files (ascii)
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File Naming Convention:
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files are named by flight date
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Abstract:
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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 Âpointed 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
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Purpose:
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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
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Data Usage:
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See the 'readme file: Read_me_file_GO-Amazon_Neph_PSAP.txt
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Data Credit:
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DOE, ARM, AAF, Duli Chand, Beat Schmid
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Arm Sites:
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mao
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Site Information:
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| Sites |
North |
West |
South |
East |
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S3: Manaus, Amazonia, Brazil; AAF
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-3.09722
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-59.9867
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-3.09722
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-59.9867
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Content Time Range:
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Begin:
2014.02.22
End:
2014.10.04
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Instrument(s):
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PSAP
Nephelometer
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Field Campaign Type:
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Observations and Modeling of the Green Ocean Amazon Aerial Campaign
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Scientific Measurements(s):
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| Measurement name |
Variables |
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Scattering and absorption at various wavelengths
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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
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| Stratum Keyword(s): |
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| Data Quality: |
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Attribute Accuracy:
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No formal attribute accuracy tests were conducted
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Positional Accuracy:
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No formal positional accuracy tests were conducted
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Consistency and Completeness Report:
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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.
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Access Restriction:
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No access constraints are associated with this data.
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Use Restrictions:
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No use constraints are associated with this data.
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Distribution Info:
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| 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 |
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Additional Missing Info:
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See Read_me_file_GO-Amazon_Neph_PSAP.txt file in directory for additional information.
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