Table 2. —Observed Currents, Atlantic Coast Lightships, Strengths and Slacks 



[Referred to Greenwich transits] 



Lightship and location 



Observations 



Date 



Peri- 

 od 



Slack 



Flood strength 



Time 



Direc- 

 tion 

 (true) 



Ve- 

 loc- 

 ity 



Flood 

 dura- 

 tion 



Slack 



Ebb strength 



Time 



Direc- 

 tion 

 (true) 



Ve- 

 loc- 

 ity 



Ebb 

 dura- 

 tion 



Mean 

 cur- 

 rent 

 hour 



Pollock Rip Slue (41°36'.7 N., 69°53'.8 W.) 



Pollock Rip (1934-35) (41°36'.l N., 69°51'.l W.) 



Stone Horse Shoal (1934-36) (41°32'.8 N., 69°59'.l W.)- 



Shovelful Shoal (41°32'.7 N., 69°59'.3 W.) 



Stone Horse Shoal (1918-19) (41°32'.4 N., 69°59'.2 W.)- 

 Handkerchief (41°29'.3 N., 70°04'.0 W.) __ 



Cross Rip (41°26'.9 N., 70°17'.5 W.)- 



Hedge Fence (41°28'.3 N., 70°29'.0 W.). 

 Brenton Reef (41°25'.9 N., 71°22'.6 W.)- 



Ram Island Reef (1913) (41°18'.2 N., 71°58'.5 W.). 

 Ram Island Reef (1915) (4l°l8'.0 N., 71°58'.5 W.)- 

 Bartlett Reef (41°16'.2 N., 72°07'.7 W.) --- .-. 



Cornfield Point (1913) (41°12'.9 N., 72°22'.6 W.). 

 Cornfield Point (1922) (41°12'.9 N., 72°22'.2 W.)- 



Dec. 



Aug. 



Aug. 



Sept. 



Dec. 



June 

 Aug. 



Sept 

 Aug. 



1918-July, 1921... 

 1934- Aug. 1935.. _ 

 1934-Aug. 1936- __ 



-Dec, 1913 



1918-Aug. 1919. -_ 



-Sept., 1911 



1934-Aug. 1935. 



-Dec. 1913 



1934-Aug. 1935... 



Sept.-Dec, 1913. 



Oct.- 

 June- 

 July 



Sept. 



July 



Dec, 1913 



-Oct., 1919 



1930-July, 1931. 



-Dec, 1913. 

 Oct., 1915.- 



Sept 

 Aug. 



-Dec, 1913 



1929-Mar. 1930. 



Sept.-Dec, 1913. 



Aug.- 

 Aug. 



■Nov. 1922 



1929-Dec. 1930. 



Days 

 720 



388 



748 



87 



255 



87 

 390 



87 

 385 



87 



87 

 120 

 370 



87 



87 

 226 



87 



113 



510 



Hours 



after 



0. T. 



7.01 



7.63 



7.86 



8.13 



8.07 



8.96 

 9.00 



9.84 

 9.66 



10.66 



6.95 

 6.71 

 6.83 



9.77 



9.76 



9.74 

 8.62 



9.70 



9.61 

 9.74 



Hours 



after 



G. T. 



9.78 



10.61 



11.25 



11.26 



11.37 



12.34 

 0.02 



0.77 

 0.65 



1.41 



10.29 

 10.31 

 10.83 



0.20 



0.23 



0.35 

 0.18 



0.71 



0.78 

 0.76 



De- 

 grees 

 8 



16 



37 



52 



60 



94 

 80 



102 

 91 



108 



356 

 353 

 343 



253 



258 



260 

 255 



257 



261 

 254 



Knots 

 1.67 



1.25 



1.98 



1.98 



2.55 



1.76 

 1.25 



1.35 

 1.29 



1.36 



0.50 

 0.46 

 0.35 



1.34 



1.29 



1.21 

 1.35 



1.82 



1.84 

 1.99 



Hours 

 5.60 



5.89 



6.54 



6.23 



6.56 



6.35 

 6.26 



6.61 

 6.70 



6.41 



6.22 

 6.54 

 6.22 



6.01 



6.03 



6.20 

 6.85 



6.63 



6.83 

 6.71 



Hours 



after 



O. T. 



0.19 



1.10 



1.98 



1.94 



2.21 



2.89 

 2.84 



4.03 

 3.94 



4.65 



0.75 

 0.83 

 0.63 



3.36 



3.37 



3.52 

 3.05 



3.91 



4.02 

 4.03 



Hours 



after 



G. T. 



3.48 



4.24 



4.76 



4.95 



5.04 



5.55 

 5.78 



6.86 

 6.79 



7.53 



3.80 

 3.70 

 3.73 



6.17 



6.21 



6.65 

 5.51 



6.73 



6.78 

 6.65 



De- 

 grees 

 197 



202 



226 



227 



240 



243 

 251 



271 

 272 



175 

 156 

 174 



90 



112 

 90 



Knots 

 1.94 



1.33 



1.78 



2.29 



2.44 



1.66 

 1.28 



0.98 

 0.93 



0.70 

 0.53 

 0.60 



1.58 



1.54 



1.47 

 1.30 



1.65 



1.57 

 1.76 



Hours 

 6.82 



6.53 



5.88 



6.19 



5.86 



6.07 

 6.16 



5.81 

 5.72 



6.01 



6.20 

 5.88 

 6.20 



6.41 



6.39 



6.22 

 5.57 



5.79 



5.59 

 5.71 



Hours 

 9.77 



10.55 



11.12 



11.23 



11.33 



12.09 

 12.17 



0.72 

 0.60 



1.40 



10.10 

 10.04 

 10.16 



0.22 



0.24 



0.41 

 12.10 



0.60 



0.64 

 0.64 





