Identification_Information: Citation: Citation_Information: Originator: U.S. Department of Agriculture, Natural Resources Conservation Service Publication_Date: 200606 Title: Soil Survey Geographic SSURGO database for Rockingham County, New Hampshire Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Fort Worth, Texas Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service Online_Linkage: Description: Abstract: This data set is a digital soil survey and is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was collected 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 data set consists of georeferenced digital map data and computerized attribute data. The map data are in county soil survey format and include a detailed, field verified inventory of soils and nonsoil areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. Sometimes a special soil features layer (point and/or line features) is available. This layer displays the location of features too small to delineate at the mapping scale, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes in NHSoilMaster.dbf, which records the soil properties, as described in NHSoilMaster.doc. Purpose: SSURGO depicts information about soil features on or near the surface of the Earth. The data were collected as part of the National Cooperative Soil Survey. Supplemental_Information: Digital versions of hydrography, cultural features, and other associated layers that are not part of the SSURGO data set may be available from the primary organization listed in the Point of Contact. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -71.452083 East_Bounding_Coordinate: -70.605082 North_Bounding_Coordinate: 43.274989 South_Bounding_Coordinate: 42.733586 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: soil survey Theme_Keyword: soil units Theme_Keyword: soils Theme_Keyword: Soil Survey Geographic Theme_Keyword: SSURGO Theme_Keyword: geology Place: Place_Keyword_Thesaurus: Counties and County Equivalents of the States of the United States and the District of Columbia (FIPS Pub 6-3) Place_Keyword: Northeast Place_Keyword: New England Place_Keyword: New Hampshire Place_Keyword: Rockingham County Access_Constraints: None Use_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 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 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. Photographic or digital enlargement of these maps to scales greater than those at which they were originally mapped can cause misinterpretation of the data. If enlarged, maps do not show the small areas of contrasting soils that could have been shown at a larger scale. The depicted soil boundaries, interpretations, and analysis derived from them do not eliminate the need for onsite sampling, testing, and detailed study of specific sites for intensive uses. Thus, these data and their interpretations are intended for planning purposes only. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service Contact_Person: State Soil Scientist Contact_Position: State Soil Scientist Contact_Address: Address_Type: mailing address Address: 2 Madbury Road City: Durham State_or_Province: New Hampshire Postal_Code: 03824 Country: USA Contact_Voice_Telephone: 603 868 7581 Contact_TDD/TTY_Telephone: 202 720 7808 Contact_Facsimile_Telephone: 603 868 5301 Browse_Graphic: Browse_Graphic_File_Name: Browse_Graphic_File_Description: gif image file Browse_Graphic_File_Type: GIF Data_Set_Credit: GRANIT database at Complex Systems Research Center Native_Data_Set_Environment: ArcGIS 9.x Cross_Reference: Citation_Information: Originator: U.S. Department of Agriculture, Soil Conservation Service Publication_Date: 1989 Title: Soil Survey of Rockingham County, New Hampshire Geospatial_Data_Presentation_Form: text, table, map Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: 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. All attribute data conform to the attribute codes in the signed classification and correlation document and amendment(s) and are current as of the date of digitizing. Logical_Consistency_Report: Certain node/geometry and topology (GT) polygon/chain relationships are collected or generated to satisfy topological requirements. (The GT-polygon corresponds to the soil delineation). Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout, and the chains representing the limits of the file (neatline) are free of gaps. The tests of logical consistency are performed using vendor software. The neatline is generated by connecting the explicitly entered four corners of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline (i.e., with the longitude/latitude lines in geographic coordinates). All internal polygons are tested for closure with vendor software and are checked on hard copy plots. All data are checked for common soil lines (i.e., adjacent polygons with the same label). Quadrangles are edge matched within the soil survey area and edge locations generally do not deviate from centerline to centerline by more than 0.01 inch. Completeness_Report: A map unit is a collection of areas defined and named the same in terms of their soil and/or nonsoil areas. Each map unit differs in some respect from all others in a survey area and is uniquely identified. Each individual area is a delineation. Each map unit consists of one or more components. Soil scientists identified small areas of soils or nonsoil areas (special soil features) that have properties and behavior significantly different than the named soils in the surrounding map unit. Other inclusions that have a minimal effect on use and management, or those that could not be precisely located, were not mapped. Specific limits were established on the classification of soils, design and name of map units, location of special soil features, and the percentages of allowable inclusions. These limits are outlined in U.S. Department of Agriculture. 1975. Soil Taxonomy: A basic system of soil classification for making and interpreting soil surveys. Soil Conserv. Serv., U.S. Dep. Agric. Handb. 436.; U.S. Department of Agriculture. 1992. Keys to Soil Taxonomy. SMSS Technical Monograph No. 19. Soil Surv. Staff, Soil Conserv. Serv.; U.S. Department of Agriculture. 1993. National Soil Survey Handbook, title 430- VI. Soil Surv. Staff, Soil Conserv. Serv.; and U.S. Department of Agriculture. 1993. Soil Survey Manual. Soil Surv. Staff, U.S. Dep. Agric. Handbook 18. The actual composition and interpretive purity of the map unit delineations were based on statistical analysis of field observations and transect data. Adherence to National Cooperative Soil Survey standards and procedures is based on peer review, quality control, and quality assurance. Quality control is outlined in the memorandum of understanding for the soil survey area and in documents that reside with the Natural Resources Conservation Service state soil scientist. Four kinds of map units are used in soil surveys: consociations, complexes, associations, and undifferentiated groups. Consociations - Consociations are named for the dominant soil. In a consociation, delineated areas are dominated by a single soil taxon and similar soils. At least one half of the pedons in each delineation are of the same soil components so similar to the named soil that major interpretations are not affected significantly. The total amount of dissimilar inclusions of other components in a map unit generally does not exceed about 15 percent if limiting and 25 percent if nonlimiting. A single component of a dissimilar limiting inclusion generally does not exceed 10 percent if very contrasting. Complexes and associations - Complexes and associations are named for two or more dissimilar components with the dominant component listed first. They occur in a regularly repeating pattern. The major components of a complex cannot be mapped separately at a scale of about 1:20,000. The major components of an association can be separated at a scale of about 1:20,000. In each delineation of either a complex or an association, each major component is normally present, though their proportions may vary appreciably from one delineation to another. The total amount of inclusions in a map unit that are dissimilar to any of the major components does not exceed 15 percent if limiting and 25 percent if nonlimiting. A single kind of dissimilar limiting inclusion usually does not exceed 10 percent. Undifferentiated Groups - Undifferentiated groups consist of two or more components that do not always occur together in the same delineation, but are included in the same named map unit because use and management are the same or similar for common uses. Every delineation has at least one of the major components and some may have all of them. The same principles regarding proportion of inclusions apply to undifferentiated groups as to consociations. Minimum documentation consists of three complete soil profile descriptions that are collected for each soil added to the legend, one additional per 3,000 acres mapped; three 10 observation transects for each map unit, one additional 10 point transect per 3,000 acres. A defined standard or level of confidence in the interpretive purity of the map unit delineations is attained by adjusting the kind and intensity of field investigations. Field investigations and data collection are carried out in sufficient detail to name map units and to identify accurately and consistently areas of about 3 to 5 acres. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The accuracy of these digital data is based upon their compilation to base maps that meet National Map Accuracy Standards. The difference in positional accuracy between the soil boundaries and special soil features locations in the field and their digitized map locations is unknown. The locational accuracy of soil delineations on the ground varies with the transition between map units. For example, on long gently sloping landscapes the transition occurs gradually over many feet. Where landscapes change abruptly from steep to level, the transition will be very narrow. Soil delineation boundaries and special soil features generally were digitized within 0.01 inch of their locations on the digitizing source. The digital map elements are edge matched between data sets. The data along each quadrangle edge are matched against the data for the adjacent quadrangle. Edge locations generally do not deviate from centerline to centerline by more than 0.01 inch. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Department of Agriculture, Soil Conservation Service Publication_Date: 1994 Title: Soil Survey of Rockingham County, New Hampshire Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Washington, D.C. Publisher: U.S. Government Printing Office Source_Scale_Denominator: 20,000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: SCS1 Source_Contribution: information for mapunit delineations, attribute data, and soil symbols Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1977 Title: one-third orthophotograghs Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Source_Scale_Denominator: 20,000 Type_of_Source_Media: stable-base material Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1985 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: USGS1 Source_Contribution: compilation base and digitizing source Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1998 Title: digital orthophotoquads Geospatial_Data_Presentation_Form: remote-sensing image Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Source_Scale_Denominator: 24,000 Type_of_Source_Media: digital tape media Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: USGS2 Source_Contribution: compilation base and digitizing source Process_Step: Process_Description: Field procedures for the 1:20,000 second order soil survey included plotting of soil boundaries determined by field observations and by interpretation of remotely sensed data. Boundaries were verified at closely spaced intervals, and the soils in each delineation were identified by traversing and transecting the landscape. Soil scientists described and sampled the soils, analyzed the samples in the laboratory, and statistically analyzed the data. The classification and map unit names were finalized at the final correlation in December, 1985. Source_Used_Citation_Abbreviation: SCS1 Process_Date: 1985 Process_Step: Process_Description: The field maps were manually compiled to 1:20,000 one-third quadrangles. The soil symbols and delineations were digitized by Complex Systems Research Center (CSRC) at the Institute for the Study of Earth, Oceans and Space, University of New Hampshire. The high accuracy (.003 inch resolution) CALCOMP digitizing board was used with ARC/INFO version 6.0 software to perform the digitizing. The four annotated map corners were used for registration, and a RMS threshold of .003 was applied. Spatial accuracy was verified by overlaying plotted output of the digitized data on the source orthophotoquad. Map unit codes and point codes were also verified on the plotted overlays. In addition, a domain check was performed, for all codes in the digital data. Quality control and edge matching was performed by both CSRC and NRCS staff. Source_Used_Citation_Abbreviation: SCS1 Source_Used_Citation_Abbreviation: USGS1 Process_Date: 1990 Process_Step: Process_Description: Special soil features were manually digitized to the digital orthophotoquad base at a resolution of at least 0.01 inch by NRCS staff. Source_Used_Citation_Abbreviation: SCS1 Source_Used_Citation_Abbreviation: USGS2 Process_Date: 1998 Process_Step: Process_Description: The orthophotographs were merged and appended into a seamless county data layer. The digital data was transfered to 8mm tape by CSRC and delivered to the NRCS. The data was projected from the New Hampshire state plane coordinate system to the Universal Transverse Mercator coordinate system NAD27, Zones 18 and 19, by NRCS staff using ARC/INFO version 7.0 software. It was then processed to separate 7.5 minute quadrangle coverages and exported to DLG-3 optional format. NRCS performed a final review of the digital plots with the source orthophotos. The data was then delivered back to CSRC, where CSRC staff converted the data to ArcInfo coverage format, and projected it to NH State Plane Feet, NAD83. Source_Used_Citation_Abbreviation: SCS1 Source_Used_Citation_Abbreviation: USGS1 Process_Date: 1998 Process_Step: Process_Description: The attribute data was downloaded from the Map Unit Intepretation Records data (MUIR) residing in the New Hampshire State Soil Survey database. This database is maintained by the New Hampshire Soils Specialist in charge of the database according to the standards of the National Cooperative Soil Survey. Source_Used_Citation_Abbreviation: SCS1 Process_Date: 1998 Process_Step: Process_Description: Quad-based coverages were appended into a seamless county data layer by CSRC staff, using Arc 7.x software. Source_Used_Citation_Abbreviation: SCS1 Process_Date: 2001 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: 53642 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Label point Point_and_Vector_Object_Count: 18541 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 18541 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 28 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: 0.000415 Ordinate_Resolution: 0.000415 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: soil015.pat Entity_Type_Definition: ARC/INFO 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: SOIL015# 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: SOIL015-ID Attribute_Definition: User-defined feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Whole numbers that are automatically generated. Attribute: Attribute_Label: MUSYM Attribute_Definition: The symbol used to uniquely identify the mapunit in the soil survey. Attribute_Definition_Source: U.S. Department of Agriculture, Natural Resources Conservation Service Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Classification and Correlation of the Soils of Rockingham County, New Hampshire Codeset_Source: U.S. Department of Agriculture, Natural Resources Conservation Service Attribute: Attribute_Label: MULINK Attribute_Definition: Links the spatial data with the attribute data in NHSoilMaster.dbf. Attribute_Definition_Source: U.S. Department of Agriculture, Natural Resources Conservation Service Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Classification and Correlation of the Soils of Rockingham County, New Hampshire Codeset_Source: U.S. Department of Agriculture, Natural Resources Conservation Service Attribute: Attribute_Label: MUNAME Attribute_Definition: Correlated name of the mapunit. Attribute_Definition_Source: U.S. Department of Agriculture, Natural Resources Conservation Service Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Classification and Correlation of the Soils of Rockingham County, New Hampshire Codeset_Source: U.S. Department of Agriculture, Natural Resources Conservation Service Overview_Description: Entity_and_Attribute_Overview: Map Unit Delineations are closed polygons that may be dominated by a single soil or nonsoil component plus allowable similar or dissimilar soils, or they can be geographic mixtures of groups of soils or soils and nonsoil areas. The mapunit symbol uniquely identifies each closed delineation mapunit. Each symbol is linked to a mapunit name. The mapunit link is the key for linking information in NHSoilMaster.dbf, as described in NHSoilMaster.doc. Entity_and_Attribute_Detail_Citation: U.S. Department of Agriculture. 1975. Soil Taxonomy: A basic system of soil classification for making and interpreting soil surveys. Soil Conserv. Serv., U.S. Dep. Agric. Handb. 436. Entity_and_Attribute_Detail_Citation: U.S. Department of Agriculture. 1992. Keys to Soil Taxonomy. SMSS Technical Monograph No. 19. Soil Surv. Staff, Soil Conserv. Serv. Entity_and_Attribute_Detail_Citation: U.S. Department of Agriculture. 1993. National Soil Survey Handbook, title 430-VI. Soil Surv. Staff, Soil Conserv. Serv. Entity_and_Attribute_Detail_Citation: U.S. Department of Agriculture. 1993. Soil Survey Manual. Soil Surv. Staff, U.S. Dep. Agric. Handbook 18. Entity_and_Attribute_Detail_Citation: U.S. Department of Agriculture. 1994. Soil Survey Geographic (SSURGO) Data Base: Data use information. Soil Conserv. Serv. Entity_and_Attribute_Detail_Citation: U.S. Department of Agriculture. State Soil Survey Database Data Dictionary. Soil Conserv. Serv. 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: New Hampshire Postal_Code: 03824 Country: USA Contact_Voice_Telephone: 603 862 1792 Contact_Facsimile_Telephone: 603 862 0188 Contact_Electronic_Mail_Address: granit@unh.edu Hours_of_Service: 8:30 AM - 5:00 PM, 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, ESRI shapefile Transfer_Size: 24.916 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: Fees: No charge when downloaded from the internet. Cost of reproduction for provision on CD/ROM or other media. Ordering_Instructions: Email GRANIT (granit@unh.edu) or order from web site (www.granit.sr.unh.edu). Turnaround: Two weeks. Technical_Prerequisites: Ability to read/import shapefiles or Arc/Info export files. Metadata_Reference_Information: Metadata_Date: 19970918 Metadata_Review_Date: 200606 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service Contact_Person: State Soil Scientist Contact_Position: State Soil Scientist Contact_Address: Address_Type: mailing address Address: 2 Madbury Road City: Durham State_or_Province: New Hampshire Postal_Code: 03824 Country: USA Contact_Voice_Telephone: 603 868 7581 Contact_Facsimile_Telephone: 603 868 5301 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