2 Back of the Envelope 3 State Position Trimble DSM @10 Hz, Trimble TANS Euler position @10 Hz Temperature Total: Rosemount 200 Hz
Reverse Flow: BNL/NCAR/SEA 200 Hz IRT: In optically thick clouds 4 State Water Vapor Dew Point Hygrometer TDLAS (~10 Hz) LWC
Gerber PVM-100, 200 Hz 5 State Winds, Turbulence (200 Hz) Gust Probe, Accelerometer Other Up/Down UV Irradiance 6
Aerosol Composition/Cloud Microphysical Properties AMS (cTOF) Aerodyne Research Incorporated 7 Aerosol Composition/Cloud Microphysical Properties PILS ~3 min cations: Na+, K+, Ca++, NH4+ anions: SO4--, NO3-, Cl-
8 Fine Aerosol # TSI 3010 (> 10 m) TSI 3025 (> 3 m) DMT CCNs (3 supersaturations: 0.2, 0.28, 0.4%) 9
Particles/Clouds x Charger Aeros ol 25 oC Flow Butanol Saturated
Sheath Flow x Condenser Separator y zx Separator Twin DMAs: 15-440 nm, ~1 min scans FIMS: 30-120 nm, ~1 s resolution
Condenser High Voltage Laser Geometry 10 oC Laser
x CCD 22 nm particles y (Kulkarni and Wang, 2006a,b; Olfert 10 and Wang, 2008)
x Particles/Clouds PCASP: ~0.1 - 3m, 10 Hz CAPS: CAS: ~0.6 - 60m, 10 Hz also Particle by Particle (204 individual every 0.1 s) CIP: ~25m 1.5 mm, 10 Hz 11
Aerosol Optical Properties TSI 3 Nephelometer Photo Thermal Interferometry 12 Folded Jamin Interferometer for measurement of aerosol absorption It is highly desirable to directly measure aerosol absorption & without interference
from aerosol scattering Sample chamber 514 nm excitation Jamin head Right angle prisms Retro assembly 6-in Insensitive to rotation and tilt Simple positional alignment
Common mode rejection provides increased mechanical robustness Designed to fit into instrument rack Aerosol Sample inlet PTS relies on the thermal dissipation of spectrally absorbed energy for its signal 13 Aerosol Optical Properties Radiance Research 3 PSAP
Noise Characteristics of an Instrumental Particle Absorbance Technique Stephen R. Springston and Arthur J. Sedlacek, III 14 Example: tavg = 2 s (as recorded) tavg = 12 s (boxcar)
tavg = 12 s (avg I, I0) Gas-Phase Species SO2: TEI Model 43S, UV fluorescence ~200-500 pptv @ 4 s resolution Organics: PTRMS CO: VUV fluorescence ~1-2 ppbv @ 5 s resolution O3: TEI Model 49-100, UV photometry
16 Gas-Phase Species O3: Solid-State Chemiluminescence, BNL 17 After the Flight 18
After the Flight ~200 Mb/hour Processed to .pdf, .txt, and other Quick look ~3 hours, Preliminary post ~1 day
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