| Originator | Minnesota DNR - Management Resources - MIS Unit |
| Abstract | SSURGO Version 2 soils data is digital format Natural Resource Conservation Service (NRCS) county soil survey information. It essentially captures the familiar County Soil Survey (produced by NRCS, formally SCS), in GIS format. It includes a variety of information on the physical and taxonomic charateristics of mapped soil bodies, as well as an assortment of interpretive information related to soil suitability for a variety of applications. The database design is quite complex, and includes over twenty related tables in its full implementation. Users should consult formal NRCS documentation for guidelines in proper use of the data |
| Use Tips | Consult the SSURGO User Guide at: http://www.ftw.nrcs.usda.gov/pdf/ssurgo_db.pdf. The problem with SSURGO is that a detailed understanding of a complex database design is necessary to make full use of the data. The user must recognize that each soil delineation may contain multiple components with their own sets of information. Understanding what is truly going on inside of a soils polygon requires the user to summarize the information for each component, preferably based on the relative proportion of each component within the mapping unit. Also the data are extremely dense. An average county runs approximately 60 Mb. |
| Browse Graphic | View a sample of the data. |
| Time Period of Content Date | 2009 |
| Currentness Reference | NRCS Website |
| Access Constraints | Data are unrestricted with regards to access |
| Use Constraints | The USDA provides the following additional language: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 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 on site 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. |
| Distributor Organization | DNR-MIS |
| Ordering Instructions | See Online Linkage or Distribution Contact |
| Online Linkage |
| Section 1 | Identification Information | Top of page | ||
| Originator | Minnesota DNR - Management Resources - MIS Unit | |||
| Title | Minnesota DNR Simplified SSURGO Soils | |||
| Abstract | SSURGO Version 2 soils data is digital format Natural Resource Conservation Service (NRCS) county soil survey information. It essentially captures the familiar County Soil Survey (produced by NRCS, formally SCS), in GIS format. It includes a variety of information on the physical and taxonomic charateristics of mapped soil bodies, as well as an assortment of interpretive information related to soil suitability for a variety of applications. The database design is quite complex, and includes over twenty related tables in its full implementation. Users should consult formal NRCS documentation for guidelines in proper use of the data | |||
| Use Tips | Consult the SSURGO User Guide at: http://www.ftw.nrcs.usda.gov/pdf/ssurgo_db.pdf. The problem with SSURGO is that a detailed understanding of a complex database design is necessary to make full use of the data. The user must recognize that each soil delineation may contain multiple components with their own sets of information. Understanding what is truly going on inside of a soils polygon requires the user to summarize the information for each component, preferably based on the relative proportion of each component within the mapping unit. Also the data are extremely dense. An average county runs approximately 60 Mb. | |||
| Purpose | SSURGO Version 2 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.
This particular product combines the county soil surveys into a single file geodatabase. The primary feature class contains an attribute table with fields for 16 of the most commonly requested soil properties. This allows for easy thematic mapping of these soil properties. The geodatabase also contains related tables and a set of relationship classes that allows for more detailed investigation of a particular soil map unit using the ArcMap info tool. Info tool results show up in the form of a tree that can be expanded to display the one-to-many relationship present between a soil map unit and the properties of the polygon. Finally, the attribute table also contains web links that connect to the NRCS website soil series description as well as the NRCS soil series extent map. |
|||
| Time Period of Content Date | 2009 | |||
| Currentness Reference | NRCS Website | |||
| Progress | Complete | |||
| Maintenance and Update Frequency | Bi-Yearly | |||
| Spatial Extent of Data | Statewide | |||
| Bounding Coordinates | -96.5 -89 49.5 43 |
|||
| Place Keywords | Minnesota | |||
| Theme Keywords | soils, soil suitability, agriculture, soil taxonomy, geoscientific Information | |||
| Theme Keyword Thesaurus | None | |||
| Access Constraints | Data are unrestricted with regards to access | |||
| Use Constraints | The USDA provides the following additional language: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 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 on site 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. | |||
| Contact Person Information | Sherry Buckley,
GIS Specialist Minnesota DNR - Management Resources - MIS Unit 1201 E Hwy 2 Grand Rapids, MN 55744 Phone: 218-999-7948 FAX: 218-327-4263 E-mail: | |||
| Browse Graphic | View a sample of the data. | |||
| Browse Graphic File Description | ||||
| Associated Data Sets | |
|||
| Section 2 | Data Quality Information | Top of full metadata | Top of page | |
| Attribute Accuracy | ||||
| Logical Consistency | Data are topologically correct using ArcMap-ArcInfo 9.3.1 | |||
| Completeness | Statewide excluding Koochiching, Pine, Crow Wing, Lake, Cook, and Northern St. Louis Counties. | |||
| Horizontal Positional Accuracy | Source layer soil_ssurgov2_py3: The USDA provides the following horizontal accuracy report: The accuracy of these digital data is based upon their compilation to base maps that meet National Map Accuracy Standards at a scale of 1 inch equals 1,000 feet. 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. | |||
| Vertical Positional Accuracy | Source layer soil_ssurgov2_py3: Not Applicable | |||
| Lineage | ||||
| Source Scale Denominator | Source layer soil_ssurgov2_py3: 24000 | |||
| Section 3 | Spatial Data Organization Information | Top of full metadata | Top of page | |
| Native Data Set Environment | ArcGIS File Geodatabase | |||
| Geographic Reference for Tabular Data | Soil Map Units | |||
| Spatial Object Type | vector | |||
| Vendor Specific Object Types | polygon | |||
| Tiling Scheme | state | |||
| Section 4 | Spatial Reference Information | Top of full metadata | Top of page | |
| Horizontal Coordinate Scheme | UTM | |||
| Ellipsoid | GRS1980 | |||
| Horizontal Datum | NAD83 | |||
| Horizontal Units | meters | |||
| Distance Resolution | Source layer soil_ssurgov2_py3: The USDA provides the following horizontal accuracy report: The accuracy of these digital data is based upon their compilation to base maps that meet National Map Accuracy Standards at a scale of 1 inch equals 1,000 feet. 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. | |||
| Altitude Datum | Not Applicable | |||
| Altitude Units | Not Applicable | |||
| Depth Datum | Not Applicable | |||
| Depth Units | Not Applicable | |||
| Cell Width | ||||
| Cell Height | ||||
| Latitude Resolution | ||||
| Longitude Resolution | ||||
| UTM Zone Number | 15 | |||
| SPCS Zone Identifier | ||||
| County Coordinate Zone Identifier | ||||
| Coordinate Offsets or Adjustments | Not Applicable | |||
| Map Projection Name | Transverse Mercator | |||
| Map Projection Parameters | Not Applicable | |||
| Other Coordinate System's Definition | Not Applicable | |||
| Section 5 | Entity and Attribute Information | Top of full metadata | Top of page | |
| Entity and Attribute Overview | ||||
| Entity and Attribute Detailed Citation | ||||
| Section 6 | Distribution Information | Top of full metadata | Top of page | |
| Publisher | Minnesota DNR - Management Resources - MIS Unit | |||
| Publication Date | 2010-10-06 00:00:00.0 | |||
| Contact Person Information | Hal Watson GIS Database Coordinator DNR-MIS 500 Lafayette Road, Box 11 St. Paul, MN 55155-4011 Phone: (651) 259-5508 FAX: (651) 297-4946 E-mail: |
|||
| Distributor's Data Set Identifier | soil_ssurgov2_py3 | |||
| Distribution Liability | The Minnesota Department of Natural Resources makes no representation or warranties, express or implied, with respect to the reuse of data provided herewith, regardless of its format or the means of its transmission. There is no guarantee or representation to the user as to the accuracy, currency, suitability, or reliability of this data for any purpose. The user accepts the data as is, and assumes all risks associated with its use. By accepting this data, the user agrees not to transmit this data or provide access to it or any part of it to another party unless the user shall include with the data a copy of this disclaimer. The Minnesota Department of Natural Resources assumes no responsibility for actual or consequential damage incurred as a result of any user reliance on this data. | |||
| Transfer Format Name | ArcGIS File Geodatabase | |||
| Transfer Format Version Number | ESRI FGDB 9.3 | |||
| Transfer Size | 2579000 | |||
| Ordering Instructions | See Online Linkage or Distribution Contact | |||
| Online Linkage | ||||
| Section 7 | Metadata Reference Information | Top of full metadata | Top of page | |
| Metadata Date | 2010-10-06 14:51:03.0 | |||
| Contact Person Information | Sherry Buckley,
GIS Specialist Minnesota DNR - Management Resources - MIS Unit 1201 E Hwy 2 Grand Rapids, MN 55744 Phone: 218-999-7948 FAX: 218-327-4263 E-mail: |
|||
| Metadata Standard Name | Minnesota Geographic Metadata Guidelines | |||
| Metadata Standard Version | 1.2 | |||
| Metadata Standard Online Linkage | http://www.gis.state.mn.us/stds/metadata.htm | |||