Global deforestation through time. Presentation at ESA

Global&Deforesta-on&through&Time&

Big$Data$Meets$Scalable$Visualiza2ons$|$Javier$de$la$Torre$;$CartoDB$

MAKE BEAUTIFUL MAPS - BUILD GEOSPATIAL APPLICATIONS - LET YOU GAIN INSIGHT FROM YOUR DATA

http://en.wikipedia.org/wiki/Bakun_Dam

Geo-temporal visualizationsCartoDB and Torque

Datacubes•BI/Finance analysis•multidimensional•summary data•binned variables

Friday, 28 September 12

Aka. Hypercubes/OLAP cubes (Make city people sound like they're lawnmowerman)

Friday, 28 September 12

WITH%hgrid%%%%%%AS%(SELECT%Cdb_rectanglegrid(Cdb_xyz_extent(8,%12,%5),%%%%%%%%%%%%%%%%%Cdb_xyz_resolution(5)%*%4,%%%%%%%%%%%%%%%%%%%%%%%%%%%%Cdb_xyz_resolution(5)%*%4)%AS%cell)%SELECT%x,%%%%%%%%y,%%%%%%%%Array_agg(c)%vals,%%%%%%%%Array_agg(d)%dates%FROM%%%(SELECT%St_xmax(hgrid.cell)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%x,%%%%%%%%%%%%%%%%St_ymax(hgrid.cell)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%y,%%%%%%%%%%%%%%%%Count(i.cartodb_id)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%c,%%%%%%%%%%%%%%%%Floor((%Date_part('epoch',%built)%Q%Q10418716800%)%/%32837875)%d%%%%%%%%%FROM%%%hgrid,%%%%%%%%%%%%%%%%us_po_offices%i%%%%%%%%%WHERE%%St_intersects(i.the_geom_webmercator,%hgrid.cell)%%%%%%%%%GROUP%%BY%hgrid.cell,%%%%%%%%%%%%%%%%%%%Floor((%Date_part('epoch',%built)%Q%Q10418716800%)%/%32837875)%%%%%%%%)%f%GROUP%%BY%x,%%%%%%%%%%%y

Friday, 28 September 12

{%%rows:%[%%{%%%%x:%0,%%%%y:%0,%%%%vals:%[2],%%%%dates:%[457]%%},%%{%%%%x:%1,%%%%y:%0,%%%%vals:%[1,1,4],%%%%dates:%[2,3,4]%%%%}%%]}

Friday, 28 September 12

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100

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3mb 70mb 300mb1.5

21.2

300

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Raw Datacube

Payload sizes

Friday, 28 September 12

Geo-temporal visualizations

We have defined a format to transfer data cube “data” to the browser.

One or many dimensions: use of coded images or JSON

Geo-temporal visualizations and data cubes are a greatway of understanding how spatial data changes

We can handle millions of vector data or processed rasters

Global&Deforesta-on&through&Time&

Big$Data$Meets$Scalable$Visualiza2ons$|$Javier$de$la$Torre$;$CartoDB$