Upshot-Knothole Test Series
Nuclear Test DIXIE
Detonated: 6 April 1953
Time: 1530 GMT
TYPE OF DETONATION: Airdrop
ALTITUDE OF DETONATION: 1835 m (above ground)
REPORTED YIELD: 11 kilotons
RADIOIODINE PRODUCED: (I-131) PRODUCED: 1.7 x 10E6 Curies.
STABILIZED CLOUD HEIGHT: Top 13.1 km, msl
Base 10.1 km, msl
MEASUREMENTS AVAILABLE FROM GROUND-LEVEL COLLECTORS: Yes
RADIOIODINE IN COUNTIES WITHOUT GROUND-LEVEL COLLECTORS
ESTIMATED BY: Kriging
CLOSE-IN FALLOUT PATTERN AVAILABLE: No
Trajectory and Fallout Characteristics
Upshot-Knothole, DIXIE
Close-In Fallout
No Close-In Fallout data have been located for this test.
Town Data Base
Only one observation of radioactive fallout was recorded in the entire Town
Data Base (TDB) area. This was in the southeast part of area 2 of Washington
County, Utah. The value of the deposition was barely in the moderate range.
This is consistent with an air burst exploded at a relatively high altitude
above the ground (1835 m) combined with strong upper level winds that carried
the radioactive cloud rapidly away from the detonation site.
County Data Base
Only Washington County, Utah, of the entire County Data Base (CDB) region
recorded any fallout from test Dixie, a high-level airburst. The deposition
over the county was in the very light category (Fig.UK/4/TCDB). The debris
cloud was carried away rapidly to the east at high altitude on strong westerly
winds so little or no radioactivity would be expected in the CDB region.
Upper-Air Trajectories
Trajectories were calculated at only 9.2 and 11.8 km for this test
(Fig.UK/4/T) because of the high elevations of the cloud top and base and the
fact that an air drop explosion would generate little lower-level debris. These
trajectories moved eastward across the U.S. at high speed exiting the east coast
over the Carolinas in about one and one-fourth days.
Light depositions of radioactive iodine (I-131), both wet and dry, were
scattered over an area from northeast Florida to Minnesota to western Nevada and
then to northeast New Mexico (Fig.UK/4/F). Because those in the western states
were deposited (all were wet) on the first day after detonation and because of
the large distance north of the two trajectories, combined with the strong west-
northwesterly wind field, it is doubtful that those depositions resulted from
test Dixie. However, the moderate dry fallout in northeast Florida, on the day
after the 9.2 km trajectory passed near that station, may have resulted from
test Dixie debris.
In contrast, heavy depositions of I-131 attributed to this test occurred in
rain on the coast of lower New England about the middle of the second day (1200
GMT, 7 April to 1200 GMT, 8 April) after detonation (List, 1954). At this time,
the 11.8 km trajectory (the nearest one) was about 325 km south-southeast of
this area and was passing over a lower-level intense cyclonic (low pressure)
system which itself was moving eastward just south of the heavy deposition area.
The low pressure system's position was located from Weather Bureau upper air
charts. It is likely that circular winds in this storm, curving to the left
under the 11.8 km trajectory, intercepted debris carried down from high altitude
by precipitation. The circular (counterclockwise) winds in the lower part of
this storm curving toward the northwest then west toward New England carried the
radioactive precipitation into the affected area.
Very light wet and dry fallout continued in the same area through the
seventh day (1200 GMT, 12 April to 1200 GMT, 13 April). Reasons for the
continued depositions in this area are obscure.
REFERENCES
List, R. J., 1954: The transport of atomic debris from Operation Upshot-
Knothole. U.S. Atomic Commission, NYO-4602 (del); U.S. Weather Bureau,
Washington, D. C.
Figure UK/4/TDB/F. Estimated I-131 depositions, for each station of the
Town Data Base, resulting from the test DIXIE of 6 April 1953.
The symbols indicate the range of I-131 deposition, denoted as DEP: . for DEP=0;
1 for DEP between 0 and 3 nCi m-2; 2 for DEP between 3 and 10 nCi m-2;
3 for DEP between 10 and 30 nCi m-2; 4 for DEP between 30 and 100 nCi m-2;
5 for DEP between 100 and 300 nCi m-2; 6 for DEP between 300 and 1,000 nCi m-2;
7 for DEP between 1,000 and 3,000 nCi m-2; 8 for DEP between 3,000 and 10,000
nCi m-2; 9 for DEP between 10,000 and 30,000 nCi m-2; A for DEP between 30,000
and 100,000 nCi m-2; B for DEP greater than 100,000 nCi m-2.
Figure UK/4/TDB/TOA. Estimated initial time of arrival of fallout, for
each station of the Town Data Base, resulting from the test DIXIE of 6 April
1953.
The symbols indicate the range of initial time of arrival of fallout,
denoted as TOA: . if there is no deposition;
1 for TOA less than 3 hours;
2 for TOA between 3 and 10 hours; and
3 for TOA between 10 and 30 hours.
Table UK/4/TDB. Estimates of median I-131 depositions per unit area of ground
at the Town Data Base sites following the shot DIXIE
detonated 4/ 6/1953.
Test Test Site State County Sub- I-131 GSD Deposition
name date code county deposition weight
(y/mo/d) (nCi/m2)
DIXIE 530406 1 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 2 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 3 NV LINCOLN 1 0.0 1.0 0.0035
DIXIE 530406 4 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 5 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 6 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 7 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 8 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 9 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 10 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 11 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 12 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 13 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 14 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 15 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 16 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 17 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 18 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 19 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 20 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 21 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 22 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 23 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 24 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 25 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 26 NV LINCOLN 1 0.0 1.0 0.0035
DIXIE 530406 27 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 28 NV LINCOLN 1 0.0 1.0 0.0035
DIXIE 530406 29 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 30 NV LINCOLN 1 0.0 1.0 0.0035
DIXIE 530406 31 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 32 NV LINCOLN 1 0.0 1.0 0.0348
DIXIE 530406 33 NV LINCOLN 1 0.0 1.0 0.0035
DIXIE 530406 34 NV LINCOLN 1 0.0 1.0 0.0035
DIXIE 530406 35 NV LINCOLN 1 0.0 1.0 0.0035
DIXIE 530406 36 NV LINCOLN 2 0.0 1.0 0.1515
DIXIE 530406 37 NV LINCOLN 2 0.0 1.0 0.0152
DIXIE 530406 38 NV LINCOLN 2 0.0 1.0 0.0152
DIXIE 530406 39 NV LINCOLN 2 0.0 1.0 0.1515
DIXIE 530406 40 NV LINCOLN 2 0.0 1.0 0.1515
DIXIE 530406 41 NV LINCOLN 2 0.0 1.0 0.1515
DIXIE 530406 42 NV LINCOLN 2 0.0 1.0 0.1515
DIXIE 530406 43 NV LINCOLN 2 0.0 1.0 0.1515
DIXIE 530406 44 NV LINCOLN 2 0.0 1.0 0.0152
DIXIE 530406 45 NV LINCOLN 2 0.0 1.0 0.0152
Table UK/4/TDB (continued)
Test Test Site State County Sub- I-131 GSD Deposition
name date code county deposition weight
(y/mo/d) (nCi/m2)
DIXIE 530406 46 NV LINCOLN 2 0.0 1.0 0.0152
DIXIE 530406 47 NV LINCOLN 2 0.0 1.0 0.0152
DIXIE 530406 48 NV NYE 1 0.0 1.0 0.1389
DIXIE 530406 49 NV NYE 1 0.0 1.0 0.1389
DIXIE 530406 50 NV NYE 1 0.0 1.0 0.1389
DIXIE 530406 51 NV NYE 1 0.0 1.0 0.1389
DIXIE 530406 52 NV NYE 1 0.0 1.0 0.0139
DIXIE 530406 53 NV NYE 1 0.0 1.0 0.0139
DIXIE 530406 54 NV NYE 1 0.0 1.0 0.1389
DIXIE 530406 55 NV NYE 1 0.0 1.0 0.1389
DIXIE 530406 56 NV NYE 1 0.0 1.0 0.1389
DIXIE 530406 57 NV NYE 2 0.0 1.0 0.0046
DIXIE 530406 58 NV NYE 2 0.0 1.0 0.0046
DIXIE 530406 59 NV NYE 2 0.0 1.0 0.0046
DIXIE 530406 60 NV NYE 2 0.0 1.0 0.0046
DIXIE 530406 61 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 62 NV NYE 2 0.0 1.0 0.0046
DIXIE 530406 63 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 64 NV NYE 2 0.0 1.0 0.0046
DIXIE 530406 65 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 66 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 67 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 68 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 69 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 70 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 71 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 72 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 73 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 74 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 75 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 76 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 77 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 78 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 79 NV NYE 2 0.0 1.0 0.0046
DIXIE 530406 80 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 81 NV NYE 2 0.0 1.0 0.0046
DIXIE 530406 82 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 83 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 84 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 85 NV NYE 2 0.0 1.0 0.0459
DIXIE 530406 86 NV NYE 3 0.0 1.0 0.2439
DIXIE 530406 87 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 88 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 89 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 90 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 91 NV NYE 3 0.0 1.0 0.2439
DIXIE 530406 92 NV NYE 3 0.0 1.0 0.0244
Table UK/4/TDB (continued)
Test Test Site State County Sub- I-131 GSD Deposition
name date code county deposition weight
(y/mo/d) (nCi/m2)
DIXIE 530406 93 NV NYE 3 0.0 1.0 0.2439
DIXIE 530406 94 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 95 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 96 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 97 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 98 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 99 NV NYE 3 0.0 1.0 0.0244
DIXIE 530406 100 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 101 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 102 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 103 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 104 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 105 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 106 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 107 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 108 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 109 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 110 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 111 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 112 NV CLARK 1 0.0 1.0 0.0769
DIXIE 530406 113 NV CLARK 2 0.0 1.0 0.0102
DIXIE 530406 114 NV CLARK 2 0.0 1.0 0.1020
DIXIE 530406 115 NV CLARK 2 0.0 1.0 0.0102
DIXIE 530406 116 NV CLARK 2 0.0 1.0 0.1020
DIXIE 530406 117 NV CLARK 2 0.0 1.0 0.1020
DIXIE 530406 118 NV CLARK 2 0.0 1.0 0.1020
DIXIE 530406 119 NV CLARK 2 0.0 1.0 0.1020
DIXIE 530406 120 NV CLARK 2 0.0 1.0 0.1020
DIXIE 530406 121 NV CLARK 2 0.0 1.0 0.0102
DIXIE 530406 122 NV CLARK 2 0.0 1.0 0.1020
DIXIE 530406 123 NV CLARK 2 0.0 1.0 0.0102
DIXIE 530406 124 NV CLARK 2 0.0 1.0 0.1020
DIXIE 530406 125 NV CLARK 2 0.0 1.0 0.0102
DIXIE 530406 126 NV CLARK 2 0.0 1.0 0.0102
DIXIE 530406 127 NV CLARK 2 0.0 1.0 0.1020
DIXIE 530406 128 NV CLARK 2 0.0 1.0 0.0102
DIXIE 530406 129 NV CLARK 2 0.0 1.0 0.0102
DIXIE 530406 130 NV CLARK 3 0.0 1.0 0.3333
DIXIE 530406 131 NV CLARK 3 0.0 1.0 0.3333
DIXIE 530406 132 NV CLARK 3 0.0 1.0 0.3333
DIXIE 530406 133 NV ESMERALDA 1 0.0 1.0 0.7143
DIXIE 530406 134 NV ESMERALDA 1 0.0 1.0 0.0714
DIXIE 530406 135 NV ESMERALDA 1 0.0 1.0 0.0714
DIXIE 530406 136 NV ESMERALDA 1 0.0 1.0 0.0714
DIXIE 530406 137 NV ESMERALDA 1 0.0 1.0 0.0714
DIXIE 530406 138 NV ESMERALDA 2 0.0 1.0 0.2500
DIXIE 530406 139 NV ESMERALDA 2 0.0 1.0 0.2500
Table UK/4/TDB (continued)
Test Test Site State County Sub- I-131 GSD Deposition
name date code county deposition weight
(y/mo/d) (nCi/m2)
DIXIE 530406 140 NV ESMERALDA 2 0.0 1.0 0.2500
DIXIE 530406 141 NV ESMERALDA 2 0.0 1.0 0.2500
DIXIE 530406 142 UT WASHINGTON 1 0.0 1.0 0.2439
DIXIE 530406 143 UT WASHINGTON 1 0.0 1.0 0.2439
DIXIE 530406 144 UT WASHINGTON 1 0.0 1.0 0.2439
DIXIE 530406 145 UT WASHINGTON 1 0.0 1.0 0.2439
DIXIE 530406 146 UT WASHINGTON 1 0.0 1.0 0.0244
DIXIE 530406 147 UT WASHINGTON 2 0.0 1.0 0.0179
DIXIE 530406 148 UT WASHINGTON 2 0.0 1.0 0.1786
DIXIE 530406 149 UT WASHINGTON 2 0.0 1.0 0.0179
DIXIE 530406 150 UT WASHINGTON 2 117.9 1.4 0.1786
DIXIE 530406 151 UT WASHINGTON 2 0.0 1.0 0.1786
DIXIE 530406 152 UT WASHINGTON 2 0.0 1.0 0.1786
DIXIE 530406 153 UT WASHINGTON 2 0.0 1.0 0.1786
DIXIE 530406 154 UT WASHINGTON 2 0.0 1.0 0.0179
DIXIE 530406 155 UT WASHINGTON 2 0.0 1.0 0.0179
DIXIE 530406 156 UT WASHINGTON 2 0.0 1.0 0.0179
DIXIE 530406 157 UT WASHINGTON 2 0.0 1.0 0.0179
DIXIE 530406 158 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 159 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 160 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 161 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 162 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 163 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 164 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 165 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 166 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 167 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 168 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 169 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 170 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 171 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 172 UT WASHINGTON 3 0.0 1.0 0.0625
DIXIE 530406 173 UT WASHINGTON 3 0.0 1.0 0.0625
Figure UK/4/TCDB.
Figure UK/4/T. Estimated trajectories, at several altitudes, of the radioactive cloud resulting
from the test DIXIE of 6 April 1953. Numbers indicate the position of each
trajectory at 0000 GMT for several days following the explosion.
Figure UK/4/F.
Table UK/4/GF. Estimates of I-131 daily deposition derived from gummed-film results and associated
precipitation indices for the shot DIXIE detonated 4/ 6/1953.
. Dep = daily deposition of I-131 per unit area of ground (nCi per sq m)
. Pi = precipitation index
Site State Month and day
_____________________________________________________________________________________
4/ 6 4/ 7 4/ 8 4/ 9 4/10 4/11 4/12
Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi
ABILENE TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ALBANY NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ALBUQUERQUE NM 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ALPENA MI 0 1 0 1 0 1 0 1 0 1 0 1 0 1
AMARILLO TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ATLANTA GA 0 1 0 1 0 1 0 1 4 6 0 1 0 1
BALTIMORE MD 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BILLINGS MT 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BINGHAMTON NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BOISE ID 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BOSTON MA 0 1 1660 6 42 3 23 1 14 6 3 1 8 6
BUFFALO NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BUTTE MT 0 1 0 1 0 1 0 1 0 1 0 1 0 1
CARIBOU ME 0 1 0 1 0 1 0 1 0 1 0 1 0 1
CASPER WY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
CHARLESTON SC 0 1 0 1 0 1 0 1 0 1 0 1 0 1
CHEYENNE WY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
CHICAGO IL 0 1 0 1 0 1 0 1 0 1 0 1 0 1
COLO SPRINGS CO 0 1 0 1 0 1 0 1 0 1 0 1 0 1
CONCORDIA KS 2 4 0 1 0 1 0 1 0 1 0 1 0 1
CORPUS CRIS. TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1
DALLAS TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1
DANSVILLE NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
DEL RIO TX 0 1 0 1 0 1 0 1 NA 1 0 1 NA 1
DENVER CO 0 1 0 1 0 1 0 1 0 1 0 1 0 1
DES MOINES IA 0 1 1 2 0 1 0 1 0 1 0 1 0 1
DETROIT MI 0 1 0 1 0 1 0 1 0 1 0 1 0 1
DUNKIRK NY 0 1 0 1 0 1 0 1 0 1 0 1 3 5
EAST PORT ME 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ELKO NV 0 1 1 2 0 1 0 1 0 1 0 1 0 1
ELY NV 0 1 3 4 0 1 0 1 0 1 0 1 0 1
EUREKA CA 0 1 0 1 0 1 0 1 0 1 0 1 0 1
FARGO ND 0 1 0 1 0 1 0 1 0 1 0 1 0 1
____________________
NA = not available
1 Table UK/4/GF (continued)
Site State Month and day
_____________________________________________________________________________________
4/ 6 4/ 7 4/ 8 4/ 9 4/10 4/11 4/12
Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi
FLAGSTAFF AZ 1 3 2 4 0 1 0 1 0 1 0 1 0 1
FORT SMITH AK 0 1 0 1 0 1 0 1 0 1 0 1 0 1
FRESNO CA 0 1 0 1 0 1 0 1 0 1 0 1 0 1
GOODLAND KS 4 6 2 6 1 5 0 1 0 1 0 1 0 1
GRAND JNC CO 65 5 0 1 0 1 0 1 0 1 0 1 0 1
GRAND RAPIDS MI 0 1 0 1 0 1 0 1 0 1 0 1 0 1
GREEN BAY WI 0 1 0 1 0 1 0 1 0 1 0 1 0 1
HELENA MT 0 1 0 1 0 1 0 1 0 1 0 1 0 1
HURON SD 0 1 4 5 0 1 0 1 0 1 0 1 0 1
JACKSON MS 0 1 0 1 0 1 0 1 0 1 0 1 0 1
JACKSONVILLE FL 0 1 0 1 35 1 0 1 0 1 0 1 0 1
KALISPELL MT 0 1 0 1 0 1 0 1 0 1 0 1 0 1
KANSAS CITY MO 0 1 4 6 0 1 0 1 0 1 0 1 0 1
KNOXVILLE TN 0 1 0 1 0 1 0 1 0 1 0 1 0 1
LAS VEGAS NV 4 1 4 1 0 1 0 1 0 1 0 1 0 1
LOS ANGELES CA 0 1 0 1 NA 1 0 1 0 1 0 1 0 1
LOUISVILLE KY 0 1 0 1 3 5 0 1 0 1 4 5 0 1
LYNCHBURG VA 0 1 0 1 0 1 0 1 0 1 0 1 2 6
MARQUETTE MI 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MEDFORD OR 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MEMPHIS TN 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MIAMI FL 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MILFORD UT 2 2 0 1 0 1 0 1 0 1 0 1 0 1
MILWAUKEE WI 0 1 0 1 0 1 1 5 0 1 0 1 0 1
MINNEAPOLIS MN 0 1 2 4 0 1 0 1 0 1 0 1 0 1
MOBILE AL 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MONTGOMERY AL 0 1 0 1 0 1 0 1 0 1 0 1 0 1
NASHVILLE TN 0 1 0 1 0 1 0 1 0 1 2 6 0 1
NEW HAVEN CT 0 1 618 7 1 3 2 1 2 6 NA 1 10 6
NEW ORLEANS LA 0 1 0 1 0 1 0 1 0 1 0 1 0 1
NEW YORK AEC NY 0 1 18 7 0 1 0 1 0 1 0 1 0 1
PHILADELPHIA PA 0 1 1 5 0 1 0 1 0 1 0 1 0 1
PHOENIX AZ 0 1 0 1 0 1 0 1 0 1 0 1 0 1
PITTSBURGH PA 0 1 0 1 3 5 2 6 0 1 1 5 0 1
____________________
NA = not available
1 Table UK/4/GF (continued)
Site State Month and day
_____________________________________________________________________________________
4/ 6 4/ 7 4/ 8 4/ 9 4/10 4/11 4/12
Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi
POCATELLO ID 0 1 0 1 0 1 0 1 0 1 0 1 0 1
PORT ARTHUR TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1
PORTLAND OR 0 1 0 1 0 1 0 1 0 1 0 1 0 1
PROVIDENCE RI 0 1 585 7 13 2 2 4 4 6 1 1 1 5
PUEBLO CO 0 1 0 1 0 1 0 1 2 4 0 1 0 1
RAPID CITY SD 0 1 0 1 0 1 0 1 0 1 0 1 0 1
RATON NM 15 3 5 2 4 1 0 1 0 1 0 1 0 1
RENO NV 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ROCHESTER NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ROCK SPRINGS WY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ROSWELL NM 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SACRAMENTO CA 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SALT LAKE UT 26 6 0 1 3 4 0 1 0 1 0 1 0 1
SAN DIEGO CA 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SAN FRAN. CA 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SCOTTSBLUFF NB 1 3 0 1 0 1 0 1 0 1 0 1 0 1
SEATTLE WA 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SPOKANE WA 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ST. LOUIS MO 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SYRACUSE NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
TEXARKANA AK 0 1 0 1 0 1 0 1 0 1 0 1 0 1
TUCSON AZ 0 1 0 1 0 1 0 1 0 1 0 1 0 1
WASHINGTON DC 0 1 0 1 0 1 4 4 0 1 0 1 0 1
WATERTOWN NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1
WICHITA KS 2 3 1 5 0 1 0 1 0 1 0 1 0 1
WILLISTON ND 0 1 0 1 0 1 0 1 0 1 0 1 0 1
WINNEMUCCA NV 0 1 0 1 0 1 0 1 0 1 0 1 0 1
YUMA AZ 0 1 0 1 0 1 0 1 0 1 0 1 0 1
____________________
NA = not available
Figure UK/4/CD.