Level III Ecoregions of Missouri

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: US Environmental Protection Agency

Publication_Date: 20100501

Title: Level III Ecoregions of Missouri

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Publication_Information:

Publication_Place: Corvallis, OR

Publisher:

U.S. EPA Office of Research & Development (ORD) - National Health and Environmental Effects Research Laboratory (NHEERL)

Online_Linkage: <ftp://ftp.epa.gov/wed/ecoregions/mo/mo_eco_l3.zip>

Online_Linkage: <http://www.epa.gov/wed/pages/ecoregions.htm>

Larger_Work_Citation:

Citation_Information:

Publication_Date:

Title:

Series_Information:

Publication_Information:

Description:

Abstract:

Ecoregions by state were extracted from the seamless national shapefile. Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. These general purpose regions are critical for structuring and implementing ecosystem management strategies across federal agencies, state agencies, and nongovernment organizations that are responsible for different types of resources within the same geographical areas. The approach used to compile this map is based on the premise that ecological regions can be identified through the analysis of patterns of biotic and abiotic phenomena, including geology, physiography, vegetation, climate, soils, land use, wildlife, and hydrology. The relative importance of each characteristic varies from one ecological region to another. A Roman numeral hierarchical scheme has been adopted for different levels for ecological regions. Level I is the coarsest level, dividing North America into 15 ecological regions. Level II divides the continent into 52 regions (Commission for Environmental Cooperation Working Group, 1997). At Level III, the continental United States contains 104 regions whereas the conterminous United States has 84 (U.S. Environmental Protection Agency, 2005). Level IV ecoregions are further subdivisions of Level III ecoregions. Methods used to define the ecoregions are explained in Omernik (1995, 2004), Omernik and others (2000), and Gallant and others (1989).
Literature cited: Commission for Environmental Cooperation Working Group, 1997, Ecological regions of North America- toward a common perspective: Montreal, Commission for Environmental Cooperation, 71 p. Gallant, A. L., Whittier, T.R., Larsen, D.P., Omernik, J.M., and Hughes, R.M., 1989, Regionalization as a tool for managing environmental resources: Corvallis, Oregon, U.S. Environmental Protection Agency, EPA/600/3-89/060, 152p. Omernik, J.M., 1995, Ecoregions - a framework for environmental management, in Davis, W.S. and Simon, T.P., eds., Biological assessment and criteria-tools for water resource planning and decision making: Boca Raton, Florida, Lewis Publishers, p.49-62. Omernik, J.M., Chapman, S.S., Lillie, R.A., and Dumke, R.T., 2000, Ecoregions of Wisconsin: Transactions of the Wisconsin Academy of Science, Arts, and Letters, v. 88, p. 77-103. Omernik, J.M., 2004, Perspectives on the nature and definitions of ecological regions: Environmental Management, v. 34, Supplement 1, p. s27-s38.
Comments and questions regarding Ecoregions should be addressed to Glenn Griffith, Dynamac Corporation, c/o US EPA., 200 SW 35th Street, Corvallis, OR 97333, (541)-754-4465, email:griffith.glenn@epa.gov Alternate: James Omernik, USGS, c/o US EPA, 200 SW 35th Street, Corvallis, OR 97333, (541)-754-4458, email:omernik.james@epa.gov

Purpose:

Ecoregion maps assist managers of aquatic and terrestrial resources to understand the regional patterns of the realistically attainable quality of these resources

Supplemental_Information:

Electronic versions of ecoregion maps and posters, as well as other ecoregion resources are available at: <http://www.epa.gov/wed/pages/ecoregions.htm>. Symbology layers for US Levels III and IV also available. Level IV ecoregions are not complete for California and Arizona, as of May, 2010. For these states, the polygons are for Level III or lower. The field "US_L4CODE" contains placeholder information derived from "US_L3CODE". Ecoregions were digitized at 1:250,000 scale and are intended for large geographic extents (i.e. states, multiple counties, or river basins). Use for smaller areas, such as individual counties or a 1:24,000 scale map boundary, is not recommended.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20100501

Currentness_Reference: Publication date

Status:

Progress: Ongoing

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -95.787941

East_Bounding_Coordinate: -88.757346

North_Bounding_Coordinate: 40.685321

South_Bounding_Coordinate: 35.933699

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: biota

Theme_Keyword: boundaries

Theme_Keyword: environment

Theme_Keyword: location

Theme:

Theme_Keyword_Thesaurus: EPA GIS Keyword Thesaurus

Theme_Keyword: Biology

Theme_Keyword: Conservation

Theme_Keyword: Ecology

Theme_Keyword: Ecosystem

Theme_Keyword: Environment

Theme_Keyword: Land

Theme_Keyword: Natural Resources

Theme:

Theme_Keyword_Thesaurus: User

Theme_Keyword:

US Ecoregion Levels III and IV, North American (CEC) Ecoregion Levels I, II, III

Place:

Place_Keyword: Selected State, Conterminous United States

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Missouri

Place_Keyword: United States

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Marc Weber

Contact_Organization:

U.S. Environmental Protection Agency, Office of Research & Development (ORD) - National Health and Environmental Effects Research Laboratory (NHEERL)

Contact_Position: GIS Analyst

Contact_Address:

Address_Type: mailing and physical address

Address: 200 S.W. 35th St.

City: Corvallis

State_or_Province: OR

Postal_Code: 97333

Contact_Voice_Telephone: (541) 754-4469

Contact_Electronic_Mail_Address: weber.marc@epa.gov

Contact_Instructions: <http://www.epa.gov/>

Security_Information:

Security_Classification_System: FIPS Pub 199

Security_Classification: No Confidentiality

Security_Handling_Description: Standard Technical Controls

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000

Cross_Reference:

Citation_Information:

Title: Ecoregions of the United States

Data_Quality_Information:

Logical_Consistency_Report:

Although ecoregion polygons and attributes have been checked for accuracy, some errors may remain. Polygons along state borders were reviewed and updated, May 2010.

Completeness_Report:

Level IV ecoregions are not complete for California and Arizona, as of May, 2010. For these states, the polygons are for Level III or lower. The field 'US_L4CODE" contains placeholder information derived from "US_L3CODE". Ecoregions were digitized at 1:250,000 scale and are intended for large geographic extents (i.e. states, multiple counties, or river basins). Use for smaller areas, such as individual counties or a 1:24,000 scale map boundary, is not recommended.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Data were collected using methods that have unknown accuracy (EPA National Geospatial Data Policy [NGDP] Accuracy Tier 10). For more information, please see EPA's NGDP at <http://epa.gov/geospatial/policies.html>)

Lineage:

Source_Information:

Source_Contribution:

The state borders were derived from the dtl_st.sdc on the ArcGIS DVD provided by ESRI. It was modified by removing Alaska and Hawaii polygons and all but the State field, adding some coastal islands based on imagery or NHDPlus areas, and restoring topology (removing internal gaps and small overlaps). The EPA regions were added to this custom geodatabase (dtl_48plyf) prior to the intersection process with the seamless ecoregion data.

Process_Step:

Process_Description:

1) U.S.G.S. 1:250,000 topographic maps are used to delineate the ecoregions. The lines drawn are manually digitized or scanned to produce georeferenced electronic files. 2) All base maps are joined together and errors along the edges are resolved. 3) Topology is established and the maps are reviewed for accuracy, completeness, and conformity with the original lines. Corrections are made as needed and topology regenerated. 4) Attributes are added. 5) Maps are plotted for visual inspection by two individuals and necessary changes made. 6) Ecoregions from all available states are merged and dissolved to identify and correct inconsistencies. 7) Polygons of the corrected seamless ecoregion features are extended beyond the coastal borders. 8) State and Ecoregion datasets are intersected. 9) Topology errors removed. 10) Final QA

Process_Date: 20100526

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 6

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 29.500000

Standard_Parallel: 45.500000

Longitude_of_Central_Meridian: -96.000000

Latitude_of_Projection_Origin: 23.000000

False_Easting: 0.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000001

Ordinate_Resolution: 0.000001

Planar_Distance_Units: meters

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: mo_eco_l3

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: US_L3CODE

Attribute_Definition: Code for Level III Ecoregion (US)

Attribute_Definition_Source: USEPA

Attribute:

Attribute_Label: US_L3NAME

Attribute_Definition: Name for Level III Ecoregion (US)

Attribute_Definition_Source: USEPA

Attribute:

Attribute_Label: NA_L3CODE

Attribute_Definition: Code for Level III Ecoregion (North America)

Attribute_Definition_Source: CEC

Attribute:

Attribute_Label: NA_L3NAME

Attribute_Definition: Name for Level III Ecoregion (North America)

Attribute_Definition_Source: CEC

Attribute:

Attribute_Label: NA_L2CODE

Attribute_Definition: Code for Level II Ecoregion (North America)

Attribute_Definition_Source: CEC

Attribute:

Attribute_Label: NA_L2NAME

Attribute_Definition: Name for Level II Ecoregion (North America)

Attribute_Definition_Source: CEC

Attribute:

Attribute_Label: NA_L1CODE

Attribute_Definition: Code for Level I Ecoregion (North America)

Attribute_Definition_Source: CEC

Attribute:

Attribute_Label: NA_L1NAME

Attribute_Definition: Name for Level I Ecoregion (North America)

Attribute_Definition_Source: CEC

Attribute:

Attribute_Label: STATE_NAME

Attribute_Definition: Name of State (US)

Attribute:

Attribute_Label: EPA_REGION

Attribute_Definition: EPA Administrative Region

Attribute:

Attribute_Label: L3_KEY

Attribute_Definition: US Level III Code and Name for Legend, Match to Style

Attribute:

Attribute_Label: L2_KEY

Attribute_Definition: NA Level II Code and Name for Legend, Match to Style

Attribute:

Attribute_Label: L1_KEY

Attribute_Definition: NA Level II Code and Name for Legend, Match to Style

Metadata_Reference_Information:

Metadata_Date: 20110308

Metadata_Future_Review_Date: 20140920

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Colleen Burch Johnson

Contact_Organization: SRA / Raytheon Contractors to US EPA

Contact_Position: GIS Analyst

Contact_Address:

Address_Type: mailing and physical address

Address: 200 S.W. 35th St

City: Corvallis

State_or_Province: OR

Postal_Code: 97333

Contact_Voice_Telephone: (541) 754-4454

Contact_Electronic_Mail_Address: johnson.colleen@epa.gov

Contact_Instructions: <http://www.epa.gov/>

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time