Jarrettinho

Misty walk along the river Adur this morning. Saw an egret, oystercatchers, snipe, blackheaded gulls, skylarks on some beautiful #saltmarsh
#nature #sussex

Coherent and incoherent change detection for improved flood mapping: A Sentinel-1 SAR time-series approach Flood mapping and monitoring are common emergency response applications using Synthetic Aperture Radar (SAR) data, particularly Sentinel-1, which prov…

Very good article on how good #Sentinel1 #changedetection is in #mapping floodwaters. For a flood in Afghanistan, this methodology was able to detect 5 times the area shown by some products in the Global Flood Monitoring System.
#remotesensing #GIS #geospatial

This spring sees the release of a documentary about the fight to defend and extend access to nature in England and Wales. OUR LAND, directed by Orban Wallace and shot by Gallivant Film, follows the Right to Roam campaign as we trespass estates and challenge removal of rights on Dartmoor and beyond.

Excellent video tutorial on creating animated traces in #QGIS over on #reddit:

https://www.reddit.com/r/QGIS/comments/1rde0fm/comment/o7c29l7/

#GISChat #MovementDataAnalysis #MovementData #Mobility

Haven't been to a #cafc away game since the days of Bowyer. Disciplined performance yesterday at Southampton spurred on by great support #coya

FACT OF THE DAY. 21 February 1946. Aneurin Bevan announced the Labour Government’s proposals for a National Health Service. The service began on 5 July 1948. Its introduction represented one of the greatest social reforms in British History which helped every citizen.

Bouncy low tide dip this morning

Contrast stretched difference between a JPEG and a WEBP derived from it. The speckled pattern shows how the second-generation compression degrades the image.

Difference (contrast-stretched) between an original JPEG and a re-compressed WEBP. If possible, start from a PNG or other lossless compression format before creating a lossy version of an image.

Source: science.nasa.gov/earth/earth-...

Relative elevation models are both compelling visualizations of fluvial systems but also frankly useful for geologic mapping of terraces or quantifying zones of potential flood inundation. Several years ago Open Topography coded up an method for using python to make REMs (see below) 🧵

A Relative Elevation Model is a really useful method for visualising the context of a river and its immediate surroundings.
Here it can be seen the importance of the Great Stour on Kent as a whole.
All through the power of #QGIS

#river #cartography

After yesterday's deluge we've now had 408mm of rain this year.

That amount wasn't reached last year until the 19th July.

🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🌧️🐳

Good news from Orford Ness 📣 This year, more than 430 grey seals pups have been born, an 88% increase on last year and the highest number since the colony arrived in 5 years ago. It's the surest sign yet that the colony has established and is growing on the Suffolk coast.
📷️ Hanne Siebers

The UK universities cutting geography have lost their bearings From climate change to geopolitics, the knowledge, skills and insights of geographers have never been more relevant, say five professors

“Geographical training and knowledge, in short, is more important than ever. We say this loudly and clearly, lest our universities forget.”

A quotation from a post by 'Bees and Beyond' on Substack (read on 14.2.2026).

"I care far more about reversing insect collapse than expanding tech and AI infrastructure. 🐝🐝🐝"

This is a real timelapse video of the Moon transiting in front of the Earth.

It was captured by the Artemis 1 Orion spacecraft in November 2022 while flying at it's furthest point from the Earth.
The video covers about 3.75 hours of real time. 🔭🧪

Started my annual Goshawk fix near Crawley, Lucky to see a pair dancing and several close-ish flybys @sussexwildlife.bsky.social #goshawk #raptors #birds

Gladys Mae West obituary: mathematician who pioneered GPS technology She made key contributions to US cold-war science despite facing huge barriers as a Black woman.

No joke: I got angry hate mail today for writing an obituary of a Black woman scientist—because the person felt she did didn’t deserve the recognition.

Which just makes me want to share it again: www.nature.com/articles/d41...

Exploring the #eurostat population #map by sex, you can find a district in Greece with 100% of men population. Welcome to Mount Athos ! See: link.europa.eu/nJFhD8

#maps #cartography #demography #statistics #census #gis #gischat

Solmonath (mud month) is what Anglo-Saxons called February.
Right now in the UK its easy to forget the importance of rewetting landscapes in dealing with climate change.
If you're involved in nature-based solution projects big/small I can help using #gis tools to monitor & analyse project outcomes.

It's ecological breakdown that should put us on a war-footing: official Admissions of extreme, eco-caused national security threats foreground importance of climate adaptation to bring much needed urgency and agency.

It's ecological breakdown that should put us on a war-footing: official www.resilience.org/stories/2026...

2026-02-04 Happy Birthday OSGeo! Celebrating 20 years of Free and Open Source Software for Geospatial

Happy Birthday OSGeo! Celebrating 20 years of Free and Open Source Software for Geospatial 2026-02-04

Thank you to everyone who has been part of this endeavour over the last 20 years.

We invite you to celebrate with us, to share memories & to look ahead to […]

[Original post on fosstodon.org]

Special issue description

Submission deadline approaching for "Coding Earth – open-source solutions in Physical Geography"

We look forward to submissions on open-source methods and tools in geography.

⏳ Deadline: 1 Mar 2026
🔗 https://journals.sagepub.com/home/ppg

#OpenSource #RStats #Python #Julia

All 60 videos from #QGIS for Hydrological Applications – 2nd Edition are now in the #Fediverse on #QwastTube! 🎉
Watch the full series here: https://videos.qwast-gis.com/c/qgishydro

Follow my video posts here:
@hansakwast@videos.qwast-gis.com

Follow the #QGISHydro channel here: @qgishydro

Apples was a disaster for us as well (Charlton)

Utrecht to start construction on largest car-free neighborhood in the country next week Construction of a new neighborhood is set to begin in Utrecht next week. The neighborhood, called Merwede, is scheduled to be the largest car-free district in the Netherlands, with 6,000 homes. The ar...

In case you missed it, Utrecht, Netherlands has begun building the largest Dutch “car-free” neighbourhood.

12K people
6K homes
1.8K social rental homes
1.5 mid-range rental & affordable owner-occupied homes
21.5K bike parking spaces
250 shared cars
2 parcel hubs
Parking structures on the edge.

Uranus and its rings as Voyager approached it from the south

Uranus, enhanced to make discrete clouds visible

The rings of Uranus in a deep exposure. The spacecraft tracked rings, so the stars are smeared and appear as trails.

The major moons of Uranus to scale.

Today in 1986, Voyager 2 made humanity's first and only encounter with Uranus, revealing its clouds, rings, and fascinating zoo of moons.

Group of people walking on a pebbled beach, collecting rubbish with bags and grabbers, under a cloudy sky.

A trailer filled with black plastic bags and yellow foam blocks, secured with a green netting, collected from beach

A basket of mixed onions collected from beach with a lifeboat house and a utility vehicle in the background.

Person in winter clothing picking up rubbish on a shingle beach using a blue bag, contributing to environmental cleanup efforts.

Thank you to the volunteers who have responded so quickly to the latest pollution event at Rye Harbour Nature Reserve. 

We collected 40 bags of insulating foam pieces from the shipping containers + we also removed 20kg of onions & other produce.

📸 Matt Rich, Dave King, Arthur Sloman and Aimi Rifat

Good point. Overland flows need more consideration in flood effects

How Google Maps quietly allocates survival across London’s restaurants - and how I built a dashboard to see through it I wanted a dinner recommendation and got a research agenda instead. Using 13000+ restaurants, I rebuild its ratings with machine learning and map how algorithmic visibility actually distributes power.

I wanted dinner recommendations so I scraped 13,000+ London restaurants and accidentally discovered Google Maps is running a shadow economy. Anyway here's a dashboard and a political economy thesis: open.substack.com/pub/laurenle...

Great article this