Instrument Acronym:
PANs
Instrument Measurements:
a) Trace Gas
PAN, PPN, MPAN, PiBN, APAN
b) Cloud Physics/Aerosol
c) Radiation/Optical/Electrical
d) Additional Capabilities
Resource Person/Developer:
Name: Frank Flocke / Andy Weinheimer
Affiliation: NCAR/ATD
Phone:303-497-1457 / 303-497-1444
Email:ffl@acd.ucar.edu / wein@acd.ucar.edu
Principle of Measurement:
Gas Chromatography / Electron capture detection
In situ/Remote/Flux Measurement:
Field projects in which the instrument has been used:
NOAA SOS ’99 Nashville aircaft intensive (NOAA WP3-D, instrument prototype), June/July 1999
NCAR/ACD TOPSE Campaign (NCAR C-130), February – May, 2000
NOAA TexAQS 2000 Houston aircraft intensive (NOAA WP3-D), August/Sept. 2000
NASA TRACE-P project (NASA Wallops WP3-B), February-April, 2001
Aircraft Platform:
Any of sufficient size and payload
Inlet Configuration/Location:
Constant pressure inlet / usually mounted to window blank
Calibration/Cross Calibration:
In-flight calibration for PAN (PPN under development)
Operator Requirements:
1 operator in flight
Data Collection:
self
Post-flight Data Validation, Processing, Hours per Flight Hour etc.
Physical Characteristics:
Dimensions: 1/2 standard aircaft rack, 40X19 inches, plus 1-3 aluminum gas bottles, size 20-50
Weight: 250 lbs
Power: about 3 amps 110V/60Hz. 6 amps 110V/400Hz or 60Hz
Other:
Response Time:
One 2-3 second average every 2.25 minutes (For PAN-MPAN)
Detection Limits:
5 pptv
Accuracy:
depends on flight conditions, typically better then 10%
Precision:
s.o.
Limitations (such as altitude, airspeed, etc.)
subsonic, over 10 km LoD goes up.