1. The effect of large scale oscillitions on arctic surface ozone concentration
EAS6410
Xueyuan Deng

2. What can influent ozone concentration
Radiation
Chemical componet of the atmosphere
Transport

5. Data used here Station observation Barrow, Alaska(71.32N,156.61W)
8 meters
1973 – Present
Index

6. Atmosphere events
The EOFs of NH (20-90N) SLP monthly anomaly covariance
NAM(18.0%)
PNA(10.3%)
EOF3(9.3%)

7. NAM

8. PNA

10. Ocean Events
ENSO
The index is the average SST anomaly equatorward of 20-degrees latitude (north and south) minus the average SST poleward of 20-degrees, and it captures the low-frequency part of the ENSO phenomena. Anomalies are with respect to the period
PDO
Derived as the leading PC of monthly SST anomalies in the North Pacific Ocean, poleward of 20N.

11. Ocean winter Spring Summer Autumn ENSO 0.2882 -0.0796 0.1173 0.0668
PDO
0.2497

12. SUMMARY Temperature is well related with Ozone concentration
The effect of atmospheric oscillation can be observed the whole year
The influence of SST can be seen in winter