Experiments with the global JAXA ALOS World 30m elevation model on AWS S3 +++
So yesterday I was looking into a global 30m elevation model called the ALOS Global Digital Surface Model (AW3D30). It is from 2016 and produced by the Japanese Aerospace Exploration Agency (JAXA). Supposedly it is a pretty [decent...
Hosting and accessing cloud optimized GeoTIFF files on AWS S3 - A practical guide using the EU-DEM elevation model +++
There are lots of great geospatial datasets available online, but accessing this data automatically and at scale is often difficult, and manual access usually takes a bit of work to download and sort it all. You'll have to register for some silly data portal, pick out the tiles that overlap...
Guide to GeoTIFF compression and optimization with GDAL +++
With the fast ZSTD compression (GDAL 2.3 and above) and Limited Error Raster Compression (GDAL 2.4) becoming available in our favourite geospatial toolkit, I thought it would be interesting to run some benchmarks and write a guide on compressing and optimizing GeoTIFF files using the latest...