View In:   ArcGIS Online Map Viewer

Name: Slopes_CN

Display Field: gridcode

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Aggregated slopes for San Diego County. This dataset was built from a 10 meter GRID that was derived from a 2002 IfSAR elevation surface of the entire County. The IfSAR data was processed as first returns using X band data and that means that houses, trees, and other surface features show-up in the elevation model. Once the elevation model was reclassed and resized from its original resolution to a larger 10 meter resolution, the slope function was applied to it through GRID. This continuous surface built in GRID is the Raster GRID model called [sde.SANGIS.slope_stp_83]. This dataset was later reclassed and then vectorized into all slopes greater than 25%. That dataset exists as a vector dataset in SDE called [sde.SANGIS.SLOPE_STEEP25]. The GRID classifications in the source slope range from 0% slope to 2484.47753% slope. This translates essentially into flat to 87.70 degrees in angle. The reason 90 degree slopes are not recorded is most likely related to the 10 meter grid cell in horizontal distance. This translates into nowhere in the county is there a vertical elevation change greater than 787 feet (H= h+D*tan(Theta)) in a horizontal distance of less than 30 feet. This product recieved additional processing yielding four classifications of slopes: slopes less than 15% slope, slopes 15% to less than 25%, slopes 25% to less than 50% and slopes 50% or greater.

Service Item Id: 08b48187819049409761009dacd89cb1

Copyright Text: Ross Martin with County of San Diego, Planning and Development Services, LUEG GIS Service.

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Extent:

XMin: 6150763.740015969
YMin: 1775304.099967137
XMax: 6613437.0000350475
YMax: 2129759.999977812
Spatial Reference: 102646  (2230)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [220, 252, 209, 255]
Outline:
Style: esriSLSSolid
Color: [110, 110, 110, 255]
Width: 0
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: false
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: true
Supports Binning LOD: true
Supports Query With LOD Spatial Reference: true
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: false
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field:

Fields:

• objectid ( nullable: false, defaultValue: null, editable: false, length: 4, type: esriFieldTypeOID, modelName: objectid, alias: OBJECTID )
• gridcode ( modelName: GRIDCODE, nullable: true, editable: true, defaultValue: null, alias: GRIDCODE, type: esriFieldTypeDouble )
• globalid ( nullable: false, editable: false, defaultValue: null, length: 38, type: esriFieldTypeGlobalID, modelName: globalid, alias: globalid )
• SHAPE__Length ( virtual: true, nullable: true, editable: false, defaultValue: null, alias: SHAPE__Length, type: esriFieldTypeDouble )
• SHAPE__Area ( virtual: true, nullable: true, editable: false, defaultValue: null, alias: SHAPE__Area, type: esriFieldTypeDouble )

Templates:

• Name: Slopes_CN
  Description:
  Prototype:
  gridcode: null
  
  Drawing Tool: esriFeatureEditToolPolygon

Capabilities: Query,Sync,Extract

Sync Can Return Changes: true

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: true

Supports ApplyEdits By Upload Id: true

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Child Resources:   Field Groups   Contingent Values

Supported Operations:   Query   Query Attachments   Query Analytic   Query Top Features   Query Bins   Append   Validate SQL   Generate Renderer   Return Updates   Metadata   Update Metadata