DDL Global Urban Boundaries ADM1 Splits

Administrative level-1 splits of parent DDL urban agglomeration polygons.

Schema

Name	Type	Units	Description
`id`	`string`	—	DDL ADM1 split boundary identifier.
`parent_id`	`string`	—	Parent DDL urban agglomeration identifier.
`adm_id`	`string`	—	Source GADM ADM1 identifier used to split the parent boundary.
`name`	`string`	—	Administrative split name.
`population`	`int64`	people	Estimated population within the split boundary.
`alpha3`	`string`	—	ISO 3166-1 alpha-3 country code.
`area`	`float64`	m²	Geometry area in square meters.
`geometry`	`geometry`	—	ADM1 split boundary polygon. Coordinate system: EPSG:4326.