First Workshop on European Reference Grids (EuroGrid 2003): Ispra, Italy 27th-29th October 2003 Aggregation and disaggregation of statistics

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First Workshop on European Reference Grids
(EuroGrid 2003) Ispra, Italy 27th-29th October
2003Aggregation and disaggregation of statistics

• Statistics Denmark
• Erik Sommer

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Presentation - Content

• Building a national square grid
• Disclosure of statistical data
• Supply and demand
• Selling statistical data
• Partnerships
• Integration with other countries
• Future work

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GRIDdata - CLUSTERdata
København, Danmark
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Danish National Grid 5 grid sizes
Size Name/Net Grid ID Colour
100 km Overview KN100kmDK Grey
10 km Place name KN10kmDK Green
1 km Basic KN1kmDK Red
250 m 250 meter KN250mDK Orange
100 m Hectare KN100mDK Blue
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1 km- og 100 m-grid
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Grid ID
Formel Prefix_Str(Div(N/f))_Str(Div(E/f))
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Specification National Square Grid

• UTM projection, zone 32
• Datum used is EUREF 89
• All cell names must refer to the original
  UTM32\EUREF89 projection to ensure standardized
  names.

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Building adresse/street entrance
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The key to griddata building address/street
entrance
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Placement of addresses calculated addresses
Formel Prefix_Str(Div(N/f))_Str(Div(E/f))
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Person Home Dwelling - Workplace
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Placement of addresses corrected addresses
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STATISTICAL INFORMATIONSYSTEM
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Guidelines for discloure of data
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Distribution of Households 100 x 100 meter 1.
January 2003, Denmark
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Distribution of Households 1x1 km 1. January
2003
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Building Block Number of households
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Options when clustering gridcells

• Proximity districts, tradearea required to be a
  neighbour
• Optimizing finding gridcells with equal value
  without necessarily being a neighbour

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• Optimizing

Finding gridcells with equal value without
necessarily being a neighbour.
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Input clustering cells
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OUTPUT Dataset for Clusters
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Selling statistical data

• National level
• Consumermarket
• Public sector
• Reserarch
• Selling directly or through partners

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Calculated addresses www.kms.dk

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Calculated addresses www.kms.dk

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Access to addresses in Denmark

• Calculated address coordinates
• www.kms.dk
• Improved access to public dataFrom 1. January
  2003 a number of public data can be used freely.
  State, counties and municiapalities have made an
  agreement giving access to different registers
  including Building Register Data (BBR) and
  X,Y-address coordinates
• www.ebst.dk/ejendom or www.ois.dk

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Conzoom online www.conzoom.net

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Nordic maps and griddata (Conzoom online)
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Nordic griddata online (Conzoom)
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Householdstype singles with no children
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Future work

• Access to addresses
• Access to statistical data
• Disclosure policy
• Dissemination
• Integration (grid, data, pricing and promotion)

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Access Statistical data

• Thank you for your attention
• For further information please contact
• Erik Sommer
• www.dst.dk/kvadratnet
• eso_at_dst.dk
• phone [phone]