1. MOPITT VALIDATION DURING TRACE-P
D.J. Jacob and C.L. Heald (Harvard)
J.C. Gille and L. Emmons (NCAR)
G.W. Sachse (NASA/Langley)

2. TRACE-P INVOLVED THE INTEGRATION OF AIRCRAFT, SATELLITES, MODELS, AND a priori EMISSION INVENTORIES
CO aircraft observations
(G.W. Sachse)
MOPITT CO
observations
Chemical
forecasts
CTMs
Top-down
constraints
validation
Daily CO biomass burning emissions from AVHRR
(C.L. Heald)
CO fossil and
biofuel bottom-up emission inventory
(D.R. Streets, ANL)

3. MOPITT VALIDATION DURING TRACE-P (Feb 26 – Apr 9, 2001)
Example (March 20)
Seven DC-8 vertical profiles ( km) coincident with MOPITT overpass
Spirals of 20 km diam. matching MOPITT FOV
Double spirals to verify stationarity of features
One DC-8 transect along orbit track
MOPITT
underpass
TRACE-P validation spirals + transect
Get map of aircraft flight tracks

4. MOPITT VALIDATION PROFILES DURING TRACE-P
Aircraft w/
av. kernels
Aircraft
MOPITT (v3,
Dx = ±100 km)
Averaging
kernels

5. TRACE-P VALIDATION PROFILES: MOPITT vs. DC-8 CO columns
1018 molecules cm-2
MOPITT
2.25 ± 0.19
DC-8
w/avKer
2.12 ± 0.23
hPa
1.58 ± 0.19
DC-8 w/avKer r2 > 0.99
DC hPa r2 =0.98