Andrew Zolnai Blog

Here are the maps promised at the end of the last post  c/w description in that post:

[ Update: Part 5 will be the last installment as mentioned at the bottom of this blog-post ] Having explored polar maps here , here and...

[ Update: Part 4 provides a further update on platforms available to map polar data ] In my previous blog , how many layers can be combi...

[ Update: more data for the Arctic were found here and here when writing a paper Note:   Part 3 adds World Port Index data compared to ...

[ Update 2: this series has full CC BY-SA 3.0 class notes here Update 1: please see a mirror project for the Arctic in  Part 2 . ] With ...

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...

Earlier posts chronicled the history  even the beauty of historic shipping and climate data from CLIWOC. British, Dutch, French and Spanis...

I showed recently  how CLIWOC weather data from ships captains logs dating 1662 to 1885 totalled almost 1/2M points. It started with a 1/4M ...

[ Update1 : longhand version posted on my map catalog blog Update 2 : companion Slideshare  delves into technical issues] This is the end...

Last month related the stumbling blocks in posting too much data on arcgis.com - time animation pushed the limits of stock web service even...

Last month I reported on posting on arcgis.com some time-stamped, time-slider or time-aware maps - I showed my WhereIsAndrew map - I also m...

I tell people "I know just enough java to be dangerous", and it has served my well in my prior attempts logged in my old web page ...

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

Time-lapse GIS helps clear the clutter of a quarter million points of ship sailings from captain's logs from 1662 to 1855 re-posted last...

[rhymes with: Baaack in the USSR ] After a brief hiatus trying my hand outside ESRI, I'm baaack... posting maps on arcgis.com . Daniel S...

The FOSS4G conference early this month in Barcelona raised a host of issues as usual. One picked up by James Fee and Jo Cook 's blogs ...

It's a common geo-rant (thanks AGI'09 ) that metadata cause alternatively boredom or angst among geo-geeks - why? because we know ou...

My original posts are still here , and my professional website is here . By way of introduction, here are my original web maps: ArcGIS Explo...