EXPLANATION OF OCEAN TEMPERATURE CHART No. 11. 



FIVE-FATHOM BANK LIGHT-SHIP, NEW JERSEY. 

 Observers : John Reeves, Daniel Manlove, William W. Smith. 



Location of sfaiion.— This light-ship is located about 14 miles' from the nearest part of the New Jersey coast, jast 

 east of Cape May, north of the entrance to Delaware Bay, and about 56 miles northeasterly from Winter-Quarter 

 Shoal light-ship. It is anchored about !■} miles outside of the 10-fatliom curve, in a depth of 12 fathoms. The 20- 

 fathom curve is distant 13J miles, the 100-fathora curve 55 miles. 



Geographical ^osiHon.— Latitude, 38° 48' (2S") N. ; longitude, 74° 36' (09") W. 



Depth of water. — Twelve fathoms. 



Eange of temperature (March 1 to January 1).— Air, 47° (36°.5 to 83°.5) ; surface, 39° (37° to TC°). 



The temperatures at this station differ somewhat from those at V/inter-Quarter Bhoal, and not constantly in the 

 same direction, being sometimes slightly higher, at others slightly lower, during corresponding periods. With a 

 single marked exception, the summer air temperatures averp,ge lower here; the surface curves are more nearly like 

 those at Winter Quarter, but do not show so low a minimum in the colder months plotted. An unusually high air 

 temperature was reached between June 19 and 29, 1883, accompanied mainly by southwesterly winds, which are the 

 prevailing winds for that month. This extreme variation is not observable at the neighboring stations, and it ap- 

 . pareutly had no influence upon the temperature of the water at this place. 



Table showing the direction of the winds, by qaadrants, for each month of the year, being the means of five years' observations. 



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