https://www.geosciconsultants.com/blog daily 0.75 2024-09-25 https://www.geosciconsultants.com/blog/2024/9/25/mapping-nuisance-flooding-days-simple-but-effective-information monthly 0.5 2024-09-26 https://www.geosciconsultants.com/blog/2023/10/23/short-term-rentals-a-tool-in-the-resilience-toolbox monthly 0.5 2023-10-23 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/c3a65d94-ead5-4bac-91c4-d830321c44e9/example_30days.jpeg Blog - Short Term Rentals - A Tool In the Resilience Toolbox? - Make it stand out Example of increasing 30-day inundation zones on Sullivan's Island from 2022 to 2042 https://www.geosciconsultants.com/blog/2022/9/8/charleston-2040-add-1-foot-to-present-sea-level monthly 0.5 2022-10-05 https://www.geosciconsultants.com/blog/2021/3/26/shallow-groundwater-levels-and-flooding-from-rainfall monthly 0.5 2021-03-26 https://www.geosciconsultants.com/blog/2020/8/6/use-of-historic-shorelines-to-re-create-topography-for-risk-analysis monthly 0.5 2020-08-21 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1598020507420-P523ZKO4QYXMTKHSGRHG/1968_topography.png Blog - Use of Historic Shorelines to Re-Create Synthetic Topography for Risk Analysis Synthetic 1968 Shoreline Morphology https://www.geosciconsultants.com/blog/2020/2/4/sullivans-island-coastal-analysis-fun-on-a-beautiful-beach monthly 0.5 2020-08-13 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1597330058013-MUGSET5B233T166EQ2QD/IMG_0188.jpg Blog - Sullivans Island Coastal Analysis - Fun On A Beautiful Beach Sullivans Island erosion - c. 2020 https://www.geosciconsultants.com/blog/2020/4/11/barrier-islands-and-ebb-dominated-deltas-implications-of-slr-on-shoreline-change monthly 0.5 2020-04-15 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1586638908645-XCJ2NSSKMULZXU6RSV46/marsh_schematic.png Blog - Barrier Islands and Ebb Dominated Deltas: Implications of SLR on Shoreline Change Schematic of water volumes in marshes https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1586640022546-X7VW84P52NPIAVE7F84H/marsh_volume_data.jpg Blog - Barrier Islands and Ebb Dominated Deltas: Implications of SLR on Shoreline Change Table 1. Volume calculations from “pink area” in Figure 1. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1586952607627-AJK2A0GOO6G7I3ARW7NT/breach_inlet.png Blog - Barrier Islands and Ebb Dominated Deltas: Implications of SLR on Shoreline Change Breach Inlet and ebb delta - Note the expanse of sand extending from the northern island - Isle of Palms. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1586639481830-STZ3X48RXHFDEETHIM4J/marsh_flow_lines2.jpg Blog - Barrier Islands and Ebb Dominated Deltas: Implications of SLR on Shoreline Change Figure 1. Watershed analysis of marshes to the west of the barrier islands. Pink area is ‘theoretical’ drainage to Breach Inlet. https://www.geosciconsultants.com/blog/2019/2/25/measuring-shoreline-change-using-statistics-a-different-way-to-look-toward-the-future-from-the-past monthly 0.5 2019-02-26 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1551131496272-DDXSVRHLCTYRLWTBEBMM/Std_dev.jpg Blog - Measuring Shoreline Change Using Statistics - A Different Way To Look Toward the Future From the Past Standard Deviation of 20 years of shoreline elevations. https://www.geosciconsultants.com/blog/2018/9/14/hurricane-florence-can-politicians-learn-from-their-own-success monthly 0.5 2018-09-14 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1536947747624-771M0U7Q96KGJQ8LM3EG/model_tracks_flo.png Blog - Hurricane Florence – Can Politicians Learn From Their Own Success https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1536947607907-X5DU0H5VZ19RQM5KWOYJ/historical_florence.png Blog - Hurricane Florence – Can Politicians Learn From Their Own Success https://www.geosciconsultants.com/blog/2016/1/26/modelling-inundation-risk-from-storms-and-slr-a-presentation monthly 0.5 2016-04-22 https://www.geosciconsultants.com/blog/2015/4/27/time-vs-elevation-mapping-the-third-and-fourth-dimension monthly 0.5 2015-04-28 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1430137477350-MWYPYV205TXM6F3KHBDE/image-asset.gif Blog - Time vs. Elevation – Mapping the Third and Fourth Dimension Figure 1. Sea level change curves from NOAA and the computed average. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1430138008930-BGU3CP1QNSTMP6AO24JS/image-asset.jpeg Blog - Time vs. Elevation – Mapping the Third and Fourth Dimension Figure 2. Error/uncertainty values through time https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1430138106753-B2G1A9WGNTG9O56ZBUMB/image-asset.jpeg Blog - Time vs. Elevation – Mapping the Third and Fourth Dimension Figure 3. Relative error/uncertainty through time https://www.geosciconsultants.com/blog/2015/3/18/shoreline-change-analysis-of-complex-shorelines monthly 0.5 2021-03-26 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1426715968090-1I53DA4WADD83C0M4QEM/image-asset.jpeg Blog - Shoreline Change Analysis of Complex Shorelines Figure 1. Complex shorelines and the baseline (red) used to measure the change https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1426717500747-WFHLR1VFR2V7HIU3RZ90/image-asset.jpeg Blog - Shoreline Change Analysis of Complex Shorelines https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1426716176184-EEPYQP202PS0D0ZP3FT2/image-asset.jpeg Blog - Shoreline Change Analysis of Complex Shorelines Figure 2. A small area of shoreline - 150 m - showing the nearest node technique. Note that the more complex the shoreline change (#2) the more it deviates from a ‘traditional’ transect; in sections with uniform change (#1) the analysis begins to approximate a traditional transect. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1426716468532-706AGEI8PMFJ9WYKP369/image-asset.jpeg Blog - Shoreline Change Analysis of Complex Shorelines Figure 3. Results from node to node analysis in a complex shoreline change location https://www.geosciconsultants.com/blog/2015/1/23/deriving-inundation-risk-using-lidar-and-slosh-outputs monthly 0.5 2015-01-27 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1422032800294-151JE3OBH7AEBTR0Q9DU/image-asset.jpeg Blog - Deriving Inundation Risk Using Lidar and SLOSH Outputs Figure 2. Map of inundation risk (chances) from a category 1 hurricane hitting the Boston Area at high tide. Only areas with a 20% or greater chance are shown. The red contour highlights areas with a 60% or higher chance of inundation from a category 1 storm. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1422032893810-91LQFU9IJ2XIWKNS1FOM/image-asset.jpeg Blog - Deriving Inundation Risk Using Lidar and SLOSH Outputs Figure 3. 2025 Category 1 storm inundation risks. The same color scheme and contour value was used on both Figures 2 and 3. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1422032691283-P93F9PKFAUT9NL0F7IFU/image-asset.jpeg Blog - Deriving Inundation Risk Using Lidar and SLOSH Outputs Figure 1. SLOSH MOM data for Category 1 hurricane at Logan Airport. Blue areas are under water at some level and note that nearly every part of the airport is flooded. https://www.geosciconsultants.com/blog/2014/10/29/use-the-lack-of-information-to-generate-better-shorelines monthly 0.5 2014-10-29 https://www.geosciconsultants.com/blog/2014/9/9/coastal-lidar-classification-with-global-mappers-lidar-extension monthly 0.5 2014-09-26 https://www.geosciconsultants.com/blog/2014/7/18/71vo6bfq1c141agnfnxcxlj767kfro monthly 0.5 2014-07-19 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1405803095197-1QUVBP5XB665LPCBWZPD/image-asset.png Blog - Risk Mapping - A SLR Example https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1405803291561-BWTY6YH58LC61H4OGDLN/image-asset.jpeg Blog - Risk Mapping - A SLR Example Figure 2. 2050 estimate of SLR areas https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1405803362868-Q49IG7Y5AWZR2T14JHKN/image-asset.jpeg Blog - Risk Mapping - A SLR Example Figure 3. Risk based mapping product with areas above a 10% risk shown. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1405802578282-YDSMBEBWCIMU7NEJBXCF/image-asset.jpeg Blog - Risk Mapping - A SLR Example Figure 1. SLR Scenarios from NOAA, 2012 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1405803418449-NCH5YHHB2JGQKVQJW92V/image-asset.jpeg Blog - Risk Mapping - A SLR Example Figure 4. Close-up view of Absecon Island Risk map with at-risk properties above 10% https://www.geosciconsultants.com/blog/2014/6/28/lidar-in-nantucket monthly 0.5 2020-08-21 https://www.geosciconsultants.com/blog/2014/6/11/beach-change-from-lidar monthly 0.5 2014-06-12 https://www.geosciconsultants.com/blog/2014/6/11/when-was-the-data-collected-apples-vs-apples monthly 0.5 2014-06-12 https://www.geosciconsultants.com/blog/2014/6/11/tides-are-a-major-consideration monthly 0.5 2014-06-30 https://www.geosciconsultants.com/blog/tag/Shoreline+change monthly 0.5 https://www.geosciconsultants.com/blog/tag/Shoreline+Mapping monthly 0.5 https://www.geosciconsultants.com/blog/tag/Risk+Mapping monthly 0.5 https://www.geosciconsultants.com/blog/tag/Historic+Shorelines monthly 0.5 https://www.geosciconsultants.com/blog/tag/Coastal+Lidar monthly 0.5 https://www.geosciconsultants.com/blog/tag/Short+Term+Rentals monthly 0.5 https://www.geosciconsultants.com/blog/tag/Isle+of+Palms monthly 0.5 https://www.geosciconsultants.com/blog/tag/Resilience monthly 0.5 https://www.geosciconsultants.com/blog/tag/Sullvan%27s+Island monthly 0.5 https://www.geosciconsultants.com/projects daily 0.75 2025-10-22 https://www.geosciconsultants.com/projects/2025/10/22/resilience-design-for-shell-point-parris-island-interchange monthly 0.5 2025-10-22 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/c4a0e30a-8009-4695-8317-2027bec5f22f/HurrMathewWaves.jpg Projects - Resilience Design for Shell Point - Parris Island Interchange - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.geosciconsultants.com/projects/2023/8/1/military-installation-resilience-review-beaufort-county-sc monthly 0.5 2023-08-01 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/ceef29c5-7903-4473-b3fc-7a6b7a3e223b/hurricane_cat1_present.jpg Projects - Military Installation Resilience Review – Beaufort County, SC - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.geosciconsultants.com/projects/2023/2/16/bluff-stability-analysis-using-15-years-of-lidar-data monthly 0.5 2023-02-16 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/0ccf31c8-d4e2-4b94-9b57-a38b9393ed13/example_lidar.jpg Projects - Bluff Stability Analysis Using 15 Years of Lidar Data - Make it stand out Example of the complex lidar returns from dense vegetation and steep bluffs at the sits. https://www.geosciconsultants.com/projects/2023/2/16/marsh-evolution-and-sedimentation-on-the-whale-branch-portion-of-port-royal-sound monthly 0.5 2023-02-16 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/5898ddae-e428-4f30-bacd-69476542a6cc/2003_NDVI.jpg Projects - Marsh Evolution and Sedimentation on the Whale Branch Portion of Port Royal Sound - Make it stand out 2003 NDVI values from the marsh island studied. Note the difference between the two sides of the now abandonded train tracks. https://www.geosciconsultants.com/projects/2023/2/16/forested-wetland-values-along-the-black-and-waccamaw-rivers-south-carolina monthly 0.5 2023-02-16 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/f7bc7cc0-8be2-493c-8190-8fa0fc8cb725/yearly_water_withoutFP.jpg Projects - Forested Wetland Values Along the Black and Waccamaw Rivers, South Carolina - Make it stand out Example of flooding during 5-year event without the forested floodplain storage. https://www.geosciconsultants.com/projects/2020/2/3/measurement-of-floodplain-value-for-downstream-flood-reduction monthly 0.5 2020-02-03 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1580766218703-VOY51NLSD806XFL3KSZ4/example_use.jpg Projects - Measurement of Floodplain Value for Downstream Flood Reduction Example use; assuming the development (highlighted in gray) would preclude flooding in the area, the total lost value of floodplains per year is $14,570. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1580767521499-GT9CX3UAKZAA8KECB2S0/results_grid_present.jpg Projects - Measurement of Floodplain Value for Downstream Flood Reduction Value of floodplains in 2019 dollars/acre https://www.geosciconsultants.com/projects/2019/8/20/lower-savannah-watershed-management-planning monthly 0.5 2019-10-09 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1570634103176-TN7RJEDV8WS7JFLL8ERZ/nit_conc_baseline.jpg Projects - Lower Savannah Watershed Management Planning NSPECT modeled stream concentrations - Nitrogen https://www.geosciconsultants.com/projects/2019/2/26/coupled-coastal-and-riverine-risk-modeling-tnc-northcoast-project monthly 0.5 2019-02-26 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1551196995050-YDVXKU52AFBUTRZRK9F3/GSF_example_conway.jpg Projects - Coupled Coastal and Riverine Risk Modeling - TNC Northcoast Project Example 2035 Flood Risk Map - Cool tones highlight more chance for inundation https://www.geosciconsultants.com/projects/2017/4/14/sea-level-rise-and-infrastructure-vulnerability-beaufort-sc monthly 0.5 2017-04-14 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1492204988700-GZSR06HEP61ASB1MAGFW/image-asset.jpeg Projects - Sea Level Rise and Infrastructure Vulnerability - Beaufort SC "Sunny Day" flooding in the Lowcountry of SC https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1492203939931-TX298NGP5JMJE2HKNQFL/image-asset.png Projects - Sea Level Rise and Infrastructure Vulnerability - Beaufort SC Screening for Vulnerable and Critical Infrastructure https://www.geosciconsultants.com/projects/2015/9/7/graveline-bayou-navigation-and-habitat-study monthly 0.5 2015-09-07 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1441634426182-YEGJV2GFU9D09MKHMSN2/image-asset.jpeg Projects - Graveline Bayou Navigation and Habitat Study Figure 2. Lidar derived elevation changes between 2005 and 2009. Blue is a loss of elevation and red is an increase. This surface was used to generate volumetric changes during the period. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1441634310490-Q5DZBLW0FQXUBFABJ9YE/image-asset.jpeg Projects - Graveline Bayou Navigation and Habitat Study Figure 1. 2013 aerial image of the bayou mouth; the blue outline is the 1992 shoreline and the green outline is the inland extent of the 1992 sandy beach stabilizing the spit. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1441636996848-R0FTHFL3QHQ1DN5NLBCX/image-asset.jpeg Projects - Graveline Bayou Navigation and Habitat Study Figure 3. 2015 aerial image with potential new channel location https://www.geosciconsultants.com/projects/2015/5/27/coastal-risk-mapping-in-salem-sound monthly 0.5 2023-09-21 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1432749434858-Q3RNAFD0N2QKRK127G59/image-asset.jpeg Projects - Coastal Risk Mapping in Salem Sound - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.geosciconsultants.com/projects/2015/1/12/san-francisco-bay-benthic-mapping monthly 0.5 2015-05-27 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1421085818374-IW81C1DV6YGP2VU7UILI/sand_diatoms.png Projects - San Francisco Bay Benthic Mapping Towed camera used to document benthic habitats https://www.geosciconsultants.com/projects/2015/1/12/marsh-migration-technical-consulting monthly 0.5 2015-01-12 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1421084178347-B0QNUCSP145P72ZIG9WH/image-asset.jpeg Projects - Marsh Migration - Technical Consulting Marsh migration and land cover change from SLR - NOAA model https://www.geosciconsultants.com/projects/2015/1/12/human-induced-shoreline-change monthly 0.5 2015-01-12 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1421082596672-VCWZJ3VOARERWBHQAASV/image-asset.jpeg Projects - Human Induced Shoreline Change https://www.geosciconsultants.com/projects/2014/6/30/shoreline-analysis-and-conceptual-design monthly 0.5 2014-07-03 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1404134222941-ZJZJBBMB5SEHAO9UT393/image-asset.jpeg Projects - Shoreline Analysis and Conceptual Design https://www.geosciconsultants.com/projects/2014/6/30/low-profile-groin-performance-assessment monthly 0.5 2014-07-31 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1406837899975-07XINH9GCPSHKS04H2YA/image-asset.jpeg Projects - Low Profile Groin Performance Assessment Coastal change and analysis data at the site including topographic and bathymetric LiDAR, aerial imagery, shorelines, and beach profiles https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1404137221112-FXZRVVWJ3L1DM90PNHWT/image-asset.jpeg Projects - Low Profile Groin Performance Assessment 3D view of low profile groin installation https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1404137428472-MK7IXGH3KEB5OYQ56YRF/image-asset.jpeg Projects - Low Profile Groin Performance Assessment Shoreline change in area of low-profile groins; shoreline data collected prior to installation of low-profile groins. https://www.geosciconsultants.com/projects/2014/6/24/graveline-bayou-ms-analysis-of-marsh-elevations-and-habitat-restoration-needs monthly 0.5 2023-08-15 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1403624910544-2X3DQZ2NX6PN3FO10V1J/image-asset.jpeg Projects - Graveline Bayou, MS - Analysis of Marsh Elevations and Habitat Restoration Needs Lidar DEM with affected area in red https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1403625312564-91EOIOZ5OE0BLBPY0STG/image-asset.jpeg Projects - Graveline Bayou, MS - Analysis of Marsh Elevations and Habitat Restoration Needs SLAMM run for 2020 based on low Sea Level Rise Scenario in the affected area https://www.geosciconsultants.com/projects/2014/6/24/plymouth-park-charleston-breakwater-analysis monthly 0.5 2014-06-24 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1403621261847-JEA1TXQU9VPCAD5TWY5X/image-asset.jpeg Projects - Plymouth Park, Charleston - Breakwater Analysis Integrated topo-bathy from Lidar and bathymetry sources overlain with engineering and imagery used to assess conditions and sediment transport https://www.geosciconsultants.com/projects/2014/6/24/harbor-dredge-and-shoaling-analysis monthly 0.5 2014-06-24 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1403614964060-WG5PL66ZXTFGA5CB5MGH/image-asset.jpeg Projects - Harbor Dredge and Shoaling Analysis Sediment transport cells and predicted shoreline changes https://www.geosciconsultants.com/projects/2014/5/16/crystal-systems monthly 0.5 2014-09-18 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1402618214329-TRLB7J1DG8LX2P6WUNQF/image-asset.jpeg Projects - Crystal Systems Crystal Information System Analysis https://www.geosciconsultants.com/projects/2014/5/16/indian-pass-florida monthly 0.5 2014-09-18 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1400295484301-J2HRJWT2RKLA5LP5UP3G/indian-pass.jpg Projects - Indian Pass, Florida   Figure 2: Historic (Pre 1980) shoreline locations and change in the area of investigation. https://www.geosciconsultants.com/projects/2014/5/16/daniel-island-alternate-shoreline-protection-schemes monthly 0.5 2014-09-18 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1403616690090-XXYTKC7BHQPQJMXP2CLS/100_1293.JPG Projects - Daniel Island – Alternate Shoreline Protection Schemes Eroding shoreline with previous oyster and marsh restoration measures in foreground. https://www.geosciconsultants.com/projects/2014/5/16/long-beach-sediment-transport monthly 0.5 2014-09-18 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1403613414680-PPX8TCETJ1P58QOAT9EK/image-asset.jpeg Projects - Long beach – Sediment Transport Site diagram highlighting various sediment transport mechanisms and the planned modifications. https://www.geosciconsultants.com/projects/category/Coastal+Geology monthly 0.5 https://www.geosciconsultants.com/projects/category/Mapping%2FGIS monthly 0.5 https://www.geosciconsultants.com/projects/category/Lidar monthly 0.5 https://www.geosciconsultants.com/projects/tag/shoreline+change monthly 0.5 https://www.geosciconsultants.com/projects/tag/SLR monthly 0.5 https://www.geosciconsultants.com/projects/tag/Lidar monthly 0.5 https://www.geosciconsultants.com/projects/tag/Riverine+Flooding monthly 0.5 https://www.geosciconsultants.com/projects/tag/lidar monthly 0.5 https://www.geosciconsultants.com/projects/tag/Wetland monthly 0.5 https://www.geosciconsultants.com/projects/tag/Sedimentation monthly 0.5 https://www.geosciconsultants.com/home daily 1.0 2013-01-30 https://www.geosciconsultants.com/lidar-services daily 0.75 2014-07-03 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1400294874710-TRB55Q88OVCIOAT4EZ77/services-lidar.jpg Lidar Services https://www.geosciconsultants.com/contact daily 0.75 2020-02-03 https://www.geosciconsultants.com/coastal-geology daily 0.75 2014-05-25 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1400294897929-2VRJG4W6A3OMV01TBODR/services-coastal-gelogoy2.jpg Coastal Geology https://www.geosciconsultants.com/about daily 0.75 2018-08-14 https://www.geosciconsultants.com/mapping-and-gis daily 0.75 2014-05-25 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1400294926135-TAKL4TQZB32IFW3WVCEQ/mapping-gis.jpg Mapping and GIS https://www.geosciconsultants.com/qualificationsbackground daily 0.75 2025-10-22 https://www.geosciconsultants.com/shorelines daily 0.75 2023-02-03 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/ea8280dc-2cd5-41c5-b1db-97e93fe2a4b7/historic_shorelines.jpg Shorelines - Make it stand out Click here to get the data https://www.geosciconsultants.com/sullivanshomepage daily 0.75 2023-02-15 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1589901515694-OJQQB4HPYUDMVTB9Z2AW/nice_google_earth_example.jpg SullivansHomePage https://www.geosciconsultants.com/gps_shorelines daily 0.75 2023-02-02 https://www.geosciconsultants.com/lidar daily 0.75 2020-04-24 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1587737263682-61DC7WSX0QWR051ERJ4A/lidar_points.jpg Lidar 2017 Lidar data showing different point classifications https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1587496332012-41WD4I940KOGGU0J4L4V/1997_lidar_example.jpg Lidar Lidar Data from 1997 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1587496042595-9EVG2VA4GL8H2BN9LGS0/2017_lidar_example.jpg Lidar Lidar Data from 2017 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1587737313338-5VDL7MRQQP878543F7W9/lidar_profile.jpg Lidar Lidar profile (shown in yellow line in map view) of different classifications (not elevations) https://www.geosciconsultants.com/shorelineanalysis daily 0.75 2020-07-29 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1595883639920-IH6937550KH4L9LIICLD/May2020ShorelineZscores.jpg ShorelineAnalysis May 2020 high water line color-coded by change from the existing 20 year trends. Green areas are accreting at rates beyond the existing normal variance, red areas are eroding at rates outside of the normal variance. Light blue areas are changing within the normal variance of the shoreline. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1588790325311-VGRYJE5B57LVDO1L2YKH/interpolation_example.png ShorelineAnalysis Interpolation of shoreline positions through time https://www.geosciconsultants.com/slr_sullivans daily 0.75 2023-02-15 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1589384745534-6Y674NUDW1PKVEJ21NDX/1980-present_trend.jpg SLR_sullivans https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1589385888857-3HLF5O4X28ZMS5WF8XN2/all_slr_trends.jpg SLR_sullivans Charleston Harbor data (thicker red line) falls near the average of all the curves used in SLR studies up to about 2060 or so. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1589383397410-IB2MR59U9P5X8LYX3D9P/8665530_meantrend.png SLR_sullivans The iconic SLR trends in Charleston Harbor https://www.geosciconsultants.com/risk_development daily 0.75 2023-02-15 https://www.geosciconsultants.com/flood_risks_monthly daily 0.75 2023-02-02 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1589901249566-BHIXNKXVPPL6XR1CMQHM/nice_google_earth_example_2060_2.jpg Flood_risks_monthly This is a good image to contrast with the above one. In 2050the uncertainty is mainly from potential SLR scenarios. But note that the culverts next to the roads are generally wet at high tide. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1590600654752-RGTSHID3PMRNMSTY7DFT/risk_example_monthly2040.jpg Flood_risks_monthly This is what the model outputs look like for one year (2040 in this case). I have tried to keep it simple in the online map and choose one contour (25% risk contour) for each modeled year. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1589995171922-E72LUYTZY6LH3SKTPGOB/monthly_flooding.jpg Flood_risks_monthly Monthly average (per year) high water since 1980 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1589901120625-NAI9P10EIXHV5LQLE731/nice_google_earth_example_2020_2.jpg Flood_risks_monthly Present MHHW location. Red is pretty much always wet at high tide. Blue is probably dry, and green is a good indicator of the area covered at MHHW. In the present case, there are errors in the topographic surface (mainly from vegetation) that drive this ‘uncertainty’. https://www.geosciconsultants.com/hurricane-risks daily 0.75 2020-07-30 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1594061539536-AX51LZ8B5Y67CTQ9WLCR/2yearly_max_values.png Hurricane Risks Yearly maximum water levels since 1980. Note the outlier resulting from Hurricane Hugo, which would be about a 5% yearly risk at present (2020) based on the data used. https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1594133857486-DUROL7UON7OABXHSHB4K/FemaFloodZonesProposed.jpg Hurricane Risks FEMA’s proposed flood zones. Basically 99% of structures are in the flood zone on Sullivan’s Island https://www.geosciconsultants.com/marsh daily 0.75 2020-09-21 https://images.squarespace-cdn.com/content/v1/5376b392e4b0200433790bc8/1600700364747-MJWH7VGM25S1KEC7X73P/image-asset.jpeg Marsh SLAMM outputs for present (2017; left) and 2050 on the right