Project Blue Book File on Tremonton Film, Utah, 1952

Text

A machine read this text from the scan. A second reading only partly agreed with it, so it may have mistakes. When the text and the image disagree, the image is right.

Alt

(MB)

2100 2

2 JUL 5 2

Hill AFB, Utah

Base Alt. 4,370'

No inversion layer present

Surface temp 70° F

$$
c = 5/9 (F - 32)
$$

$$
c = 21^{\circ}
$$

0
50
100
150

30,000' 300

400

20,000' 500

600

10,000' 700

800

4,000' 900

Lapse Rate approx 2.5°C/1,000' (normal)

20,000'

10,000'

No Lapse Rate

6000'

- 700 MB reading probably is +9°C (2fst, lapse rate is normal) approx 2°C/1000'

Lapse rate approx 5°C/1000'

Base altitude

-70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80

Temp °C

DECLASSIFIED Authority NND 923007