Schema
Landmark Areas (USACE IENC) / Landmark Areas (USACE IENC) / v1.0.0
Schema from landmark-areas-usace-ienc-2.parquet, gcs-hifld-next-datasets-prod, v1.0.0.
The USACE IENCs coverage area consists of 7,260 miles across 21 rivers primarily located in the Central United States. IENCs apply to inland waterways that are maintained for navigation by USACE for shallow-draft vessels (e.g., maintained at a depth of 9-14 feet, dependent upon the waterway project authorization). Generally, IENCs are produced for those commercially navigable waterways which the National Oceanic and Atmospheric Administration (NOAA) does not produce Electronic Navigational Charts (ENCs). However, Special Purpose IENCs may be produced in agreement with NOAA. IENC POC: IENC_POC@usace.army.mil
| Column | Type | Nullable | Nulls | Unique | Description | Examples / Values |
|---|---|---|---|---|---|---|
| geometry | geometry | No | 0 | — | — Range: —Length: — | Examples: — Values: — |
| OBJECTID | integer | No | 0 | — | — Range: 1 to 6Length: — | Examples: 6, 3, 2, 4, 1 Values: — |
| Category_o | string | No | 0 | — | — Range: —Length: 9 | Examples: Chimney, Monuments, Chimney, Monuments, Chimney Values: Chimney, Monuments |
| Visually_C | string | No | 0 | — | — Range: —Length: 20 | Examples: Visually Conspicuous, Visually Conspicuous, Visually Conspicuous, Visually Conspicuous, Visually Conspicuous Values: Visually Conspicuous |
| Object_Nam | string | Yes | 1 | — | — Range: —Length: 26 | Examples: Fort Massac, Zimmer Powerstation, Fort Massac Reconstruction, Bellefonte Nuclear Plant, Bellefonte Nuclear Plant Values: Bellefonte Nuclear Plant, Fort Massac, Fort Massac Reconstruction, Zimmer Powerstation |
| Function | string | Yes | 5 | — | — Range: —Length: 7 | Examples: Cooling Values: Cooling |
| Height | string | Yes | 6 | — | — Range: —Length: — | Examples: — Values: — |
| Informatio | string | Yes | 6 | — | — Range: —Length: — | Examples: — Values: — |
| Scale_Mini | integer | No | 0 | — | — Range: 60000 to 60000Length: — | Examples: 60000, 60000, 60000, 60000, 60000 Values: — |
| Source_Dat | string | No | 0 | — | — Range: —Length: 8 | Examples: 20071025, 20070101, 20050810, 20070101, 20090626 Values: 20050810, 20070101, 20071025, 20090626 |
| Source_Ind | string | No | 0 | — | — Range: —Length: 42 | Examples: US,U3,vectr,2007 USACE Nashville, US,U3,graph,USACE Louisville GIS, US,U3,SURVY,McClane Environmental Services, US,U3,graph,USACE Louisville GIS, US,U3,image,USACE LRL Imagery Values: US,U3,SURVY,McClane Environmental Services, US,U3,graph,USACE Louisville GIS, US,U3,image,USACE LRL Imagery, US,U3,vectr,2007 USACE Nashville |
| Source_D_1 | string | No | 0 | — | — Range: —Length: 12 | Examples: U37TN361.000, U37OH912.000, U37OH439.000, U37OH912.000, U37OH391.000 Values: U37OH391.000, U37OH439.000, U37OH912.000, U37TN361.000 |
| SHAPE_Leng | float | No | 0 | — | — Range: 0.002598076536745 to 0.004529763438453Length: — | Examples: 0.003390292954722, 0.003140897607921, 0.004529763438453, 0.002598076536745, 0.003633015915812 Values: — |
| SHAPE_Area | float | No | 0 | — | — Range: 3.705495e-7 to 0.0000015903035Length: — | Examples: 7.7430663e-07, 4.497645e-07, 1.5903035e-06, 3.705495e-07, 1.021514005e-06 Values: — |
| id | integer | No | 0 | — | — Range: 1 to 6Length: — | Examples: 6, 3, 2, 4, 1 Values: — |