Name: SRK_Lightning_Hazard

Display Field: LDR.SRK_Lightning_Hazard.AREA

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Lightning data were collected using the Southern African Lightning Detection Network (SALDN), a ground‑based VLF/LF lightning detection system operational since 2006. Individual lightning strokes detected by multiple sensors were grouped into flashes using space–time clustering algorithms. Daily lightning flash counts were aggregated spatially onto a regular grid and temporally averaged over a multi‑year period to produce climatological averages. The primary output is average annual cloud‑to‑ground lightning flash density (flashes/km²/year). Additional averaged parameters include average flash multiplicity (strokes per flash), median peak current (kA), and average percentage of positive‑polarity lightning.

Service Item Id: 660eadbf579f46fbba97bbf413ebb245

Copyright Text: Data Owner South African Weather Service (SAWS) Data Producer South African Weather Service – Nowcasting and Very Short Range Forecasting Group Sensor / Network Provider Vaisala Lightning Detection System (SALDN)

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 28.873479941000028
YMin: -31.082629941999983
XMax: 32.89400100700004
YMax: -26.804419937999967
Spatial Reference: 4148  (4148)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: Lightning_Hazard
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
• Value: 2
  Label: 2
  Description: N/A
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  Outline:
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Transparency: 0
Labeling Info:

Advanced Query Capabilities:

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

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• LDR.SRK_Lightning_Hazard.AREA ( type: esriFieldTypeDouble, alias: LDR.SRK_Lightning_Hazard.AREA )
• PERIMETER ( type: esriFieldTypeDouble, alias: PERIMETER )
• LIGHTNING_ ( type: esriFieldTypeDouble, alias: LIGHTNING_ )
• LIGHTNING1 ( type: esriFieldTypeDouble, alias: LIGHTNING1 )
• FLASH_DENS ( type: esriFieldTypeSmallInteger, alias: FLASH_DENS )
• Lightning_Hazard ( type: esriFieldTypeDouble, alias: Lightning_Hazard )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• Shape.STArea() ( type: esriFieldTypeDouble, alias: Shape.STArea() )
• Shape.STLength() ( type: esriFieldTypeDouble, alias: Shape.STLength() )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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