. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 220 DISCOVERY REPORTS These depths were obtained on a zig-zag Hne of soundings run in March 1931 from the eastern end of the Burdwood Bank to the Shag Rocks. During this traverse fifty-three soundings of under 2000 m. were obtained, and of these, four were under 500 m., nineteen under 1000 m., and forty under 1500 m. A subsequent Hne of echo soundings during the season 1931-2, running from south to north across this Hne in about 54° W, gave six more soundings under 2000 m., one of which was unde
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 220 DISCOVERY REPORTS These depths were obtained on a zig-zag Hne of soundings run in March 1931 from the eastern end of the Burdwood Bank to the Shag Rocks. During this traverse fifty-three soundings of under 2000 m. were obtained, and of these, four were under 500 m., nineteen under 1000 m., and forty under 1500 m. A subsequent Hne of echo soundings during the season 1931-2, running from south to north across this Hne in about 54° W, gave six more soundings under 2000 m., one of which was under 1500 m. This hne crossed the earHer Hne in about 54° S, where the soundings were in close agreement, and continued north to 53° S. From here the Hne was run in a north-easterly direction to approximately 51" 30' S, 49° 00' W, where the course was altered to Fig. I. Key chart showing the areas covered by Charts 1-7, and positions of sections in Figs. 2-4. This southerly traverse along the 49th meridian crossed two of our earlier lines of soundings, the first in about 53° 20' S, and the second in about 54° 30' S. Unfortunately about 10 miles north of the former line the oceanic echo-sounding machine broke down and soundings were not resumed for about 30 miles, so that the confirmation of the depths recorded in the previous year was not possible. On the second line, however, the agreement was good. Fig. 3 b (p. 226) shows a section across the Scotia Sea which is based on this line of soundings. From it can be seen very clearly both the Tierra del Fuego—Shag Rocks ridge and also the connexion, double at this point, between the South Orkneys and Clarence Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institute of Oceanographic Sciences (Great Britain); National Institute of Oceano
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