mdsumner
@mdsumner.bsky.social
maxing the pixels to glow
penguin shit from space, R, Python, GDAL, virtual Zarr, coordinate systems, southern ocean research
hypertidy.org
penguin shit from space, R, Python, GDAL, virtual Zarr, coordinate systems, southern ocean research
hypertidy.org
just ran a Sentinel 2 query for every 100k grid square for March this year and pulled out unique instances there are 28696 unique grid codes
December 22, 2025 at 10:45 AM
just ran a Sentinel 2 query for every 100k grid square for March this year and pulled out unique instances there are 28696 unique grid codes
For the record, I don't blame Dave
December 20, 2025 at 9:47 AM
For the record, I don't blame Dave
I've definitely made this plot before but not realized why *I should*
UTM zone 55S with 0-level MGRS tiles
UTM zone 55S with 0-level MGRS tiles
December 17, 2025 at 8:20 AM
I've definitely made this plot before but not realized why *I should*
UTM zone 55S with 0-level MGRS tiles
UTM zone 55S with 0-level MGRS tiles
is it wrong to feel somewhat validated by a robot
December 15, 2025 at 10:02 AM
is it wrong to feel somewhat validated by a robot
![Just had a chat with dicky.
I am the [sic] going to be Santa : )](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:adcny5sqjkjlfna57s2hbybf/bafkreiahzztnjnewfz5df2jrirgbwm2ijnlmff4dcql7mb757u6qaiajky@jpeg)
Hmm why don't I ask this ...
November 19, 2025 at 10:48 AM
Hmm why don't I ask this ...
why tf does it suddenly work ...
October 21, 2025 at 11:44 AM
why tf does it suddenly work ...
HIGHLY recommended, I have some reading to do
October 11, 2025 at 12:14 AM
HIGHLY recommended, I have some reading to do
The other day my mum went away on holiday and later asked me to go check the stove at their house
September 28, 2025 at 12:52 PM
The other day my mum went away on holiday and later asked me to go check the stove at their house
my 14 year old question on SO was deleted finally, 33K views
I think I asked a handful of questions ever, and this one was never answered very helpfully I just learned it eventually through practice
I think I asked a handful of questions ever, and this one was never answered very helpfully I just learned it eventually through practice
September 18, 2025 at 12:44 AM
my 14 year old question on SO was deleted finally, 33K views
I think I asked a handful of questions ever, and this one was never answered very helpfully I just learned it eventually through practice
I think I asked a handful of questions ever, and this one was never answered very helpfully I just learned it eventually through practice
This guy has a gig tomorrow at Mona
September 14, 2025 at 12:31 AM
This guy has a gig tomorrow at Mona
Helluva list ... so happy to find it
August 30, 2025 at 9:15 AM
Helluva list ... so happy to find it
Found my old reading list, it extremely interesting and helpful to me. Wish I'd maintained it ... but restoring this into a partial list is going to help, a bit
Was actively keeping it 1997-2000, and there's helpful notes of earlier years and some of what was going on (where I was etc)
Was actively keeping it 1997-2000, and there's helpful notes of earlier years and some of what was going on (where I was etc)
August 30, 2025 at 9:01 AM
Found my old reading list, it extremely interesting and helpful to me. Wish I'd maintained it ... but restoring this into a partial list is going to help, a bit
Was actively keeping it 1997-2000, and there's helpful notes of earlier years and some of what was going on (where I was etc)
Was actively keeping it 1997-2000, and there's helpful notes of earlier years and some of what was going on (where I was etc)
fun with hillshade (of COP30 and ESRI imagery)
August 26, 2025 at 2:04 PM
fun with hillshade (of COP30 and ESRI imagery)
Fuck yeah, it's sunny and I can read and listen to Urge Overkill a little longer
August 2, 2025 at 3:15 AM
Fuck yeah, it's sunny and I can read and listen to Urge Overkill a little longer
still using buildvrt? no need (since GDAL 3.11), template in your sources as a comma-separated list and then this json description can be opened by any GDAL-enabled tool
August 1, 2025 at 10:57 PM
still using buildvrt? no need (since GDAL 3.11), template in your sources as a comma-separated list and then this json description can be opened by any GDAL-enabled tool
similar with the North
(annoying my plots are out of sync)
(annoying my plots are out of sync)
July 26, 2025 at 10:36 PM
similar with the North
(annoying my plots are out of sync)
(annoying my plots are out of sync)
not so bad across the suite of 3 (the palletized version only takes the last layer it seems) - I intend to make a bucket with this mean(, na.rm) version is that of interest?
July 26, 2025 at 10:31 PM
not so bad across the suite of 3 (the palletized version only takes the last layer it seems) - I intend to make a bucket with this mean(, na.rm) version is that of interest?
or, a more permanent problem now? I see better coverage with the mean of the netcdf layers (second image)
July 21, 2025 at 11:21 PM
or, a more permanent problem now? I see better coverage with the mean of the netcdf layers (second image)
Oh nice! Thanks for the pointer
Yml this paper, was referenced in old maptools for geog direction which I used elsewhere too
Sorry for image, I can't copy the link 🫠
Yml this paper, was referenced in old maptools for geog direction which I used elsewhere too
Sorry for image, I can't copy the link 🫠
July 12, 2025 at 11:27 AM
Oh nice! Thanks for the pointer
Yml this paper, was referenced in old maptools for geog direction which I used elsewhere too
Sorry for image, I can't copy the link 🫠
Yml this paper, was referenced in old maptools for geog direction which I used elsewhere too
Sorry for image, I can't copy the link 🫠
actually I lied, that was at low resolution, here is native GEBCO 2024
gist.github.com/mdsumner/daa...
gist.github.com/mdsumner/daa...
July 4, 2025 at 6:11 AM
actually I lied, that was at low resolution, here is native GEBCO 2024
gist.github.com/mdsumner/daa...
gist.github.com/mdsumner/daa...
extremely silly and niche, where in the world is the elevation 4326m
July 4, 2025 at 5:16 AM
extremely silly and niche, where in the world is the elevation 4326m
