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Tammilehto.Ppt [Lecture Seule] GIS for Dissemination of Census DATA Marja Tammilehto-Luode, Senior Adviser, Population Statistics 07/12/00 Presentation n What to offer and to whom n Maps (GIS and Statistics) as value-added products -examples -GIS on internet n Spatial analysis n Conclusions 07/12/00 [2] GIS and Statistics Producer /Statistical offices Users /Customers n Data n Advanced GIS users n Software and hardware n Statisticians n Know-how n Data users with minor experience in GIS or statistics 07/12/00 [3] GIS data Statistical data Geographical data n Geo-coded by n Raster- or vector-formats -area codes n pictures or digital formats for -area names processing -map co-ordinates n Boundaries of statistical area n Organised by geo-codes in their own column n Other map data for -background n relevant format -to guide, directions n data protected -measuring distances -locational analysis joinable to statistical data n joinable to geographical data 07/12/00 [4] GIS software Producers Customers n Customised applications n Low-end users n Excel - Datamap, SuperStar - SuperMap n Statisticians n ArcView - MapInfo n ArcInfo... n High-end users /spatial analysis 07/12/00 [5] GIS know-how in statistical offices to promote the use of GIS in-house to promote use of GIS and statistics among customers 1) data services from raw data to refined products 2) statistical thematic maps 3) boundaries of statistical areas 4) products including mapping interface 5) spatial analysis 6) GI services …. 07/12/00 [6] Database Talousarvio Menot 1990 1991 1992 1993 1994 1995 1996 1997 1998 07/12/00 [7] NUTS classification in Finland u NUTS 1, Manner-Suomi and Ahvenanmaa u NUTS 2, Major regions ( 6) u NUTS 3, Regions (20) u NUTS 4, Sub regional units (85) u NUTS 5, Municipalities (452) 07/12/00 [8] Belgium 45 NUTS3-areas 07/12/00 [9] Finland 20 NUTS3-areas Elimäki municipality and its subregions 07/12/00 [10] The Metropolitan Helsinki Data and digital boundaries by municipalities postal code areas grids squares Espoo Vantaa Kauniainen Helsinki 07/12/00 [11] Population density by municipalities 07/12/00 [12] 07/12/00 [13] 07/12/00 [14] Selection within 1000 m Niipperi Malminkartano Suur-Kauniainen Jobs in hotels and restaurants Laajalahti Ruskeasuo uklahti near Tapiola in 1996 Mankkaa Taka-Töölö Tapiola Kaitaa Laajalahti Lauttasaari Suomenli Espoonlahti nkkaa Sum = 301 jobs Municipality Railways Tapiola Main roads Water Hotels and restaurants -96 0 - 9 Lautta 10 - 49 50 - 99 100 - 249 250 - 630N 07/12/00W [15] E Time-distances to the centre of Oulu by a car 07/12/00 [16] Medium purchasing power /household 07/12/00 [17] 07/12/00 [18] Products n Election Map Service n TeemaCD n SuomiCD for ArcView and MapInfo 07/12/00 [19] TeemaCD Regional statistics on maps n Statistical product in CD-ROM form n Consists of a regional database, geographic information maps and a software program n A quick and visual approach to query, search and compare regional statistical data n Easy to change variables and regional levels n Thematic maps, business graphics and statistical tables in use at the same time 07/12/00 [20] 07/12/00 [21] GIS on Internet ? n Picture files (thematic maps, boundary maps, index maps) n Data service n Map service (downloadable digital boundaries) n Integrated data and map service 07/12/00 [22] PC-Axis dataserver PX-Web Census statistical tables Census Handbook Census Maps 07/12/00 [23] Pilot product for mapping interface on internet Election map service n Results of the elections in 1999-2000 (4 different elections) n hundreds of maps and a great number of tables n updating right after polls closed : 2-3 updating in 1-5 hours n results on different regional levels: whole country, constituencies, municipalities, polling station areas n downloadable printouts (PDF, PS) n in three languages 07/12/00 [24] Updated election results on the Internet 07/12/00 [25] 07/12/00 [26] 07/12/00 [27] Election results map service; technical solution Firewall of Kartat.stat.fi& Stat. Finland Customers Internet map server Contacts to service Request Data as to www-server sequential files ODBC- Solid connection Vaali99.exe MapObjects Microsoft Web Engine IMS ISAPI- IIS-server connection PostScript GhostScript Adobe Acrobat Writer Driver 07/12/00 [28] Internet services n Census Online Service: http://www.stat.fi/census2000 n Election Maps on the Internet: www.kartat.stat.fi/ 07/12/00 [29] Spatial analysis by grid data n statistics by grids - geographical identifier is a map co- ordinate of a lower left corner of the square ( or a grid net) n independent from political or administrative areas n stable - areas do not change n evenly distributed - areas comparable n flexible (scalability, portability) n valuable from micro to macro analysis n absolute values feasible (on thematic maps) n GIS tools applicable 07/12/00 [30] Grids - statistics by grids - geographicalH E identifier L S Iis aN map K coordinate I of a lower left corner of the square - not dependentFinlandia on Hall administrative areas - saatavana v. 1970 väestölaskennasta lähtien Population per 500 m x 500 m grid - grid size: 1 km x 1 km, 500 m x 500 m, 250 m x 1250to 499 m, … 500 to 1 999 2 000 to 4 999 - over 100 000 inhabited 1 km x 1 km -grids in Finland5 000 or more Population per 500 m x 500 m grid 1 to 499 07/12/00 [31] Remote areas noninhabited less than 500 inhabitants within distance of 10 km 07/12/00 [32] The threat of depopulation by sub-regional unit Based on population 1998 2 Based on grids ... The km -grids where the youngest inhabitant is aged 49 or over as 2 a proportion of all inhabited km -grids in 1998 4.9 - 11.9 12.0 - 15.9 Rovaniemi 16.0 - 18.9 19.0 - 29.2 Oulu Kajaani Kokkola Vaasa Kuopio Seinäjoki Joensuu Jyväskylä Mikkeli Pori Tampere Hämeenlinna Lappeenranta Lahti Kouvola Turku Helsinki Maarian- hamina 07/12/00 [33] Residential areas divided, based on the factor solution obtained in the grouping analysis -middle class -low income -urban lifestyle -wealthy 07/12/00 [34] 07/12/00 [35] Conclusions n GIS a part of a production of statistics - not only extra services n data services from raw data to refined products n also customers who use GIS themselves n from data products to customised services n internet -might need new production -, dissemination - and pricing models n confidentiality important -new concerns with GIS, electronic data, multidimensional tables, internet, - flexible services 07/12/00 [36].
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