Thursday, 29 March 2018

Historic climate data revisited, circum-Arctic

[Note: watch this story map on follow-on class materials the last two blogposts generated

Go also to para.5 of 1000 GIS applications ]

Following on the Antarctic blogpost, I took my lessons-learned to the antipodes for these reasons:
click to enlarge (full caption)
  1. Scott Polar Research Institute in my home town has fabulous resources such as this
  2. Remembering the Franklin Expedition chronicles events near where I spent a summer
  3. seen also in Greenwich and Ottawa in addition to materials at British Library (above)  
  4. ESRI recently boosted Arctic resources online in a base map, story map and other support

Map

Although as mentioned all the CLIWOC are on my AWS private stack, pulling data "North of 50" via WFS as described before yields all non-key data as text! So I simply recreated the same from my original archive. The result is pretty arresting using the recently-updated Arctic Ocean basemap:

click to enlarge

Web

Where this map really comes into its own, is on ArcGIS Online, where not only the basemap comes from as well as other resources mentioned:

click to enlarge, or view it 

Say you add Observed and Predicted Climate Shift data, you see that they have no data over the oceans - CLIWOC historic data has 0% overlap with such climate data - as Esri Chief Scientist Dawn Wright quipped: the world's oceans comprise 75% of the Earth's surface, yet they yield only 5% of data... though that is improving here and here.

click to enlarge

As I said in my previous post "we must avail ourselves of as much data as we can" - this is a prime example in a key area not only of climate change but also of new geopolitics and maps - such as Maritime Boundary and Exclusive Economic Zones:

click to enlarge or grab it

Wednesday, 21 March 2018

Historic climate data revisited, circum-Antarctic

[Update: please see a mirror project in the Arctic here.]

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]".

Friday, 2 March 2018

Development of Spatial Grids and...

The Association for Geographic Information Geocom2017 gathered at the Geographical Society in London late last October. Its Lightning Talks showcased new ideas and businesses. I was invited there to challenge attendees "to think about the development of spatial grids and the structure of spatial data models". The presentation itself and thank-you letter were followed by a short report in GIS Professional scanned here:

Tuesday, 20 February 2018

GDPR revisited

I already wrote about GDPR from the perspective of helping users get started with using Mind Maps. The presentation wraps up with further help from LINQ I partnered with.

Thursday, 18 January 2018

My adventure with Storm Fionn

As Storm Fionn wrought chaos in England and Cambridge, here's my adventure in returning a rental car this morning.

Saturday, 23 December 2017

Mind maps for GDPR

[Update: see a revisit of this topic]

General Data Protection Regulation will come to European Union five months from Christmas! You will have read of it no doubt, if not, links are in presentation below: Up to Slide 10 is a simple set of tools - mind maps - to get started on this complex process; after that is a suggestion for further help.

Tuesday, 12 December 2017

Vectors are your friend, Part III

Esri just updated its World Vector Basemaps (v.2). I updated below the notoriously complex and details Aalan Archipelago offshore Turku, Finland. I contrasted in this blog 4½ years ago posting the GSHHG world vector dataset in giscloud.com, a web vector mapping system, and ArcGIS Online, richer in data but then in raster. See an OpenStreetMap backdrop earlier in my companion blog.

Monday, 11 December 2017

GeoHipster Calendar: 2018

This is my third Calendar entry from the most excellent Geohipster spearheaded by @atanas@billdollins and @gletham - the inaugural 2014 and the 2015 can be seen here - I missed last year but I told them:

Tuesday, 26 September 2017

Free tools & data to predict hurricanes

Four weeks ago I blogged here about the availability of open data, posting it on the open web and its potential social impact. Two weeks ago I blogged here too about tracking three hurricanes in the Caribbean via the brilliant but closed earth.nullschool.net. In between I compared & contrasted open & closed regimes on my Medium channel... and that 2½ yrs after a previous blog here on same!