Identification

Title

C-130 Aerosol LAS-AIR Optical Particle Counter

Alternative title(s)

68.069

Abstract

The LAS-AIR is a commercial instrument (PMS Model 1001) that measured the size distribution of particles between about 0.1 to > 3 microns diameter in 8 size channels. During DYCOMS, the LAS-AIR was one of a number of instruments sampling off the solid diffuser inlet (SDI) which was mounted on the right side of the C-130 aircraft. To dry the sample and prevent coincidence at high concentrations, the LAS-AIR sample stream was diluted with dry nitrogen in a 5:1 ratio (5 parts N2 to 1 part sample). All flow rates were monitored and maintained with constant volume flow controllers. The LAS-AIR samples over a 6 sec interval, so the data rate is once every 6 seconds. Rather than using the manufacturer's calibration, size limits were calibrated using monodisperse ammonium sulfate aerosol. Additional information on the LAS-AIR itself can be found on the PMS website at http://www.pmeasuring.com/particle/products/aerosol/docs/lasair

Resource type

dataset

Resource locator

https://data.eol.ucar.edu//dataset/68.069

protocol: https

name: C-130 Aerosol LAS-AIR Optical Particle Counter homepage

description: Dataset homepage

https://data.eol.ucar.edu/cgi-bin/codiac/fgr_form/id=68.069

protocol: https

name: C-130 Aerosol LAS-AIR Optical Particle Counter Data Order Form

description: Dataset order request form. Data files are made available via FTP.

function: order

Unique resource identifier

code

68.069

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

climatologyMeteorologyAtmosphere

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

NSF/NCAR C-130

Keyword set

keyword value

Aircraft

Keyword set

keyword value

EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES

EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > PARTICLE SIZE DISTRIBUTION

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-02-27

Geographic location

West bounding longitude

-127.00000

East bounding longitude

-115.00000

North bounding latitude

37.00000

South bounding latitude

26.00000

Temporal reference

Temporal extent

Begin position

2001-07-13T00:00:00Z

End position

2001-07-28T23:59:59Z

Dataset reference date

date type

publication

effective date

2006-06-12T14:51:14Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

none

Limitations on public access

none

Responsible organisations

Responsible party

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

name: homepage

responsible party role

pointOfContact

Responsible party

organisation name

NorthWest Research Associates

full postal address

Redmond

98052

email address

twohy@nwra.com

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata date

2024-02-07T22:45:36Z

Metadata language