70 



CONSTRUCTION OF ISOBARIC CHARTS 



Table 15. 



Form for the dynamic Computations based on Kite Observations. 

 Omaha, Nebkaska, Sept. 23, 1898. 



* All records are kept on 75th meridian time which is l"" 24" faster than Omaha local mean solar time. 



Table 15. — Continued. 



Form for the dynamic Computations based on Kite Observations. 

 Omaha, Nebraska, Sept. 23, 1898. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



Computation of Ej' and Vp. 



Inch. 

 28.496 

 28.0 

 27.5 

 27.0 

 26.5 

 26.0 

 25.5 

 2.5.0 

 24.5 

 24.0 

 23.5 

 23.0 

 22.5 



18 550 



25 9.30 



33 550 



41 3.50 



49 310 



57 410 



65 640 



74 020 



82 550 



91 250 



100100 



109 100 



118 250 



67.0 

 69.5 



72 



74 



74 



73 



71.5 



70 



70 



68.5 



66 



63.5 



61.5 



Values of tr in situ. 







10 000 

 20 000 

 30 000 

 40 000 

 50 000 

 60 000 

 70 000 

 80 000 



00 000 



100 000 

 110 000 

 120 000 

 130 000 



21 



Time. 



h m 



7:52 



7:.57 



8:06 



8:45 



9:34 



10:22 



11:08 



11:36 



11:40 



12:10 



12:50 



1:00 



p.m. 



22 



67 



71 



74 



74.5 



73.5 



71.5 



71.0 



70.5 



67 



65 



62 



60 



.23 



Time. 



5:23 p. m 



5:10 



4:58 



4:48 



4:29 



4:12 



3:23 



2:12 



1:39 



1:30 



1:13 



1:00 



91.5 

 89.5 

 87.0 

 84.0 

 79.0 

 73.5 

 72.0 

 72.0 

 69.0 

 66.0 

 62.0 

 60.0 



6 

 7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 IS 

 19 

 20 

 21 

 22 



In this schematic presentation, the various cokimns as numbered have the fol- 

 loAving significance : 

 No. 1 contains the moments of observation. All time records are uniformly in 



75th meridian time. 



