NCAR Airborne Instrumentation Inventory

1. INSTRUMENT IDENTIFICATION

Instrument Designation:
NOx, NOy, O3

Instrument Acronym:


Instrument Measurements:

a) Trace Gas
Measurement of stratospheric NOy, NOx and Ozone

b) Cloud Physics/Aerosol


c) Radiation/Optical/Electrical


d) Additional Capabilities


Resource Person/Developer:
Name: B. Ridley, F. Grahek, J. Walega Affiliation: NCAR/ACD and MMM
Phone:
Email:

Principle of Measurement:
NO/O3 Chemiluminescence

In situ/Remote/Flux Measurement:
in situ

2. INSTRUMENT APPLICATION

Scientific questions to be answered:
Distribution of NOx, NOy, O3 (Remote/Urban)

Field projects in which the instrument has been used:
ELCDIEM, ROSE, AASE II, VOTE, TUTE, SUCCESS, MLOPEX

Publications describing the instrument, applications and field project results:


Instrument Design

Ridley, B.A., F.E. Grahek, and J.G. Walega, 1992: A Small, High Sensitivity, Medium Response Ozone Detector Suitable for Measurements from Light Aircraft. J. Atm. Oceanic Technology, 9, 142.

Ridley, B.A., and F.E. Grahek, 1990: A Small, Low Flow, High Sensitivity Reaction Vessel for NO Chemiluminescence Detectors. J. Atm. Oceanic Technology, 7, 307.

Walega, J.G., J.E. Dye, F.E. Grahek, and B.A. Ridley, 1991: Measurement of Atmospheric Gases. SPIE, 1433.

Field Projects

Weinheimer, A.J., J.G. Walega, B.A. Ridley, G.W. Sachse, B.E. Anderson, and J.E. Collins Jr., 1993: Stratospheric NOy Measurements on the NASA DC-8 during AASE II. Geophysical Research Letters, 20, 2563-2566.

Lin, X., B.A. Ridley, J. Walega, G.F. Huebler, S.A. McKeen, E.-Y. Hsie, M. Trainer, F.C. Fehsenfeld, and S.C. Liu, 1994: Parameterization of subgrid scale convective cloud transport in a mesoscale regional chemistry model. J. Geophysical Research, 99, 25,615-25,630.

Weinheimer, A.J., J.G. Walega, B.A. Ridley, B.L. Gary, D.R. Blake, N.J. Blake, F.S. Rowland, G.W. Sachse, B.E. Anderson, and J.E. Collins, 1994: Meridional distributions of NOx, NOy, and other species in the lower stratosphere and upper troposphere during AASE II. Geophysical Research Letters, 21, 2583-2586.

Ridley, B.A., J.G. Walega, J.E. Dye, and F.E. Grahek, 1994: Distributions of NO, NOx, NOy, and O3 to 12 km altitude during the summer monsoon season over New Mexico. J. Geophysical Research, 99 25,519-25,534.

Trainer, M., B.A. Ridley, M.P. Buhr, G. Kok, J. Walega, G. Huebler, D.D. Parrish, and F.C. Fehsenfeld, 1995: Regional ozone and urban plumes in the southeastern United States: Birmingham, a case study. J. Geophysical Research, 100, 18,823 - 18,834.

Ridley, B.A., J.E. Dye, J.G. Walega, J. Zheng, F.E. Grahek, and W. Rison, 1996: On the production of active nitrogen by thunderstorms over New Mexico. J. Geophysical Research, 101, 20,985 - 21,005.

3. Instrument Deployment

Altitude:
0 - 41,000 ft

Aircraft Platform:
Sabreliner, Electra, King Air, DC-8, B57 in development

Inlet Configuration/Location:
Special

Calibration/Cross Calibration:
In-situ/in-flight
In-flight intercomparison

Operator Requirements:
2 people (on DC-8)

Data Collection:
self

Post-flight Data Validation, Processing, Hours per Flight Hour etc.
1 month post program

Physical Characteristics:
Dimensions:
Weight:
Power:
Other: standard hi boy instrument rack

4. Instrument Performance

Linear Range:
1 pptv -> 100 ppbv (NOx);