Bathymetry Lakes Lines
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Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: New Hampshire Department of Environmental Services
- Publication_Date: 20160629
- Title: Bathymetry Lakes Lines
- Geospatial_Data_Presentation_Form: vector digital data
- Online_Linkage:
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<URL:http://www.granit.unh.edu/cgi-bin/nhsearch?dset=bathymetry_lakes_lines/nh>
- Online_Linkage: <http://des.nh.gov/onestop/index.htm>
- Description:
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- Abstract:
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Provides bathymetric depth contours in feet for New Hampshire lakes surveyed by the New Hampshire Department of
Environmental Services since 2000 and New Hampshire Fish and Game.
- Purpose:
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This dataset was created to calculate lake volume for lake trophic classification and to provide lake
stakeholders with a bathymetric map. USE THIS DATA AT YOUR OWN RISK
- Supplemental_Information: Data distribution tile: statewide
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20000101
- Ending_Date: 20191011
- Currentness_Reference: The extents of the dataset.
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: Annually
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -72.508911
- East_Bounding_Coordinate: -70.728105
- North_Bounding_Coordinate: 45.287789
- South_Bounding_Coordinate: 42.680112
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: lake
- Theme_Keyword: pond
- Theme_Keyword: bathymetry
- Theme_Keyword: depth contour
- Theme_Keyword: environment
- Theme_Keyword: depth
- Theme_Keyword: New Hampshire
- Access_Constraints:
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None. Some NHDES GIS data is available online. To address homeland security concerns, access to some of these datasets is
available only to users who present a valid personal identification number (PIN) and password. These datasets have an access
constraint set to Upon NHDES Approval. Users can apply for a PIN and password using the OneStop Data Retrieval Registration Form.
Applicants should be very specific when providing information on the registration form to enable NHDES personnel to determine
their eligibility. For more information on what criteria is necessary to receive a PIN/password please visit
<http://des.nh.gov/onestop/index.htm>. The applicant shall be responsible for the accuracy of the information submitted
in a request for a PIN and Password. The applicant shall understand by submitting a registration form, said applicant shall be
responsible for the PIN and Password they receive and for any and all information collected using the PIN and Password, and that
NO LIABILITY IS INCURRED BY THE STATE by reason of providing the requested access.
- Use_Constraints:
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The dataset provides a rough estimate of a lake's depth contours and SHOULD NOT be used for navigational purposes.
Reference NHDES as the source of the data is required in any published use of the data. User is required to read metadata
completely before using the data. The information provided in this coverage is a subset of spatial databases developed
by the New Hampshire Department of Environmental Services (NHDES). Development of these databases is an ongoing
project; they may not contain all existing and potential sites, stations, or threats. NHDES is not responsible for the
use or interpretation of this information, or for any inaccuracies in the site names, tax map and lot information,
or locations. All information is subject to verification. These data are to be used for planning purposes only; distribution
is discouraged.
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: New Hampshire Department of Environmental Services
- Contact_Person: Scott Ashley
- Contact_Position: Biology Section Database Manager
- Contact_Address:
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- Address_Type: physical
- Address: 29 Hazen Drive
- City: Concord
- State_or_Province: NH
- Postal_Code: 03301
- Contact_Voice_Telephone: 603-271-3503
- Contact_Electronic_Mail_Address: scott.ashley@des.nh.gov
- Data_Set_Credit:
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New Hampshire Department of Environmental Services
New Hampshire Fish and Game
- Native_Data_Set_Environment:
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Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Quantitative_Attribute_Accuracy_Assessment:
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- Attribute_Accuracy_Explanation:
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NHDES is not responsible for the accuracy, use or interpretation of this information. Not intended for legal purposes. The data provides a rough estimate of a lake's depth contours and SHOULD NOT be used for navigational purposes.
- Logical_Consistency_Report:
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The points were plotted over USGS topographic quads and reviewed for positional accuracy as well as thoroughness of coverage for the water body being mapped.
- Lineage:
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- Process_Step:
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- Process_Description:
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The data was gathered using a GARMIN GPSMAP 168 sounder using North American Datum (NAD) State Plane 83. Waypoints collected were downloaded using Garmin MapSource software and converted to text. The points were imported and projected to NAD State Plane using ArcGIS. Using Spatial Analyst and 3-D Analyst in ArcGIS, the points were converted to a TIN. The TIN was used to create a raster that was used to create contours for each lake.
- Process_Step:
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- Process_Description:
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Data submitted by New Hampshire Fish and Game was assigned the appropriate AUIDs and incorporated into the rest of the bathymetry. Data that overlapped with existing bathymetry was not used.
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: String
- Point_and_Vector_Object_Count: 9581
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Map_Projection:
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- Map_Projection_Name: NAD 1983 StatePlane New Hampshire FIPS 2800 Feet
- Transverse_Mercator:
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- Scale_Factor_at_Central_Meridian: 0.9999666666666667
- Longitude_of_Central_Meridian: -71.66666666666667
- Latitude_of_Projection_Origin: 42.5
- False_Easting: 984250.0
- False_Northing: 0.0
- Planar_Coordinate_Information:
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- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
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- Abscissa_Resolution: 0.000000007286182768240225
- Ordinate_Resolution: 0.000000007286182768240225
- Planar_Distance_Units: foot_us
- Geodetic_Model:
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- Horizontal_Datum_Name: D North American 1983
- Ellipsoid_Name: GRS 1980
- Semi-major_Axis: 6378137.0
- Denominator_of_Flattening_Ratio: 298.257222101
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: bathymetry_lakes_lines
- Entity_Type_Definition: Bathymetric Line Contours for selected lakes in New Hampshire
- Entity_Type_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: FID
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: LAKE
- Attribute_Definition: The official name of the water body.
- Attribute_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: AU_ID
- Attribute_Definition:
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Identification number used by NHDES for assessing public waters.
- Attribute_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: HYA
- Attribute_Definition: Hydrology description
- Attribute_Definition_Source: NHDES
- Attribute_Domain_Values:
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- Enumerated_Domain:
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- Enumerated_Domain_Value: 1
- Enumerated_Domain_Value_Definition: Shoreline
- Enumerated_Domain_Value_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: METERS
- Attribute_Definition: Length of line in meters calculated using ArcGIS.
- Attribute_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: DEPTH
- Attribute_Definition: Water depth in feet.
- Attribute_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: TOWN
- Attribute_Definition: Towns in which the majority of the water body resides.
- Attribute_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: COUNTY
- Attribute_Definition: Counties in which the majority of the water body resides.
- Attribute_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: DESCRIP
- Attribute:
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- Attribute_Label: SOURCE
- Attribute_Definition: The state agency that created the bathymetry.
- Attribute_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: LENGTH
- Attribute_Definition: The length of the line in feet calculated using ArcGIS.
- Attribute_Definition_Source: NHDES
- Attribute:
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- Attribute_Label: DATASOURCE
- Attribute_Definition: Lists the source of the line segment.
- Attribute_Definition_Source: NHDES
- Attribute_Domain_Values:
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- Enumerated_Domain:
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- Enumerated_Domain_Value: DIG
- Enumerated_Domain_Value_Definition: Digitized from an existing map.
- Enumerated_Domain_Value_Definition_Source: NHDES
- Enumerated_Domain:
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- Enumerated_Domain_Value: DLG
- Enumerated_Domain_Value_Definition: Digital line graph.
- Enumerated_Domain_Value_Definition_Source: NHDES
- Enumerated_Domain:
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- Enumerated_Domain_Value: GPS
- Enumerated_Domain_Value_Definition:
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Line derived by processing GPS/depth information using the previously detailed protocols.
- Enumerated_Domain_Value_Definition_Source: NHDES
- Metadata_Reference_Information:
- Metadata_Date: 20191011
- Metadata_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: New Hampshire Department of Environmental Services
- Contact_Person: Scott Ashley
- Contact_Position: Biology Section Database Manager
- Contact_Address:
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- Address_Type: unknown
- Address: 29 Hazen Drive
- City: Concord
- State_or_Province: New Hampshire
- Postal_Code: 03301
- Contact_Voice_Telephone: 603-271-3503
- Contact_Electronic_Mail_Address: scott.ashley@des.nh.gov
- Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
Generated by mp version 2.8.13 on Tue Oct 22 12:03:26 2019