NO A A PROFESSIONAL PAPER 11 



r . r ^ r . r . r ^ r ^ \ \ : < r . r i c . r . r ^ r . r . r . r . r ^ r ^ r . r ^ r ^ r ^ r ^ r . r 



H 1 1 \—\ 



I I I I I ' I I I I I ' I li ' I ' I ' I ' I ' I ' I ' 



' I i I ' I 



16 ee 64 ae 92 3b 



12 le II 2H 2B 32 3B HB i'^ Hfl i2 Sb bO 64 bB 72 IB 



1800 s 



1900 s 



I r . r . r . r . r . r . r . l ^ r . r . r^ r. r. r. r. r ^ r . r . r . r . r . r . r . r . r . r 



U B- 



3 



o. 



I I I I I I I I I I ' I ' 1 ' I I I I I > I ' I I I ' I ' I ' I ' h i I ' I ' I ' I ' I ' I ' I , ' I ' I 



7E flB an ea 92 BG B 



12 IE ZB 2H 2S 32 36 HB MH 46 S2 SB BE 64 bB 17 75 



1800 s 



1900 s 



FIGURE 3-4. — Departure of February and March Central Park Observatory (New York City) mean air temperatures from the long-term mean 



and long-term trend. 



56 



