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Glacial Features (Line) - Quad 170 (PORTSMOUTH, NH-ME)

Glacial Features (Line) - Quad 170 (PORTSMOUTH, NH-ME)

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Complex Systems Research Center, University of New Hampshire
Publication_Date: 200502
Title: Glacial Features (Line) - Quad 170 (PORTSMOUTH, NH-ME)
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:
<http://www.granit.sr.unh.edu/cgi-bin/nhsearch?dset=glacl/glac170l>
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:
The Glacial Features (Line) layer describes linear features associated with surficial geology. These glacial features include, but are not limited to, Wisconsinan synglacial sea extents, meltwater channels, meltwater spillways, ice margins and eskers. This layer also includes non-glacial exposures such as gravel pit extents. An associated DBASE table (GLAC_DESC170L.dbf) is available with glacial feature descriptions.
Purpose:
This data depicts information about the kinds and distribution of linear glacial features on the landscape.
Supplemental_Information:
Distribution Tile: USGS Quadrangle. Related Datasets: Glacial Features - Point (glac<nnn>p), Surficial Geology (surf<nnn>), where <nnn> represents the quadrangle ID number.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 200502
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.875
East_Bounding_Coordinate: -70.750
North_Bounding_Coordinate: 43.125
South_Bounding_Coordinate: 43.000
Keywords:
Theme:
Theme_Keyword_Thesaurus: None.
Theme_Keyword: geology
Theme_Keyword: surficial geology
Theme_Keyword: glacial features
Theme_Keyword: exposures
Place:
Place_Keyword_Thesaurus: None.
Place_Keyword: United States
Place_Keyword: Northeast
Place_Keyword: New England
Place_Keyword: New Hampshire
Place_Keyword: Quad 170
Place_Keyword: PORTSMOUTH, NH-ME
Access_Constraints: None.
Use_Constraints: Not for legal use.
Point_of_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
Browse_Graphic:
Browse_Graphic_File_Name:
<http://www.granit.sr.unh.edu/cgi-bin/load_file?PATH=/data/database/d-webdata/glacl/browse.gif>
Browse_Graphic_File_Description: GIF image
Browse_Graphic_File_Type: GIF
Data_Set_Credit:
GRANIT Database, University of New Hampshire, in cooperation with the New Hampshire Department of Environmental Services (NHDES).
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800
Cross_Reference:
Citation_Information:
Originator: New Hampshire Department of Environmental Services
Publication_Date: Unknown
Title: New Hampshire Geological Survey
Publication_Information:
Publication_Place: Concord, NH
Publisher: New Hampshire Department of Environmental Services
Online_Linkage: <http://www.des.state.nh.us/Geology/>

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy is tested by manual comparison of the source with hard copy plots and/or symbolized display of the map data on an interactive computer graphic system. Selected attributes that cannot be visually verified on plots or on screen are interactively queried and verified on screen. In addition, the attributes are tested against a master set of valid attributes.
Logical_Consistency_Report: Line topology exists.
Completeness_Report: Data is complete for the tile.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Digitizing RMS error of .002 feet or less. Spatial features verified by manual comparison of the source with hard copy plots.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: NH Department of Environmental Services
Publication_Date: 1992
Title: Surficial Geologic Map of the PORTSMOUTH, NH-ME Quadrangle
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Concord, NH
Publisher: New Hampshire Department of Environmental Services
Online_Linkage: <http://www.des.state.nh.us/Geology/>
Source_Scale_Denominator: 24000/25000
Type_of_Source_Media: stable-base material
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1992
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: NHDES
Source_Contribution: Provided source for digitizing glacial features.
Process_Step:
Process_Description:
Field mapping procedure as follows:

Surficial geologic mapping represents a creative process of applying accepted models of glacial erosion and deposition to the interpretation of direct observations of landscapes and landforms in the field and representations of such features on topographic maps or aerial photographs. Exposures of undisturbed material in active or abandoned gravel pits, road cuts, excavations for building foundations, etc. provide critical data for mapping surficial geologic deposits and material textures. Geologists supplement subsurface observations at these sites by digging shallow holes with a shovel or extracting samples with a soil auger in areas that otherwise have limited exposures. Interpretation of mapped glacial features is aided by additional sources of information, including hydrography datasets and remotely sensed data such as aerial photographs. The locations of bedrock outcrops are also mapped to identify the extent of thin surficial materials, and to observe and record erosional features such as striations that indicate the direction of ice movement. All data localities and map unit boundaries are plotted as accurately as possible on a 1:24,000-scale topographic base map. Georeferenced water well data maintained by the NH Geological Survey, mostly representing private domestic water wells drilled in bedrock, are compiled for each map area. In particular, reported depths to bedrock and generalized stratigraphic descriptions serve as a valuable adjunct to field observations.

Although the exact procedures may differ between individual mappers, the process generally begins with an inspection of existing topographic maps and aerial photographs of the map area and surficial geologic maps in adjacent areas. A reconnaissance or "windshield survey" of the landscape is then conducted by driving as much of the road network in the map area as possible. Subsequent mapping is conducted on foot, preferably taking advantage of improved visibility during 'leaf off" conditions in the early spring and late fall. Map compilation is an ongoing process of refining and confirming preliminary observations and fitting the field evidence within a conceptual framework of glacial deposition.

Some surface features exhibit a morphology that geologists readily recognize as diagnostic of a specific mode of deposition. More commonly, however, depositional history must be reconstructed by interpreting numerous observations within a local study area. This effort is guided by a conceptual framework, generally known as the "morphosequence concept", that has been clearly articulated by Koteff and Pessl (1981) in the now classic publication "Systematic Ice Retreat in New England". To summarize:

"In the concept, a single sequence specifically refers to a continuum of landforms composed of melt-water deposits, from more collapsed forms due to melting of ice blocks at the head or upstream parts of outwash, to progressively less collapsed forms downstream. A sequence can thus be viewed as a body of stratified drift laid down, layer upon layer, by melt water at and beyond the margin of a glacier, while deposition was controlled by a specific base level. The complexity of the morphologic features depends on the relative number, size, and distribution of detached ice blocks around and over which the sequence was deposited."

The completed surficial geologic map thus represents a synthesis of all the field observations and other site-specific data subject to the best professional judgment of the individual mapper. Ultimately, the finished geologic map is the best representation of the surficial geology that can be compiled from all of the data available at the time of publication. Limitations always exist as a function of the scale of the map. Any map can be refined through the acquisition of new data, especially data collected at a higher resolution that supports presentation at a larger scale. In a sense, each surficial geologic map is a "progress report" on the evolving state of scientific understanding of earth processes and events during the last deglaciation.

Source_Used_Citation_Abbreviation: NHDES
Process_Date: Unknown
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NH Department of Environmental Services - NH Geological Survey
Contact_Person: NH Surficial Geologist
Contact_Position: NH Surficial Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: NH Department of Environmental Services
Address: 29 Hazen Drive
Address: P.O. Box 95
City: Concord
State_or_Province: NH
Postal_Code: 03302-0095
Country: US
Contact_Voice_Telephone: 603-271-3503
Contact_Facsimile_Telephone: 603-271-2867
Contact_Electronic_Mail_Address: geology@des.state.nh.us
Process_Step:
Process_Description:
Glacial features were digitized from source materials provided by NHDES using a Calcomp Drawing Board III by Complex Systems Research Center (CSRC). Edits were conducted on screen with guidance from NH Surficial Geologist, Carl Koteff. Hard copy check plots, digital data and source materials were sent to the NHDES for quality control. Final edits were made by CSRC as directed by the NHDES.
Source_Used_Citation_Abbreviation: NHDES
Process_Date: 2003
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Complex Systems Research Center
Contact_Person: GIS Database Manager
Contact_Position: GIS 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

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: 1

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: 0.000024
Ordinate_Resolution: 0.000024
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: glac170l.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: GLAC170L#
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: GLAC170L-ID
Attribute_Definition: User-defined feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Numeric Field
Attribute:
Attribute_Label: GLAC_TYPE
Attribute_Definition:
Glacial feature type. See GLAC_DESC170L.dbf for a list of glacial feature types.
Attribute_Definition_Source: NH Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Character field describing glacial feature types. Null value = -9999.
Attribute:
Attribute_Label: NON_GLAC
Attribute_Definition:
Type of non-glacial feature. See GLAC_DESC170L.dbf for a list of non-glacial feature types.
Attribute_Definition_Source: NH Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Character field describing non-glacial feature types. Null value = -9999.
Attribute:
Attribute_Label: VALUE
Attribute_Definition:
Glacial feature value - pertaining to associated surficial material. See SURMA_DESC170.dbf (distributed with surficial geology data) for surficial material descriptions.
Attribute_Definition_Source: NH Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Character field describing value pertaining to associated surficial material. Null value = -9999.

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:
GLAC170L - Glacial Features (Line) - Quad 170 (PORTSMOUTH, NH-ME)
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 State Planning, and in consultation with cooperating agencies, maintains a continuing program to identify and correct errors in these data. OSP, 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: 0.17 MB
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: 200502
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

Generated by mp version 2.8.13 on Thu Dec 13 10:07:24 2007
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