1 00:00:00,000 --> 00:00:02,916 [WAVES CRASHING] 2 00:00:02,916 --> 00:00:05,822 3 00:00:05,822 --> 00:00:07,280 Coastal erosion is the wearing away 4 00:00:07,280 --> 00:00:08,864 of material along a shoreline. 5 00:00:08,864 --> 00:00:10,280 And on the Virginia Eastern Shore, 6 00:00:10,280 --> 00:00:12,579 this is driven primarily by waves, 7 00:00:12,579 --> 00:00:14,120 and these waves are driven by storms. 8 00:00:14,120 --> 00:00:17,072 [THUNDER] 9 00:00:17,072 --> 00:00:21,008 10 00:00:21,008 --> 00:00:23,970 [WIND CHIMES] 11 00:00:23,970 --> 00:00:27,710 All storms bring waves, but it's actually your smaller storms, 12 00:00:27,710 --> 00:00:30,140 your low-energy but more frequent storms, that 13 00:00:30,140 --> 00:00:33,500 are driving waves that break immediately on the marsh edge 14 00:00:33,500 --> 00:00:35,420 and eat away at the sediment there. 15 00:00:35,420 --> 00:00:37,160 There's a lot of population growth 16 00:00:37,160 --> 00:00:40,100 and valuable infrastructure along Virginia's Eastern Shore 17 00:00:40,100 --> 00:00:42,320 that coastal landowners want to protect. 18 00:00:42,320 --> 00:00:44,430 UVA's been working out here to characterize 19 00:00:44,430 --> 00:00:47,810 marsh vulnerability to erosion and see what lines up to be 20 00:00:47,810 --> 00:00:49,420 the most vulnerable shoreline. 21 00:00:49,420 --> 00:00:51,320 We see seawalls, we see bulkheads, 22 00:00:51,320 --> 00:00:53,450 but there are several trade-offs associated 23 00:00:53,450 --> 00:00:54,590 with hardened structures. 24 00:00:54,590 --> 00:00:57,470 When waves come in and hit those hardened structures, 25 00:00:57,470 --> 00:00:58,710 they reflect off of that. 26 00:00:58,710 --> 00:01:00,590 And that energy tends to scour out 27 00:01:00,590 --> 00:01:03,800 the bottom making the water in front of your structure even 28 00:01:03,800 --> 00:01:06,830 deeper, and that deeper water actually allows 29 00:01:06,830 --> 00:01:09,530 more and more wave energy to approach the shoreline. 30 00:01:09,530 --> 00:01:11,690 So we have to come up with other solutions. 31 00:01:11,690 --> 00:01:14,540 Living Shorelines are a nature-based shoreline 32 00:01:14,540 --> 00:01:16,430 stabilization technique that's designed 33 00:01:16,430 --> 00:01:18,770 to control erosion while maintaining ecosystem 34 00:01:18,770 --> 00:01:19,310 functions. 35 00:01:19,310 --> 00:01:22,250 They're made of materials like natural vegetation, 36 00:01:22,250 --> 00:01:23,380 artificial oyster reefs. 37 00:01:23,380 --> 00:01:26,150 The oyster reef takes away energy from the wave 38 00:01:26,150 --> 00:01:28,550 and causes its height to decrease impacting with less 39 00:01:28,550 --> 00:01:30,710 energy, causing less erosion. 40 00:01:30,710 --> 00:01:33,080 The Nature Conservancy and the University of Virginia 41 00:01:33,080 --> 00:01:35,740 work together to try to get the best information 42 00:01:35,740 --> 00:01:37,820 to the coastal communities offering shoreline 43 00:01:37,820 --> 00:01:40,670 stabilization recommendations so that they're more resilient 44 00:01:40,670 --> 00:01:44,240 and can better adapt to coastal hazards. 45 00:01:44,240 --> 00:01:47,240 Having these reefs here helps to make the edge of our marsh 46 00:01:47,240 --> 00:01:50,970 more resilient and by having these big wide healthy marshes, 47 00:01:50,970 --> 00:01:53,572 they can help to make our communities more resilient. 48 00:01:53,572 --> 00:01:57,009 [MUSIC PLAYING] 49 00:01:57,009 --> 00:02:01,622 50 00:02:01,622 --> 00:02:03,330 There are a ton of people who are relying 51 00:02:03,330 --> 00:02:04,980 on the Chesapeake Bay and the Eastern Shore 52 00:02:04,980 --> 00:02:05,854 for their livelihood. 53 00:02:05,854 --> 00:02:07,800 And I know that my science will have 54 00:02:07,800 --> 00:02:09,300 an impact on the coastal community 55 00:02:09,300 --> 00:02:10,949 here at the Virginia Eastern Shore. 56 00:02:10,949 --> 00:02:12,900 To be able to serve them in this way, 57 00:02:12,900 --> 00:02:14,940 I feel very proud to be a part of the effort. 58 00:02:14,940 --> 00:02:17,990 [MUSIC PLAYING] 59 00:02:17,990 --> 00:02:27,190