EXPLANATION OP OCEAN TEMPERATURE CHART No. 9. 



BODY'S ISLAND LIGHT-HOUSE, NOETH CAEOLINA. 

 Observer: Peter G. Gallop. 



ZocaUou of station. — This light-house is situated near the southern end of Body's Island, north of Oregon Inlet, 

 North Carolina, and is ahout 35i miles north of Capo Hatteras, and about 86 miles northeasterly from Cape Lookout. 

 The shore is similar lo that at Cape Lookout, sandy, and shelving very gradually so as to afford but slight depths of 

 water near land. The 10-fathom curve is distant 2 miles, the 20-fathom curve 24 "miles, and the lOO-fathom curve 

 35 miles. 



GeograaMcalpoiition.—'Lti.titnde, 35° 49' 07" N. ; longitude, 75° 33' 49" W. 



Depth of water.— Seven to 9 feet. 



Bange of temperature.— Air, 64° (27° to 91°) ; surface, 63° (28° to 91°). 



The records for this station show an extraordinary range of temperature. The air and surface curves are almost 

 precisely alike and indicate the same range of temperature for both air and surface, within 1°. The lowest surface 

 temperatures recorded are probably the result of careless reading; the higher ones indicate that the observations 

 were probably made in very shallow and quiet water, directly influenced by the sun's rays during the heat of summer. 



The highest mean plotted, 91°, is 2^° higher than the maximum for the air at the Tortugas, and 4° higher than the 

 air maximum for any of the other stations to the south of Body's Island. The surface maximnm also exceeds that 

 of any of the more southern stations by 4i°. 



TaMe showing the direction of the rDinds, hj quadrants, for each month of the year, 'being the means of three years' oiservalions. 



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