20240604
13570500
1.0
FALSE
ENV_Migration_4ft_SLR
002
-8435890.037539
-8353990.037539
4643323.989262
4838193.989262
1
Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
WGS_1984_Web_Mercator_Auxiliary_Sphere
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20250523
13580300
20250523
13580300
150000000
5000
FGDC
Esri ArcGIS 13.3.4.52636
ENV_Migration_4ft_SLR
2025-02-13T00:00:00
DNREC, Wetland Monitoring and Assessment Program & Delaware Coastal Programs
Dover
DE
19904
302-739-9169
DNREC, Wetland Monitoring and Assessment Program & Delaware Coastal Programs
external
bfd6b84d3251a8f2ff48b1cfd3302a9f1c66797a
FirstMap
State of Delaware
801 Silver Lake Blvd.
Dover
DE
19904
302-739-9500
True
FirstMap
1
-75.780890
-75.045169
39.808783
38.450927
Analysis completed in January 2025
2025-01-27T00:00:00
This study aimed to inform state land management by conducting a suitability analysis on land in Delaware that may have the potential for future marsh migration under sea level rise. This was achieved through a simplistic model in Arc GIS combining the Delaware 2 ft., 4 ft. and 7 ft. SLR scenarios, soil, slope, land use/land cover (LULC), and distance to current tidal wetlands. The result is a layer for each SLR scenario showing the possible suitability of land for future marsh migration.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This study aimed to inform state land management by conducting a suitability analysis on land in Delaware that may have the potential for future marsh migration under different sea level rise scenarios. This study was conducted through a simplistic elevation-based GIS model that incorporated elevation, the Delaware 2 ft, 4 ft, and 7 ft SLR scenarios, soil, slope, land use/land cover (LULC), and distance to tidal wetlands. The model excluded areas of impervious surface, incompatible LULC, open water, as well as the current extent of tidal wetland areas. This model did not incorporate data on accretion, erosion, or hydrodynamic water flow. The final layer includes five categories: areas receiving a score of zero are existing tidal wetlands or open water for marsh migration, scores between one and three are least suitable for migration, four to six are less suitable, seven to nine are suitable, and ten to twelve are highly suitable. </SPAN></P></DIV></DIV></DIV>
Wetland; Marsh Migration Suitability Analysis; Delaware; 4 foot sea level rise
DNREC, Wetland Monitoring and Assessment Program & Delaware Coastal Programs
Dover
DE
19904
302-739-9169
DNREC, Wetland Monitoring and Assessment Program & Delaware Coastal Programs
DNREC, Wetland Monitoring and Assessment Program & Delaware Coastal Programs
external
bfd6b84d3251a8f2ff48b1cfd3302a9f1c66797a
FirstMap
State of Delaware
801 Silver Lake Blvd.
Dover
DE
19904
302-739-9500
True
FirstMap
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>The State of Delaware makes no warranty or representation, expressed or implied, with respect to the quality, content, accuracy, completeness, currency, or non-infringement of proprietary rights, of any of the GIS or other data or information, or any other materials and items, that are displayed or made available for download from this site. FirstMap Data may have been created from a variety of sources, including sources beyond the control of the State of Delaware, and are subject to change without notice. To the extent you use, apply, add to, modify or implement this information in your own information system or other setting, or otherwise for your own purposes, you do so at your own risk. </SPAN></P></DIV></DIV>
Enterprise Geodatabase Raster Dataset
dataset
EPSG
6.18.3(9.3.1.2)
Pixel
19487
8190
10.000000
10.000000
8
1
Upper Left
FALSE
LZ77
1
pixel codes
SDR
TRUE
row and column
10.000000
10.000000
SDE_VAT_37
Table
13
DNREC
DNREC
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Value
VALUE
Integer
4
10
0
Value: Model output score
Suitability: Grouped model output scores into 5 categories
Current Tidal Wetland/Water
Least Suitable
Less Suitable
Suitable
Highly Suitable
DNREC
Value: Model output score
Suitability: Grouped model output scores into 5 categories
Count
COUNT
Double
8
38
8
Count of features
Calculated
Count of features
SUITABILITY
SUITABILITY
String
255
0
0
20250127
external
bfd6b84d3251a8f2ff48b1cfd3302a9f1c66797a
FirstMap
State of Delaware
801 Silver Lake Blvd.
Dover
DE
19904
302-739-9500
True
FirstMap
DNREC, Wetland Monitoring and Assessment Program & Delaware Coastal Programs
Dover
DE
19904
302-739-9169
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The State of Delaware makes no warranty or representation, expressed or implied, with respect to the quality, content, accuracy, completeness, currency, or non-infringement of proprietary rights, of any of the GIS or other data or information, or any other materials and items, that are displayed or made available for download from this site. FirstMap Data may have been created from a variety of sources, including sources beyond the control of the State of Delaware, and are subject to change without notice. To the extent you use, apply, add to, modify or implement this information in your own information system or other setting, or otherwise for your own purposes, you do so at your own risk. </SPAN></P></DIV></DIV></DIV>
This study aimed to inform state land management by conducting a suitability analysis on land in Delaware that may have the potential for future marsh migration under different sea level rise scenarios. This study was conducted through a simplistic elevation-based GIS model that incorporated elevation, the Delaware 2 ft, 4 ft, and 7 ft SLR scenarios, soil, slope, land use/land cover (LULC), and distance to tidal wetlands. The model excluded areas of impervious surface, incompatible LULC, open water, as well as the current extent of tidal wetland areas. This model did not incorporate data on accretion, erosion, or hydrodynamic water flow. The final layer includes five categories: areas receiving a score of zero are existing tidal wetlands or open water for marsh migration, scores between one and three are least suitable for migration, four to six are less suitable, seven to nine are suitable, and ten to twelve are highly suitable.
This study aimed to inform state land management by conducting a suitability analysis on land in Delaware that may have the potential for future marsh migration under different sea level rise scenarios. This study was conducted through a simplistic elevation-based GIS model that incorporated elevation, the Delaware 2 ft, 4 ft, and 7 ft SLR scenarios, soil, slope, land use/land cover (LULC), and distance to tidal wetlands. The model excluded areas of impervious surface, incompatible LULC, open water, as well as the current extent of tidal wetland areas. This model did not incorporate data on accretion, erosion, or hydrodynamic water flow. The final layer includes five categories: areas receiving a score of zero are existing tidal wetlands or open water for marsh migration, scores between one and three are least suitable for migration, four to six are less suitable, seven to nine are suitable, and ten to twelve are highly suitable.
2025-01-27T00:00:00
DNREC