504. APPENDIX 
TABLE 1 
Signal Signal 
Time below Time first 
of detection, Soil of | detected, Soil 
Date | sunrise time Cloud condition temperature | sunset | time Cloud condition temperature 
12/13) 0653 1655 Few cirrus 1800 
Ne pV PB A DAO INE DO INI Rca INE Pe | AR 13C 
12/14| 0654 0845 0800 0800 1656 1615 1730 2000 
Clear 3.1C Overcast 9.0C 
Altostratus 
Cirrostratus 
12/15| 0655 0945 0800 Scattered low clouds 0800 1656 1715 1600 1700 
Scattered middle clouds 2.0C Scattered cirrus 19.4C 
Scattered altostratus 
12/16] 0655 0925 0800 0900 1656 1725 1700 1700 
Overcast 6.4C Scattered cirrus 19.3C 
High cirrus 
12/17| 0656 0940 0900 0900 1656 1730 1700 
Scattered cirrus 5.3C Few cirrus 17.9C 
12/18) 0656 0950 0900 0900 1657 1738 1700 2000 
Clear 6.0C Scattered cirrus and 8.5C 
altostratus 
12/19) 0657 0923 0900 0900 1657 1628 1700 1630 
Clear 8.8C Scattered cirrus 20.8C 
12/20| 1658 0910 | 0900 0900 1658 
Clear 8.7C 
OTTO LeT Se eT eT ele TTT Terrier etre Ty eT Ty) 
DATELAN-GILA BEND IO-CENTIMETER LINK 
MAXIMUM & MINIMUM FIELD STRENGTH 
MODIFIED INDEX 
PEPE 
z 
ni 
Oo 
a 
a 
a 
a 
OI 
cI 
ce Cots 
cot OI 
cH cig 
i] aay 
a1 mf, 
7m roa an 
I 
INDEX PLOTTED RELATI 
iia ar au TO 6/3 EARTH A ila 
iz 
@—o—eGILA BEND ! 
© -—-@—2 MID=PATH ! 
%:—--—x DATELAN +H IA 
EAE 
. 
HH 
P| 
Pa 
ay 
P 
5 
i 
HA 
hawall 
ak if 
Pai il 
4) 
= 
? se eet 
Ticure 3. Typical field strength and modified index curves, December 16 to 17, 1944. 
