Gathering clouds over the horizon, Part II

I posted earlier an example of a simple Google Map reading a list of Olympic cities - this was part of a list of Google and OpenLayer maps I built over the years on my old website - I also posted a nifty display of plate boundaries in Google Earth here. Following on the discussion of new web mappping (Part I of this post), I recreated both on giscloud.com to see how the two implementations compared.

UK electoral boundary changes

New UK Ordnance Survey OpenData Bounday Lines released this month, show changes compared with the original public release in April of October 2009 data. Both Electoral Division and Westminster Consituency boundaries are what you see in the BBC News or many other UK election maps on TV or online. Following yesterday's parliamentary and county council election results, one might ask:

Historic Fenlands Mashup

[See updates at bottom, and predecessors Medieval Fenlands GIS and Post-medieval Fenlands GIS]

Here is a mashup on giscloud.com of the geographic history of land cover and surface geology of East Anglia since Domesday based on:

Show me the money

That was my response to Peter Batty's call for comment on his GITA panel this week:

Post-medieval Fenlands GIS

Let's look at the geographic history of land cover and surface geology of East Anglia after the Civil War , based on Ordnance Survey OpenData and British Geological Survey web mapping services (WMS). My previous posting discussed H.C. Darby's historic & geographic economics of East Anglia Fenlands between the Domesday census and the Civil War.

Happy Earth Day, in a British roundabout way

A recent twittersation with @rollohome had me pull out these screen shots from Google Maps - it doesn't appear to give proper driving directions around complex British roundabouts - I thought this was a curious counterpoint for Earth Day, as we go round&round...

Medieval Fenlands GIS

[Update 5: see its latest reboot on a new community engagement project here
Update 4: Data on ShareGeoOpen is now on successor Edinburgh Datashare
Update 3: see subsequent story with Ordnance Survey and 1SpatialOnline validation
Update 2: see web mashup with later historic data  and more on data repositories
Update 1: see companion Post-medieval drainage of the Fens from same source]

The recent release of UK Ordnance Survey OpenData opened the opportunity to post H.C. Darby's data from The Medieval Fenland and The Drainage of the Fens of East Anglia in the eastern UK. And parishes are the geographic unit that remained constant since the Middle Ages.

A Tale of two approaches, part III

My previous posts here, here and here are summarised in today' reply to Matt Ball's excellent Spatial Sustain entry, What comes first, model-based design or integrated project workflows?

Trending oilelefant.com

My talks at FindingPetroleum and PPDM presented the impact of the new web in petroleum.

No such thing as a free lunch, part II

Addendum: Steven Feldman just posted an great summary on this.