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Soil Survey Geographic (SSURGO) database for New Hampshire

Soil Survey Geographic (SSURGO) database for New Hampshire

Metadata also available as - [SGML] - [XML]

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: USDA/NRCS
Title: Soil Survey Geographic (SSURGO) database for New Hampshire
Online_Linkage: http://www.granit.unh.edu/data/search?dset=soils/nh
Description:
Abstract:
SSURGO depicts information about the kinds and distribution of soils on the landscape. The soil map and data used in the SSURGO product were prepared by soil scientists as part of the National Cooperative Soil Survey.
The dataset was downloaded on 1/26/2021 from the NRCS GeoSpatial Data Gateway (https://gdg.sc.egov.usda.gov/GDGOrder.aspx) and processed by NH GRANIT staff at the UNH Earth Systems Research Center to:
1) Project to NH State Plane feet, NAD83 2) Clip to the NH state boundary 3) Attach key soil attributes from the collection of related tables distributed by NRCS (see SSURGO_Metadata_-_Table_Column_Descriptions.pdf for descriptions) 4) Add and populate the "acres" field
The remainder of this metadata record is as provided with the downloaded source data, with the exception of the addition of several theme keywords and updating the Spatial Reference Information to reflect the processing described above.
Purpose:
The SSURGO dataset was created for use in national, regional, and statewide resource planning and analysis of soils data.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 202007
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Annual
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.594653
East_Bounding_Coordinate: -70.664747
North_Bounding_Coordinate: 45.307188
South_Bounding_Coordinate: 42.693749
Keywords:
Theme:
Theme_Keyword_Thesaurus: Standard for Geospatial Dataset File Naming
Theme_Keyword: Soils
Theme_Keyword: soil surveys
Theme_Keyword: soil units
Theme_Keyword: Soil Survey Geographic
Theme_Keyword: SSURGO
Theme_Keyword: geology
Place:
Place_Keyword_Thesaurus: GNIS
Place_Keyword: New Hampshire
Place_Keyword: Belknap
Place_Keyword: Carroll
Place_Keyword: Cheshire
Place_Keyword: Coos
Place_Keyword: Grafton
Place_Keyword: Hillsborough
Place_Keyword: Merrimack
Place_Keyword: Rockingham
Place_Keyword: Strafford
Place_Keyword: Sullivan
Access_Constraints:
The U.S. Department of Agriculture, Natural Resources Conservation Service, should be acknowledged as the data source in products derived from these data.This dataset is not designed for use as a primary regulatory tool in permitting or siting decisions, but may be used as a reference source. This is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions that they make. The Natural Resources Conservation Service will not perform any evaluations of these maps for purposes related solely to State or local regulatory programs. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data.
Use_Constraints:
The U.S. Department of Agriculture, Service Center Agencies should be acknowledged as the data source in products derived from these data.
This data set is not designed for use as a primary regulatory tool in permitting or citing decisions, but may be used as a reference source. This information may be interpreted by organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the Service Center Agencies any authority for the decisions that they make. The Service Center Agencies will not perform any evaluations of these data for purposes related solely to State or local regulatory programs.
Photographic or digital enlargement of these data to scales greater than at which they were originally mapped can cause misinterpretation of the data. Digital data files are periodically updated, and users are responsible for obtaining the latest version of the data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA/NRCS Soil Survey Center hotline@lin.usda.gov
Contact_Address:
Address_Type: postal
Address: 501 West Felix Street
City: Fort Worth
State_or_Province: Texas
Postal_Code: 76115
Contact_Voice_Telephone: 800 672 5559
Data_Quality_Information:
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: USDA/NRCS Soil Survey Center
Publication_Date: 2020
Title: Gridded Soil Survey Geographic (gSSURGO)
Source_Scale_Denominator: 24,000
Process_Step:
Process_Description:
The SSURGO dataset is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was prepared by digitizing maps, by compiling information onto a planimetric correct base and digitizing, or by revising digitized maps using remotely sensed and other information. This dataset consists of georeferenced digital map data and computerized attribute data. The map data are in a soil survey area extent format and include a detailed, field verified inventory of soils and miscellaneous areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. The soil map units are linked to attributes in the National Soil Information System (NASIS) relational database, which gives the proportionate extent of the component soils and their properties.
Process_Date: 202007
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: 0.002048
Ordinate_Resolution: 0.002048
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:
Overview_Description:
Entity_and_Attribute_Overview: Raster cell locations are based on map unit delineations which
Entity_and_Attribute_Detail_Citation: Relevant attributes are the pixel soil values.
Distribution_Information:
Distribution_Liability: Distribution_Liability
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Esri shapefile
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://datagateway.nrcs.usda.gov
Metadata_Reference_Information:
Metadata_Date: 20210127
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Department of Agriculture, Natural Resources Conservation Service, National Soil Survey Center
Contact_Position: point of contact
Contact_Address:
Address_Type: postal
Address: Federal Building, Room 152
City: Lincoln
State_or_Province: Nebraska
Postal_Code: 68508-3866
Country: US
Metadata_Standard_Name: SCI Minimum Compliance Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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