ATMOSPHERIC TRANSPORT PROCESSES
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Fig. 6—Potential vorticities (units, 1079? cm-sec-deg/g) of 300°K isentropic surface, at 12 GCT on Nov, 22, 1962.
295 and 300°K isentropic surfaces, attached itself to a lower stable
layer with potential temperatures of about 290°K. This lower layer was
too low and too slow to be of stratospheric origin (see Fig. 8 and for
comparison see also Fig. 4), Thus original estimates of the amount of
air involved in the sinking process were too high (see Table 1). Adjust-
ments were made by subtracting the air mass within the lower stable
layer from thetotal.
From Table 1 it appears that 0.6 x10! metric tons is a good
order-of-magnitude estimate of the air involved in the transport proTable 1—-AMOUNT OF AIR INVOLVED IN TRANSPORT OF
RADIOACTIVITY TO THE GROUND
Calculated mass
1962,
1962,
1962,
1962,
1963,
1963,
1963,
1963,
00 GCT
12 GCT
00 GCT
12 GCT
12 GCT
00 GCT
12 GCT
00 GCT
Corrected value,
10!2 metric tons
0.64
ofes
Nf
23,
23,
24,
24,
29,
30,
30,
31,
O-~ wo 0
oo.
Nov.
Nov.
Nov.
Nov,
Mar,
Mar.
Mar.
Mar,
10!2 metric tons
ee
Date and time
Uncorrected value,