ATMOSPHERIC -ELECTRIC DIURNAL -VARIATION RESULTS 



105 



Table 2. Diurnal -variation measurements of atmospheric-electric elements 



July 30-31, 1928. Latitude 58!8 N; Longitude 326.°0 E 



GMT 

 h 



LMT 

 h 



Pot'l: 

 grad. 

 V/m 



Con- 

 duc- 

 tivity 



in 

 10-4 

 esu 



Small 

 ions 

 per 

 cc 



Mobil- 

 ity 

 cm/s 

 per 

 v/cm 



Nu- 

 clei 

 per 

 cc 



Air- 

 earth 

 current 

 density 



in 

 10-7esu 



16.5 



17.5 



18.5 



19.5 



20.5 



21.5 



22.5 



23.5 



0.5 



1.5 



2.6 



3.6 



4.6 



5.6 



6.6 



7.5 



8.6 



9.5 



10.6 



11.6 



12.6 



13.5 



14.6 



15.6 



14.2 



15.2 



16.2 



17.2 



18.2 



19.3 



20.3 



21.2 



22.2 



23.3 



0.3 



1.3 



2.3 



3.3 



4.3 



5.3 



6.3 



7.3 



8.3 



9.4 



10.3 



11.3 



12.3 



13.3 



96 



10? 



89 



191 

 152 

 172 

 172 



122 

 112 

 106 

 122 

 109 

 106 



A+ 

 1.04 

 1.10 

 0.94 

 1.11 

 1.02 

 0.85 

 0.88 

 0.93 

 1.17 

 1.15 

 1.03 

 1.03 

 1.02 

 1.03 

 0.99 

 1.04 

 0.97 

 1.07 

 0.92 

 1.15 

 1.18 

 1.17 

 1.09 

 0.98 



n + 

 600 

 609 

 405 

 SOO 

 561 

 542 

 489 

 513 

 561 

 488 

 496 

 588 

 491 

 503 

 491 

 478 

 466 

 526 

 498 

 574 

 563 

 593 

 554 

 517 



1.20 

 1.25 

 1.61 

 1.28 

 1.26 

 1.09 

 1.25 

 1.26 

 1.45 

 1.26 

 1.44 

 1.22 

 1.44 

 1.41 

 1.40 

 1.51 

 1.44 

 1.41 

 1.28 

 1.39 

 1.45 

 1.37 

 1.36 

 1.31 



6.3a 



7.1 



5.3 



10.3 



8.5 



10.2 



12.8 



7.2 

 8.2 

 8.0 

 9.1 

 7.6 

 6.6 



^Air-earth current density computed from potential- 

 gradient and the sum of positive and negative conductivities, 



assuming \ + = 1.10 X . 



14.9 



16.3 



17.2 



18.2 



19.4 



20.4 



21.4 



22.3 



23.3 



0.3 



1.4 



2.4 



3.4 



4.4 



5.2 



6.2 



7.3 



8.2 



9.3 



10.3 



11.4 



12.4 



13.4 



14.6 



11.8 



13.2 



14.1 



15.1 



16.3 



17.2 



18.2 



19.2 



20.2 



21.2 



22.2 



23.2 



0.3 



1.3 



2.1 



3.1 



4.1 



5.1 



6.1 



7.1 



8.3 



9.3 



10.3 



11.4 



144 



140 



154 



140 



136 



139 



139 



131 



111 



94 



83 



76 



81 



90 



97 



97 



83 



78 



97 



97 



99 



111 



111 



106 



X. 

 0.60 

 0.65 

 0.63 

 0.83 

 0.86 

 0.80 

 0.88 

 0.91 

 0.93 

 1.01 

 0.99 

 1.06 

 1.06 

 1.09 

 1.02 

 0.99 

 1.02 

 1.11 

 0.98 

 1.03 

 0.96 

 0.95 

 0.94 

 0.98 



417 

 379 

 393 

 457 

 470 

 444 

 529 

 533 

 590 

 627 

 637 

 642 

 641 

 638 

 601 

 617 

 622 

 636 

 625 

 623 

 574 

 526 

 486 

 420 



1.00 

 1.19 

 1.11 

 1.26 

 1.27 

 1.25 

 1.16 

 1.19 

 1.09 

 1.12 

 1.08 

 1.15 

 1.15 

 1.18 

 1.18 

 1.11 

 1.14 

 1.21 

 1.09 

 1.15 

 1.16 

 1.25 

 1.34 

 1.62 



6.0 

 6.3 

 6.8 

 8.1 

 8.2 

 7.8 

 8.6 

 8.3 

 7.2 

 6.6 

 5.8 

 5.6 

 6.0 

 6.9 

 6.9 

 6.7 

 5.9 

 6.1 

 6.7 

 7.0 

 6.6 

 7.4 

 7.3 

 7.3 



August 14-15, 1928. Latitude 34.°8 N; Longitude 316.°7 E 



GMT 

 h 



LMT 



h 



Pot'l.- 

 grad. 



V/ra 



Con- 

 duc- 

 tivity 



in 

 10-4 

 esu 



Small 

 ions 

 per 

 cc 



Mobil- 

 ity 

 cm/s 

 per 

 v/cm 



Nu- 

 clei 

 per 

 cc 



Air- 

 earth 

 current 

 density 



in 

 10-''esii 



18.6 



19.8 



21.0 



21.8 



?3.0 



0.3 



1.4 



2.2 



3.3 



4.2 



15.7 

 16.9 

 18.1 

 18.9 

 20.1 

 21.4 

 22.5 

 23.3 

 0.4 

 1.3 



121 

 155 

 155 

 178 

 144 

 129 

 115 

 118 

 119 

 133 



X + 

 0.68 

 0.57 

 0.57 

 0.53 

 0.63 

 0.64 

 0.55 

 0.61 

 0.66 

 0.63 



n+ 

 517 

 467 

 490 

 340 

 453 

 418 

 465 

 502 

 515 



k+ 

 0.91 

 0.85 

 0.81 

 1.08 

 0.97 

 1.06 

 0.82 

 0.84 

 0.89 



5.2 

 5.6 

 5.6 

 6.0 

 5.8 

 5.2 

 4.0 

 4.6 

 5.0 

 5.3 



Observations discontinued because of rain. 



15.6 



16.9 



17.8 



18.7 



19.8 



20.8 



21.8 



22.8 



23.8 



0.7 



1.7 



2.8 



3.7 



4.8 



5.9 



6.8 



7.8 



8.8 



9.7 



10.7 



11.9 



12.9 



13.6 



14.8 



12.9 



14.2 



15.1 



16.0 



17.1 



18.1 



19.1 



20.1 



21.1 



22.0 



23.0 



0.1 



1.1 



2.2 



3.2 



4.1 



5.1 



6.2 



7.0 



8.0 



9.2 



10.3 



11.0 



12.1 



90 



99 



84 



88 



99 



101 



133 



127 



101 



108 



90 



83 



80 



84 



85 



97 



88 



108 



105 



107 



102 



102 



102 



70 



X+ 

 0.83 

 0.84 

 0.85 

 0.83 

 0.84 

 0.81 

 0.79 

 0.77 

 0.82 

 0.80 

 0.76 

 0.73 

 0.72 

 0.72 

 0.73 

 0.73 

 0.74 

 0.77 

 0.79 

 0.81 

 0.81 

 0.68 

 0.74 

 0.81 



535 

 591 

 519 

 525 

 553 

 584 

 667 

 629 

 591 

 527 

 512 

 475 

 463 

 519 

 464 

 514 

 527 

 509 

 508 

 476 

 466 

 473 

 446 

 438 



1.08 

 0.99 

 1.14 

 1.10 

 1.05 

 0.96 

 0.82 

 0.85 

 0.96 

 1.05 

 1.03 

 1.07 

 1.08 

 0.96 

 1.09 

 0.99 

 0.98 

 1.05 

 1.08 

 1.18 

 1.21 

 1.00 

 1.15 

 1.28 



4.8 

 5.3 

 4.5 

 4.7 

 5.3 

 5.2 

 6.7 

 6.2 

 5.3 

 5.5 

 4.4 

 3.8 

 3.7 

 3.9 

 3.9 

 4.5 

 4.1 

 5.3 

 5.3 

 5.5 

 5.3 

 4.4 

 4.8 

 3.6 



