Band spectra, 265 
Baroclinic disturbances, 457, 463 
fluids, hydrodynamic equations, 403 
instability, in fluid motion, 468 
waves studies, 459 
by Charney, 459 
by Eady, 459 
by Fjgrtoft, 459 
Barometric oscillations, use in studying 
upper. atmosphere, 251 
Barometric variations, lunar daily, 515 
solar daily, 521 
Barometry, tropical cyclones, 888 
Barotropic disturbances, 460, 463 
Barotropic fluids, hydrodynamic’ equa- 
tions, 403 
Barotropic models, advective models, 
linearized, 474 
nonlinear, 478 
Barotropic waves, stability of, 462 
Bead lightning, 141 
Bellani pyrgeometer, 55 
Bénard cells, 701, 1255 
Sutton’s theory, 1261 
Bifilar electrometer, 144 
Wult’s, 145 
Biological problems, actinometry and, 52 
Birkeland, model experiments of, 351 
Bishop’s ring, 71 
Bioclimatology, human, aviation medi- 
cine, 1121 
breathing, 1116 
clothing, 1115 
cooling, 1115 
Ge of aperiodic weather processes, 
20 
effects of extreme cold, 1122 
effects of extreme heat, 1122 
effect of periodic weather processes, 
1120 
erythema solare, 1118 
general effects of climate, 1117 
glare, 1119 
heat balance, 1112 
heat loss by convection, 1112 
heat production, 1112 
heat transfer by evaporation, 1113 
heat transfer by radiation, 1113 
meteorotropism, 1120 
ozone and, 287 
physical aspects, 1112 
radiation effects, 1118 
research needed, 1122 
space medicine, 1121 
sultriness and heat, 1114 
sunburn, 1118 
total heat balance, 1114 
vitamin D, 1119 
Blocking wayes, in planetary jet stream, 
Boenregen, electrical characteristics, 128 
Bolides, 356 
Bora, 669 
anticyclonic, 670 
cyclonic, 670 
Boreal forest, 953, 957 
southern limit, 958 
Boundary layer, in air flow, 492 
Bowen ratio, 1058, 1073 
Boys cameras, use in determining mech- 
anism of lightning discharge, 142 
Branching, 136 
Breezes, land and sea, as function of 
geographical location, 658 
description, 655 
desirable studies, 670 
effect of season on, 658 
effect of time of day on, 658 
explanation, 656 
intensity, 658 
phase shift, 661 
pressure differences during, 657 
pressure distribution during, 657 
INDEX 
Breezes, land and sea—continued 
range, 608 
single circulation cell, 660 
temperature differences during, 657 
theory of, 659 
tropical, 861 
vertical extent, 658 
sea, cold front-like, 659 
Conrad’s minor, 658 
direction, 655 
effect of cloudiness on, 658 
of the first kind, 658 
of the second kind, 659 
Brewster point, 79 
Bright band, and precipitation growth, 
1286 
on radarscope photographs, 1273 
Bright segment, 73 
Brocken-specter, 71 
Briickner cycle, 383, 817 
Cc 
Cage method, 149 
Capillary electrometers, in measurement 
of atmospheric electricity, 144 
Carbon dioxide, atmospheric content, 
effect on radiation diagrams, 37 
effect on radiation in stratosphere, 46 
infrared spectra, 296 
variation in atmospheric content over 
the sea, 4 
variations, effect on climate, 1015 
Carbon, isotopic variations in atmos- 
phere, 9 
Carbon monoxide content of atmosphere, 
a 
Cathode-ray oscillograph, in measure- 
ment of lightning characteris- 
ties, 142 
Ceilometers, 1218 
pulsed light, 1218 
radar, 1218 
Cellular convection; see Convection, cel- 
lular 
Connie instability, in fluid motion, 
46 
Characteristics, definition of, 421 
determination of, 421 
envelope of, 423 
method of, 421 
mathematical foundations, 421 
numerical integration of, 422 
quasi-linear differential equations, 
421 
Charge determinations, lightning dis- 
charges, 140 
Charney, baroclinic wave studies, 459 
Charts, moisture, use in meteorological 
analysis, 725 
use in meteorological analysis, 721 
Chemistry, atmospheric, 262 
absorption-tube methods for detect- 
ing gaseous materials, 1126 
absorption-tube method results, 1128 
condensation method, for determin- 
ing traces which form condensa- 
tion nuclei, 1127 
iodine, 1128 
methods, 1126 
ozone, of air strata near ground, 1129 
problems of, 1126 
results from condensation method, 
1131 
total oxidation of air, 1130 
gas, general principles, 263 
troposphere and, 262 
Chinook see Foehn 
Chlorine, atmospheric, 
1126, 1131 
ions, effect on condensation nuclei 
formation, 186 
Christian ora climatie changes during, 
100: 
determining, 
1319 
Circuit breakers, reclosing, use in light- 
ning protection, 142 
Circular vortex, characteristics, 432 
Circulation, Antarctic, 917, 925 
cellular character at sea level, 555 
comparison between Northern and 
Southern Hemispheres, 555 
general, air drift in middle latitudes, 542 
atmospheric, forms of, 822 
considerations in long-range fore- 
casting, 837 
density and meridional motion, 546 
developing cyclone, kinetic energy 
for, 545 
during strong polar vortex, 547 
effect of mountain ranges on, 547 
energy principles applied to, 568 
energy, total, global balance, 572 
flow types, and sunspot numbers, 840 
horizontal, 543 
horizontal kinetic energy, transport, 
545 
index cycle, 560 
internal dynamic consistency, 542 
irregular variations, 559 
kinetic energy, global balance, 568 
kinetic energy balance, 544 
kinetic energy balance fluctuations, 
546 
laboratory investigations, 1240 
lag correlations, 565 
low-index conditions, 547 
mean charts, reasons for use of, 552 
meridional circulation strips, 824 
meridional indices, 564 
meridional transfer of internal heat 
energy, 546 
models, 542 
momentum and energy balance, 548 
nonseasonal variations, 559 
normal state, 551 
northward transport, 543 
patterns, 551 
physical basis, 541 
physical climatology, 556 
qualitative synoptic studies, 559 
quantitative empirical studies, 562 
solenoidal index, 564 
sources of data, 551 
statistical studies, 564 
summer arctic anticyclone of stra- 
tosphere, 824 
trough motion, 563 
unordered heat exchange, 824 
wave motion, 563 
wave speed and time, 562 
westward progression, 561 
winter anticyclone in troposphere, 
824 
zonal wind speed and wave lengths, 
562 
geostrophic zonal wind speed, 555 
global, 541 
in cell in cumulus stage, 697 
indices, 555 
jet stream see Jet stream 
local, 653 
maximum index, 555 
mean, relationship of precipitation 
to, 810 
meridional and zonal, change between, 
meridional indices, 555 
normal, of lower stratosphere, 553 
of troposphere, 553 
patterns, Arctic, 944 
concepts, 943 
general, observational studies, 551 
index eycle, 560 
observational accuracy, 554 
qualitative synoptic studies, 559 
quantitative empirical studies, 562 
translation into weather anomalies, 
810 
