Vertical levels

Below are examples of the vertical levels used by CCAM.  Note that there are two classes of vertical levels.  The first class ranges from 20m to 35 km and includes 27 levels as well as the eigenv.??b files.  The second class ranges from 12 m to 44 km and is described by the eigenv.?? files.  Typically the 20m-35km class is used for climate simulations, whereas the 12m-44km is used for numerical weather prediction.  Below are examples of some of the vertical levels used by CCAM with the corresponding eigenvector file.

eigenv27-10.300 (27 levels from 20 m to 35 km)

Level Approximate height Level Approximate height
0 0 m 14 2,100 m
1 20 m 15 2,600 m
2 65 m 16 3,200 m
3 120 m 17 4,000 m
4 180 m 18 5,000 m
5 260 m 19 6,300 m
6 350 m 20 7,700 m
7 460 m 21 9,300 m
8 580 m 22 11,000 m
9 740 m 23 13,000 m
10 920 m 24 16,000 m
11 1,100 m 25 19,000 m
12 1,200 m 26 25,000 m
13 1,700 m 27 35,000 m

 eigenv.35 (35 levels from 12 m to 44 km)

Level Approximate height Level Approximate height
0 0 m 18 5,510 m
1 11 m 19 6,170 m
2 50 m 20 6,870 m
3 128 m 21 7,630 m
4 243 m 22 8,440 m
5 394 m 23 9,300 m
6 579 m 24 10,200 m
7 798 m 25 11,300 m
8 1,050 m 26 12,400 m
9 1,340 m 27 13,700 m
10 1,660 m 28 15,100 m
11 2,010 m 29 16,800 m
12 2,400 m 30 18,800 m
13 2,820 m 31 21,100 m
14 3,280 m 32 24,100 m
15 3,780 m 33 28,100 m
16 4,320 m 34 34,200 m
17 4,890 m 35 43,700 m

eigenv.54 (54 levels from 12 m to 44 km)

Level Approximate height Level Approximate height Level Approximate height
0 0 m 19 2,750 m 38 11,200 m
1 12 m 20 3,030 m 39 11,900 m
2 40 m 21 3,330 m 40 12,600 m
3 85 m 22 3,640 m 41 13,400 m
4 146 m 23 3,960 m 42 14,300 m
5 223 m 24 4,300 m 43 15,200 m
6 314 m 25 4,660 m 44 16,100 m
7 420 m 26 5,040 m 45 17,200 m
8 540 m 27 5,440 m 46 18,400 m
9 674 m 28 5,850 m 47 19,700 m
10 822 m 29 6,290 m 48 21,300 m
11 983 m 30 6,740 m 49 23,100 m
12 1,160 m 31 7,220 m 50 25,300 m
13 1,350 m 32 7,720 m 51 28,100 m
14 1,550 m 33 8,240 m 52 31,700 m
15 1,760 m 34 8,780 m 53 36,500 m
16 1,990 m 35 9,350 m 54 43,700 m
17 2,230 m 36 9,940 m    
18 2,480 m 37 10,600 m    

eigenv.72 (72 levels from 12 m to 44 km)

Level Approximate height Level Approximate height Level Approximate height Level Approximate height
0 0 m 19 1,680 m 38 6,110 m 57 14,800 m
1 12 m 20 1,840 m 39 6,440 m 58 15,500 m
2 36 m 21 2,010 m 40 6,780 m 59 16,200 m
3 70 m 22 2,190 m 41 7,120 m 60 17,000 m
4 113 m 23 2,370 m 42 7,490 m 61 17,800 m
5 164 m 24 2,560 m 43 7,860 m 62 18,700 m
6 223 m 25 2,760 m 44 8,240 m 63 19,800 m
7 290 m 26 2,970 m 45 8,640 m 64 20,900 m
8 365 m 27 3,180 m 46 9,050 m 65 22,200 m
9 447 m 28 3,400 m 47 9,470 m 66 23,600 m
10 537 m 29 3,630 m 48 9,910 m 67 25,300 m
11 635 m 30 3,870 m 49 10,400 m 68 27,300 m
12 740 m 31 4,120 m 50 10,800 m 69 29,800 m
13 853 m 32 4,370 m 51 11,300 m 70 32,900 m
14 973 m 33 4,630 m 52 11,800 m 71 37,200 m
15 1,100 m 34 4,910 m 53 12,400 m 72 43,900 m
16 1,230 m 35 5,190 m 54 12,900 m    
17 1,380 m 36 5,490 m 55 13,500 m    
18 1,520 m  37 5,790 m 56  14,100 m    

eigenv.108 (108 levels from 12 m to 44 km)

Level Approximate height Level Approximate height Level Approximate height Level Approximate height Level Approximate height Level  Approximate height 
0 0 m 19 922 m 38 2,940 m 57 6,140 m 76 11,000 m  95  19,400 m
1 12 m 20 1,000 m 39 3,080 m 58 6,350 m 77 11,300 m  96  20,100 m
2 33 m 21 1,090 m 40 ,3,220 m 59 6,570 m 78 11,700 m  97  20,900 m
3 60 m 22 1,170 m 41 3,360 m 60 6,790 m 79 12,000 m  98  21,700 m
4 90 m 23 1,260 m 42 3,510 m 61 7,010 m 80 12,300 m  99  22,600 m
5 123 m 24 1,350 m 43 3,650 m 62 7,240 m 81 12,700 m  100  23,600 m
6 159 m 25 1,450 m 44 3,810 m 63 7,470 m 82 13,000 m  101  24,800 m
7 199 m 26 1,540 m 45 3,960 m 64 7,710 m 83 13,400 m  102  26,000 m
8 242 m 27 1,640 m 46 4,120 m 65 7,950 m 84 13,700 m  103  27,500 m
9 289 m 28 1,750 m 47 4,280 m 66 8,200 m 85 14,200 m  104  29,300 m
10 338 m 29 1,850 m 48 4,450 m 67 8,460 m 86 14,600 m  105  31,400 m
11 391 m 30 1,960 m 49 4,620 m 68 8,720 m 87 15,100 m  106  34,000 m
12 447 m 31 2,070 m 50 4,790 m 69 8,980 m 88 15,500 m  107  37,600 m
13 505 m 32 2,190 m 51 4,970 m 70 9,250 m 89 16,000 m  108  43,800 m
14 567 m 33 2,310 m 52 5,160 m 71 9,350 m 90 16,500 m    
15 632 m 34 2,430 m 53 5,350 m 72 9,810 m 91 17,000 m    
16 700 m 35 2,550 m 54 5,540 m 73 10,100 m 92 17,600 m    
17 771 m 36 2,680 m 55 5,730 m 74 10,400 m 93 18,100 m    
18 845 m 37 2,810 m 56 5,940 m 75 10,700 m 94 18,800 m