Physics & Astronomy
annual variations
10%
boundary conditions
5%
chemistry
6%
depletion
6%
evaluation
36%
gases
29%
gradients
4%
hemispheres
8%
humidity
7%
methane
6%
mixing ratios
34%
nitrous oxides
9%
ozone
62%
performance
3%
polar regions
16%
simulation
2%
Southern Hemisphere
9%
stratosphere
69%
summer
8%
temperate regions
10%
temperature
2%
tracers
13%
Upper Atmosphere Research Satellite (UARS)
12%
vapor phases
5%
water vapor
7%
winter
9%
Agriculture & Biology
chemistry
7%
gases
43%
General Circulation Models
13%
geographical distribution
6%
humidity
7%
methane
7%
mixing ratio
45%
nitrous oxide
18%
ozone
60%
seasonal variation
7%
stratosphere
100%
subtropics
8%
summer
5%
temperature
3%
tracer techniques
16%
water vapor
8%
winter
5%
Earth & Environmental Sciences
analysis
2%
boundary condition
6%
chemical
28%
comparison
10%
distribution
11%
gas
29%
general circulation model
7%
humidity
6%
methane
6%
mixing ratio
33%
nitrous oxide
8%
ozone
44%
seasonal variation
6%
simulation
3%
stratosphere
54%
summer
4%
temperature
3%
tracer
12%
transport process
8%
water vapor
6%
winter
5%
Chemical Compounds
Methane
6%
Ozone
58%
Simulation
5%
Stratosphere
89%
Water Vapor
7%