Latest forecasts from the CiTTyCAT model.

This page was last updated:
Thu Aug 29 05:53:00 BST 2002

Forecast base time:
T = 2002082812

Final species concentrations for 5 day trajectories arriving at Mace Head.

T+0hrs | View trajectories


Ozone / ppb
CO / ppb
NO2 / ppt
C3H8 / ppt
OH / molec cm-3
PAN / ppt
Cluster Mean

25.533
66.398
2.896
9.401
0.32645e+07
0.177
Cluster Spread
Std. Dev.
0.823
3.370
0.579
1.246
0.37179e+06
0.024

Cluster max.
26.023
68.755
3.246
10.319
0.29527e+07
0.195

Cluster min.
25.111
64.392
2.500
8.731
0.29527e+07
0.166

T+24hrs | View trajectories


Ozone / ppb
CO / ppb
NO2 / ppt
C3H8 / ppt
OH / molec cm-3
PAN / ppt
Cluster Mean

20.086
96.124
6.312
41.999
0.17566e+07
1.869
Cluster Spread
Std. Dev.
4.028
2.137
2.418
4.145
0.15194e+06
1.199

Cluster max.
23.292
97.181
7.581
43.723
0.18337e+07
2.492

Cluster min.
18.023
94.512
4.426
38.574
0.16512e+07
0.888

T+48hrs | View trajectories


Ozone / ppb
CO / ppb
NO2 / ppt
C3H8 / ppt
OH / molec cm-3
PAN / ppt
Cluster Mean

18.032
94.608
4.279
52.476
0.18397e+07
0.840
Cluster Spread
Std. Dev.
7.092
41.576
7.861
78.309
0.66902e+06
1.660

Cluster max.
22.467
111.880
9.023
104.230
0.22037e+07
1.952

Cluster min.
12.907
66.956
0.261
12.130
0.13875e+07
0.018

T+72hrs | View trajectories


Ozone / ppb
CO / ppb
NO2 / ppt
C3H8 / ppt
OH / molec cm-3
PAN / ppt
Cluster Mean

30.799
96.558
4.850
56.897
0.20765e+07
2.877
Cluster Spread
Std. Dev.
1.916
5.918
0.688
14.080
0.24982e+06
0.747

Cluster max.
32.071
99.783
5.276
63.073
0.21921e+07
3.491

Cluster min.
29.650
91.768
4.417
45.085
0.18942e+07
2.487


Steve Arnold, IAS, University of Leeds.
sra@env.leeds.ac.uk
Tel: +441133431635