RELEASE AND RECORDER RECORD B4-29 
8. Termination Owing to Doubtful or Missing Data. If the following 
limits are exceeded and the requirements of §B4-7and 7.1 are not met, 
another release will be made. 
8.1 Missing Temperature. Whenever a stratum of missing temper- 
ature data is followed by a satisfactory record, the computations will be 
continued, provided the stratum or strata of missing data do not exceed 
the following limits: 
a. From the surface to 700 mb, 1 km. 
b. From the surface to 400 mb, 2 km with (a) satisfied. 
c. From the surface to 100 mb, 4 km with (a) and (b) satisfied. 
d. From the surface to the termination of the flight, 5 km with 
(a), (b) and (c) satisfied. 
e. When the tropopause occurs in astratum of missing tempera- 
ture data more than 3 km thick, the computations will be 
terminated. 
Whenever the limits above are exceeded inone stratum of missing data, 
the computations will be terminated at the base of the stratum. Whenever 
the limits above are exceeded in the summation of several strata of 
missi .g data, the computations will be terminated at the base of the stra- 
tum in which the limits above are exceeded. Entries made in the data 
blocks for significant levels above the termination ofthe flight, because 
of missing data, will be erased. 
8.2 Doubtful Ternperature. Whenever any portion of the temperature 
record is classified as doubtful, the computations willbe continued in the 
normal manner, except that more than 1 kmof doubtful temperature data 
below 700 mb will necessitate another release. 
8.3 Missing Relative Humidity. When relative humidity data are clas- 
sified as missing, the computation of a sounding will be continued in the 
normal manner except as provided in the next paragraph. 
If, because of prevailing weather conditions, the relative humidity is of 
decided importance, a stratum of missing relative humidity data exceed- 
ing the limits in JB4-8.1(a) and (b) will necessitate another release. 
Humidity will always be considered important when the station is located 
in an area for which severe weather warnings or watches have been 
issued. If time does not permit a second release, which would normally 
b= => (X) FMH#3 
