Hybrid solution in producing grid statistics Day 2, October, 24 / - - PowerPoint PPT Presentation

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Hybrid solution in producing grid statistics Day 2, October, 24 / - - PowerPoint PPT Presentation

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Hybrid solution in producing grid statistics Day 2, October, 24 / Established practices Work Session 1 Mrs. Irena DUDOVA Mr. Arslan AHMEDOV Day 2, October, 24 Established practices Work Session 1 1 - Population distribution of Bulgaria

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SLIDE 1
  • Mrs. Irena DUDOVA
  • Mr. Arslan AHMEDOV

Hybrid solution in producing grid statistics

Day 2, October, 24 / Established practices – Work Session 1

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Day 2, October, 24 Established practices – Work Session 1 1

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Day 2, October, 24 Established practices – Work Session 1 2

  • Population distribution of Bulgaria per 1 sq. km grid net - INSPIRE compliant
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Day 2, October, 24 Established practices – Work Session 1 3

VI. Analyze Test Validate VII. Disseminate V. Generate Population Grid IV. Harmonize III. Build Geocoding Framework II. Data Collection I. Specify Analyze Design

NOW

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Analyze

Day 2, October, 24 Established practices – Work Session 1 4

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Day 2, October, 24 Established practices – Work Session 1 5

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Day 2, October, 24 Established practices – Work Session 1 6

Dataset Type Coverage Coordinate systems Source

Census 2011 Statistical FULL BNSI Census Enumeration Areas Area-based PARTIAL 1970, Sofia, 1950 BNSI Grid 1 sq.km Area-based FULL ETRS89_LAEA Eurostat, EC Points of the addresses Point-based PARTIAL 1970, Sofia, 1950 Bulgarian Cadastral Agency Centroids of parcels Point-based PARTIAL 1970, Sofia, 1950 Bulgarian Cadastral Agency Borders of Administrative Units Area-based FULL WGS 1984 35N Ministry of Agriculture and Foods High resolution populated and build-up areas with land use and settlement codes Area-based PARTIAL (~95%) WGS 1984 35N Ministry of Agriculture and Foods Urban Atlas Area-based PARTIAL ETRS89_LAEA DG Regional and Urban Policy, EC

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Day 2, October, 24 Established practices – Work Session 1 7

Polygons of Populated Areas of the settlements Urban Atlas Polygons Points of the addresses Points of the parcels

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Day 2, October, 24 Established practices – Work Session 1 8

70586 03277 0034A

Districts Municipalities Populated Areas

  • f the settlements

Addresses Localization Units

(Street, Boulevard, Square, Dwelling Complex, Neighborhood…)

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SLIDE 10

Day 2, October, 24 Established practices – Work Session 1 8

70586 03277 0034A

Districts Municipalities Localization Units

(Street, Boulevard, Square, Dwelling Complex, Neighborhood…)

Addresses Populated Areas

  • f the settlements
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SLIDE 11

Day 2, October, 24 Established practices – Work Session 1 9

Map Features Statistical dataset

Addresses Street, Boulevard, Square, Dwelling Complex, Neighborhood… Populated places/ Settlements Municipalities Districts Identifier codes Geometries Reference data

District codes (UCATTU*) Municipality codes (UCATTU*) Settlement codes (UCATTU*) National Classification of Localization Units National Classification

  • f Addresses

Statistical data

Statistics Geography

Unified Classification of Administrative-Territorial and Territorial Units

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Day 2, October, 24 Established practices – Work Session 1 10

Census dataset Aggregated by building

Matching Census with geocoded address mass

Geocoded Address Collection

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Matching Census with geocoded address mass

Geocoded Address Collection Match address Census dataset Aggregated by building

Day 2, October, 24 Established practices – Work Session 1 10

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Matching Census with geocoded address mass

Census dataset Aggregated by building Geocoded census buildings to address points Statistics aggregated by grids

Day 2, October, 24 Established practices – Work Session 1 10

Geocoded Address Collection

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Matching Census with geocoded address mass Additional steps in Aggregation phase

(Available census tracts geometries that are inside grid geometries)

Geocoded census buildings to address points Census dataset Aggregated by building Geometries of census tracts Statistics aggregated by grids Statistics aggregated by grids

Day 2, October, 24 Established practices – Work Session 1 10

Geocoded Address Collection

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Matching Census with geocoded address mass Additional steps in Aggregation phase

(Available census tracts geometries that are inside grid geometries)

Geocoded census buildings to address points Census dataset Aggregated by building Geometries of census tracts Statistics aggregated by grids Statistics aggregated by grids

Day 2, October, 24 Established practices – Work Session 1 10

Geocoded Address Collection

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Statistics aggregated by grids

Day 2, October, 24 Established practices – Work Session 1 10

Result: Grid generated with Aggregation techniques

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Day 2, October, 24 Established practices – Work Session 1 11

Matching Census “objects” with map feature of the “object”

Census dataset Aggregated by “object”

Binary Dasymetric (Populated Areas/Unpopulated Areas) Assuming uniform density inside the “object”

Urban Atlas Populated Areas

  • f the settlements

Localization Units

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Matching Census “objects” with map feature of the “object”

Day 2, October, 24 Established practices – Work Session 1 11 Binary Dasymetric (Populated Areas/Unpopulated Areas) Assuming uniform density inside the “object”

Census dataset Aggregated by “object” Urban Atlas Populated Areas

  • f the settlements

Localization Units

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Map features

  • f “the objects”

Disaggregatation by grids

Matching Census “objects” with map feature of the “object”

Day 2, October, 24 Established practices – Work Session 1 11 Binary Dasymetric (Populated Areas/Unpopulated Areas) Assuming uniform density inside the “object”

Census dataset Aggregated by “object” Urban Atlas Populated Areas

  • f the settlements

Localization Units

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Match

  • bjects

Map features

  • f “the objects”

Disaggregatation by grids

Matching Census “objects” with map feature of the “object”

Day 2, October, 24 Established practices – Work Session 1 11 Binary Dasymetric (Populated Areas/Unpopulated Areas) Assuming uniform density inside the “object”

Census dataset Aggregated by “object” Urban Atlas Populated Areas

  • f the settlements

Localization Units

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Map features

  • f “the objects”

Disaggregatation by grids

Matching Census “objects” with map feature of the “object”

Day 2, October, 24 Established practices – Work Session 1 11 Binary Dasymetric (Populated Areas/Unpopulated Areas) Assuming uniform density inside the “object”

Census dataset Aggregated by “object” Urban Atlas Populated Areas

  • f the settlements

Localization Units

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Map features

  • f “the objects”

Disaggregatation by grids

Matching Census “objects” with map feature of the “object”

Day 2, October, 24 Established practices – Work Session 1 11 Binary Dasymetric (Populated Areas/Unpopulated Areas) Assuming uniform density inside the “object”

Census dataset Aggregated by “object” Urban Atlas Populated Areas

  • f the settlements

Localization Units

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Map features

  • f “the objects”

Disaggregatation by grids

Matching Census “objects” with map feature of the “object”

Day 2, October, 24 Established practices – Work Session 1 11 Binary Dasymetric (Populated Areas/Unpopulated Areas) Assuming uniform density inside the “object”

Census dataset Aggregated by “object” Urban Atlas Populated Areas

  • f the settlements

Localization Units

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SLIDE 25

Map features

  • f “the objects”

Disaggregatation by grids

Matching Census “objects” with map feature of the “object”

Day 2, October, 24 Established practices – Work Session 1 11 Binary Dasymetric (Populated Areas/Unpopulated Areas) Assuming uniform density inside the “object”

Census dataset Aggregated by “object” Urban Atlas Populated Areas

  • f the settlements

Localization Units

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Result: Grid generated with Disaggregation technique

Day 2, October, 24 Established practices – Work Session 1 11

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Day 2, October, 24 Established practices – Work Session 1 12

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Day 2, October, 24 Established practices – Work Session 1 12

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Day 2, October, 24 Established practices – Work Session 1 13

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Day 2, October, 24 Established practices – Work Session 1 13

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METHODS SETTLEMENTS COVERED BY YHE METHOD POPULATION DISTRIBUTED BY THE METHOD AGREGATION Address Points + census tracts 569 Settlements Points 361 DISAGGREGATION Localization Units Binary 3 Urban Atlas Binary 376 Populated and Build-up Areas Binary 4562 Total Population of Bulgaria according Census 2011

Day 2, October, 24 Established practices – Work Session 1 14 559 618 579 1176 651 509 303 225 142 557 100 200 300 400 500 600 700 800 900 1000 1100 1200 1 2 3 4 5 6 7 8 9 10+ Number of settlements Grid cells

Number of settlements by number of grid cells they cover

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Day 2, October, 24 Established practices – Work Session 1 15

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Day 2, October, 24 Established practices – Work Session 1 16

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  • Mr. Arslan AHMEDOV
  • Mrs. Irena DUDOVA

Day 2, October, 24 Established practices – Work Session 1 17

E-mail: Idudova@nsi.bg E-mail: aahmedov@nsi.bg

Thank you for your attention!