Department of Natural Resources (DNR) Wetlands inventory of Worcester, Maryland

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Maryland Department of Natural Resources
Publication_Date: 19890400
Title:
Department of Natural Resources (DNR) Wetlands inventory of Worcester, Maryland
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Annapolis, Maryland
Publisher: Maryland Department of Natural Resources - Geographic Information Services Division
Online_Linkage: http://science.nature.nps.gov/nrdata
Description:
Abstract:
This data set contains MD DNR (Maryland Department of Natural Resources) digital data files that are records of wetlands location and classification as defined by the U.S. Fish & Wildlife Service. This data set is one of a series available in 3.75 minute by 3.75 minute blocks containing ground planimetric coordinates of wetlands point, line, and area features and wetlands attributes. When completed, the series will provide coverage for the entire State of Maryland.
Purpose:
The purpose of this data set is to data provide consultants, planners, and resource managers with information on wetland location and type. The data were collected to augment the efforts of Maryland's regulatory wetland management programs and to assist in resource management efforts such as the Chesapeake Bay Program and the Coastal Zone Management Program.
Supplemental_Information:
Some attributes in the attribute table are undefined more information about them can be located at: http://www.dnr.state.md.us/sw_index_flash.asp
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Currentness_Reference:
source photography date
Status:
Progress: In work
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -75.665556
East_Bounding_Coordinate: -75.045549
North_Bounding_Coordinate: 38.452446
South_Bounding_Coordinate: 37.994016
Keywords:
Theme:
Theme_Keyword_Thesaurus: Assateague Island National Seashore Keyword Thesaurus
Theme_Keyword: wetlands
Theme_Keyword: marshes
Theme:
Theme_Keyword_Thesaurus: National Park Service Theme Category Thesaurus
Theme_Keyword: Wetlands
Theme_Keyword: Water
Theme_Keyword: Biology
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: biota
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: North America
Place_Keyword: Maryland
Place_Keyword: Worcester county
Place_Keyword: Assateague Island National Seashore
Place:
Place_Keyword_Thesaurus: National Park System Unit Name Thesaurus
Place_Keyword: Assateague Island National Seashore
Place:
Place_Keyword_Thesaurus: National Park System Unit Code Thesaurus
Place_Keyword: ASIS
Access_Constraints: This data set is governed by a license agreement. Please contact the custodian for information on access.
Use_Constraints:
Federal, State, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a different manner than that used in this inventory. There is no attempt, in either the design or products of this inventory, to define the limits of proprietary jurisdiction of any Federal, State, or local government or to establish the geographical scope of the regulatory programs of government agencies. Persons intending to engage in activities involving modifications within or adjacent to wetland areas should seek the advice of appropriate Federal, State, or local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may affect such activities. This data set is governed by a license agreement. Please contact the custodian for information on use.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Kenneth M. Miller
Contact_Organization: Maryland Department of Natural Resources - Geographic Information Services Division
Contact_Address:
Address_Type: mailing and physical address
Address:
Tawes State Office Building D-2 580 Taylor Avenue
City: Annapolis
State_or_Province: Maryland
Postal_Code: 21401-2397
Country: United States
Contact_Voice_Telephone: 410-260-8750
Contact_TDD/TTY_Telephone: 410-260-8835
Contact_Facsimile_Telephone: 410-260-8759
Contact_Electronic_Mail_Address: kenmiller@dnr.state.md.us
Hours_of_Service: 8:00am-4:30pm
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.2.0.700
Cross_Reference:
Citation_Information:
Originator: Maryland Department of Natural Resources
Publication_Date: 19890400
Title:
Metadata for Department of Natural Resources (DNR) Wetlands inventory of Worcester, Maryland
Geospatial_Data_Presentation_Form: vector digital data
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy is tested by manual comparison of the
attribute consistency across map neat lines and display of
the digital wetlands data on an interactive computer graphic
system.
Logical_Consistency_Report:
Polygons intersecting the neat line are closed along the
border. Segments making up the outer and inner
boundaries of a polygon tie end-to-end to completely
enclose the area. Line segments are a set of sequentially
numbered coordinate pairs. No duplicate features exist nor
duplicate points in a data string. Intersecting lines are
separated into individual line segments at the point of
intersection. All nodes are represented by a single
coordinate pair which indicates the beginning or end of a
line segment. The neat line is generated by connecting the
four corners of the digital file, as established during
initialization of the digital file. All data crossing the neat line
are clipped to the neat line and data within a specified
tolerance of the neat line are snapped to the neat line. Tests
for logical consistency are performed.
Completeness_Report:
All photo-interpretable wetlands are mapped. In general, the
minimum mapping unit is from 1/2 acre depending on the
wetland type and the scale and emulsion of the source
aerial photography. In regions of the State where evergreen
forested wetlands predominate, wetlands smaller than 3
acres may not be mapped. Thus, a detailed on the ground
and historical analysis of a single site may result in a revision
of the wetland boundaries established through
photographic interpretation. In addition, some small
wetlands and those obscured by dense forest cover may
not be included in this data set.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
unknown
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
unknown
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey (USGS)
Originator: Maryland Department of Natural Resources
Publication_Date: 19890400
Title:
National Aerial Photography Program and MD DNR NAPP-specification Aerial Photography Program.
Source_Scale_Denominator: 1:40000
Type_of_Source_Media: Color infrared aerial photograph film transparency
Source_Time_Period_of_Content:
Source_Currentness_Reference:
photo data
Source_Citation_Abbreviation:
DNR1
Source_Contribution:
wetlands spatial and attribute information
Source_Information:
Source_Citation:
Citation_Information:
Originator: Maryland Department of Natural Resources
Publication_Date: 19890000
Title:
digital orthophoto map
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Annapolis, Maryland
Publisher: Maryland Department of Natural Resources
Source_Scale_Denominator: 1:12000
Type_of_Source_Media: digital file
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19890000
Ending_Date: 19950000
Source_Currentness_Reference:
Publication Date
Source_Citation_Abbreviation:
DNR2
Source_Contribution:
wetlands location and classification
Process_Step:
Process_Description:
Wetland maps are compiled through manual photo
interpretation of NAPP-specification aerial photography
supplemented by Soil Surveys and field checking of
wetland photo signatures. Delineated wetland boundary
overlays are digitally transferred from interpreted photos and
registered to DNR 3.75 minute digital orthophoto maps and
then manually labeled. Files contain ground planimetric
coordinates and wetland attributes.
The quadrangles were originally referenced to the Maryland
State Plane Coordinate System Zone 1900 in the North
American Datum of 1983 (NAD83) horizontal datum using
the Geodetic Reference System 1980. The scanning
process captures the data at a scanning resolution of at
least 0.001 inches; the resulting raster data are vectorized,
hand fitted by photo interpreters to the digital image and
then attributed on an interactive editing station. Quality
control steps occur throughout the photo interpretation,
map compilation, and map reproduction processes.
Source_Used_Citation_Abbreviation:
DNR
Process_Date: 19950000
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Assateague Island National Seashore
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address:
8:00am-4:30pm
City: Berlin
State_or_Province: Maryland
Postal_Code: 21811
Country: United States
Contact_Voice_Telephone: 410-641-1443
Contact_Facsimile_Telephone: 410-641-1099
Contact_Electronic_Mail_Address: asis_gis@nps.gov
Hours_of_Service: 8:00am-4:30pm
Process_Step:
Process_Description:
This is the dissolved coverage of the original. It has been
edited to correct all known mislabeled polygons in and is
complete to the best of our knowledge.
Process_Date: 19980200
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Assateague Island National Seashore
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address:
7206 National Seashore Lane
City: Berlin
State_or_Province: Maryland
Postal_Code: 21811
Country: United States
Contact_Voice_Telephone: 410-641-1443
Contact_Facsimile_Telephone: 410-641-1099
Contact_Electronic_Mail_Address: asis_gis@nps.gov
Hours_of_Service: 8:30am - 4:30pm Monday - Friday
Cloud_Cover: none
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 9331
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 9341
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 9331
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 236
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 18
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -75.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000128
Ordinate_Resolution: 0.000128
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: mddnr_wet_u83m
Entity_Type_Definition:
lands transitional between terrestrial and aquatic systems where the water table is usually at or near the surface or the land is covered by shallow water
Entity_Type_Definition_Source:
Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of wetlands and deep water habitats of the United States. U.S. Fish Wildlife Service. 103 pp
Attribute:
Attribute_Label: FID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: valid wetland classification code list
Codeset_Source: Photo interpretation Conventions for the Wetlands Inventory, March 1990
Attribute:
Attribute_Label: Shape
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: AREA
Attribute_Definition:
Area of feature in square meters
Attribute_Definition_Source:
ASIS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.891000
Range_Domain_Maximum: 97895232.00000
Attribute_Units_of_Measure: square meters
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition:
Perimeter of features in meters
Attribute_Definition_Source:
ASIS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5.032000
Range_Domain_Maximum: 4711697.500000
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: MDWI_3M_
Attribute_Definition:
classification system
Attribute_Definition_Source:
ASIS
Attribute:
Attribute_Label: MDWI_3M_ID
Attribute_Definition:
classification system
Attribute_Definition_Source:
ASIS
Attribute:
Attribute_Label: DNRWET_TYP
Attribute_Definition:
classification system
Attribute_Definition_Source:
ASIS
Detailed_Description:
Entity_Type:
Entity_Type_Label: mdwi_3m.pat
Attribute:
Attribute_Label: FID
Attribute:
Attribute_Label: SHAPE
Attribute:
Attribute_Label: AREA
Attribute:
Attribute_Label: PERIMETER
Attribute:
Attribute_Label: MDWI_3M#
Attribute:
Attribute_Label: MDWI_3M-ID
Attribute:
Attribute_Label: DNRWET_TYPE
Overview_Description:
Entity_and_Attribute_Overview:
The wetland classification system is hierarchical, with
wetlands and deep water habitats divided among five major
systems at the broadest level. The five systems include
Marine (open ocean and associated coastline), Estuarine
(salt marshes and brackish tidal water), Riverine (rivers,
creeks, and streams), Lacustrine (lakes and deep ponds),
and Palustrine (shallow ponds, marshes, swamps, sloughs).
Systems are further subdivided into subsystems which
reflect hydrologic conditions. Below the subsystem is the
class which describes the appearance of the wetland in
terms of vegetation or substrate. Each class is further
subdivided into subclasses; vegetated subclasses are
described in terms of life form and substrate subclasses in
terms of composition. The classification system also
includes modifiers to describe hydrology (water regime),
soils, water chemistry (pH, salinity), and special modifiers
relating to man's activities (e.g., impounded, partly drained).
Entity_and_Attribute_Detail_Citation:
Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe.
Entity_and_Attribute_Detail_Citation:
Photo interpretation Conventions for the National Wetlands Inventory, March 1990
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Maryland DNR
Contact_Address:
Address_Type: mailing address
Address:
Tawes State Office Building D-2 580 Taylor Avenue
City: Annapolis
State_or_Province: Maryland
Postal_Code: 21401-2397
Country: United States
Contact_Voice_Telephone: 410-260-8750
Contact_TDD/TTY_Telephone: 410-260-8835
Contact_Facsimile_Telephone: 410-260-8759
Contact_Electronic_Mail_Address: kenmiller@dnr.state.md.us
Hours_of_Service: 8 am - 5 pm EST
Resource_Description: Downloadable Data
Distribution_Liability:
This data set is governed by a license agreement. Please contact the custodian for information concerning distribution.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: DLG
Format_Version_Number: 3
Format_Specification:
Optional
File_Decompression_Technique: no compression applied
Transfer_Size: 8.795
Digital_Transfer_Option:
Online_Option:
Access_Instructions:
Local area network
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: ISO 9660 Standard Digital Form
Fees: $65.00 per CD-ROM
Custom_Order_Process:
This data is governed by a license agreement. Please
contact the custodian for information concerning the order
form and license agreement.
Technical_Prerequisites:
Any CD ROM device capable of reading an ISO 9660 created disk.
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Worcester Regional GIS Program
Contact_Position: GIS Analyst
Contact_Address:
Address_Type: mailing and physical address
Address:
7206 National Seashore Lane
City: Berlin
State_or_Province: Maryland
Postal_Code: 21811
Contact_Voice_Telephone: 410-641-1443 x222
Contact_Facsimile_Telephone: 410-641-3008
Hours_of_Service: 8:30am - 4:30pm Monday - Friday
Resource_Description: Downloadable Data
Distribution_Liability:
The Worcester Regional GIS Program and its current associated members shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics ("GIF" format files) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data. The Worcester Regional GIS Program and its associated members give no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an associated member server and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on a computer system at the National Park Service, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 8.795
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: \\JULIA\d\wrgis\data\biological\terrestrial_flora\wetlands\mdwi\mdwi_3m
Access_Instructions:
Local area network
Fees: None
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Metadata_Reference_Information:
Metadata_Date: 20061010
Metadata_Review_Date: 20000229
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Maryland DNR
Contact_Address:
Address_Type: mailing and physical address
Address:
Tawes State Office Building D-2 580 Taylor Avenue
City: Annapolis
State_or_Province: Maryland
Postal_Code: 21401-2397
Country: United States
Contact_Voice_Telephone: 410-260-8750
Contact_TDD/TTY_Telephone: 410-260-8835
Contact_Facsimile_Telephone: 410-260-8759
Contact_Electronic_Mail_Address: kenmiller@dnr.state.md.us
Hours_of_Service: 8:00am-4:30pm
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: none
Metadata_Use_Constraints:
none
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: http://nrdata.nps.gov/profiles/nps_profile.xml
Profile_Name: NPS Metadata Profile
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