METADATA FILE

I.  General description of data set
-----------------------------------

Name
	Coastline for Baltic Sea drainage basin region

Geographic Level
	Regional

Specific Area
	Baltic Sea drainage basin region

Lat/Long Region Boundaries
	NW-X:           0-E     ,       SW-X:           0-E
	NW-Y:           75-N    ,       SW-Y:           45-N
	SE-X:           40-E    ,       NE-X:           40-E
	SE-Y:           45-N    ,       NE-Y:           75-N

Infoterra Keyword(s)
	Coastal areas (14226)
	Archipelagos (14213)

Other Keyword(s)
	Land/sea interface, coastline, shoreline

Primary Data Acquisition Period
	Start Date: 1981
	End Date: 1992

Supplier
	GRID-Arendal. PO Box 1602, Myrene. N-4801 Arendal, Norway.

Contributor
	GRID-Arendal. PO Box 1602, Myrene. N-4801 Arendal, Norway.

Publication Reference
	Langaas, S., Sweitzer, J., and Barrette, J. 1995.  A Baltic Sea 
		Drainage Basin GIS Database for Environmental Description 
		and Analysis.  Technical Report. GRID-Arendal.
   
	Langaas, S. 1993.  Some Georeferenced Data Sets for use within 
		Sub-project 1; Land Use and Ecological Carrying Capacity, 
		of the Baltic Drainage Basin Project.  Technical Note. 
		GRID-Arendal. 10 pages + apps.

	Sweitzer, J., Langaas, S., and Folke, C. 1995.  Land Use and 
		Population Density in the Baltic Sea Drainage Basin: A GIS 
		database. Accepted by AMBIO.

Documentation (overview)
		The Land and Ocean (coastline) coverage was generated simply
	to provide users a database layer that will enable them to extract
	additional information when used in conjunction with other database
	layers.  The Land and Ocean coverage is a subset of the PONET 
	Political and Oceans data layer produced by ESRI as one of the 
	Digital Chart of the World (DCW) data layers.  PONET is a 
	1:1,000,000 scale vector polygon ARC/INFO coverage.
		The Land and Ocean coverage was generated by reselecting
	on the item called Popytype from the DCW PONET data layer.  
	Popytype value 1 is coded as land and values 2 - 5 are coded as
	ocean.
		The Ocean and Land vector coverage was converted into an
	IDRISI image file via DLG format.  The IDRISI LND_OCN image file
	has a 500 meter cell size.  Due to the fact that positional
	accuracy is lost when converting the ARC/INFO vector Land and Ocean
	coverage into a grid with a 500 meter cell size, it was also 
	decided to provide an IDRISI vector line file of the coastline
	created from the ARC/INFO LND_OCN vector coverage.  The file is 
	called COAST.VEC.
	
	
************************************************************************
 Please refer to the Technical Report, `A Baltic Sea Drainage Basin GIS 
 Database for Environmental Description and Analysis', that is provided 
 with the Baltic Sea Drainage Basin Project data for a complete and 
 detailed explanation of database automation.
************************************************************************

Contact Person
	Sindre Langaas                          phone:  +46-8-16 20 00
	UNEP/GRID-Arendal                       fax:    +46-8-15 84 17
	c/o Dept. of Systems Ecology            e-mail: landgaas@grida.no
	Stockholm University                   
	s-106 91 Stockholm, Sweden
	
   

II.  Detailed description of data set (members)
-----------------------------------------------

Data set type
	IDRISI vector line file

Description
	COAST - Coastline data fro whole Baltic region

File Type/Size
	Integer/binary:  926 KB 

Access
	Free access, unrestricted

Copies (available sites)
	CD-ROM - being distributed by GRID-Arendal
	World Wide Web (WWW), GRID-Arendal
		URL:  http://www.grida.no/


III.  Technical information about raster data
---------------------------------------------

Cell Size
	Height: 500 meters
	Width:  500 meters

Number of Rows
	5200

Number of Columns
	4000

Projection Name
	Lambert Azimuthal Equal Area

Projection Parameters
	Units: meters
	Spheroid: International 1909
	Radius: 6,378,388
	Longitude of centre of projection: 20.00.00
	Latitude of centre of projection:  60.00.00
	False Easting: 0
	False Northing: 0
	
Projection boundaries
	Xmin: -1,000,000        Ymin: -1,300,000
	Xmax:  1,000,000        Ymax:  1,300,000