David Stott

@davstott.bsky.social

2646 Followers 859 Following

Paleotopographer. Asking how people changed landscapes and landscapes changed people. GIS, remote sensing, archaeology. Tinkerer. Aspiring bodger. Glaswegian ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ in Jutland ๐Ÿ‡ฉ๐Ÿ‡ฐ. Personal account. All views my own etc.

Two kids fishing for crabs on a pontoon . In the foreground a clear bucket with quite a few crabs in it.
Magic labyrinth the board game
A green metal gerry can sits in the box of a cargo bike / triporteur / bakfiets. It's getting filled from a petrol pump.
A can of wasp nest spray. It's in danish. It says 'handles unwanted wasps nests'
A compass rose from an actual ship's compass, turned into a table in a bar. The glass is surrounded by a brass ring, which in turn is surrounded by various drinks and beermats. The text reads: " Sperry gyroscope compass inc. New York. Mark XV. Mod.O Gyro compass repeater. Patented Mar 4 1919"
A portrait shot of a beach in the foreground. Small figures are silhouetted in the background. On the horizon is Ailsa Craig. Above this scene roars a military cargo plane.
colour ramp dialog in qgis, with the 'gradients of discord' theme selected. These are not nice and hurts my eyes
A hand holding a punnet of red cherries against a backdrop of red cherries on the tree. Under this lots of nettles and young raspberry canes. This all needs mowed in a few weeks when I'm sure there's nobody nesting there.
A screenshot from the reviews of this album: "What a horrible, ugly album. This is the epitome of ugly, dirty, grungy, edgy, "I hate god", postmodern trash. Trent is too lazy to hire a real drummer, so he uses an awful drum machine. The whole album just sounds like static with screaming. The whole thing is just an effort to piss off social conservatives. And if that was the goal, Reznor succeeded. Robert Bork was correct to point to this album as an example of cultural decline. It's meaningless, nihilistic, and adds no value to the world. If you disagree with me, consider this. "If there are so many religions, gods, beliefs, etc., how do we know which one is real?", says the postmodernist. Answer: the one you hate. NIN takes the beauty of cathedrals, the peace of a loving family, the community of a church, and angrily spits at all of it, childishly spewing shock content in an edgy nihilistic rage. If you find yourself wondering why we no longer build cathedrals and all modern architecture is horrifically bereft of beauty, the answer lies in the postmodern trash as exemplified by this album's degeneracy."
The cover of Handsome Derby - A Reverse Harem Featuring Thoroughbred Centaurs, by Spicy Gooner Queen.
Looking up the hill into a canopy of a young beech plantation. The Golden, low-angled light from a descending sun is catching the leaves at the top
In the woods. A track stretches into the distance from the foreground. Beside this a massive old beech tree with buttressed roots. In the background the light from the not quite setting sun sets the leaves aflame with golden light
An image of a guy in chainmail about to plunge a dagger into a Commodore Amiga 500. His left hand is on the mouse. I wish I knew where this is from. Then i'd attributed it properly. Sorry.
A brown paper bag full of fresh peas.
An AI slop product image of some absolutely massive quick release skewers. There is a bike wheel in the foreground and in the background a nice looking bike. Tools are strewn around. The scale is screwy, so these skewers are probably about 1.2m long and 30mm diameter
Four different methods of detecting fluorescence on the same profile. Top left is using a 400nm longpass filter with 365nm illumination. The bright blue bits are bone. Top right: Raw values from the green channel of the 365nm illumination image with no filter. Bottom left: Hue difference, 365nm illumination image, no filter. Bottom right: False colour composite of Independent Components Analysis components of all channels of hue difference. Read the paper for more on this one...
15 subplots with camera sensitivity plotted against LED emission spectra
Plot. Spectral sensitivity of the red, green and blue channels of the Sony IMX477R sensor. There's a lot of overlap between channels
A soil profile illuminated at 365nm, with a 400nm longpass filter. The filter cuts off transmission below this wavelength, so what we see is just fluorescence and not reflectance. The profile is generally ldark bluey purple, with some bright objects. Here all the bright shiny spots are animal bone in an iron age profile. There's also some plant roots and lumps of clay and ash that are bright but a bit less shiny.
An LED multispectral imaging system: a black 3D printed dish surrounds a camera lens. mounted to this dish are lots of LEDs of different wavelengths, connected by multicoloured leads. It looks like a torture device from an '80s scifi movie.
A page from a William Hunt & Sons, the Brades LTD pattern book showing different regional patterns of billhook.
A page from a Brades Nash Tyzack pattern book showing different flavours of bill hooks
A hedging knife / billhook against a rolling landscape of apple trees, elder, pasture and more distant woodland
A grommet tool and a pile of grommets. It's got orange and black handles and seems to be made of sheet metal. I feel like I don't say or type the word grommet enough. Grommet. Grommet grommet.
A map of Jutland with simplified soil texture (sand and loam) with the limits of the older and younger outwash denoted by hatching. To give a bit of texture I've used valley depth.
How to draw owls
In the foreground wild roses. Behind the fjord. It's sunny and the sky is blue
In the foreground a topographic model of Egtved and the surrounding landscape, carved out some big chunks of oak. Bronze studs pick out the barrows. In the background is a model of a barrow in half section with the profile in cortan steel. 3 Phases of mound construction are picked out with dotted lines. Oak coffins are in the first two phases and an urn in the third.
A playground with a wiblywobly (it's on springs) twin-prowed Bronze Age boat an it's of an obstacle course.
Terminal output complaining that my computer can't allocate 51.6 GB of ram for an enormous numpy array
output drom a terminal window processing a terrain model. the terrain model is 500 million pixels. it says Openenss / Skyview factor processed in 5.82 seconds. Local dominance 5.44s. That's orders of magnitude faster than before...
A senior archaeologist balancing on a fencing stob taking photos. In the foreground an excavation trench in so dunes. Behind a jaggy mountain. Standing beside the fencepost is one of the greatest field archaeologists who's ever stomped upon the terra.
Archaeologists holding a long pole with a camera on the end against a scenic backdrop of an Iceland fjord and mountains.
A self portrait of my younger legs standing on top of a step ladder supported by some brave colleagues
The output of a random forests prediction of heath presence / abscence trained on a bunch of terrain / historical data. Its coloured from black (less likely) through purple to yellow (more likely). It's not a very good prediction, but it's kind of pretty
A map of Jutland with 15000 training points in each class- pink is heath, green wetlands and brown other land
A DIY haircutting bib, modelled by a man who looks way happier than he ought to be for a man in his situation- but there's a tinge of fear like he thinks he got away with something. A woman cutting his hair with scissors in her right hand and holding his forehead. We can't see her face because it's been cropped out so we can only imagine. The bib thing looks like someone has smashed a large aluminium pie dish over his head, being a sort of silvery dish thing. It is, frankly, a bit silly.
A ruler. But it's not just a ruler. It's a self-defence ruler with a machete handle. Because the even stationery can be tactical.
An Alko BM875 III scythe bar mower with new, puncture proof solid tyres.
A sign next to a madder bush. The sign reads "KRAP (rubia tinctorum)" with some following text concerning its use as a dye.
Diagram showing a theoretical PLSS township and how the sections should be numbered. It shows a 6x6 section of 1 square mile blocks.
A red an white enamel Copco ashet. In it are mushrooms on a skewer. These glisten with a soy, balsamic and garlic marinade. Beside these a clutch of asparagus spears. These are tossed in olive oil mixed with the remnants of the aforementioned marinade with a wee bit of extra lemon juice.
A red an white enamel Copco ashet. In it are mushrooms on a skewer. These glisten with a soy, balsamic and garlic marinade. Beside these a clutch of asparagus spears. These are tossed in olive oil mixed with the remnants of the aforementioned marinade with a wee bit of extra lemon juice.
qgis symbology dialog showing how to graduate line symbols by size
The neatly labelled pretty contours
text buffer
where to put the expression under the edit rule dialog
the same contours plotted with the settings described in the post. It's much easier to make out the slopes, summits and ridges now we've emphasised the 10m contours.
The edit rule dialog, showing where to enter the filter
Showing where add rule is
the QGIS symblogy menu under Layer Properties, showing the selection of Rule-Based symbology from the drop-down
1m contours of the same mountain side. It's hard to see what's going on as they're all smooshed thegither
A map of a bit of of a Sardinian mountain side (we clearly ain't in Denmark any more as we're several Himmelbjerger high). It shows a hydrological channel network with 1m contours denoted by a thin line. Thicker contours lines are drawn every 10m. These are labelled to show the elevation. The next picture in the thread will hopefully illustrate why this is good..
The neatly labelled pretty contours
text buffer settings
the Labels menu showing where to find rule based labelling
An ugly contour map just to show we can.. The contours are red, green and puce
the same contours plotted with the settings described in the post. It's much easier to make out the slopes, summits and ridges now we've emphasised the 10m contours.
The edit rule dialog, showing where to enter the filter