. Explorations of the United States Coast and Geodetic Survey steamer "Bache" in the western Atlantic, January-March, 1914, under the direction of the United States, Bureau of Fisheries : oceanography. nd that most of the area studied was about 10°, with coolerwater near the coast—i. e., that the general distribution of temper-ature was essentially similar to that of the 600-meter level. But thelow temperatures (about 7°) at stations 10181, 10183, 10185, and10171, suggest a tongue of cold water, extending from southeast to EXPLOEATIONS^ WESTERN ATLANTIC, STEAMER BACHE, 1914. 23 northwest, righ
. Explorations of the United States Coast and Geodetic Survey steamer "Bache" in the western Atlantic, January-March, 1914, under the direction of the United States, Bureau of Fisheries : oceanography. nd that most of the area studied was about 10°, with coolerwater near the coast—i. e., that the general distribution of temper-ature was essentially similar to that of the 600-meter level. But thelow temperatures (about 7°) at stations 10181, 10183, 10185, and10171, suggest a tongue of cold water, extending from southeast to EXPLOEATIONS^ WESTERN ATLANTIC, STEAMER BACHE, 1914. 23 northwest, right across the area traversed by the Bache, which has nocounterpart at the higher level. Its outline forbids the assumptionthat it can be northern water, unless in the form of an upwelling. How-ever, the existence of such a tongue depends on the temperature read-ing at station 10171, and as this is not accompanied by correspond-ingly low salinity, but the contrary, it is natural to wonder whetherit is correct. Discarding this one reading, the warm (10°) waterwould hardly be indented on the southeast (fig. 20), and the tempera-ture curves would agree much more closely with the salinities. The. CAPE HATTER Fig. 19.—Salinity at 600 meters. lowest temperatures at this level were off Cape Hatteras (4°-5°) andoff the Bahama Bank, and it is probable, though not certain, thatthere was a continuous belt of cold water all along the continentalslope. Salinity (fig. 21) like temperature at 1,000 meters was highestnorthwest and west of Bermuda, with a similar slight indentation byfresher water on the southeast. Although the salinity, unlike thetemperature, is practically uniform over a considerable area east andnortheast of the Bahama Bank—i. e., affords no evidence of upwellingon the slope—this apparent difference is not essential, because thecomparative uniformity of salinity below 1,000 meters makes it a far 24 EXPLORATIONS, WESTEEK ATLANTIC, STEAMER BACHE, 1914. less obvious
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