WEBVTT 00:21.409 --> 00:23.809 Good morning . I'm Rusty Permenter . I 00:23.819 --> 00:26.389 am a research hydraulic engineer at the 00:26.399 --> 00:28.621 Army Corps of Engineers . I'll be going 00:28.621 --> 00:30.677 over the beach effects model today . 00:32.400 --> 00:34.344 The purpose of beach effects is to 00:34.344 --> 00:36.178 allow user to calculate the cost 00:36.178 --> 00:38.289 benefit analysis of beach nourishment 00:38.289 --> 00:40.122 through a Monte Carlo life cycle 00:40.122 --> 00:42.599 approach for emergency nourishment 00:42.610 --> 00:44.721 planned nourishment as well as armory 00:45.869 --> 00:47.980 morphology and damages are calculated 00:47.980 --> 00:50.036 for many independent life cycles and 00:50.036 --> 00:52.091 the independent life cycles are then 00:52.091 --> 00:54.479 rolled up into an overall distribution 00:54.490 --> 00:57.319 of damages . The model primarily 00:57.330 --> 00:59.330 calculates benefits due to national 00:59.330 --> 01:01.441 economic development and guidance for 01:01.441 --> 01:03.774 other accounts is currently forthcoming . 01:04.040 --> 01:05.984 Beach effects applies a simplified 01:05.984 --> 01:08.040 cross shore representation where the 01:08.040 --> 01:09.984 dune width , berm , width and dune 01:09.984 --> 01:12.099 height are varied to capture the full 01:12.110 --> 01:14.221 range of potential beach conditions . 01:15.129 --> 01:17.550 While the dune slope , foreshore slope , 01:17.709 --> 01:19.940 berm elevation and upland elevation are 01:19.949 --> 01:23.540 kept constant . The varied simplified 01:23.550 --> 01:26.069 profiles are combined with a full suite 01:26.080 --> 01:27.802 of storm events that cover the 01:27.802 --> 01:31.580 probability space of a given area and 01:31.589 --> 01:34.169 then run through a cross shore 01:35.230 --> 01:38.089 storm response model . This modeling 01:38.099 --> 01:40.940 work is then applied to assets within a 01:40.949 --> 01:44.790 given reach based on their location 01:44.930 --> 01:47.980 relative to the reach that has been 01:47.989 --> 01:51.300 modeled . So in this case , you can see 01:51.309 --> 01:53.476 the S speech landward boundary point . 01:53.476 --> 01:55.739 So S speech is the model that would be 01:55.750 --> 01:59.589 used to model your offshore morphology 01:59.599 --> 02:03.260 response . The white 02:03.269 --> 02:06.250 squares or diamonds are then projected 02:06.260 --> 02:10.009 onto the dotted line perpendicularly . 02:10.039 --> 02:12.389 And that allows the model to calculate 02:12.399 --> 02:15.589 the damages for a given asset for any 02:15.600 --> 02:17.740 given storm and profile combination . 02:18.649 --> 02:21.789 So over a life cycle , the speech 02:22.139 --> 02:25.589 results allow the , the model to 02:25.600 --> 02:27.322 calculate the evolution of the 02:27.322 --> 02:29.559 shoreline as well as the damages for 02:29.570 --> 02:32.009 every given event within a life cycle . 02:32.020 --> 02:34.500 The beach effects has extensively been 02:34.509 --> 02:36.199 applied to coastal storm risk 02:36.210 --> 02:38.470 management studies including Edisto 02:38.479 --> 02:41.309 Beach , Lagler County , Miami Dade 02:41.320 --> 02:44.729 Pinellas , San Juan Metro , South Point 02:45.029 --> 02:48.970 Pora Walton County Pocket , Cloudy 02:48.979 --> 02:51.146 Beach and then the chief's reports for 02:51.146 --> 02:53.201 all of these can be found at the URL 02:53.201 --> 02:54.923 listed in the powerpoint . The 02:54.923 --> 02:57.500 documentation can be found at the URL 02:57.509 --> 03:00.149 listed in the powerpoint Army Corps . 03:00.160 --> 03:02.160 Users can find the model in the app 03:02.160 --> 03:04.720 portal . Other users can find the model , 03:04.729 --> 03:06.729 the current model on the website as 03:06.729 --> 03:08.520 well . It's free for all users 03:11.289 --> 03:14.669 dic discovering , developing and 03:14.679 --> 03:16.790 delivering new ways to make the world 03:16.790 --> 03:18.830 safer and better every day .