[Update: a fascinating firsthand report from the discoverers posted on Russell Potter's excellent blog.]
A 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 as for example in this Story Map.
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Saturday, 28 April 2018
Thursday, 29 March 2018
Historic climate data revisited - 2 - circum-Arctic
[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 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:
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 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 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?
Update 1: 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?
Labels:
ArcGIS Online,
AWS,
CC BY-SA,
CLIWOC,
ESRI,
MapCentia,
NPI,
open data,
QGIS,
Quantarctica
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.
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:
Labels:
3D,
conflation,
ESRI,
geodata,
Gulf of Mexico,
seismic,
subsurface,
webscene,
wells
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