Name: BOEM Block Aliquots

Display Field: BLOCK_NUMB

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Aliquots are generated from full Outer Continental Shelf (OCS) blocks by subdividing each block into 16ths and allow for more detailed boundary delineation in offshore energy leasing. The aliquots use a letter designation in addition to their parent protraction number and OCS block number (ie. NK-1802, 6822F). A full OCS block is 4800 x 4800 meters, while an aliquot measures 1200 x 1200 meters. Smaller, clipped aliquots are found along the Fed/State OCS boundary and along UTM zone borders. This dataset includes aliquots for 60 protractions out of the available 80 protractions in the Atlantic and 36 of 71 off the US West Coast . The remaining 56 protractions are located on the seaward edge of the OCS . Aliquots for these protractions will be produced at a later date as needed.

Copyright Text: MarineCadastre.gov

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Supports Datum Transformation: true

Extent:

XMin: -126.000000009792
YMin: 23.8179233995461
XMax: -66.9108424363287
YMax: 48.5058994297158
Spatial Reference: 4269  (4269)

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HasZ: false

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HTML Popup Type: esriServerHTMLPopupTypeNone

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• PROT_NUMBE ( type: esriFieldTypeString, alias: Protraction Number, length: 7 )
• BLOCK_NUMB ( type: esriFieldTypeString, alias: Block Number, length: 10 )
• SHAPE ( type: esriFieldTypeGeometry, alias: Shape )

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

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