EXPLANATION OF OCEAN TEMPERATURE CHART No. 9. 

 BODY'S ISLAND LIGHT-HOUSE, KOKTH CAEOLINA. 

 Ohscrvei- : Peter G. Gallop. 



Location of station. — This ligbt-liouse is situated near tlie southern end of Body's Island, north of Oregon Inlet, 

 North Carolina, and is about 35| miles iioith of Capo Hatteras, and about 86 miles northeasterly from Cape Lookout. 

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

 water near laud. The 10-fathom curve i.s distant 3 miles, the 20-fatbom curve 24 miles, and the lOO-rathom curve 

 35 miles. 



Geographical jwiition. — Latitude, 35° 49' 07" N. ; longitude, 75° 33' 49" W. 



Depth of loater.— Seven to 9 feet. 



Range of temperature.— Kit, C4° (27° to 9P) ; surAice, C3° (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 21° higher than the maximum for the air at tho Tortugas, and 4° higher than the 

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

 of any of the more southern stations bj' 4i°. 



Tablcshowing the direction of the leinds, by quadrants, for each month of the year, being the means of three years' observations. 



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