34 A WORLD ATLAS OF ATMOSPHERIC RADIO REFRACTIVITY 



180 150 120 90 60 30 30 60 90 120 150 



80 



180 150 120 90 60 30 



30 60 90 120 150 



FIGURE A-4. Dry-term tropuspheric scale height in km. Hi: February. 



180 150 



80 



30 60 



150 180 



n 80 



180 150 120 90 60 30 



30 



90 120 150 180 



Figure A-5. Dry-term stratospheric scale height in km, H 2 : February. 



