Andrew Zolnai Blog

2024   update : 'They will flip': Earth's poles are shifting and it is not a good sign for life on our planet  I  previously  as...

[ Update: Part VI , more on geomagnetic reversals ] Parts I , II , III & IV  from March 2011 became relevant in a comment yesterday ...

I showed a couple of months ago  ways to post mega-datasets online without choking the system. This month OSGeoUK gave me the opportunity t...

The last 6 blog posts over the last 3 months chronicled the use of dynamic maps using time attribute - years for historic ship tracks and wi...

[ Update: climate data (wind speed & direction) have now been added in short & long posts ] I originally extracted CLIWOC ( CLI...

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...

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 d...

Satellite imagery has been around for almost as long as GIS, and the following may just make them so easy they finally gain momentum. The sa...

Time for reflection coming up to the anniversary of reconnecting with my current business partner David Lloyd to help oilelefant to market.

Chatting with local history buffs brought up amazing facts about climate change and sea level rise since the Middle Ages in East Anglia. One...