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MD iMAP: Maryland Shoreline Changes - Transects
opendata.maryland.gov | Last Updated 2020-01-25T00:14:41.000ZThis is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. To quantify rates of change (erosion or accretion) along coastal and estuarine shorelines in Maryland - the Maryland Geological Survey (MGS) - in conjunction with Towson University's Center for Geographic Information Sciences (CGIS) and the U.S. Geological Survey (USGS) - installed and ran a computer program - the Digital Shoreline Analysis System (DSAS) - using as input a series of digital shoreline vectors dating from 1841-1995. Shorelines were derived from three sources: (1) maps from a Historical Shorelines and Erosion Rates Atlas (Conkwright - 1975) - (2) Coastal Survey maps (topographic or T-sheets) produced by the National Ocean Service (NOS) - a branch of the National Oceanic and Atmospheric Administration (NOAA) - and (3) a digital wetlands delineation based on photo interpretation of digital orthophoto quarter quads. DSAS constructed a 'baseline' landward of and approximately parallel to the shorelines - inserted nodes every 20 m along the baseline - and cast straight-line transects from each node - perpendicular to the baseline - across the shorelines. Based on the time elapsed and the along-transect distance between shoreline pairs - DSAS calculated rates of change for each transect. Last Updated: Feature Service Layer Link: http://geodata.md.gov/imap/rest/services/Hydrology/MD_ShorelineChanges/MapServer/0 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.
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MD iMAP: Maryland Licensed Animal Plant Facilities - Animal Control Facilities
opendata.maryland.gov | Last Updated 2020-01-25T00:30:02.000ZThis is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. Point layer of animal control facilities licensed by the Maryland Department of Agriculture (MDA).Last Update: 2012Feature Service Link:http://geodata.md.gov/imap/rest/services/Agriculture/MD_LicensedAnimalPlantFacilities/FeatureServer/1 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.
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MD iMAP: Maryland Marine Boundaries - Shoreline
opendata.maryland.gov | Last Updated 2020-01-25T00:14:01.000ZThis is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. In 2000 - the Maryland Geological Survey (MGS) was awarded a Coastal ZoneManagement grant to complete the acquisition of a recent (ca. 1990) digital shoreline for the coastal regions of Maryland - the Chesapeake Bay - its tributaries - the coastal bays - and the Atlantic coast.MGS contracted the services of EarthData International - Inc. (EDI) of Gaithersburg - Md. - to extract shorelines from an existing wetlands delineation - which was based on photo interpretation of 3.75-minute digital orthophoto quarter quads (DOQQs). In areas where a wetlands coverage was not yet available - EDI interpreted shorelines directly from the orthophotography. DOQQ registration (Maryland State Plane Coordinate System - NAD 83 - meters) was transferred automatically to the shoreline vectors. Following shoreline extraction or interpretation - EDI assigned attributes to the vectors based on shoreline type: beach - vegetated - structure - or water's edge. This data set has been merged into a state wide file for ease of processing and decision making.Feature Service Link:http://geodata.md.gov/imap/rest/services/Boundaries/MD_MarineBoundaries/FeatureServer/0 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.
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MD iMAP: Maryland Finfish - Fishing Grounds
opendata.maryland.gov | Last Updated 2020-01-25T00:31:36.000ZThis is a MD iMAP hosted service. Find more information at http://imap.maryland.gov. Dataset shows popular recreational fishing spots in the Maryland portion of the Chesapeake Bay. Fishing areas were derived from the publication Anglers' Guide to the United States Atlantic Coast - Fish - Fishing Grounds & Fishing Facilities""and from personal communication with Keith Lockwood - MDNR - Fisheries Service in June 2000.Last Update: 05/2014Feature Service Link:http://geodata.md.gov/imap/rest/services/Biota/MD_Finfish/FeatureServer/10 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively the ""Data"") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.
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MD iMAP: Maryland Offshore Wind Energy Planning - Waterbird Habitat and Density
opendata.maryland.gov | Last Updated 2020-01-25T00:23:31.000ZThis is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This data layer contains waterbird density blocks extracted from the Minerals Management Service's Mid-Atlantic Waterbird Data Beta Version 1.0. This application is based on their Marine Mammal and Seabird Computer Database Analysis System (MMS-CDAS). The origin of the underlying data is a U.S. Fish & Wildlife Service aerial survey conducted between December - 2001 and March - 2003. The source data were collected on-transect (120m width - 60 m each side) for transects conducted in the mouth of Chesapeake Bay - in Delaware Bay - and in offshore waters from the beach outward. Aerial surveys of waterbirds were flown to at least 12 nautical miles (22.2 km) offshore from northern New Jersey to the Virginia / North Carolina border. All waterbird species in the USFWS database from winter surveys only were exported to density blocks. Information in the MMS application suggests the winter surveys only are valid for calculating densities because they were flown on specific transects. The spatial extent of the database (and thus of this data set) is from the Virginia/North Carolina border to the Hudson Canyon (including Delaware Bay and the lowest part of Chesapeake Bay). Last Updated: Feature Service Layer Link: http://geodata.md.gov/imap/rest/services/UtilityTelecom/MD_OffshoreWindEnergyPlanning/FeatureServer/3 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.
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Total Acres Preserved in Maryland Counties by Program
opendata.maryland.gov | Last Updated 2024-02-29T15:09:22.000ZLand preservation data shows acres preserved by federal, state, and local programs that either acquire land preservation easements or acquire land in fee; data for each program is provided for each of Maryland’s 23 counties and Baltimore City.
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MD iMAP: Maryland Recreational Uses - Winter Sports
opendata.maryland.gov | Last Updated 2020-01-25T00:19:42.000ZThis is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. These baseline recreational use data will inform planning efforts being undertaken by the Maryland Department of Natural Resources to help inform public access - land acquisition - future planning and decision-making. Collecting data on the variety of ways the Chesapeake waters and surrounding lands are used will help us plan for reducing use conflicts in our coastal waters - maximizing efficiency - and enhancing environmental and economic productivity. Chesapeake Bay waters are used in many ways: commercial fishing - aquaculture - transport - habitat for wildlife - and recreation - among others. With new and expanding coastal and marine uses - as well as Maryland's growing coastal population - the pressure is mounting to ensure that there is space for both traditional and new uses and that conflicts are minimized. Some mapped human use data exist - but Maryland has limited recreational water use data for the Chesapeake waters. Basic data on how we use our coastal waters was collected by inviting residents and experts to share their knowledge about recreational uses at workshops using geographical information systems technology. Last Updated: 07/01/2014 Feature Service Layer Link: http://geodata.md.gov/imap/rest/services/Society/MD_RecreationalUses/FeatureServer/51 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.
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MD iMAP: Maryland Shoreline Hazard Index
opendata.maryland.gov | Last Updated 2020-01-25T00:15:40.000ZThis is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. Each point in Coastal Resiliency Assessment Shoreline Points represents a 250 meter segment of the Maryland coast - including Atlantic - Chesapeake Bay and Coastal Bay shorelines. The Natural Capital Project's Coastal Vulnerability model was used to calculate a Shoreline Hazard Index - representing the relative exposure of each segment to storm-induced erosion and flooding. Inputs to the model included 6 physical variables (geomorphology - elevation - sea level rise - wave power - storm surge height and erosion rates) and 5 habitat types (forest - marsh - dune - oyster reef and underwater grass). Two scenarios of the model were run: one scenario incorporating the protective role of all existing coastal habitats and the other scenario simulating the complete loss of habitats. The difference between the two scenarios indicates the potential magnitude of coastal hazard reduction by habitats at each location. Model results were integrated with MD DNR's Community Flood Risk Areas (March - 2016) in order to highlight areas where hazard reduction by habitats is most likely to benefit at-risk coastal communities.This dataset was produced under award number NA13NOS4190136 from the Office of Ocean and Coastal Resource Management (OCRM) - National Oceanic and Atmospheric Administration (NOAA) through the Maryland Department of Natural Resources Chesapeake and Coastal Services (CCS). The statements - finding and recommendations are those of the authors and do not necessarily reflect the views of NOAA or the U.S. Department of Commerce. The Natural Capital Project (NatCap) - CCS and The Nature Conservancy (TNC) all contributed to the production of this dataset. Last Updated: 3/31/2016Feature Service Link: http://geodata.md.gov/imap/rest/services/Environment/MD_CoastalResiliencyAssessment/FeatureServer/1 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.
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MD iMAP: Maryland Land Use Land Cover - Land Use Land Cover 2010
opendata.maryland.gov | Last Updated 2020-01-25T00:34:30.000ZThis is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The purpose of the 2010 land use/land cover data set is to provide a generalized view of how developed land has changed throughout the state - primarily capturing the conversion of resource land to development and characterizing the type of development (e.g. very low density - low density - medium density or high density residential development - commercial - industrial - institutional). Urban Land Uses: 11 Low-density residential - Detached single-family/duplex dwelling units - yards and associated areas. Areas of more than 90 percent single-family/duplex dwelling units - with lot sizes of less than five acres but at least one-half acre (.2 dwelling units/acre to 2 dwelling units/acre). 12 Medium-density residential - Detached single-family/duplex - attached single-unit row housing - yards - and associated areas. Areas of more than 90 percent single-family/duplex units and attached single-unit row housing - with lot sizes of less than one-half acre but at least one-eighth acre (2 dwelling units/acre to 8 dwelling units/acre). 13 High-density residential - Attached single-unit row housing - garden apartments - high-rise apartments/condominiums - mobile home and trailer parks; areas of more than 90 percent high-density residential units - with more than 8 dwelling units per acre. 14 Commercial - Retail and wholesale services. Areas used primarily for the sale of products and services - including associated yards and parking areas. 15 Industrial - Manufacturing and industrial parks - including associated warehouses - storage yards - research laboratories - and parking areas. 16 Institutional - Elementary and secondary schools - middle schools - junior and senior high schools - public and private colleges and universities - military installations (built-up areas only - including buildings and storage - training - and similar areas) - churches - medical and health facilities - correctional facilities - and government offices and facilities that are clearly separable from the surrounding land cover. 17 Extractive - Surface mining operations - including sand and gravel pits - quarries - coal surface mines - and deep coal mines. Status of activity (active vs. abandoned) is not distinguished. 18 Open urban land - Urban areas whose use does not require structures - or urban areas where non-conforming uses characterized by open land have become isolated. Included are golf courses - parks - recreation areas (except areas associated with schools or other institutions) - cemeteries - and entrapped agricultural and undeveloped land within urban areas. 191 Large lot subdivision (agriculture) - Residential subdivisions with lot sizes of less than 20 acres but at least 5 acres - with a dominant land cover of open fields or pasture. 192 Large lot subdivision (forest) - Residential subdivisions with lot sizes of less than 20 acres but at least 5 acres - with a dominant land cover of deciduous - evergreen or mixed forest. Agriculture: 21 Cropland - Field crops and forage crops. 22 Pasture - Land used for pasture - both permanent and rotated; grass. 23 Orchards/vineyards/horticulture - Areas of intensively managed commercial bush and tree crops - including areas used for fruit production - vineyards - sod and seed farms - nurseries - and green houses. 24 Feeding operations - Cattle feed lots - holding lots for animals - hog feeding lots - poultry houses - and commercial fishing areas (including oyster beds). 241 Feeding operations - Cattle feed lots - holding lots for animals - hog feeding lots - poultry houses. 242 Agricultural building breeding and training facilities - storage facilities - built-up areas associated with a farmstead - small farm ponds - commercial fishing areas. 25 Row and garden crops - Intensively managed truck and vegetable farms and associated areas. Forest: 41 Deciduous fore
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Maryland Green Infrastructure Hubs and Corridors
opendata.maryland.gov | Last Updated 2024-04-24T21:16:26.000ZMaryland's green infrastructure is a network of undeveloped lands that provide the bulk of the state's natural support system. These data map hub and corridor elements within the green infrastructure. The Green Infrastructure Assessment was developed to provide decision support for Maryland's Department of Natural Resources land conservation programs. Ecosystem services, such as cleaning the air, filtering water, storing and cycling nutrients, conserving soils, regulating climate, and maintaining hydrologic function, are all provided by the existing expanses of forests, wetlands, and other natural lands. These ecologically valuable lands also provide marketable goods and services, like forest products, fish and wildlife, and recreation. The Green Infrastructure serves as vital habitat for wild species and contributes in many ways to the health and quality of life for Maryland residents. To identify and prioritize Maryland's green infrastructure, we developed a tool called the Green Infrastructure Assessment (GIA). The GIA was based on principles of landscape ecology and conservation biology, and provides a consistent approach to evaluating land conservation and restoration efforts in Maryland. It specifically attempts to recognize: a variety of natural resource values (as opposed to a single species of wildlife, for example), how a given place fits into a larger system, the ecological importance of natural open space in rural and developed areas, the importance of coordinating local, state and even interstate planning, and the need for a regional or landscape-level view for wildlife conservation. The GIA identified two types of important resource lands - "hubs" and "corridors." Hubs typically large contiguous areas, separated by major roads and/or human land uses, that contain one or more of the following: Large blocks of contiguous interior forest (containing at least 250 acres, plus a transition zone of 300 feet) Large wetland complexes, with at least 250 acres of unmodified wetlands; Important animal and plant habitats of at least 100 acres, including rare, threatened, and endangered species locations, unique ecological communities, and migratory bird habitats; relatively pristine stream and river segments (which, when considered with adjacent forests and wetlands, are at least 100 acres) that support trout, mussels, and other sensitive aquatic organisms; and existing protected natural resource lands which contain one or more of the above (for example, state parks and forests, National Wildlife Refuges, locally owned reservoir properties, major stream valley parks, and Nature Conservancy preserves). In the GIA model, the above features were identified from Geographic Information Systems (GIS) spatial data that covered the entire state. Developed areas and major roads were excluded, areas less than 100 contiguous acres were dropped, adjacent forest and wetland were added to the remaining hubs, and the edges were smoothed. The average size of all hubs in the state is approximately 2200 acres. Corridors are linear features connecting hubs together to help animals and plant propagules to move between hubs. Corridors were identified using many sets of data, including land cover, roads, streams, slope, flood plains, aquatic resource data, and fish blockages. Generally speaking, corridors connect hubs of similar type (hubs containing forests are connected to one another; while those consisting primarily of wetlands are connected to others containing wetlands). Corridors generally follow the best ecological or "most natural" routes between hubs. Typically these are streams with wide riparian buffers and healthy fish communities. Other good wildlife corridors include ridge lines or forested valleys. Developed areas, major roads, and other unsuitable features were avoided.