Showing posts sorted by date for query sea level rise. Sort by relevance Show all posts
Showing posts sorted by date for query sea level rise. Sort by relevance Show all posts

Wednesday, 26 March 2025

Reposting stories from original website

This follows revisits & updates, while wrapping up my web presence lately: 
Aug. '24: A return to my roots
Oct. '24: "Where in the world...", updated
Oct. '24: Global sea level rise revisited
Oct. '24: Northwest Passage Reloaded
Nov. '24: Cumbria classic revisited...
Dec. '24: Exhuming my thesis area... & Jan. '25: update
Jan. '25: London Thames Barrier... & Feb. '25: update
Feb. '25: Beechey Island update
Feb. '25: East Anglia Peatlands revisited

 I re-posted a tiny protion of my original www.zolnai.ca, that went away with my old ISP: I created a new chronological blog of my life & work web posts from 1957 to 2001; it also describes the evolution of my websites over time. Here is the top portion to aizonline.blogspot.com


It's also linked as "prof. portfolios" at top right banner menu on this blog's desktop:


***

This wraps up a blog started 15½ yrs. ago  - deets in banner menu & sidebar index on desktop blog - as I move on in my life’s next phase… Thanks for reading!

Monday, 24 March 2025

A convesation with AI (long read)

Shakira YouTube channel posted this video #LMYNLWorldTourCDMX: 


How a confusion between CDMX (Ciudad Mexico) and MCDX (1410 in Roman numerals) lead to a far-ranging AI chat thru culture, geography, career and climate activism. MSFT Copilot (here) transcript (Italics: me, regular: Copilot):

Wednesday, 5 February 2025

London Thames Barrier update

Update 1: here is the transcript of Hansen's latest "in plain English" (alt. here)

Update 2: here is the Climate Cultures article this map was used in, thanks Lola Perrin.

Update 3: here at the end is the relevance of this sort of effort in a broader context

Two weeks ago I recreated Sea Level Rise (SLR) and Risk of Flooding (RoF) maps for the lower Thames River near the Thames Barrier (blog) for a WhatsApp Group considering the future of its ageing infrastructure w.r.t. recent climate extremes. This week came a global and urgent update affecting Sea Level Rise, by James Hansen who sounded the alarm ~ 35 yrs ago (go to 1981 & 1988 in Medium): a paper incl. supplementary materials "Global Warming Has Accelerated" (Columbia) c/w companion webinar (Columbia).

Tuesday, 21 January 2025

London Thames Barrier revisited

Update 2: see renewed Sea-level Rise extents according to new information here 

Update 1: see addition at bottom... thanks to our indefatigable London climate activists!

Further to my original blog post 3½ yrs. ago here, I was asked to share maps of the area surrounding the Thames Barrier (Wikipedia): A WhatsApp group considered the necessity for a second barrier under Climate Change that increases both flooding and sea level seasonal elevations. 

Monday, 16 December 2024

Senegal delta sea level rise map

Five friends at Arts & Metiers engineering school in Paris took a ten month leave to sail around the North Atlantic: Lez'Arts Marins (here) sail south from Britanny past the Azores & Madeira to Senegal for a moth humanitarian aid project, west across to Martinique and northeast N of Scotland to Scandinavia and back.

Saturday, 12 October 2024

Hurricanes, tornadoes and sea level rise

Update: see @ bottom example of a Cyclone (Wikipedia) as they're called in the So. Hemisphere.

 Further to our explorations in AI here and to the previous post here, this is a 'conversation' with Copilot, Microsoft Bing's AI extension. Conversation means that you can daisy-chain questions without repeating them, either to extend or to zero in:

Friday, 11 October 2024

Global sea level rise revisited

Update: so follow-on here with definions and relationsips among these topics

I posted here 3 yrs. ago among a series of DIY map notes to encourage Citizen Science, how to use NOAA global digital elevation data to model sea level rise data on straight geometry. See also here for an explanation referring to East Anglia. Here is what it looks like from the DIY document:

Monday, 2 September 2024

Global harmonization of climate & temperature data since 1850

Update: a post in SciTech Daily shows that ocean  atmospheric science - shown in this and previous post - is alive and may help with assessing climate change: it's about the doldrums driven by downdrafts not updrafts; at a localized scale, downdrafts  were dramatically reported in passenger flight incidents here or the sinking off Sicily of a superyacht here, and updrafts in increasing mid-Atlantic hurricane generation here

Friday, 23 August 2024

A return to my roots

Updates: mapping climate data from historic ships & global harmonization follow respectively herehere.

 "You can get Andrew outa maps, but you can't get maps outa Andrew" quipped a GIS map friend when I left Kuwait a dozen years ago... Well after quitting socials, Esri(UK) graciously helped me recover my desktop app. While I lost my story maps and web maps content, I maintained a free dev account - story maps and maps&data - this was chiefly to preserve my Living Atlas content inspired by John Nelson

Saturday, 20 January 2024

Community engagement and social prescribing

Community Engagement 1,... 20212223, 24 & 25

This follows an update on this blog here, where I announced my move away from Cambridge. This is also a good place to end the Community Engagement series. I will however continue on topics as they arise like re: AI here, or Sea Level Rise here & updated Thames Barrier starting here. Follow also the Blog Archive to the right-hand side of the desktop version here, as well as the right-hand side of the Banner Menu atop.

We recently rebranded Cottenham.info to Cambridgeshire.ai: the domain name is acquired but page not done yet finished; we have a prospectus as an evergreen document, meaning ever evolving.

Our community involvement over 5 years in March is one object of this blog starting  here (follow the links) and listed here. We engaged with various community interest  parties at the impact of climate change then the pandemic on social isolation in East Anglia.

Wednesday, 11 October 2023

"So long and thanks for the maps", Part IV

 Over 1½ yrs. ago Part I said that I left socials and geo work... well not quite! I did quit all activism and will soon return to my family home in France left almost 50 yrs. ago.

I left now by entering the 2023 Story Map competition with "a story about conserving Earth’s lands and waters": East Anglia Fenlands: Peatlands Restoration to mitigate Climate Change sums up my work in East Anglia under Cottenham Open - introduced here 4½ years ago as Local community engagement - you can follow my professional portfolio either at top right of my blog home in desktop mode, or my story map direct

Wednesday, 28 June 2023

Cottenham Open CIC rebooted

Community Engagement  1, ... 12, 13, 14151617181920 & 21


Update: the next post (here) will show how a blog post on creating maps, is created by generating prompts  using Bing AI in a Udemy course on prompt engineering following STAR (style-task-audience-role).

Re-engaging après-COVID what is in LinkedIn, below & Esri HubPart 1 outlined Community Engagement. Part 2 built a story introducing the community. Part 3 tied together community maps and climate mapping. Part 4 introduced a process framework for this community engagement. Part 5 expanded on our aim toward a community engagement.  Part 6 added our own Wikipedia Gazetteer as we build up the local landscape. Part 7 showed a draft Press Release introducing our social enterprise. Part 8 on coastal inundation scenarios adds some parameters in the debate. Part 9 on temperature anomaly scenarios further constrains the debate. Part 10 followed up village engagement process via recent Parish Council update. Part 11 added flood risks to coastal inundation and temperature regime models. Part 12 described Cambridgeshire Parishes affected by sea level rise. And finally here we introduce AI with a local twist.

Monday, 26 June 2023

Sea Level Rise update

The last post before peatlands (recent update here) was the East Anglia flood protection infrastructure here - both used extensive Environment Agency data, publicly available if needing some (at time extensive) work as described therein. Here are further DIY resources to create maps like this fun pirate map of East Anglia under 12 m. water est. around 2150AD (from here updated here):

Friday, 23 June 2023

Community, climate and maps - an update

Update: see a follow-on post to sea level rise in East Anglia here.

 This is a follow on to this post: lets address one of the update items, Fire & Ice, in the light of an early and vicious start  to the Canadian fire season. The question is: notwithstanding this year's events, is there an increase in fires and if so, can they be related to climate change as, say, in California?

Tuesday, 20 June 2023

A brief history of mine

Update 2: see my journey on the web here.

Update 1: a duo of posts on my Medium professional channel here relates my early computing.

As I go through a 'hard reset' in my life and plan to exit social media, this may be a good time to pause and reflect on my IT journey.


Calgary 1986 see here

Although I started on mainframes at Univ. of Calgary 1979 (here), I transitioned to desktop at Queen's Univ. (here). That post's intro lists articles illustrating the progression from geology to computer mapping and GIS. The reason I was able to do that, is that my eight years of high-school Latin allowed me to read, fix and re-run Unix scripts running petrodata management software in the oil industry, where I spent the bulk of my career.  

That then prepared me for HTML coding in the early pre-Internet days... This was 1986, 3 yrs. before Tim Berners-Lee ushered in the World Wide Web! The City of Calgary in W CAN was optically wired by the then government telephone co. AGT (now Telus) for free, betting on the fact they'd recoup the money - and they did so handsomely - via the traffic of all the oil companies jammed downtown. This was against a backdrop of the Province of Alberta having forward-looking Land Information System based in the capital Edmonton a couple hours drive north (here), but that was the heyday of early data transmission protocols (rpc)  and open binary data (EBCDIC) that opened the data flow cross province on said optical network.

Anecdote 1: as an undergrad at University of Calgary, I learned of Ted Nelson's Xanadu project (here), to catalog the world's information via what later became Hypertext Markup Language (HTML) - few people realise Tim Berners-Lee didn't invent anything, he built on exisiting systems... as we all do - but Nelson was a propeller-head who couldn't  market his idea (here). John Walker, co-founder of Autodesk, reportedly bought the technolgy but it never got anywhere... I heard of this as I was cooling my heels awaiting to meet him, with Carol Bartz his then PA - the same who eventually lead Autodesk then Yahoo, a true pioneering woman in IT - when a surveyor friend and I tried to sell them the idea of a mapping front-end to AutoCAD ... in 1986! Remember MS Windows was launched just the year before (see Side Story here and illustration here incl. photo above). Did you know I received a copy of  Windows v.1.O as part of a hardware upgrade to boost my computer's memory from 640Kb to 1Mb?! Sidebar: Was Bill Gates not famously quoted that no personal computer would ever need over 640Kb RAM  (here)?

CD-ROMs


Note that was the early to mid eighties and the web had yet ot be invented! In fact I helped launch a CD-ROM publishing firm, that put all of the Alberta well data on one CD and petroleum production info on another... using a Texas school board hashing algorithm. CDs were so rare in fact, that we leased the CD readers together with the discs themselves. Aside from the hashing algorithm, CD-ROM publishing conferences at the USGS with Gerry McFaul encouraged us to publish CD data. Another effect of pioneering CDs was that we shipped data to Dublin OH to have the CDs pressed... and US customs did not know what Exabyte data tapes were, so we shipped data as videos!

Anecdote 2: Microsoft was largely credited with popularizing CD for software distribution. While that is true, the real initiative was the US Dept. of Defense - the same people whose DARPA developed the precursor to the internet linking US military to government contractors, chiefly universities in the beginning - the reason? In the Cold War era, it was feared the Soviets might detonate an atom bomb at 5-10 mi. altitude that would fry the entire electronic infrastructure of mainland US, thus disabling the military - oh! and the rest of the country is collateral - I learned via the USGS mentioned above, that CDs were immune to resulting electromagnetic pulses.


Anecdote 3: as I had been on contract to the Geological Survey of Canada Calgary office across from the university, we visited the geological library and offered to scan the index cards to electronically catalog them on CD-ROM - after all our software came from a school library application - do you know what the librarian said then? "If we made the catalog that easily accessible, can you imagine the amount of work that might create?" We obviously had work to do, convincing a traditional business of the advantages of electronic access, taken for granted now!

 

Pre-WWW


Notwithstanding work on CD-ROMs, we benefited form the optical network to start building HTTP networks as we called them, as internet never mind intranet or the WWW hadn't been invented yet, not outside DARPA. My blog posts the first screenshot of an early 'website' (term as yet n/a) under 1986 at top left of the banner menu:




Progressively larger firms in the petroleum service sector took me to Texas, where we did lots of things on the nascent internet. That's when I built my first website, playing with HTML formats on my life and work stories by year, patterned after a glossary I co-authored with another counsellor. You'll recognise the website structure inherited or inspired by my first site a decade earlier:


Standards & Metadata


Parallel to this, I got involved in standards and metadata via CNC/CODATA to try and rationalize semantics of geological terms, which are quite complex. At the time the mining geological community and the USGS made some inroads, and the North American Geological Data Model emerged from that. But that was a long and arduous process that didn't come to fruition until after I switched to GIS in California in 2000. That is in turn written up in the manuscript splitting data into concepts (data taxonomy that evolve over time) and occurrence (geographic location that are fixed). In fact I took one of the geological map sheets and formatted it accordingly as an example: 



There followed a series of standards&metadata papers given at Esri and followed up on my blog and Medium channel (here, here, here, here, here, here and here) as I moved from US to UK. That put me in touch with AGI and eventually the Geospatial Commission, who have big plans supporting digital twins to enhance and enable UK infrastructure.

Volunteered Geographic Information


After I left "da awl bidness" (the oil business Texas-style) in the economic downturn, I became full time Volunteered Geographic Information as this blog is titled. I started a Community Interest Company to address East Anglia rural isolation affected by climate change and the pandemic via local community engagement. I also bird-dogged COVID polling NHS and ONS data. This is on the back of using Ordnance Survey parish data released in public domain with HC Derby Medieval Fendlands and Drainage of the Fens data to build up  a series of agro-history maps here... since Domesday in 1067! Sharing that was followed by a series on interacting with data agencies and improving their data ending here. My highlight was running a YouTube livestream on dsiplaying & tracking COVID data here.

Building from that I drew a series of sea level rise maps and training materials branching into environmental issues for East Anglia re: climate change ending here. I also engaged in the new medium of story maps key along the top level menu, a professional portfolio through the Community Interest Company as well as some of personal interest. In order to help others build the same, I shared here a series of "build your own" resources. This topographic map has sea level rise calculated  from NOAA:



I also posted atop the blog my professional Medium channel on various geodata topics here. Feel free also to peruse my YouTube channel and other resources along the top level menu bar of this blog: It is only visible on the desktop version, so on mobile make sure you scroll to the bottom and select "View web version".

Wednesday, 14 December 2022

More fun with Maps

Although I have not seen Avatar: The way of Water, it brought back images of  Waterworld... 2¾ decades ago! I was told on socials "... did [Avatar 2 director] James Cameron commission this map of yours to depict a much waterier world? 😉". That reminded me I should pull out again one of my favorites I put as my twitter page banner.

Monday, 10 January 2022

"So long and thanks for the maps"

"So long and thanks for all the fish, I meant maps (apologies to Douglas Adams)" was the last post in my #30DayMapChallenge reported below, not incl. an extra one at the end. As my life situation has changed, however, this proved to be prophetic: I'm withdrawing from social media, activism and geo work until I sort my life out. It’s been a pleasure participating in mappy adventures with y’all. Ta for now.

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, 28 September 2021

Return East Anglia Peatlands to being carbon sinks

Community Engagement  1, ... 12, 13, 141516171819 & 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.