Identification_Information: Citation: Citation_Information: Originator: U.S. Fish & Wildlife Service, National Wetlands Inventory Publication_Date: 200502 Title: National Wetlands Inventory Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Durham, New Hampshire Publisher: Complex Systems Research Center, University of New Hampshire Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: Complex Systems Research Center, University of New Hampshire Publication_Date: 19860101 Title: NH GRANIT Database Publication_Information: Publication_Place: Durham, New Hampshire Publisher: Complex Systems Research Center, University of New Hampshire Online_Linkage: URL:http://www.granit.sr.unh.edu Description: Abstract: NWI digital data contains records of wetlands location and classification as defined by the U.S. Fish & Wildlife Service. The digital data as well as the hardcopy maps that were used as the source for the digital data are produced by the U.S. Fish & Wildlife Service's National Wetlands Inventory project. For attribute definitions, please see the file NWImapcode.doc. Purpose: The data provide consultants, planners, and resource managers with information on wetland location and type. The data were collected to meet U.S. Fish & Wildlife Service's mandate to map the wetland and deepwater habitats of the United States. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 197102 Ending_Date: 199212 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: Irregular Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -72.594653 East_Bounding_Coordinate: -70.664747 North_Bounding_Coordinate: 45.307189 South_Bounding_Coordinate: 42.693632 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: nwi Theme_Keyword: national wetlands inventory Theme_Keyword: water resources Theme_Keyword: wetlands Theme_Keyword: hydrologic Theme_Keyword: land cover Theme_Keyword: surface and manmade features Place: Place_Keyword_Thesaurus: None Place_Keyword: United States Place_Keyword: Northeast Place_Keyword: New England Place_Keyword: New Hampshire Access_Constraints: None. 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Fish & Wildlife Service, National Wetlands Inventory Contact_Position: Chief Cartographer Contact_Address: Address_Type: mailing and physical address Address: 9720 Executive Center Drive City: St. Petersburg State_or_Province: Florida Postal_Code: 33702 Contact_Voice_Telephone: 727-570-5400 Browse_Graphic: Browse_Graphic_File_Name: Browse_Graphic_File_Description: gif image file Browse_Graphic_File_Type: GIF Data_Set_Credit: U.S. Fish & Wildlife Service, National Wetlands Inventory Native_Data_Set_Environment: NWI uses Wetlands Analytical Mapping System (WAMS) software version 4.06 running under the SUNOS 4.x operating system to digitize wetlands information. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attribute accuracy is tested by manual comparison of the source with hard copy printouts and/or symbolized display of the digital wetlands data on an interactive computer graphic system. In addition, WAMS software (USFWS-NWI) tests the attributes against a master set of valid wetland attributes. Logical_Consistency_Report: Polygons intersecting the neatline 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. Point data are represented by two sets of coordinate pairs, each with the same coordinate values. All nodes are represented by a single coordinate pair which indicates the beginning or end of a line segment. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data crossing the neatline are clipped to the neatline and data within a specified tolerance of the neatline are snapped to the neatline. Tests for logical consistency are performed by WAMS verification software (USFWS-NWI). Completeness_Report: All photo-interpretable wetlands are mapped. In the treeless prairies, 1/4 acre wetlands are mapped. In forested areas, small open water and emergent wetlands are mapped. In general, the minimum mapping unit is from 1 to 3 acres depending on the wetland type and the scale and emulsion of the source aerial photography. In regions of the country 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 dataset. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Includes U.S. Geological Survey (USGS), U.S. Department of Agriculture (USDA), National Aeronautics and Space Administration (NASA), special project Publication_Date: varies Title: Includes National Aerial Photography Program (NAPP), National High Altitude Photography (NHAP), Agricultural and Stabilization Conservation Service (ASCS), NASA or special project photography Geospatial_Data_Presentation_Form: remote-sensing image Source_Scale_Denominator: varies Type_of_Source_Media: transparency Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 197102 Ending_Date: 199212 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: NWI1 Source_Contribution: wetlands spatial and attribute information Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: varies Title: topographic map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Source_Scale_Denominator: varies Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1902 Ending_Date: 1992 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NWI2 Source_Contribution: base cartographic data Source_Information: Source_Citation: Citation_Information: Originator: U.S. Fish & Wildlife Service, National Wetlands Inventory Publication_Date: varies Title: varies Publication_Information: Publication_Place: St.Petersburg, Florida Publisher: U.S. Fish & Wildlife Service, National Wetlands Inventory Source_Scale_Denominator: varies Type_of_Source_Media: stable-base material Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1979 Ending_Date: 1994 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NWI3 Source_Contribution: wetlands location and classification Source_Information: Source_Citation: Citation_Information: Originator: Complex Systems Research Center, University of New Hampshire Publication_Date: 19920101 Title: New Hampshire Political Boundaries at 1:24,000 Scale Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Durham, NH Publisher: Complex Systems Research Center, University of New Hampshire Online_Linkage: Source_Scale_Denominator: 24000 Type_of_Source_Media: digital tape media Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1953 Ending_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: CSRC1 Source_Contribution: provide New Hampshire state boundary Process_Step: Process_Description: NWI maps are compiled through manual photointerpretation of NHAP or NAPP aerial photography supplemented by Soil Surveys and field checking of wetland photo signatures. Delineated wetland boundaries are manually transferred from interpreted photos to USGS 7.5 minute topographic quadrangle maps and then manually labelled. Quality control steps occur throughout the photointerpretation, map compilation, and map reproduction processes. Source_Used_Citation_Abbreviation: NWI1 Source_Used_Citation_Abbreviation: NWI2 Process_Date: varies Source_Produced_Citation_Abbreviation: NWI3 Process_Step: Process_Description: Digital wetlands data are either manually digitized or scanned from stable-base copies of the 1:24,000 scale wetlands overlays registered to the standard U.S. Geological Survey (USGS) 7.5 minute quadrangles into topologically correct data files using Wetlands Analytical Mapping System (WAMS) software. Files contain ground planimetric coordinates and wetland attributes. The quadrangles were referenced to the North American Datum of 1927 (NAD27) horizontal datum. The scanning process captured the digital data at a scanning resolution of at least 0.001 inches; the resulting raster data were vectorized and then attributed on an interactive editing station. Manual digitizing used a digitizing table to capture the digital data at a resolution of at least 0.005 inches; attribution was performed as the data were digitized. The determination of scanning versus manual digitizing production method was based on feature density, source map quality, feature symbology, and availability of production systems. The data were checked for position by comparing plots of the digital data to the source material. Source_Used_Citation_Abbreviation: NWI3 Process_Date: varies Process_Step: Process_Description: Data for each 7.5' quad were downloaded from the NWI ftp site (ftp://enterprise.nwi.fws.gov) in arc interchange format (.e00). Each file was imported into ARC/INFO and projected to NH State Plane feet. Adjacent quadrangles were edge-matched in Arcedit. Process_Date: 200107 Process_Step: Process_Description: Appended individual quads into a statewide layer. Unioned with state outline and dissolved on NWICODE attribute. Then eliminated slivers along the western bank of CT River - primarily those coded as uplands. Also got rid of small, uncoded polygons along Canadian border. Added a new attribute - NWITYPE. NOTE: Two recodes prior to dissolve: Section of the Connecticut River in Brattleboro East Quad (GRANIT ID 188) - coded as L1UBHh (lacustrine) in original, quad-based data. Recoded to riverine. Same for Bellows Falls Quad (GRANIT ID 143). No attempt was made to fix spatial/dissolve errors at quad boundaries other than the default node snapping tolerance of 20 ft. Source_Used_Citation_Abbreviation: CSRC1 Process_Date: 200505 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Complete chain Point_and_Vector_Object_Count: 159054 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Label point Point_and_Vector_Object_Count: 86634 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 86634 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 4 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: State Plane Coordinate System 1983 State_Plane_Coordinate_System: SPCS_Zone_Identifier: 2800 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999967 Longitude_of_Central_Meridian: -71.666667 Latitude_of_Projection_Origin: 42.500000 False_Easting: 984250.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.004430 Ordinate_Resolution: 0.004430 Planar_Distance_Units: survey feet 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 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: nwinh.aat Entity_Type_Definition: arc attribute table Entity_Type_Definition_Source: None Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: FNODE# Attribute_Definition: Internal node number for the beginning of an arc (from-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: TNODE# Attribute_Definition: Internal node number for the end of an arc (to-node). Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: LPOLY# Attribute_Definition: Internal node number for the left polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: RPOLY# Attribute_Definition: Internal node number for the right polygon. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: NWINH# Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: NWINH-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: User defined. Attribute: Attribute_Label: NWICODE Attribute_Definition: classification of the wetland Attribute_Definition_Source: Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish Wildlife Service. 103 pp Attribute_Domain_Values: Codeset_Domain: Codeset_Name: valid wetland classification code list Codeset_Source: Photointerpretation Conventions for the National Wetlands Inventory, March 1990 Detailed_Description: Entity_Type: Entity_Type_Label: nwinh.pat Entity_Type_Definition: polygon attribute table Entity_Type_Definition_Source: None Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. 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 internal units squared. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of feature in internal units. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: NWINH# Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: NWINH-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: User defined. Attribute: Attribute_Label: NWICODE Attribute_Definition: classification of the wetland Attribute_Definition_Source: Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish Wildlife Service. 103 pp Attribute_Domain_Values: Codeset_Domain: Codeset_Name: valid wetland classification code list Codeset_Source: Photointerpretation Conventions for the National Wetlands Inventory, March 1990 Attribute: Attribute_Label: NWITYPE Attribute_Definition: wetland classification system abbreviation Attribute_Definition_Source: U.S. Fish and Wildlife Service Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: M Enumerated_Domain_Value_Definition: Marine Enumerated_Domain_Value_Definition_Source: U.S. Fish and Wildlife Service Enumerated_Domain: Enumerated_Domain_Value: E Enumerated_Domain_Value_Definition: Estuarine Enumerated_Domain_Value_Definition_Source: U.S. Fish and Wildlife Service Enumerated_Domain: Enumerated_Domain_Value: R Enumerated_Domain_Value_Definition: Riverine Enumerated_Domain_Value_Definition_Source: U.S. Fish and Wildlife Service Enumerated_Domain: Enumerated_Domain_Value: L Enumerated_Domain_Value_Definition: Lacustrine Enumerated_Domain_Value_Definition_Source: U.S. Fish and Wildlife Service Enumerated_Domain: Enumerated_Domain_Value: P Enumerated_Domain_Value_Definition: Palustrine Enumerated_Domain_Value_Definition_Source: U.S. Fish and Wildlife Service Enumerated_Domain: Enumerated_Domain_Value: U Enumerated_Domain_Value_Definition: Uplands Enumerated_Domain_Value_Definition_Source: U.S. Fish and Wildlife Service Overview_Description: Entity_and_Attribute_Overview: The wetland classification system is hierarchical, with wetlands and deepwater 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). In some cases, arcs on either side of quadrangle boundaries were misaligned. When this occurred, the interior section of quadrangle boundary was re-coded "connector." Entity_and_Attribute_Detail_Citation: Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish Wildlife Service. 103 pp. Entity_and_Attribute_Detail_Citation: Photointerpretation Conventions for the National Wetlands Inventory, March 1990 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Complex Systems Research Center, University of New Hampshire Contact_Person: GRANIT Database Manager Contact_Position: GRANIT Database Manager Contact_Address: Address_Type: mailing and physical address Address: Morse Hall, University of New Hampshire City: Durham State_or_Province: NH Postal_Code: 03824 Country: US Contact_Voice_Telephone: 603-862-1792 Contact_Facsimile_Telephone: 603-862-0188 Contact_Electronic_Mail_Address: granit@unh.edu Hours_of_Service: 8:30AM-5PM. EST Resource_Description: Downloadable Data Distribution_Liability: Digital data in NH GRANIT represent the efforts of the contributing agencies to record information from the cited source materials. Complex Systems Research Center, under contract to the NH Office of Energy and Planning, and in consultation with cooperating agencies, maintains a continuing program to identify and correct errors in these data. OEP, CSRC, and the cooperating agencies make no claim as to the validity or reliability or to any implied uses of these data. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Transfer_Size: 227 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: URL:http://www.granit.sr.unh.edu Fees: No charge when downloaded from the Internet. Cost of reproduction for provision on CD/ROM of other media. Ordering_Instructions: Email GRANIT (granit@unh.edu) or order from web site (www.granit.sr.unh.edu). Turnaround: Two weeks. Technical_Prerequisites: None. Metadata_Reference_Information: Metadata_Date: 20060215 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Complex Systems Research Center, University of New Hampshire Contact_Person: GRANIT Database Manager Contact_Position: GRANIT Database Manager Contact_Address: Address_Type: mailing and physical address Address: Morse Hall, University of New Hampshire City: Durham State_or_Province: NH Postal_Code: 03824 Country: US Contact_Voice_Telephone: 603-862-1792 Contact_Facsimile_Telephone: 603-862-0188 Contact_Electronic_Mail_Address: granit@unh.edu Hours_of_Service: 8:30AM-5PM, EST Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile