My web presence
Monday, 10 January 2022
"So long and thanks for the maps"
Friday, 19 November 2021
Satellite data help for local housing issue
The #30DayMapChallenge Day 23 challenge is "GHSL data", here is the section in the story map that will chronicle the map challenge when it's finished:
Global Human Settlement for Northstowe controversial development NW of Cambridge UK, monitoring housing probability (GHS-BUILT-S2, 2018) and housing footprint (GHSL-ESM, 2015) against Esri 2020 Land Cover map extract with OpenStreetMap detailed base-map. Various blended overlays 'bake' the layers into a screen pattern allowing to compare and contrast past built areas vs. currently probably built against submissions.
Tuesday, 19 October 2021
More map art
A few years ago I used Charlie Frye's online lesson Explore future climate projections to learn how to use NetCDF and map temperature regimes - it's shown below in Patterson & Savaric's Equal Earth Projection. It became the basis for carbon emissions map just updated in the last blog post.
Wednesday, 13 October 2021
Carbon emissions reloaded
[ Updates: watch the updated bubble map video wrapping this all up at the bottom! ]
Late 2019 I wrote in A tale of two maps:
LSE’s Leslie Sklair asked me recently to produce carbon emission snapshots for an upcoming book. I had already mapped CDIAC’s CO2 emissions since 1751, I updated with BP Stat. Review current data, and I created in Esri web mapping platform some dynamic counterparts to Carbon Atlas’ static maps.
Those 2018 data were recently updated up to 2020, and further fuels listed by CDIAC were added to create this map, using Esri's improved web mapping:
Tuesday, 28 September 2021
Return East Anglia Peatlands to being carbon sinks
Community Engagement 1, ... 12, 13, 14, 15, 16, 17, 18, 19 & 20
[ Update 5: Community Interest Company re-engagement is here
Update 4: actual Fenlanders interviewed in this fab blog post
Update 3: peatland restoration by numbers, Indonesian example
Update 2: soil degradation and climate change masterclass, TEDtalk pointers
Update: added Why we should all be obsessed with Peatlands at the end of the story map below ]
No. 20! Isn't it fitting that chronicling East Anglia challenges & opportunities w.r.t. climate emergency - risk of flooding, sea level rise, vulnerability indices and now pandemic - uncovered the greatest opportunity yet: returning local peatlands from carbon emitters to original carbon sinks could dwarf any individual effort to mitigate CO2 emissions, currently the major driver of climate change.
Tuesday, 21 September 2021
Sea Level Rise Maps #reloaded
[ Update 2: at bottom is the comprehensive water web map that followed this...
Update 1: near the end of the story map, see how you can style your own DEM tiles ]
East Anglia Flood Defences Final showcased in a story map the entire flooding infrastructure framework for the region, both from rising sea levels and risk of flooding, complete w flood defence infrastructure.
Online discussions in the wake of the IPCC 2021 report broadened that scope back to an original posting almost two years ago Sea level rise models show ins&outs of climate change science. Here is that update expanding to England and NW Europe, wrapping in all the lessons learned along the way.
Monday, 13 September 2021
'Emo' vs. 'Goth' map looks
Recently updated this story map Maps like 3D Prints: Emo or goth? A map tour of special effects - adding to existing Ice Mountain hillshade style (augmented with Misting - the Emo part), a Sunrise Hack (in fact more like sunset - the Goth part) - all John Nelson's on Esri Living Atlas Terrain layers.
Monday, 30 August 2021
"Start me up" reloaded
[ Update: watch this creepy reprise by Rolling Stones & Boston Dynamics on the 40th anniversary of the Tattoo You album ]
The 25th anniversary of Win95 launch reminded me of the cringy launch party livestreamed where I was then in Calgary. What struck me was in Rolling Stones' lyrics including "you make grown men cry" in the launch party was clipped in later adverts...
Tuesday, 10 August 2021
"With a little help from my friends", Part II
New how-to
Part I showed how a map of DEFRA open data can help situational awareness for a West Midlands XR event. Having done a sea level rise and risk of flooding map for the Thames River valley near London last year, I redid one now with the lessons learned in the interval. The previous Sea Level Rise map from Open Data was rather onerous: I streamlined the process to simply load free & open data with only GIS styling; the resulting Build your own can be replicated on other GIS with listed data sources.
Wednesday, 28 July 2021
Unlocking Open Data from a legacy site
In the process of looking at land cover per previous post, I found Natural England's Natural Capital Atlas - their story map encouraged me to enter EsriUK's latest competition - their Esri dataset is accompanied by ample documentation under data.gov. To save us reverting to ArcMap, let's use the provided layer files and a file geodatabase in three simple steps to map our own region on ArcGIS Pro.