20250929
16503200
1.0
FGDC CSDGM Metadata
FALSE
VA_Combined_BankHeightSlope_2024_2026
0.000
284430.282400
478157.245400
4045343.903500
4307022.121800
1
002
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_UTM_Zone_18N
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.5.0'><WKT>PROJCS["NAD_1983_UTM_Zone_18N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-75.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26918]]</WKT><XOrigin>-5120900</XOrigin><YOrigin>-9998100</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>26918</WKID><LatestWKID>26918</LatestWKID></ProjectedCoordinateSystem>
20250929
15490400
20250929
16340000
ISO19115_3
150000000
5000
Shapefile
File Geodatabase Feature Class
https://www.vims.edu/ccrm/research/inventory/virginia/index.php
0.000
Virginia Shoreline Inventory: Bank Conditions, 2024 - 2026
2014-12-31T00:00:00
2022-01-13T00:00:00
Virginia Tidal Marsh Inventory
Center for Coastal Resources Management,
Virginia Institute of Marine Science, William & Mary, Gloucester Point, Virginia, 23062.
Center for Coastal Resources Management
Virginia Institute of Marine Science
Gloucester Point
Virginia
23062
US
https://www.vims.edu
Center for Coastal Resources Management, Virginia Institute of Marine Science (VIMS)
PO Box 1346
Gloucester Point
Virginia
23062
US
1375 Greate Road
804-684-7140
https://www.vims.edu/ccrm/
Jessica Hendricks
Jessica Hendricks
ground condition
2024-03-01T00:00:00
2024-09-17T00:00:00
Captures bank height category and slope for segments of the upland shoreline.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Virginia Shoreline Inventory is a series of reports and data that describe the condition of tidal shorelines for individual localities in the Commonwealth of Virginia. This inventory series started with historic reports produced in the 1970’s. It also includes contemporary digital inventory updates generated from 1998 to the present using a combination of Geographic Information Systems (GIS), Global Positioning System (GPS), and remote sensing technology.</SPAN></P></DIV></DIV></DIV>
Shoreline Inventory
Chesapeake Bay, Virginia, Gloucester, Hampton, Lancaster, Mathews, Middlesex, Northumberland, Poquoson, Virginia Beach, Westmoreland, York
Bank conditions, shoreline
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>These data should not be used for jurisdictional permit determinations beyond providing general shoreline condition or status information. These data have not been surveyed to property boundaries. The Center for Coastal Resources Management (CCRM) at VIMS performs a service by distributing data generated by either CCRM or public agencies which offer data without restriction or charge. CCRM assumes no responsibility for data accuracy or precision, metadata completeness or correctness for digital information. CCRM assumes no liability for misuse of any data which may arise as a result of any alteration, conversion, or combination with other data sources. As well, the timeliness and scale of these products must be considered when evaluating appropriate use. The contents of this dataset do not necessarily reflect the views and policies of VIMS-CCRM or the Virginia Department of Environmental Quality, Virginia Coastal Zone Management Program, nor do the agencies endorse trade names or recommend the use of commercial products mentioned in this document.</SPAN></P></DIV></DIV></DIV>
For more information please visit https://www.vims.edu/ccrm/research/inventory/index.php
Esri ArcGIS 13.5.3.57366
Karinna Nunez
Virginia Institute of Marine Science
P.O. Box 1346
Gloucester Poiint
Virginia
23062
karinna@vims.edu
US
(804) 684-7273
This project has been funded wholly or in part by The Virginia Department of Environmental Quality, Virginia Coastal Zone Management Program Grants # NA23NOS4190255 and # NA24NOSX419C0026.
Center for Coastal Resources Management
Virginia Institute of Marine Science
Gloucester Point
Virginia
23062
US
https://www.vims.edu
Center for Coastal Resources Management
All processing steps for the shoreline inventory were generated using ArcGIS Pro 3.1.3.
The first and second step in the QAQC process involves complete checks of shoreline coding by a GIS Programmer/Analyst and a Marine Scientist.
Tidal marshes observed in the field are the only polygons to be coded for marsh community type. Field collection of marsh data was performed primarily from a small shallow-draft vessel. Surveys extended as far upstream as depth and field conditions allowed. During surveys, marsh boundaries were verified, and wetland plant species observed within each marsh polygon were recorded along with relative cover estimates to determine marsh community types. Some marshes were surveyed by land.
Polygons do not self intersect. Topology has been validated. There are no overlapping polygons, however, there may be small gaps between polygons.
EPSG
6.11(3.0.1)
Virginia Bank Conditions
Feature Class
0
Virginia bank conditions
processor
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
Locality
NAME
String
254
0
0
County/City that the feature layer is located in.
CCRM/VIMS
Bank_Height_Cat
Bank_Height_Cat
String
512
0
0
For each 10-meter shoreline segment, the average minimum elevation at the bottom of the bank (e.g., the upland shoreline location) is subtracted from the average maximum elevation for the same segment. The difference between the maximum elevation and minimum elevation is the bank height. These are then classed into four categories: 0-5ft, 5-15ft, 15-30ft, and >30ft. Bank height is calculated using the Chesapeake Bay Topobathy LIDAR Digital Elevation Model (DEM).
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
0-5 feet
Bank height is 0-5 feet high
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
5-15 feet
Bank height is 5-15 feet high
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
15-30 feet
Bank height is 15-30 feet high
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
>30 feet
Bank height is >30 feet high
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Slope_Cat
Slope_Cat
String
512
0
0
Bank slope is calculated using the DEM and average and maximum bank slope categories are presented for sloping areas within a 100-ft buffer of the shoreline. Each shoreline segment is characterized into four categories: Flat (<5% / <2 .9 degrees slope), Low Slope (5-17.6% / 2.9 -10 degree slope), Moderate Slope (17.6% - 36% / 10-20 degree slope), Steep Slope (36-100% / 20 to 45 degree slope) and Very Steep Slope (>45 degrees). These categories are based on literature (Molino et al., 2021), and CCRM’s ShoreWatch App (in development).
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Flat
<5% / <2 .9 degrees slope
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Low Slope
5-17.6% / 2.9 -10 degree slope
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Moderate Slope
17.6% - 36% / 10-20 degree slope
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Steep Slope
36-100% / 20 to 45 degree slope
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
Very Steep Slope
>45 degrees
VIMS Shoreline & Tidal Marsh Inventory Glossary, Center for Coastal Resources Management
PubYear
PubYear
String
255
0
0
Year the dataset was published
CCRM VIMS
SlopeDescr
SlopeDescr
String
255
0
0
Description of the slope displayed in the Slope_Cat field.
CCRM VIMS
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
This layer describes the bank height and bank slope categories that characterizes each segment of upland shoreline within a locality. The attributes are explained in the Entity and Attribute Information section below. The PubYear field denotes the publication year of the county inventory. The jurisdiction is listed in the Locality field. Digital shoreline inventories began in 1998. Over the years, the methodology for collecting the data, as well as what data is collected has changed. For detailed information on a particular county, please visit the GIS Data and Maps: Shoreline Inventories web site at http://www.vims.edu/ccrm/research/inventory/virginia/index.php
Comprehensive Coastal Inventory Program, Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, Virginia, 23062.
dataset
0
Simple
FALSE
0
TRUE
TRUE
20250929
Center for Coastal Resources Management, Virginia Institute of Marine Science (VIMS)
PO Box 1346
Gloucester Point
Virginia
23062
US
1375 Greate Road
804-684-7140
https://www.vims.edu/ccrm/
Jessica Hendricks
Jessica Hendricks