Name: Level III Ecoregions

Display Field: NA_L3NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: 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 50 regions (Commission for Environmental Cooperation Working Group, 1997). At Level III, the continental United States contains 104 regions whereas the conterminous United States has 85 (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).

Copyright Text: US Environmental Protection Agency

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 1000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -84.392092581878
YMin: 35.1192886064686
XMax: -82.632366662429
YMax: 36.1400001841436
Spatial Reference: 4269 (4269)

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field: GlobalID

Type ID Field: NA_L3NAME

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• NA_L3CODE (type: esriFieldTypeString, alias: NA_L3CODE, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true)
• NA_L3NAME (type: esriFieldTypeString, alias: NA_L3NAME, SQL Type: sqlTypeOther, length: 100, nullable: true, editable: true)
• NA_L2CODE (type: esriFieldTypeString, alias: NA_L2CODE, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true)
• NA_L2NAME (type: esriFieldTypeString, alias: NA_L2NAME, SQL Type: sqlTypeOther, length: 100, nullable: true, editable: true)
• NA_L1CODE (type: esriFieldTypeString, alias: NA_L1CODE, SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true)
• NA_L1NAME (type: esriFieldTypeString, alias: NA_L1NAME, SQL Type: sqlTypeOther, length: 100, nullable: true, editable: true)
• NA_L3KEY (type: esriFieldTypeString, alias: NA_L3KEY, SQL Type: sqlTypeOther, length: 125, nullable: true, editable: true)
• NA_L2KEY (type: esriFieldTypeString, alias: NA_L2KEY, SQL Type: sqlTypeOther, length: 125, nullable: true, editable: true)
• NA_L1KEY (type: esriFieldTypeString, alias: NA_L1KEY, SQL Type: sqlTypeOther, length: 125, nullable: true, editable: true)
• VError (type: esriFieldTypeString, alias: Vertical Error, SQL Type: sqlTypeOther, length: 25, nullable: true, editable: true, Coded Values: [<=15cm: <=15cm], [>10m: >10m], [>15cm <=1m: >15cm <=1m], ... 4 more ...)
• MapSource (type: esriFieldTypeString, alias: Geography Source, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• SourceDate (type: esriFieldTypeDate, alias: Source Date, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: true)
• MapMethod (type: esriFieldTypeString, alias: Map Method, SQL Type: sqlTypeOther, length: 4, nullable: true, editable: true, Coded Values: [AGPS: Autonomous GPS], [DERV: Derived/Calculated], [DGPS: Differential GPS], ... 3 more ...)
• QuadName (type: esriFieldTypeString, alias: Topographi Map Name Feature Occurs In, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true, Coded Values: [BINFIELD: BINFIELD], [BLOCKHOUSE: BLOCKHOUSE], [BRYSON CITY: BRYSON CITY], ... 32 more ...)
• UnitCode (type: esriFieldTypeString, alias: NPS alphabetic code for a NPS organizational unit., SQL Type: sqlTypeOther, length: 12, nullable: true, editable: true, Coded Values: [ABLI: ABLI - Abraham Lincoln Birthplace National Historic Site], [ACAD: ACAD - Acadia National Park], [ADADMIN: ADADMIN - AD, Administration Associate Director's Office], ... 651 more ...)
• EditDate (type: esriFieldTypeString, alias: Edit Date, SQL Type: sqlTypeOther, length: 12, nullable: true, editable: true)
• IsSensitive (type: esriFieldTypeString, alias: Specifies whether or not the feature’s location is considered sensitive., SQL Type: sqlTypeOther, length: 3, nullable: true, editable: true, Coded Values: [Yes: Yes], [No: No], [Unk: Unknown])
• UnitName (type: esriFieldTypeString, alias: Full name of the NPS organizational unit., SQL Type: sqlTypeOther, length: 255, nullable: true, editable: true)
• IsExtant (type: esriFieldTypeString, alias: Specifies whether or not the feature currently exists, SQL Type: sqlTypeOther, length: 3, nullable: true, editable: true, Coded Values: [Yes: Yes], [No: No], [Unk: Unknown])
• HError (type: esriFieldTypeString, alias: Horizontal Error, SQL Type: sqlTypeOther, length: 25, nullable: true, editable: true, Coded Values: [<=15cm: <=15cm], [>10m: >10m], [>15cm <=1m: >15cm <=1m], ... 4 more ...)
• County (type: esriFieldTypeString, alias: Name of County, SQL Type: sqlTypeOther, length: 30, nullable: true, editable: true, Coded Values: [Swain: Swain], [Blount: Blount], [Sevier: Sevier], ... 4 more ...)
• State (type: esriFieldTypeString, alias: State Feature Occurs In, SQL Type: sqlTypeOther, length: 30, nullable: true, editable: true, Coded Values: [NC: North Carolina], [TN: Tennessee])
• X_Coord (type: esriFieldTypeDouble, alias: X Coordinate, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Y_Coord (type: esriFieldTypeDouble, alias: X Coordinate, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LAT (type: esriFieldTypeDouble, alias: Latitude, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LON (type: esriFieldTypeDouble, alias: Longitude, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Watershed (type: esriFieldTypeString, alias: Watershed Feature Occurs In, SQL Type: sqlTypeOther, length: 120, nullable: true, editable: true, Coded Values: [Meadow Fork: Meadow Fork], [Pigeon River-English Creek: Pigeon River-English Creek], [Boyds Creek: Boyds Creek], ... 83 more ...)
• SHAPE_STArea__ (type: esriFieldTypeDouble, alias: SHAPE.STArea(), SQL Type: sqlTypeOther, nullable: false, editable: true)
• SHAPE_STLength__ (type: esriFieldTypeDouble, alias: SHAPE.STLength(), SQL Type: sqlTypeOther, nullable: false, editable: true)
• GlobalID (type: esriFieldTypeGlobalID, alias: GlobalID, SQL Type: sqlTypeOther, length: 38, nullable: false, editable: false)

Types:

ID: Blue Ridge
Name: Blue Ridge
Domains:

• Field Name: VError
  Inherited
  
• Field Name: MapMethod
  Inherited
  
• Field Name: QuadName
  Inherited
  
• Field Name: UnitCode
  Inherited
  
• Field Name: IsSensitive
  Inherited
  
• Field Name: IsExtant
  Inherited
  
• Field Name: HError
  Inherited
  
• Field Name: County
  Inherited
  
• Field Name: State
  Inherited
  
• Field Name: Watershed
  Inherited
  
Templates:

Name: Blue Ridge
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SHAPE_STLength__: 0
• NA_L3NAME: Blue Ridge
• SHAPE_STArea__: 0

---

ID: Ridge and Valley
Name: Ridge and Valley
Domains:

• Field Name: VError
  Inherited
  
• Field Name: MapMethod
  Inherited
  
• Field Name: QuadName
  Inherited
  
• Field Name: UnitCode
  Inherited
  
• Field Name: IsSensitive
  Inherited
  
• Field Name: IsExtant
  Inherited
  
• Field Name: HError
  Inherited
  
• Field Name: County
  Inherited
  
• Field Name: State
  Inherited
  
• Field Name: Watershed
  Inherited
  
Templates:

Name: Ridge and Valley
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SHAPE_STLength__: 0
• NA_L3NAME: Ridge and Valley
• SHAPE_STArea__: 0

---

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 6/28/2015 12:18:34 PM

Schema Last Edit Date: 6/28/2015 12:18:34 PM

Data Last Edit Date: 6/28/2015 12:18:34 PM

Supported Operations:   Query   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat