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Drainage network

General description

Technical description

General description

GeoDataset name: Drainage network

This dataset is an excerpt from the Digital Chart of the World and was prepared by Grid Arendal, Norway, as part of INSROP Project I.3.1 in 1994. The dataset is in scale 1:1 mill. See http://www.maproom.psu.edu/dcw/ for more information about the Digital Chart of the World.

As PC capability was more restricted when the dataset was prepared it was split into several parts. The parts are numbered from 1 to 7 and includes areas as follows:

1: between 65°N and 85°N and from 50°E to 65°E.

2: between 65°N and 85°N and from 65°E to 90°E.

3: between 70°N and 85°N and from 90°E to 115°E.

4: between 60°N and 85°N and from 115°E to 135°E.

5: between 70°N and 85°N and from 135°E to 155°E.

6: between 65°N and 85°N and from 155°E to 175°E.

7: between 65°N and 90°N and from 175°E to 170°W.

Technical description

Coverage name: dnnet1

Path: <NSR_DATA>\basecart\dcw_1

GeoDataset type: ARC/INFO coverage with PolyLine and Polygon features.

Coordinate system: Latitude/longitude in decimal degrees

Polyline features

* Drainage network

5401 PolyLines, 4 descriptive fields.

Fields: [<Name>] -- <Alias> (type of field)

[Dnnet1#] -- "Dnnet1#" (Numeric, -1 decimals)

[Dnnet1-id] -- "Dnnet1-id" (Numeric, -1 decimals)

[Dnlntype] -- "Drainage Network line type" (Numeric, no decimals)

[Dnlnstat] -- "Drainage Network line status" (Numeric, no decimals)

Polygon features

* Drainage network

1537 Polygons, 3 descriptive fields.

Fields: [<Name>] -- <Alias> (type of field)

[Dnnet1#] -- "Dnnet1#" (Numeric, -1 decimals)

[Dnnet1-id] -- "Dnnet1-id" (Numeric, -1 decimals)

[Dnpytype] -- "Drainage Network polygon type" (Numeric, no decimals)