RELEASE AND RECORDER RECORD Baal 
b. Maintaining the lower portion of the straight edge in position 
(a), move the upper portion to successive points of change 
until the departure between the trend indicated by the straight- 
edge and any point of change on the intervening record equals 
or exceeds +1°C from the surface up to and including 100 mb 
and +2°C from 99 mb up to and including the termination. 
at A 
| and level no. 8 should have been placed at 
B, (significant changes in the slope of the Hi 
temperature trace, as indicated by the dashed HH 6 
A: 
Ri 
FOr atadapatsdduponanonat (ANNI OUUDG.=aseses=s 
nT | Re 
| re te ere 
i Harare set el etiares eaa rit tir 
it Pec ITI AH it 
1. rast Hirth Hof) tel tell te 
ai 1 || Hae il 
2 eR CALGH | | 
‘| Level no. 7 should have been placed atA ail LRAT eee 
de and level no. 8 should have been placed at Hl | : \| 
<|1 | B, (significant changes in the slope of the fale ‘| yy SERRE EEOEE 
indi ley jae EE 
1| temperature trace, as indicated by the dashed Med toseaseeos 
= + lines) (LO tear 
aan Oe 4 NG2E.8 7 
z1 i | | yiit) } iat i 
Tia jasei 
SH at ST Te ere hee ie pat 
all | | 1 {rt | 1 rey | ein 11 jeyt + 
2 | i} | |] rly Hi |) 1 | ry || 
aL Hi iil it || ne [ie ua ||: 
a TTT ret eet et 
| He fl ata yhrG dy | | a 
iol ‘| tala LL 0 lal LL 
oes! sige SaSS a SSeS seas: iJ 
naa PE itl 
| \ 
STAT A ATE 
= 4 ] | 2 Ho 
= HT — - ——- nis Ete 
= Level no. 2 should have been placed at A, = 
~ [71 | ("super" between levels no. 1 and 2 requires H 
aH a level be placed at or between 10 and 20 mbs 1 H | 
above the surface level). Hy 
x es 
5T | H- 
ie 
= 
| 
it 
= 
its ~ 
— 
Figure B4-2. Incorrect Selection of Significant Levels 
6.6 Additional Levels. Place additional levels as follows: 
a. At the highest complete contact of the first ascent, and at the 
same contact of the second or last ascent, when the radiosonde 
descends owing to icing or turbulence, and then rescends. 
1-1-69 FMH#3 
