Map catalog page 4

My map catalog also works well to post new projects: added British Geological Survey web mapping services to East Anglia web map, in order to compare historic and current geology. The Snapshot format also give a variety of viewing options of the catalog.

iPad maps

Here is a small selection of mapping tools available on the iPad. Some are from the Appstore, others simply from the web. These are screen shots that I took for those (thanks my readers for how-to tips).

East Anglia Fenlands wrap-up

It may be time to run an overview, two years on this personal project on East Anglia, the last step of which was reviewed by socium.co.uk:

Even more temporal maps

I posted here my webmaps from the East Anglia Medieval Fenlands project. I have now posted these on arcgis.com for use in ESRI maps: Watch future posts on time-enabling this project, and adding geo-processing to further examine these derived data. Note also that ArcGIS is available for personal use an research for $100 worldwide now.

More temporal web maps

Here is last year's Fenlands mashup on 2nd gen. beta GisCloud.com (this data is also posted on the UK academic ShareGeo site and the data.gov.uk apps site):

Another Take on Climate Change, Part II

[Update 2: thanks Greg Cocks for this April 2019 update
Update 1: Part III, more on plate boundary earthquakes]

A year ago today I posted here on the Chilean 8.8 magnitude earthquake.... The recent earhtquakes and tsunamis in Japan and New Zealand, and China and Indonesia before that, truly indicate an increased rate of incidence in these catastrophies! Add to that the more frequent hurricanes and cyclones off the Gulf of Mexico and NE Australia, and fires or floods in N America, Australia and Europe, and we truly wonder what is going on really?

The Big Easy button

Building geoinfo from the ground up is patent in this Gov2.0 presentation on citizen-focussed geoweb at the Greater New Orleans Community Data Center toward sustainability in the Big Easy:

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:

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.

Another take on climate change

[ 2021 update: full twitter thread why "plume push" theory may be flawed

  2010 update: See follow-on Part II here ]

If the 8.8 magnitude Chilean quake may have shortened days by an infenitisimal amount late last month, it highlights the lesser-know fact that the earth wobbles on it axis, and that mass plate-tectonic movements are the result as well as the cause of earth tremors along plate boundaries below (may need to install Google Earth plug-in as indicated).

Webmaps, history, climate and geology

Chatting with local history buffs brought up amazing facts about climate change and sea level rise since the Middle Ages in East Anglia. One book's sketch map relates how the North Sea coastline differed from today, and how that affected Anglo-Saxon socio-economics there before and after the Norman conquest and the Domesday book.