. Coastal Geography Conference. Coasts. 60 STETSON FEET 0 20 40 60 80 100 120 140 160 180 200 220 FEET 0_ , \ ^^ HIGHLAND \^,^ v^^^ OCTOBER 14 "^^v ^\ OCTOBER 27 ^V"^-^ .'v \ NOVEMBER 17 I0_ WATER UNE -3 HRS. 21 MINS. AFTER LjOW WATER I5_ \ \ WATER LINE \ \ IHR. 54 MINS. _ X 10 \ \_AFTER LOW WATER \ — \ _ \_LOW WATER LINE Figure 5. Highland traverse showing changes in the foreshore and backshore. Note the marked cutting between Octobe 14 and 27, with partial restoration by November 17. 0 40 60 80 100 120 140 160 180 200 220 HIGHLAND OCTOBER 14 OCTOBER 27 NOVEMBER 17. WATER LINE ^
. Coastal Geography Conference. Coasts. 60 STETSON FEET 0 20 40 60 80 100 120 140 160 180 200 220 FEET 0_ , \ ^^ HIGHLAND \^,^ v^^^ OCTOBER 14 "^^v ^\ OCTOBER 27 ^V"^-^ .'v \ NOVEMBER 17 I0_ WATER UNE -3 HRS. 21 MINS. AFTER LjOW WATER I5_ \ \ WATER LINE \ \ IHR. 54 MINS. _ X 10 \ \_AFTER LOW WATER \ — \ _ \_LOW WATER LINE Figure 5. Highland traverse showing changes in the foreshore and backshore. Note the marked cutting between Octobe 14 and 27, with partial restoration by November 17. 0 40 60 80 100 120 140 160 180 200 220 HIGHLAND OCTOBER 14 OCTOBER 27 NOVEMBER 17. WATER LINE ^. ^>c—3 HR& 21 MINS. AFTER LOW WATER WATER LINE IHR. 54MINS. — ^ iO \ N_AFTER LOW WATER \ — \ _ \_LOW WATER LINE Figure 6. Duxbury traverse showing slight fill on the backshore and cutting on the foreshore. This is a relatively stable beach. The emerged portion of the profile also shows considerable change of form. One of the most striking features which may appear very suddenly is a steepening of the beach profile with the cutting of a vertical scarp at the seaward edge of a berm. This scarp is usually of small dimensions but may, on a steep beach, be several feet high and, because the sand is loose, dif- ficult for a man to scale. It cannot be stated at present with any degree of certainty just what wave conditions are responsible for this cutting on the beach face but they are thought to be correlated with short, steep seas (Figs. 7 & 8). A series of aerial photographs have been taken on four flights from a PBY which is at- tached to the Oceanographic Institution. The flights covered the entire length of the outer Cape. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Coastal Geography Conference. [S. l. ] : Office of Naval Research
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectcoasts
