Please note that this file is large, ~150 MB, and may take a substantial amount of time to download especially on slower internet connections.Shapefile (NJ State Plane NAD 1983) download: Click "Open" or Click hereThis data was created by combining two separate data sets, the land use/land cover layer from the Integrated Terrain Unit Maps (ITUM) for this county and the freshwater wetlands (FWW) layer generated under the New Jersey Freshwater Wetlands Mapping Program. The Arc/INFO LULC coverage has been converted to an ArcView shapefile for distribution. The ITUM land use/land cover was photo interpreted from 1986 color infrared (CIR) 1:58000 aerial photos, and delineated using a modified Anderson et al. 1976, classification system to 1:24000 rectified photo-basemaps. These basemaps complied with National Map Accuracy Standards (NMAS) as individual quadrangles but were not produced from a sophisticated aero-triangulation photogrammetric solution. Minimum mapping unit = 2.5 acres. The ITUM land use/land cover was integrated with three other sources (soils, USGS floodprone areas, and 1906 Atlas Sheet Geology) based on coincident features. The four data layers have subsequently been split out into four separate themes for distribution and use. Beginning in 1998, the NJDEP does not support the data as a single integrated ITUM theme but rather as four separate themes. Freshwater wetlands delineations were made on 1986 orthophoto quarterquad basemaps (1:12000) by photo interpretation of 1986 CIR photos. The classification system used was a modified Cowardin system (Cowardin, et al., 1979). All freshwater wetland polygons greater than 1 acre in area and all linear freshwater wetland features greater than 10 feet in width were mapped. The 1986 quarterquad basemaps meet NMAS and are orthophotos.

The Upper Wetlands Boundary/Upper Wetlands Limit data is composed of two wetlands limit lines mapped in two separate NJDEP mapping programs. Those arcs identified as the Upper Wetlands Boundary (UWB) were delineated under the Wetlands Act of 1970 (N.J.S.A. 13:9A-1 et seq). The intent of this act was to regulate development in tidal wetlands of the state. The initial task outlined in the legislation was to identify and map where those tidal wetlands existed in the state. The tidal wetlands delineations were based on the presence of 25 common tidal marsh species, as well as the extent of tidally flowed bare ground. Areas delineated in the original program extend from Trenton on the Delaware River, south around the Cape May Peninsula, and then north to Perth Amboy on the Arthur Kill. UWB delineations under this program were officially promulgated, and the original UWB arcs form a legal regulatory boundary line. While tidally influenced areas do exist north of Perth Amboy, these areas were not mapped in this program due to funding constraints. In 1987, New Jersey passed the Freshwater Wetlands Protection Act (N.J.S.A. 13:9B-1). As part of the requirements of that act, the NJDEP was required to map all non-tidal wetlands of the state, as they existed on 1986 photo basemaps in a separate freshwater wetlands (FWW) mapping program. As tidal areas of the state were already under tidal wetlands regulations, they were to be excluded from the FWW regulations and from the FWW mapping program. Since the UWB, where it existed, was the regulatory boundary for the tidal wetlands program, it was incorporated into the FWW maps to identify the lower, or seaward, limit of the areas under FWW jurisdiction and mapping. All areas below the UWB were excluded from the FWW program; all areas above the UWB were to be mapped. Where the UWB had not been delineated, a functionally similar line was delineated from the 1986 products used in the FWW mapping to separate tidal from non-tidal areas. As with the UWB, areas below, or seawards, of this line were not mapped under the FWW program. However, since this new line was not delineated through the same procedures as the original UWB, and is not a promulgated regulatory line, it is not to be considered analogous to the UWB. To distinguish this new line from the original UWB, it has been given a new name, the Upper Wetlands Limit (UWL). The data layer also includes another type of coded line. To clarify the UWB delineation along the Atlantic coast barrier island area, the land/water interface as delineated in a 1986 land use/ land cover mapping project was also included. These arcs are identified as COASTLINE in the data set. These arcs do represent any delineations based on vegetation or other parameters associated with the UWB or UWL. Both of these lines were digitized as part of the FWW mapping program, and the UWB/UWL data layer has been extracted from the FWW maps, as described in the Process Steps.

Geospatial data about Somerset County, New Jersey Wetlands. Export to CAD, GIS, PDF, CSV and access via API.

This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the conterminous United States. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979).

Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery.

By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps.

This data is hosted at, and may be downloaded or accessed from PASDA, the Pennsylvania Spatial Data Access Geospatial Data Clearinghouse http://www.pasda.psu.edu/uci/DataSummary.aspx?dataset=1455

The wetlands polygons included in this data set are extracted from the Land Use 2007 layer. Displayed are all polygons that have a TYPE07 code of 'WETLANDS'. While these wetland delineations are not regulatory lines, they represent important resource data in identifying potential wetland areas. The 2007 LU/LC data set is the fourth in a series of land use mapping efforts that was begun in 1986. Revisions and additions to the initial baseline layer were done in subsequent years from imagery captured in 1995/97, 2002 and 2007. This present 2007 update was created by comparing the 2002 LU/LC layer from NJ DEP's Geographical Information Systems (GIS) database to 2007 color infrared (CIR) imagery and delineating and coding areas of change. Work for this data set was done by Aerial Information Systems, Inc., Redlands, CA, under direction of the New Jersey Department of Environmental Protection (NJDEP), Bureau of Geographic Information System (BGIS). LU/LC changes were captured by adding new line work and attribute data for the 2007 land use directly to the base data layer. All 2002 LU/LC polygons and attribute fields remain in this data set, so change analysis for the period 2002-2007 can be undertaken from this one layer. The classification system used was a modified Anderson et al., classification system. An impervious surface (IS) code was also assigned to each LU/LC polygon based on the percentage of impervious surface within each polygon as of 2007. Minimum mapping unit (MMU) is 1 acre. ADVISORY: This metadata file contains information for the 2007Land Use/Land Cover (LU/LC) data sets, which were mapped by Watershed Management Area (WMA). There are additional reference documents listed in this file under Supplemental Information which should also be examined by users of these data sets. As stated in this metadata record's Use Constraints section, NJDEP makes no representations of any kind, including, but not limited to, the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the digital data layers furnished hereunder. NJDEP assumes no responsibility to maintain them in any manner or form. By downloading this data, user agrees to the data use constraints listed within this metadata record.

Hurricane Sandy, which made landfall on October 29, 2012, near Brigantine, New Jersey, had a significant impact on coastal New Jersey, including the large areas of emergent wetlands at Edwin B. Forsythe National Wildlife Refuge (NWR) and the Barnegat Bay region. In response to Hurricane Sandy, U.S. Geological Survey (USGS) has undertaken several projects to assess the impacts of the storm and provide data and scientific analysis to support recovery and restoration efforts. As part of these efforts, the USGS Coastal and Marine Geology Program (CMGP) sponsored Coastal National Elevation Database (CoNED) Applications Project in collaboration with the USGS National Geospatial Program (NGP), and National Oceanic and Atmospheric Administration (NOAA) developed a three-dimensional (3D) 1-meter topobathymetric elevation models (TBDEMs) for the New Jersey/Delaware sub-region including the Delaware Estuary and adjacent coastline. The integrated elevation data are extending the USGS 3D Elevation Program (3DEP) Elevation Dataset within the Hurricane Sandy impact zone to enable the widespread creation of flood, hurricane, and sea-level rise inundation hazard maps. More information on the USGS CoNED project is available at http://topotools.cr.usgs.gov/coned/index.php. The CoNED Applications Project team is also developing new applications for pre- and post-Hurricane Sandy regional lidar datasets for mapping the spatial extent of coastal wetlands. These new methods have been developed to derive detailed land/water polygons for an area in coastal New Jersey, which is dominated by a complex configuration of emergent wetlands and open water. Using pre- and post-Hurricane Sandy lidar data, repeatable geospatial methods were used to map the land/water spatial configuration at a regional scale to complement wetland mapping that uses traditional methods such as photointerpretation and image classification.

New_Jersey_1971_78_Digitized_Shoreline.zip features a digitized historic shoreline for the New Jersey coastline (Point Pleasant, NJ to Longport, NJ) from 1971 to 1978. Imagery of the New Jersey coastline was acquired from the New Jersey Geographic Information Network (NJGIN) as two images: “1970 NJDEP Wetlands Basemap” (1971-78) and the “1977 Tidelands Basemaps” (1977-78). These images are available as a web mapping service (WMS) through the NJGIN website (https://njgin.state.nj.us/NJ_NJGINExplorer/jviewer.jsp?pg=wms_instruct). To reduce digitizing error, the imagery was acquired on a hard drive from the NJGIN via personal communication. Using ArcMap 10.3.1, the "1970 NJDEP Wetlands Basemap" was used to delineate and digitize historical foreshore, backshore, mainland, and island shoreline positions, with the “1977 Tidelands Basemaps” being used to fill in missing shorelines and clarify areas of uncertainty from the 1970s imagery. These shorelines were digitized for use in long-term shoreline and wetland analyses for Hurricane Sandy wetland physical change assessment.

Self Service Web Map used in Self Service Mapping Application to make maps with Open Data layers.

description: Hurricane Sandy directly hit the Atlantic shoreline of New Jersey during several astronomical high tide cycles in late October, 2012. The eastern seaboard areas are subject to sea level rise and increased severity and frequency of storm events, prompting habitat and land use planning changes. Wetland Aquatic Research Center (WARC) has conducted detailed mapping of marine and estuarine wetlands and deepwater habitats, including beaches and tide flats, and upland land use/land cover, using specially-acquired aerial imagery flown at 1-meter resolution.These efforts will assist the U.S. Fish and Wildlife Service (USFWS) continuing endeavors to map the barrier islands adhering to Coastal Barrier Resources Act (CBRA) guidelines. Mapped areas consist of selected federal lands including, National Park Service areas, USFWS National Wildlife Refuges, and selected CBRA Units, including barrier islands and marshes in New York and New Jersey. These vital wetland areas are important for migratory waterfowl and neotropical bird habitats, wildlife food chain support and nurseries for shellfish and finfish populations. Coastal wetlands also play an important function as storm surge buffers. This project includes mapping of dominant estuarine wetland plant species useful for wetland functional analysis and wildlife evaluation and management concerns. It also aims to integrate with and offer updated databases pertinent to: USFWS NWR and NWI programs, NOAA tide flats and beaches data, FEMA flood zone data, Natural Heritage Endangered and Threated Species, watershed management, and state and local land use planning.; abstract: Hurricane Sandy directly hit the Atlantic shoreline of New Jersey during several astronomical high tide cycles in late October, 2012. The eastern seaboard areas are subject to sea level rise and increased severity and frequency of storm events, prompting habitat and land use planning changes. Wetland Aquatic Research Center (WARC) has conducted detailed mapping of marine and estuarine wetlands and deepwater habitats, including beaches and tide flats, and upland land use/land cover, using specially-acquired aerial imagery flown at 1-meter resolution.These efforts will assist the U.S. Fish and Wildlife Service (USFWS) continuing endeavors to map the barrier islands adhering to Coastal Barrier Resources Act (CBRA) guidelines. Mapped areas consist of selected federal lands including, National Park Service areas, USFWS National Wildlife Refuges, and selected CBRA Units, including barrier islands and marshes in New York and New Jersey. These vital wetland areas are important for migratory waterfowl and neotropical bird habitats, wildlife food chain support and nurseries for shellfish and finfish populations. Coastal wetlands also play an important function as storm surge buffers. This project includes mapping of dominant estuarine wetland plant species useful for wetland functional analysis and wildlife evaluation and management concerns. It also aims to integrate with and offer updated databases pertinent to: USFWS NWR and NWI programs, NOAA tide flats and beaches data, FEMA flood zone data, Natural Heritage Endangered and Threated Species, watershed management, and state and local land use planning.

Data input files for the paper by EA Ury et al. Managing the global wetland methane-climate feedback: A review of potential options (2024) Global Change BiologyWetland methane emissions from Zhang et al. (2017) and global sulfate deposition map from Rubin et al (2023) were shared with permission from the authors. Historical climate data from WorldClim 2.1 is available from: https://www.worldclim.org/data/worldclim21.html (Fick and Hijmans 2017). Future climate data is available from the World Climate Research Program through its Working Group on Coupled Modelling at https://www.worldclim.org/data/cmip6/cmip6climate.html (Eyring et al. 2016). Klöppen-Geiger climate zone maps is available on Figshare at https://doi.org/10.6084/m9.figshare.c.6395666.v1 (Beck et al. 2023a-b) The global wetland map is available from https://zenodo.org/records/7293597 (Fluet-Chouinard et al. 2022, 2023).CitationsBeck, H.E., McVicar, T.R., Vergopolan, N., Berg, A., Lutsko, N. J., Dufour, A., Zeng, Z., Jiang, X., van Dijk, A. I. J. M., & Miralles, D. G. (2023a). High-resolution (1 km) Köppen-Geiger maps for 1901-2099 based on constrained CMIP6 projections. Scientific Data, 10(1), 724. https://doi.org/10.1038/s41597-023-02549-6Beck, H.E., McVicar, T.R., Vergopolan, N., Berg, A., Lutsko, N. J., Dufour, A., Zeng, Z., Jiang, X., van Dijk, A. I. J. M., & Miralles, D. G. (2023b) High-resolution (1 km) Köppen-Geiger maps for 1901–2099 based on constrained CMIP6 projections. Figshare. Collection https://doi.org/10.6084/m9.figshare.c.6395666.v1Eyring, V., Bony, S., Meehl, G.A., Senior, C.A., Stevens, B., Stouffer, R.J., & Taylor, K.E. (2016) Geoscientific Model Development, 9, 1937–1958, https://doi.org/10.5194/gmd-9-1937-2016Fick, S.E. & Hijmans, R.J. (2017). WorldClim 2: new 1‐km spatial resolution climate surfaces for global land areas. International Journal of Climatology, 37(12), 4302-4315. https://doi.org/10.1002/joc.5086Fluet-Chouinard, E., Stocker, B.D., Zhang, Z., Malhotra, A., Melton, J.R., Poulter, B., … McIntyre, P.B. G. (2022). Global wetland loss reconstruction over 1700-2020. Zenodo. https://doi.org/10.5281/zenodo.7293597Fluet-Chouinard, E., Stocker, B.D., Zhang, Z., Malhotra, A., Melton, J.R., Poulter, B., Kaplan, J.O., Goldewijk, K.K., Siebert, S., Minayeva, T. & Hugelius, G. (2023). Extensive global wetland loss over the past three centuries. Nature, 614(7947), 281-286. https://doi.org/10.1038/s41586-022-05572-6Rubin, H.J., Fu J.S., Dentener, F., Li, R., Huang, K. & Fu, H. (2023). Global nitrogen and sulfur deposition mapping using a measurement–model fusion approach. Atmospheric Chemistry and Physics, 23(12), 7091–7102. https://doi.org/10.5194/acp-23-7091-2023Zhang, Z., Zimmermann, N.E., Stenke, A., Li, X., Hodson, E.L., Zhu, G., … Poulter, B. (2017). Emerging role of wetland methane emissions in driving 21st century climate change. Proceedings of the National Academy of Sciences of the United States of America, 114(36), 9647–9652. https://doi.org/10.1073/pnas.1618765114

Hurricane Sandy directly hit the Atlantic shoreline of New Jersey during several astronomical high tide cycles in late October, 2012. The eastern seaboard areas are subject to sea level rise and increased severity and frequency of storm events, prompting habitat and land use planning changes. Wetland Aquatic Research Center (WARC) has conducted detailed mapping of marine and estuarine wetlands and deepwater habitats, including beaches and tide flats, and upland land use/land cover, using specially-acquired aerial imagery flown at 1-meter resolution.These efforts will assist the U.S. Fish and Wildlife Service (USFWS) continuing endeavors to map the barrier islands adhering to Coastal Barrier Resources Act (CBRA) guidelines. Mapped areas consist of selected federal lands including, National Park Service areas, USFWS National Wildlife Refuges, and selected CBRA Units, including barrier islands and marshes in New York and New Jersey. These vital wetland areas are important for migratory waterfowl and neotropical bird habitats, wildlife food chain support and nurseries for shellfish and finfish populations. Coastal wetlands also play an important function as storm surge buffers. This project includes mapping of dominant estuarine wetland plant species useful for wetland functional analysis and wildlife evaluation and management concerns. It also aims to integrate with and offer updated databases pertinent to: USFWS NWR and NWI programs, NOAA tide flats and beaches data, FEMA flood zone data, Natural Heritage Endangered and Threated Species, watershed management, and state and local land use planning.

The Philadelphia, PA Meter-Scale Urban Land Cover (MULC) dataset comprises 7184 km2 around the city of Philadelphia and surrounding land in parts of fourteen counties within four states (PA, DE, NJ, MD): New Castle County in Delaware and Cecil County Maryland; Bucks, Chester, Lancaster, Montgomery, Philadelphia, and Delaware Counties in Pennsylvania; and Burlington, Mercer, Camden, Gloucester, Salmen and Atlantic Counties in New Jersey. These MULC data and maps were derived from several sources from multiple years: leaf-off LiDAR; 1-m pixel, four-band (red, green, blue, and near-infrared) leaf-on aerial photography acquired from the United States Department of Agriculture (USDA) National Agriculture Imagery Program (NAIP); 1-ft pixel orthoimagery; additional leaf-on and leaf-off imagery as well as ancillary vector data (e.g., roads, building footprints.). Ten land cover classes were mapped: Water, Impervious Surfaces, Soil/Barren, Tree/Forested, Shrub, Grass/Herbaceous NonWoody Vegetation, Agriculture, Orchard, and Wetlands (Woody and Emergent). Wetlands were delineated using the best available existing wetlands data, which was a National Wetlands Inventory (NWI) layer. An analysis of 600 completely random and 251 stratified random photo-interpreted land cover reference points yielded a simple overall user's accuracy (MAX) of 78% and an overall fuzzy user's accuracy (RIGHT) of 86% (see confusion matrices below). This dataset was produced by the University of Vermont Spatial Analysis Laboratory, the United States Forest Service Urban Tree Canopy (UTC) assessment program, and the US EPA to support research and online mapping activities related to the EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets).

Hurricane Sandy directly hit the Atlantic shoreline of New Jersey during several astronomical high tide cycles in late October, 2012. The eastern seaboard areas are subject to sea level rise and increased severity and frequency of storm events, prompting habitat and land use planning changes. Wetland Aquatic Research Center (WARC) has conducted detailed mapping of marine and estuarine wetlands and deepwater habitats, including beaches and tide flats, and upland land use/land cover, using specially-acquired aerial imagery flown at 1-meter resolution.These efforts will assist the U.S. Fish and Wildlife Service (USFWS) continuing endeavors to map the barrier islands adhering to Coastal Barrier Resources Act (CBRA) guidelines. Mapped areas consist of selected federal lands including, National Park Service areas, USFWS National Wildlife Refuges, and selected CBRA Units, including barrier islands and marshes in New York and New Jersey. These vital wetland areas are important ...

Descriptive information about each surface elevation table (SET), including data owner, installation info, coordinates, surveyed relative elevations, and other notes. These are important secondary data that support the data layer “Surface Elevation Table Data”.

This data represents the tidal wetland vegetation types delineated on the 1970 Wetlands Basemaps. The wetlands depicted are below the Revised Upper (Inland) Wetlands Boundary. Each wetland type has its own letter, number or combination letter/number code hand drawn within a vegetation type boundary on scanned photograph geotiffs. There are 953 geotiffs which are indexed and correspond to the Riparian Tidelands Grid. Other non-vegetated codes, such as Water or Beach are included but are not part of the original code document of report. All digitizing has been heads-up over the basemaps in inventory and may omit areas indiscernible. The collection is incomplete.

This application allows a user to do a thorough search of the regulatory jurisdictions and environmental conditions that can affect the use or development of a property. Such conditions as wetlands, threatened and endangered species, flood hazard areas, and special development areas such as the New Jersey Pinelands area and Highlands area, can impact what development or redevelopment can occur in certain areas. there are also select years of aerial imagery that correspond to specific program regulation milestones, including the 1970 imagery for wetlands determination, and 1977 for the Tidelands Program.

The information provided in this map application can help a property owner determine what permits may be required prior to starting a Land Use application.

This application uses publicly available Geographic Information System data from the New Jersey Department of Environmental Protection, the New Jersey Office of Information Technology, the Federal Emergency Management Agency, and ESRI.

This is the primary website for the New Jersey Tidal Wetland Monitoring Network (NJTWMN). The NJTWMN is a collection of more than 15 research organizations, universities, and non-profits, including NJDEP which was a founding member. The main mission of the NJTWMN is to identify the current conditions and trends of tidal wetlands in New Jersey to improve resilience of coastal communities and ecosystems by providing data to prioritize restoration efforts and support informed management decisions.This website is designed to share information about wetland monitoring in New Jersey with researcher, managers, and other interested stakeholders. This main page is primarily intended to provide background information about the NJTWMN, summarize the long-term monitoring data in an embedded map application, and detail the methodology and best practices used by network members.These monitoring efforts are aimed at answering the question “is marsh elevation keeping pace with sea-level rise?”. To help answer this question, we used long-term monitoring datasets to estimate elevation change rates at Surface Elevation Table (SET) stations throughout the state. Then, we compared these elevation rates to the sea-level rise (SLR) rates at the nearest NOAA National Water Level Observation Network (NWLON) station. Long-term SLR rates were estimated using the full NWLON station dataset whereas short-term SLR rates were estimated from the 19-years of NWLON data preceding the most recent SET measurement.Additional wetland metrics including vertical accretion rates, shallow subsidence, and vegetation are also available on the map.

Self Service Mapping Application created for public use. The users of this map can turn layers on and off, query features by Municipality, and print out a map of their identified location with or without an aerial image.

The E-LOI dataset is a composite of boundaries for wetlands and transition areas associated with Freshwater Wetland Letter of Interpretation (LOI) applications submitted to the New Jersey Department of Environmental Protection’s Division of Land Resource Protection (NJDEP LRP) within the Watershed and Land Management Program (WLM). This group of layers contains site boundaries, footprint of disturbance boundaries, wetland boundaries and transition area boundaries. These layers contain information on the name and license number of the surveyor, accuracy of the data, type of LOI application, NJDEP File number and dates or status associated to the application.

In New Jersey, the Legislature decided to incorporate the EPA Priority Wetland List into the Freshwater Wetlands Protection Act and Rules to ensure that the State program complied and is consistent with the federal program. As a result, the New Jersey Freshwater Wetlands Act prohibited the use of certain general permits within areas on this list. Wetlands are identified as EPA priority based on the following factors: 1. Unique habitat for fauna of flora; 2. Unusual or regionally rare wetland types; 3. Ecologically important and under threat of development; 4. Important to surface water systems; 5. critical to protect water supplies; and 6. Valuable for and provide flood "storage capacity. All priority areas are listed by specific geographic area. Specific geographic areas include particular wetland areas with a defined geographic boundary (e.g., Great Piece Meadows) or a particular wetland system with defined boundaries (e.g., wetlands of the Passaic River Basin). Note on dates: Original 1989; Updated 03/1994; Digitized 01/01/2014 to 06/01/2014