Skip to main content

Elevation of marsh units in Blackwater salt marsh complex, Chesapeake Bay, Maryland

Dates

Publication Date

Citation

Ackerman, K.V., Defne, Z., and Ganju, N.K., 2021, Coastal wetlands of the Blackwater region, Chesapeake Bay, Maryland: U.S. Geological Survey data release, https://doi.org/10.5066/P9M7H6XG.

Summary

This data release contains coastal wetland synthesis products for the geographic region of Blackwater salt marsh complex, Chesapeake Bay, Maryland. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and others, are calculated for smaller units delineated from a digital elevation model, providing the spatial variability of physical factors that influence wetland health. The U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing Federal, State, and local managers with tools to estimate the vulnerability and ecosystem service potential of these wetlands. For this purpose, the response and resilience [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

Elev_BW_Browse.png
“Elevation of marsh units overlaying Esri basemap”
thumbnail 1.22 MB image/png
Shapefile: mu_Elev_BW.zip
mu_Elev_BW.CPG 5 Bytes
mu_Elev_BW.dbf 1.22 MB
mu_Elev_BW.prj 425 Bytes
mu_Elev_BW.sbn 89.4 KB
mu_Elev_BW.sbx 7.32 KB
mu_Elev_BW.shp 64.47 MB
mu_Elev_BW.shx 66.64 KB
mu_Elev_BW.sld 7.76 KB

Purpose

The purpose of this shapefile is to calculate the mean elevation for each marsh unit and its vegetated component. Analysis of marsh elevation is part of a comprehensive assessment to identify the factors and their weights in determining the vulnerability and resiliency of salt marshes. Elevation distribution in the Blackwater salt marsh complex is given in terms of mean elevation of conceptual marsh units. The elevation data is based on the 1-meter resolution Coastal National Elevation Database (CoNED).

Additional Information

Shapefile Extension

boundingBox
minY38.21753004799907
minX-76.3333138828322
maxY38.50527336120423
maxX-75.68120287439426
files
namemu_Elev_BW.CPG
contentTypetext/plain
pathOnDisk__disk__e4/fc/17/e4fc17e7206c472b87b5299aa9879fa7746e271c
size5
dateUploadedFri Apr 30 10:20:42 MDT 2021
namemu_Elev_BW.dbf
contentTypetext/plain
pathOnDisk__disk__b0/10/39/b0103908cbdf55c8cfcccf7ed0e703b272d4aa17
size1278054
dateUploadedFri Apr 30 10:20:42 MDT 2021
namemu_Elev_BW.prj
contentTypetext/plain
pathOnDisk__disk__8c/5d/ad/8c5dad3ddd9c373f58d9f1915ec3119a58819988
size425
dateUploadedFri Apr 30 10:20:42 MDT 2021
namemu_Elev_BW.sbn
contentTypex-gis/x-shapefile
pathOnDisk__disk__af/bc/15/afbc154e631f307a54502c6865d2b16e09a95d8b
size91548
dateUploadedFri Apr 30 10:20:42 MDT 2021
namemu_Elev_BW.sbx
contentTypex-gis/x-shapefile
pathOnDisk__disk__2f/de/90/2fde90fa8e4266980cf71ce0084dc49dc92c5298
size7492
dateUploadedFri Apr 30 10:20:42 MDT 2021
namemu_Elev_BW.shp
contentTypex-gis/x-shapefile
pathOnDisk__disk__1a/8b/7d/1a8b7d92397467a85c6fd27b2d8977c8b08f906a
size67602912
dateUploadedFri Apr 30 10:20:42 MDT 2021
namemu_Elev_BW.shx
contentTypex-gis/x-shapefile
pathOnDisk__disk__91/78/69/9178690485f33925f6b4ca0590a9fabcfd7c09dc
size68244
dateUploadedFri Apr 30 10:20:42 MDT 2021
namemu_Elev_BW.sld
contentTypeapplication/sld+xml
pathOnDisk__disk__d7/cf/9b/d7cf9b6ae5d2287098a2941cfe9200dfebd22e8f
size7943
dateUploadedMon May 03 15:06:17 MDT 2021
checksum
value36e6cb31a57f7c655209016e0ffe4718
typeMD5
geometryTypeMultiPolygon
namemu_Elev_BW

Item Actions

View Item as ...

Save Item as ...

View Item...