47 



oceanojjraphic stations are indicated by a small circle on the maps, 

 and each fitxiire i^ives the number of the station. In or<icr to l)e able 

 to compare calculated current velocities and directions with the drift 

 of the bergs, also the track of the ice bergs have been put in on the 

 current maps. 



Figures 22 to 25 show the horizontal distribution of temperature 

 for 100 meters; Figures 26 to 29 for 200 meters. Isotherms are drawn 

 for each degree centigrade with a heavy line for 0, 5, 10, degree centi- 

 grade. The numerous vertical sections of temperature, salinity, and 

 density are not reproduced in this bulletin. They are going to be 

 publisiied and discussed in the ]\farion and General Greene report 

 where also the current maps and the circulation will be mentioned 

 more in detail and on a more scientific basis than can be done here. 

 See Coast Guard Bulletin 19, part 2, now in preparation. The 

 following, therefore, gives only a short description of the currents 

 as they appear after the observations and calculations. 



APRIL 2 TO APRIL 6, 1932 



The current map is based on 11 stations (station No. 1342 to 

 station No. 1352). The positions of the three stations 1345, 1346, 

 and 1351 are not reliable. The "Jacobsen-Jensen" method for 

 exterpolating is not satisfactory for the shallow stations, and the 

 curve for 970.10 decibars has, therefore, been drawn as a dotted heavy 

 line. The Labrador current, setting southward east of the slope 

 of the Grand Banks, has a velocity of between 18 and 19 miles a 

 day between the stations 1343 and 1344, and a velocity of 14 miles a 

 day between the stations 1349 and 1350. The northern edge of the 

 Gulf stream is seen between the stations 1351 and 1352, moving to 

 the east and the northeast. Figures 22 and 26 show the temperature 

 distribution in 100 and 200 meters, respectively. 



APRIL 19 TO MAY 5, 1932 



The map is based on 37 stations (stations Nos. 1353 to 1389). 

 The first 10 of these stations were taken during the three days April 19 

 to April 21. "\Miile working on station 1362, the crankshaft on the 

 Cummings generator for the hj^drographic winches broke, and we 

 had to proceed to St. John's, Newfoundland, for repair. The stations 

 1363 to 1389 were taken April 28 to May 5, 1932. 



The velocity of the Laborador current was about 8 miles a day 

 between the stations 1371 and 1372, and about 14 miles a day be- 

 tween 1382 and 1381; between the stations 1384 and 1385 less than 

 2 miles a day. The cold water creates a large eddy south of the tail 

 of the Grand Banks; the northern edge of the Gulf stream covers the 

 area about station 1387. The mean velocitv between the stations 



