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Posts by Postholer - Hiking & GIS

The masses label us lonely, because they need continued validation, from everyone.

It never ends.

3 months ago 3 0 0 0

What others have said.

This is a city planning issue and a long-standing pursuit of property taxes. These lands need to be vacated and were *never* suited to development.

Throwing more money at denial is not even remotely the answer.

3 months ago 0 0 0 0

Nope, it's the real deal. Andrew documented the entire shot on youtube. Pretty amazing. He's got tons of photo like this, moon, space station, sun, etc.

4 months ago 2 0 0 0
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Here's the 11/13 23:00 3 day NBM QPF forecast compared to actual precip. Red means NBM over-stated (in inches):

4 months ago 0 0 0 0

#Kate thank you very much! :)

4 months ago 1 0 0 0

Un mot, AdBlockPlus :)

4 months ago 0 0 1 0
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Anyone notice a massive increase of bad internet traffic coming from South America over the last few months?

Here's looking at you #Brazil:

www.femafhz.com/map/-17.9518...

#gis #osint

4 months ago 1 0 0 0

Reason #387 why killing Israeli's is a bad idea.

4 months ago 0 0 0 0
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Roll your own without hosting any DEM data or 3rd party dependencies, using GDAL and Sentinel data on AWS. Add the following to your server side API:

#maps #gis

4 months ago 0 0 0 0
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That was Carl Sagan's speculation in the book 'Contact'. They're already communicating with us, we're just too dumb to figure it out.

4 months ago 0 0 0 0
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Here's an interactive map with the same data. Double-click anywhere to get the annual precipitation for an exact location:

www.femafhz.com/map/48.62379...

4 months ago 0 0 0 0
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GDAL CLI version 3.12.0 is out!

#gdal #gis #MtHood

4 months ago 5 1 0 0

Negotiate === concede

5 months ago 2 0 0 0

Nothing is more traditional than python?

Python spatial and all its package baggage are built on top of GDAL. Cut out the middleman and use 'gdal ....' to create/edit ALL your raster/vector data directly.

(Looking at you, too, ESRI)

5 months ago 0 0 0 0
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Comparison of NBM QPF (precipitation) forecast model vs actual QPF amounts, for 2 events, Oct 24-27 and Nov 04-06 2025 along the California north coast. Consistency is an issue. @nws.noaa.gov #weather #california

5 months ago 2 0 0 0

"the dog catching the car"

5 months ago 0 0 0 0
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National Risk Index, Riverine Flooding - Expected Annual Loss Rate - National Percentile shown. Choose category by state, county or census tract #polygons.

www.femafhz.com/map/35.13787...

#30DayMapChallenge

5 months ago 3 1 0 0
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a century of glaciers melting ๐Ÿงช๐ŸŒ

5 months ago 1044 617 49 58
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Using PostGIS ST_LineInterpolatePoints to evenly get points from line features (roads) and ST_ClusterDBScan to get (mostly) non-overlapping points for road shields on interactive map.

Using only st_clusterdbscan for non-overlaping GNIS place names.

#30DayMapChallenge #points #postgis #leafletjs

5 months ago 9 1 0 0
Preview
AMD, Department of Energy announce $1 billion AI supercomputer partnership New supercomputer clusters are headed to Tennessee.

Sorry, no boom, just bits:

www.theverge.com/news/807483/...

5 months ago 1 0 0 0
Preview
AMD, Department of Energy announce $1 billion AI supercomputer partnership New supercomputer clusters are headed to Tennessee.

Sorry, no boom, just bits:

www.theverge.com/news/807483/...

5 months ago 0 0 0 0

Seems like the guy from AWS last week found new employment.

5 months ago 7 0 0 0

Geosynchronous-LEO. Cool! ;)

5 months ago 0 0 0 0
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Here's a National Risk Index map for those disasters, except interactive, at state, county, census tract level for 24 different categories and 20+ metrics, percentile, expected annual loss, etc ,etc. 2022 data.

Riverine Flooding shown:
www.femafhz.com/map/36.98500...

5 months ago 1 0 0 0
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Fully interactive map of #Melissa, with the most up-to-date NHC data:

www.femafhz.com/map/19.43551...

5 months ago 0 0 0 0
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Here's the same result using only #GDAL, cutting out the python nastiness:

Simplify:
gdal vector simplify --input=states.gpkg --tolerance=.5 --output=simple.gpkg

Clean coverage:
gdal vector clean-coverage --input=simple.gpkg --snapping-distance=.7 --output=clleaned.gpkg

5 months ago 2 0 0 0
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#Melissa Cat 2-4, Sun 8am to Tues 8am, with Jamaica on the right hand side of the storm, 50km away. Brutal.

www.femafhz.com/map/17.66233...

5 months ago 0 0 0 0

kdp.amazon.com

On demand printing, no limit on # of copies. Print or eBook. Guidelines exist that can make it daunting. Not a small task. I've been using KDP for 10+ years:

www.postholer.com/maps/Pacific...

5 months ago 1 0 0 0

Not true. How much data will you fetch from an internet web-server?

The network and the client's ability to process is the limitation, NOT the FGB/COG format. How is shoving 50MB of vector data into an app/browser over the internet useful?

Parquet tooling is a problem, not a solution.

5 months ago 0 0 0 0

Why bother with Sedona/spark/duckdb/arrow overhead, if you're doing bbox range requests?

People need to understand, for bbox spatial queries, web server range requests and the proper file format, FGB/COG, are ideal.

Need a non-spatial attribute query? Great! Use the overhead you're suggesting.

5 months ago 0 0 1 0