Table 2. SO2 and CO2 Emission Rates from Cook Inlet volcanos (metric tons per day), number of traverses per flight (n), standard deviation (s.d.) for SO2; no measurements (n.m.), minimum value (>).
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Day Month Year SO 2 n s.d. CO 2
Rate Rate
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20 March 1990 4609 5 534 n.m.
21 March 1990 2033 8 261 n.m.
22 March 1990 1609 6 148 n.m.
23 March 1990 2502 6 97 n.m.
24 March 1990 3798 4 182 n.m.
01 April 1990 3892 9 1151 n.m.
06 April 1990 3662 6 619 n.m.
07 April 1990 2819 7 584 n.m.
08 April 1990 4145 8 433 n.m.
11 April 1990 4826 7 1381 n.m.
11 April 1990 2510 8 190 n.m.
14 April 1990 1691 8 286 n.m.
17 April 1990 5855 8 752 n.m.
22 April 1990 3464 8 584 n.m.
25 April 1990 6121 8 967 n.m.
27 April 1990 3601 8 939 n.m.
03 May 1990 3258 6 540 n.m.
04 May 1990 4115 9 323 n.m.
19 May 1990 3116 9 402 n.m.
20 May 1990 4177 9 534 n.m.
22 May 1990 4150 10 894 n.m.
25 May 1990 2492 11 404 n.m.
01 June 1990 1249 6 99 n.m.
02 June 1990 1489 4 421 1200
05 June 1990 3814 4 261 2400
07 June 1990 1601 7 313 n.m.
09 June 1990 2340 6 198 n.m.
11 June 1990 2462 3 39 n.m.
30 June 1990 657 6 100 n.m.
04 July 1990 868 6 174 n.m.
12 July 1990 1591 9 132 n.m.
16 July 1990 1131 6 205 n.m.
19 July 1990 2179 6 121 n.m.
03 August 1990 1660 6 219 n.m.
13 August 1990 1008 5 115 n.m.
14 August 1990 2376 6 138 n.m.
15 August 1990 1002 6 183 n.m.
15 August 1990 742 6 37 n.m.
15 August 1990 2609 5 368 n.m.
31 August 1990 469 5 161 n.m.
07 September 1990 188 4 21 n.m.
07 September 1990 680 3 81 n.m.
13 September 1990 723 4 78 n.m.
25 September 1990 297 6 43 n.m.
28 September 1990 897 6 89 n.m.
03 October 1990 366 8 21 n.m.
15 October 1990 586 4 36 n.m.
21 October 1990 510 9 76 n.m.
27 October 1990 162 8 36 n.m.
08 November 1990 577 8 158 n.m.
23 January 1991 297 2 140 n.m.
21 March 1991 35 7 10 n.m.
04 April 1991 149 9 45 n.m.
10 April 1991 29 5 11 n.m.
06 May 1991 73 5 25 n.m.
22 May 1991 24 4 7 n.m.
31 May 1991 0 2 0 n.m.
21 August 1991 0 2 0 n.m.
14 May 1992 0 1 0 n.m.
14 October 1992 0 2 0 0
23 October 1992 0 1 0 0
15 November 1992 0 1 0 0
24 April 1993 0 2 0 0
07 July 1994 0 2 0 0
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Day Month Year SO 2 n s.d. CO 2
Rate Rate
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22 July 1991 0 1 0 n.m.
21 August 1991 0 2 0 n.m.
29 August 1991 0 2 0 n.m.
03 Sepember 1991 85 2 18 n.m.
22 November 1991 0 2 0 n.m.
14 May 1992 88 2 10 n.m.
08 June 1992 21 2 4 n.m.
29 June 1992 5 5 3 n.m.
10 September 1992 0 0 0 n.m.
21 September 1992 23 5 12 n.m.
23 September 1992 24 4 7 n.m.
24 September 1992 79 3 11 n.m.
25 September 1992 300 4 54 11000
28 September 1992 194 4 25 12000
29 September 1992 749 3 75 8700
02 October 1992 452 2 0 n.m.
03 October 1992 220 4 114 4800
04 October 1992 212 4 72 3500
05 October 1992 356 4 173 2900
10 October 1992 243 3 100 n.m.
14 October 1992 47 3 4 2400
15 October 1992 64 2 4 n.m.
16 October 1992 105 4 16 >2000
19 October 1992 0 1 0 >0
23 October 1992 24 2 3 2100
29 October 1992 0 1 0 >0
10 November 1992 0 1 0 0
11 November 1992 0 3 0 0
12 November 1992 0 1 0 1100
13 November 1992 0 1 0 1000
15 November 1992 0 1 0 1000
08 December 1992 0 1 0 >1000
11 December 1992 0 1 0 >500
15 December 1992 0 1 0 3200
18 December 1992 0 1 0 >1000
23 December 1992 0 1 0 >1000
21 January 1993 0 1 0 >1000
18 February 1993 0 1 0 >400
24 April 1993 0 1 0 >930
07 July 1994 0 1 0 0
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Day Month Year SO 2 n s.d. CO 2
Rate Rate
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20 March 1990 0 2 0 n.m.
05 June 1990 0 2 0 n.m.
31 May 1991 24 4 5 n.m.
13 June 1991 18 2 4 n.m.
21 August 1991 41 3 9 n.m.
21 November 1991 0 3 0 n.m.
23 October 1992 35 2 6 0
24 April 1993 38 2 5 0
07 July 1994 19 2 6 0
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Day Month Year SO 2 n s.d. CO 2
Rate Rate
---------------------------------------------------
20 March 1990 0 2 0 n.m.
13 June 1991 4 3 1 n.m.
21 August 1991 0 2 0 n.m.
20 November 1991 0 2 0 n.m.
14 May 1992 0 2 0 n.m.
23 October 1992 0 1 0 0
07 July 1994 0 2 0 0
U.S. Department of Interior, U.S. Geological Survey
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Last modified: 02.27.01 (krw)