Index of /arm-iop-file/2022/sgp/aginsgp/burrows-aps

[ICO]NameLast modifiedSizeDescription
[PARENTDIR]Parent Directory  -  
[TXT]APS_dN.txt2022-12-01 13:51 43M 
[TXT]APS_dNdlogDp.txt2022-12-01 13:51 35M 

Aerodynamic diameter particle size distributions for the AGINSGP experiment

Overview:

Aerodynamic size distributions were collected by the APS 3321 (TSI Inc.) in the guest instrument facility at ARM’s Southern Great Plains site, during the AGINSGP field campaign. The APS accelerates particle through an orifice and uses two overlapping laser beams to measure the time-of-flights for particles. The aerodynamic diameter controls how quickly a particle will accelerate, with larger particles accelerating more slowly due to their greater inertia. The APS measures particle size distributions from 0.542 to 19.81 µm. Size distributions are averaged to their 1 minute averages.

Air was drawn into the GIF through custom aluminum stack inlets (6” inner diameter) attached vertically to the outer GIF wall and the GIF outside platform. A blower pulled air through the stacks at a velocity of 1 m/s. Aerosol instruments subsampled via wall ports, through either 3/8” or 1/4" copper lines, depending on sample flow of the instrument.

Metadata Creator:
Name: Gavin Cornwell
Email: gavin.cornwell@pnnl.gov Phone: 5093756364
Street: 902 Battelle Blvd City: Richland
State: WA Postal: 99354
Contact Info:
Name: Susannah Burrows
Email: susannah.burrows@pnnl.gov Phone: (509) 372-6183
Street: 902 Battelle Blvd City: Richland
State: WA Postal: 99354
Investigator(s): Susannah Burrows
Gavin Cornwell
Data Citation: https://doi.org/10.5439/1899594
Data Format: .txt
Abstract:

Aerodynamic size distributions were collected by the APS 3321 (TSI Inc.) in the guest instrument facility at ARM’s Southern Great Plains site, during the AGINSGP field campaign. The APS accelerates particle through an orifice and uses two overlapping laser beams to measure the time-of-flights for particles. The aerodynamic diameter controls how quickly a particle will accelerate, with larger particles accelerating more slowly due to their greater inertia. The APS measures particle size distributions from 0.542 to 19.81 µm. Size distributions are averaged to their 1 minute averages.

Air was drawn into the GIF through custom aluminum stack inlets (6” inner diameter) attached vertically to the outer GIF wall and the GIF outside platform. A blower pulled air through the stacks at a velocity of 1 m/s. Aerosol instruments subsampled via wall ports, through either 3/8” or 1/4" copper lines, depending on sample flow of the instrument.
Purpose:

Data were collected in support of the AGINSGP field campaign. 
Arm Sites: sgp
Content Time Range: Begin: 2022.04.08 End: 2022.04.29
Instrument(s): Aerodynamic particle sizer (APS 331; TSI Inc.)
Data Type: Agricultural Ice Nuclei at SGP
Scientific Measurements(s):
Measurement name Variables
Particle size distribution
Stratum Keyword(s):
INPs, agricultural soil dust
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 rest of the metadata record carefully for additional 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