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Two Foot Topographic Contours - Stearns Brook-Androscoggin River (0104000106) - filtered

Two Foot Topographic Contours - Stearns Brook-Androscoggin River (0104000106) - filtered

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
GRANIT, Earth Systems Research Center, University of New Hampshire
Publication_Date: 20191001
Title:
Two Foot Topographic Contours - Stearns Brook-Androscoggin River (0104000106) - filtered
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Durham, New Hampshire
Publisher:
GRANIT, Earth Systems Research Center, University of New Hampshire
Other_Citation_Details: None
Online_Linkage:
<URL:http://www.granit.unh.edu/cgi-bin/nhsearch?dset=contours_2ft/Contour_2ft_0104000106_filter>
Description:
Abstract:
This data set represents filtered, 2-foot bare earth contours (isolines) for the Stearns Brook-Androscoggin River (0104000106) HUC 10 unit. It was derived from a data set which was compiled from LIDAR collections in NH available as of spring, 2019. The raster was filtered using the ArcGIS FOCAL STATISTICS tool with a 3x3 circular neighborhood. The contours were generated using the ArcGIS CONTOUR tool while applying a Z factor of 3.2808 to convert the elevation values from meters to feet. The data include an INDEX field with values of 10 and 100 to flag 10 and 100-foot contours. Note on HUC 01060000310: Due to limitations in the source LIDAR data, some anomalies exist in the generated contours in coastal areas of the state. These were left in the data so that users can determine what further processing best meets their application needs.
Purpose:
These contours connect points of equal elevation at 2-foot intervals, and are one of a suite of topographic datasets available from NH GRANIT that convey the shape of the Earth's surface.
Supplemental_Information:
Two companion data sets representing (1) smoothed versions of the filtered contours (Two Foot Topographic Contours - Stearns Brook-Androscoggin River (0104000106) - smoothed, recommended for cartographic purposes only) and (2) shapefile showing the extents of source LiDAR-derived DEM data (Two Foot Topographic Contours - LiDAR Source) are also available from GRANIT.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20110506
Ending_Date: 20180524
Currentness_Reference: None
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.306687656
East_Bounding_Coordinate: -71.0159743372
North_Bounding_Coordinate: 44.815031699
South_Bounding_Coordinate: 44.4083928723
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: contours
Theme_Keyword: hypsography
Theme_Keyword: LiDAR
Theme_Keyword: Stearns Brook-Androscoggin River
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: Northeast
Place_Keyword: New England
Place_Keyword: New Hampshire
Place_Keyword: Stearns Brook-Androscoggin River
Place_Keyword: HUC 10 0104000106
Access_Constraints: None
Use_Constraints: Please cite NH GRANIT.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: GRANIT, Earth Systems Research Center
Contact_Person: GRANIT Database Manager
Contact_Position: 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
Data_Set_Credit: NH GRANIT
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.6.1; Esri ArcGIS Pro 2.3.3

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The critical attribute of this data is the contour elevation, the absolute accuracy of which has been affected by a number of processing steps. The original LiDAR elevation source DEMs had a 0.7 - 2 meter or better nominal post spacing (GSD) and a bare earth vertical accuracy of 7 - 18 centimeters RMSEz. Prior to contouring, the input raster was FILTERED using a 3x3 circular neighborhood. The original elevation units of meters were converted to feet using a factor of 3.2808.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value: Floating point
Attribute_Accuracy_Explanation: None
Logical_Consistency_Report:
Polyline topology was used to ensure that contours do not intersect or overlap.
Completeness_Report:
Data are complete for the State of New Hampshire, and reflect the content of the source datasets.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
GRANIT, Earth Systems Research Center, University of New Hampshire
Publication_Date: 200601
Title: New Hampshire Hydrography Dataset
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1956
Ending_Date: 2005
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: HUC_10
Source_Contribution: NHD HUC 10 watershed delineations
Source_Information:
Source_Citation:
Citation_Information:
Originator: Photo Science, Inc.
Publication_Date: 2011
Title: Coastal New Hampshire 2011 LiDAR collection
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20110506
Ending_Date: 20110630
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: Coastal_LiDAR_DEM
Source_Contribution: Input LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator: Quantum Spatial, Inc.
Publication_Date: 2016
Title: USGS Connecticut River NH State Plane LiDAR
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20151024
Ending_Date: 20160429
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: Connecticut_LiDAR_DEM
Source_Contribution: Input LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator: Woolpert, Inc.
Publication_Date: 2014
Title: Isle of Shoals Lidar
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20131208
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: Isles_of_Shoals_LiDAR_DEM
Source_Contribution: Input LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator: Federal Emergency Management Agency
Publication_Date: 20120914
Title:
TERRAIN, Merrimack HUC 8 Watershed, Massachusetts and New Hampshire
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20120914
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: Merrimack_LiDAR_DEM
Source_Contribution: Input LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator: Federal Emergency Management Agency
Publication_Date: 20110715
Title: TERRAIN, Nashua, Massachusetts
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20110128
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: Nashua_LiDAR_DEM
Source_Contribution: Input LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator: Quantum Spatial, Inc.
Publication_Date: 20180830
Title: Umbagog NH/ME 2016 LiDAR
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20160406
Ending_Date: 20180524
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: Umbagog_LiDAR_DEM
Source_Contribution: LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator: Photo Science, Inc.
Publication_Date: Unpublished Material
Title:
White Mountain National Forest Lidar (USGS Contract: G10PC00026 Task Order Numbers: G10PD01309 and G10PD00088)
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20101111
Ending_Date: 20120419
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: WMNF_2011_LiDAR_DEM
Source_Contribution: LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator: Photo Science, Inc.
Publication_Date: Unpublished Material
Title:
White Mountain National Forest Lidar (USGS Contract: G10PC00026 Task Order Numbers: G12PD00775)
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20121106
Ending_Date: 20121117
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: WMNF_2012_LiDAR_DEM
Source_Contribution: LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator: Quantum Spatial, Inc.
Publication_Date: 20150410
Title: G14PD01014 - White Mountain National Forest3 LiDAR - FY2014
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20141028
Ending_Date: 20141106
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: WMNF_2014_LiDAR_DEM
Source_Contribution: LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator:
GRANIT, Earth Systems Research Center, University of New Hampshire
Publication_Date: 1992
Title: New Hampshire Political Boundaries at 1:24,000 Scale
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1953
Ending_Date: 1990
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: PBP
Source_Contribution: New Hampshire state outline
Process_Step:
Process_Description:
Created an Esri Mosaic Dataset comprising Coastal_LiDAR_DEM, Connecticut_LiDAR_DEM, Isles_of_Shoals_LiDAR_DEM, Merrimack_LiDAR_DEM, Nashua_LiDAR_DEM, Umbagog_LiDAR_DEM, WMNF_2011_LiDAR_DEM, WMNF_2012_LiDAR_DEM, and WMNF_2014_LiDAR_DEM. This interim data set is referenced to UTM Zone 19N, NAD83, meters with a vertical datum of NAVD88, meters.
Source_Used_Citation_Abbreviation:
Coastal_LiDAR_DEM, Connecticut_LiDAR_DEM, Isles_of_Shoals_LiDAR_DEM, Merrimack_LiDAR_DEM, Nashua_LiDAR_DEM, Umbagog_LiDAR_DEM, WMNF_2011_LiDAR_DEM, WMNF_2012_LiDAR_DEM, and WMNF_2014_LiDAR_DEM
Process_Date: 201809
Source_Produced_Citation_Abbreviation: DEM
Process_Step:
Process_Description:
Ran ArcGIS BUFFER tool using PBP as input and a buffer distance of 500-feet.
Source_Used_Citation_Abbreviation: PBP
Process_Date: various
Source_Produced_Citation_Abbreviation: PBP_BUF
Process_Step:
Process_Description:
Ran ArcGIS CLIP to extract HUC_10 polygons in and within 500-feet of New Hampshire (PBP_BUF)
Source_Used_Citation_Abbreviation: HUC_10, PBP_BUF
Process_Date: various
Source_Produced_Citation_Abbreviation: HUC_10_CLIP
Process_Step:
Process_Description:
Selected the HUC_10_CLIP polygon of interest from within ArcGIS Pro. Ran an in-house ArcGIS Pro model which comprises the following steps: Buffer the selected HUC_10_CLIP polygon by 1500 meters - HUC_10_CLIP_1; Set process extent to HUC_10_CLIP_1 polygon; Run COPY RASTER to extract rectangular dem from DEM - DEM_1; Run EXTRACT BY MASK to subset DEM_1 to the HUC_10_CLIP_1 shape; Run FOCAL STATISTICS using an Inverse Distance weighted neighborhood and the Sum output statistic - DEM_2; Run DIVIDE on the DEM_2 raster using the sum of the focal statistics neighborhood (10.50713904) as the divisor; Run the CONTOUR tool using DEM_2 as the input raster, a contour interval of 2 and a Z-factor of 3.2808 - CON_1; CLIP CON_1 by HUC_10 - CON_2; DICE CON_2 with a maximum vertex count of 5000 (output spatial reference system, NHSP, NAD83) - CON_3; Add a field named INDEX; Populate INDEX with values of 10 and 100 to flag 10 and 100-foot contours.
Source_Used_Citation_Abbreviation: HUC_10, PBP_BUF
Process_Date: various
Source_Produced_Citation_Abbreviation: CONTOURS
Process_Step:
Process_Description:
Final processing included; Create, validate and fix the following topology errors: contour must not intersect, contour must not overlap, contour must not self-intersect, contour must not self-overlap. In some coastal areas, spurious contours found in the ocean (presumably a result of wave action) were manually deleted.
Source_Used_Citation_Abbreviation: CONTOURS
Process_Date: various
Source_Produced_Citation_Abbreviation: CONTOURS

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 352152

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 StatePlane New Hampshire FIPS 2800 Feet
Transverse_Mercator:
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:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0003280833333333333
Ordinate_Resolution: 0.0003280833333333333
Planar_Distance_Units: foot_us
Geodetic_Model:
Horizontal_Datum_Name: North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: NAVD88
Altitude_Resolution: varies
Altitude_Distance_Units: foot

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Contour_2ft_0104000106_filter
Entity_Type_Definition: 2-foot elevation contours
Entity_Type_Definition_Source: GRANIT
Attribute:
Attribute_Label: OBJECTID
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: Id
Attribute_Definition: Software populated id.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated by the software.
Attribute:
Attribute_Label: Contour
Attribute_Definition: Elevation contour interval in feet.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Elevation contour intervals automatically generated by the software.
Attribute:
Attribute_Label: Shape_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: INDEX
Attribute_Definition: Value of index contour
Attribute_Definition_Source: GRANIT
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition: 10' index contour
Enumerated_Domain_Value_Definition_Source: GRANIT
Enumerated_Domain:
Enumerated_Domain_Value: 100
Enumerated_Domain_Value_Definition: 100' index contour
Enumerated_Domain_Value_Definition_Source: GRANIT

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: GRANIT, Earth Systems Research Center
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
Distribution_Liability:
Digital data in NH GRANIT represent the efforts of the contributing agencies to record information from the cited source materials. Earth Systems Research Center, under contract to the NH Office of Strategic Initiatives, and in consultation with cooperating agencies, maintains a continuing program to identify and correct errors in these data. OSI, ESRC, 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: Esri file geodatabase
Transfer_Size: 2324 MBs
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: Network_Resource_Name: <URL:http://www.granit.unh.edu>
Fees: No charge when downloaded from the Internet.
Technical_Prerequisites: Ability to read/import Esri file geodatabase format.

Metadata_Reference_Information:
Metadata_Date: 20190930
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: GRANIT, Earth Systems Research Center
Contact_Person: GRANIT Database Manager
Contact_Position: GRANIT Database Manager
Contact_Address:
Address_Type: physical
Address: 8 College Rd
City: Durham
State_or_Province: New Hampshire
Postal_Code: 03824
Country: US
Contact_Voice_Telephone: 603-862-1792
Contact_Facsimile_Telephone: 603-862-0188
Contact_Electronic_Mail_Address: granit@unh.edu
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 Fri Jan 10 12:18:18 2020
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