DISCUSSION 27 
27 X. 1945 
: het vile, 
ee Z fg WK /, " 
= tal 10 mm : oe yt) Uf y)] Oa 
Isohye a ‘ 15 YP dy, ly Yl, esse 
4 ee af [i ws RECESS, 
: saan 4 (K neers Wy, Uy 
" 30 " y (eh 7 Uy Wf 
“ 40: -" UD // / / j //// Yy 7 
mC erelgeta yr] / is He hd 
ee 44 
Jo’ 
Wien, 
— 30 
Fig. 22—Rainfall over Holland, Oct. 26-27, 1945, 07z-07z 
perature difference that occurs at the surface in 
contrast with that aloft. I think I misunderstood 
you. Could you elaborate on that principle a bit? 
Dr. Tor Bergeron—Well, of course, as you 
noticed, I had to pass superficially over each 
item. The fact is that not only the temperature 
is increased, but also the contents of humidity, 
assuming with Palmén that the relative humidity 
remains, for instance, 85% at the ocean surface in 
both cases. Then, the warmer parcel may reach 
the cloud base with a temperature that is, say, 
1°C higher and follow another moist adiabatic 
line that is diverging from the former one to- 
wards higher temperatures. 
Mr. Jerome Namias—In other words, you as- 
sume the same relative humidity but an increased 
specific humidity ? 
Dr. Bergeron—Yes. The equivalent tempera- 
ture increases more than 1°C, of course. 
Mr. Namias—I am puzzled about your state- 
ment regarding the inability of radar to depict 
the release or the areas of release of latent energy 
as well as do precipitation maps. Did you mean 
the amount of it, or the area of it? 
Dr. Bergeron—I know that I was a little un- 
clear on that point; I beg you to excuse me. I do 
not claim that precipitation maps give a better 
picture of the areas of release of latent heat than 
