Saturday, 8 September 2018

A fond farewell to two old friends

Over seven years after starting to post on arcgis.com and almost five years after posting mega-datasets on GeoCloud2 via AWS, I have to seriously reconsider my investment in web data. I already mentioned my new direction two posts ago, and now stood down my AWS instance - thanks @mhoegh for his help on Mapcentia - and I will let my arcgis.com account lapse next May, five years after it was created (I already rationalised my Esri accounts, hence the two year gap with opener).

Do not despair however, I have posted data-sets on Dropbox - they're all CC BY-SA 3.0 - and posted animations on YouTube as follows.

Dropbox name Corresponding blog
CLIWOC  ................................................... Ant/Arctic polar maps
2018PPDMmap  ......................................... COTS petrodata mapping
2014PPDMopen  ........................................ FOSS petrodata mapping
MedFenWGS84  ......................................... Medieval Fenlands GIS
2016beehive  ............................................... Hexagon bin maps
2008GISmodelling  .................................... Model Builder classes
YouTube name Corresponding blog
Beechey Island Google Earth  .................... Imagery & topography
Gulf of Mexico Salt Dome Field  ............... Esri 3D conflation
Gulf of Mexico Wells Causeway  ............... Hexagon bin maps
Hurricane Harvey  ...................................... Flood mapping
Kuwait Oilspill Response Model  .............. GIS for oil spill modelling
Kuwaiti oil spill model  .............................. GIS for oil spill modelling
Where in the World is Andrew  .................. Time lapse animation
XYcliwoc_.avi  ........................................... Historic tall ships sailings
Cambs. Surf. Geol. Time.avi  ..................... East Anglia historic geology

Let me leave you with my GeoHipster Calendar gallery for inaugural 2015, 2016 and 2018 - click on images to enlarge - thank y'all for the exposure:

2018 Live WebScene 

2016 ‘Hexagon binning, US Gulf of Mexico oilwells’

2015 ‘CLIWOC ships captains logs for 1750-1774 time slice’

And to complete the smorgasbord, here are my previous recaps:   

Monday, 20 August 2018

Historic climate data revisited - 4 - polar is POpuLAR

[Update: Part 5 will be the last instalment as mentioned at the bottom of this blog-post]

Having explored polar maps here, here and here, was it ever a delight to find one of the earliest maps in that same projection! In This Is the World's Largest and Oldest Map, Culture Trip report how David Rumsey recreated a digital copy of a 1587 map from Milan in no less than 60 pieces:

Wednesday, 8 August 2018

Comparative economics England & Wales since the Middle Ages

My latest post of the 7-part series Toward a rational View of Society on my personal Medium channel, follows my previous maps here of medieval & later drainage of the East Anglia Fens.I expanded a little on the economics in the concluding paragraph in this short presentation.

More polar 'map porn'

[I stole the second half of the title from Reddit group of same name.]

From previous blog posts on Arctic polar maps here and here, let me share two more maps found via my favourite Facebook group Remembering the Franklin Expedition.

Thursday, 19 July 2018

Historic climate data revisited - 3 - circum-Arctic update

[Update: Part 4 provides a further update on platforms available to map polar data]

In my previous blog, how many layers can be combined in an arresting polar Arctic view. They show the almost zero overlap of historic and current weather and climatic data. They herald the importance of oceanic climate data going back before 1880, when any weather data get scarce.

Saturday, 28 April 2018

"Horses for courses", part II

previous post here contrasted full professional workflows for petroleum geology students, with very simple analytical tools for a businessman looking to ascertain population density. As my subsequent posts show, I have an interest in Antarctic and Arctic maps, history and climate; you can see my case against the popular web Mercator for polar regions in this map story.

Thursday, 29 March 2018

Historic climate data revisited - 2 - circum-Arctic

[Note: Part 3 adds World Port Index data compared to historic Gazetteer
Follow-on class materials the last two blogposts generated are posted here.
Go also to section 5: Arctic / Antarctica GIS application, of 1000 GIS applications ]

Following on the Antarctic blogpost, I took my lessons-learned to the antipodes for these reasons:

Wednesday, 21 March 2018

Historic climate data revisited - 1 - circum-Antarctic

[Update: please see a mirror project for the Arctic in Part 2.]

With ongoing debates whether Antarctic ice in increasing or not, and its effect on climate change, we must avail ourselves of as much data as we can. If historic climate data is at hand, not only do they get scarcer going farther back, but 1880 also marks a time prior to which their reliability falls off.

So having mapped climate data off tall ships captains logs from 1750 to 1850, I wondered how far south they sailed, and how much they augmented historic climate data around the Antarctic?

Friday, 16 March 2018

"Qui peut le plus, peut le moins" or "Horses for courses"

These quips mean that, while we may have great tools for complex workflows, such as Mapping Well Data I'll present as AAPG Visiting Geoscientist in Hungary next month, sometimes it's better to pare it down to its simplest form, such as for a friend "looking to map addresses to [a French geographic subdivision]".