@koovac

data maps climate cities @WorldResources, likes dogs, all views my own

Joined December 2011
  • Tweets873
  • Following238
  • Followers178
88Media
The state of play, a week into Elon's assault on USAID. USAID is in a state of suspended animation - it has been powered down, but it's not *quite* to the point where it can't be powered back on. What happens next comes down to the courts & Congress. 🧵
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🚀 We are thrilled to announce the release of the Icechunk storage engine, a new open-source library and specification for the storage of multidimensional array (a.k.a. tensor) data in cloud object storage. Read our blog post about Icechunk here: earthmover.io/blog/icechunk

Announcing Icechunk! | Earthmover

Earthmover announces Icechunk, an open-source transactional storage engine for Zarr that brings ACID transactions, time travel, data versioning, and high-performance Rust-based I/O to multidimensio...

earthmover.io
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I'm so excited to finally introduce Fields of The World (FTW!) - the largest & most diverse ML dataset for field instance segmentation in satellite images. FTW has >70k samples from 24 countries (4 continents), with semantic & instance labels + Sentinel-2 RGB-NIR from 2 dates. 🧵
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Alex Kovac retweeted
bdon@bdon30 May 2024
if your company asks privately about why a "critical" feature is missing in an open source project, and isn't willing to pay to have it implemented, it is not, in fact, "critical"
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GDAL 3.9 was released today with a bunch of updates for @GeoParquet, including support for spatial filtering in the upcoming GeoParquet 1.1 version! Credit to @EvenRouault and other GDAL contributors 🙇‍♂️! github.com/OSGeo/gdal/blob/v…
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Alex Kovac retweeted
kepano
@kepano15 Feb 2024
I appreciate the nod to "File over app" from @mbostock and the @observablehq team in the latest announcement. It's so cool that a Markdown file with code blocks can be the source for complex data visualizations and dashboards. This means the files are interoperable with @obsdmd. Here I am running an Observable site from Obsidian
Screenshot showing Observable notebook edited in Obsidian

ALT Screenshot showing Observable notebook edited in Obsidian

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We need #machinelearning for satellite data ("SatML") to address planetary-scale challenges 🌍 but mainstream ML is ill-suited to SatML data & contexts. It's time we recognize satellite data as a distinct modality for ML research to unlock its potential 🦾arxiv.org/abs/2402.01444
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someone should create a collection of implementation examples and success stories for companies who have migrated off paid service APIs to open-source, self-hosted solutions (or open-source solutions on a cloud-hosted platform) everyone is learning the same patterns in silos – at Palo Alto, CA
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open sourced a small cost calculator: estimate the monthly bill of running @protomaps on AWS or Cloudflare based on usage, compared to Google Maps and hosted base map APIs. Now part of the Documentation site! docs.protomaps.com/deploy/co…
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Alex Kovac retweeted
Qiusheng Wu
@giswqs19 Dec 2023
A comprehensive list of 9,043 #NASA Earth science data products available in TSV and JSON formats. Integration into #leafmap for interactive search and visualization is coming soon 🗺️🌎 ➡️ github.com/opengeos/NASA-Ear… @NASAEarthData #opendata #geospatial #earthobservation
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Check out my new post with details of a new #GEE workshop for #DynamicWorld and the result of a mapathon event at Nairobi in collaboration with @RCMRD_ , @EarthOutreach and @WorldResources spatialthoughts.com/2023/11/…

Enhancing Land Cover with Local Knowledge

Dynamic World is a new landcover product developed by Google and World Resources Institute (WRI). It is a unique dataset that is designed to make it easy for users to develop locally relevant...

spatialthoughts.com
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Alex Kovac retweeted
Vizzuality@Vizzuality9 Nov 2023
We’re excited to publish our data on @source_coop, a utility dedicated to making it easier to share and access data using open standards. Thanks to @OurRadiantEarth for this 🙏 🌐 Use to measure land, carbon, and biodiversity impacts from agriculture: beta.source.coop/repositorie…
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Estimating the Cost of Hosting a Global PMTiles Dataset latlong.blog/2023/11/estimat…

Estimating the Cost of Hosting a Global PMTiles Dataset | Lat × Long

Using PMTiles, hosting and serving a global map dataset is significantly cheaper than comparable offers from commercial map data providers.

latlong.blog
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Taking a quick look at GLanCE land cover training data with lonboard for the #30DayMapChallenge github.com/kovaca/maps/blob/…
Kyle Barron kylebarron.dev on bsky@kylebarron21 Nov 2023
A year of vehicle collisions in NYC, with radius determined by number of pedestrians and cyclists injured, and colored by time of day. Made in Python with #lonboard. #30daymapchallenge Reproduce it with this notebook: github.com/developmentseed/l…
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"I’m so excited about this: we now have the ability to entirely self-host vector maps of any location in the world, using openly licensed data, without depending on anything other than our own static file hosting web server. " - @simonw perfect use case for extract+basemaps!
Simon Willison
@simonw31 Oct 2023
Weeknotes: DALL-E 3, GPT4All, PMTiles, sqlite-migrate, datasette-edit-schema simonwillison.net/2023/Oct/3…

DALL-E 3, GPT4All, PMTiles, sqlite-migrate, datasette-edit-schema

I wrote a lot this week. I also did some fun research into new options for self-hosting vector maps and pushed out several new releases of plugins. On the blog …

simonwillison.net
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Screenshot from Disney Frozen singalong with the text “do you want to build a snowman?” The word “snowman” is crossed out and changed to “dashboard”

ALT Screenshot from Disney Frozen singalong with the text “do you want to build a snowman?” The word “snowman” is crossed out and changed to “dashboard”

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“It doesn’t have to be a dashboard”

ALT “It doesn’t have to be a dashboard”

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Alex Kovac retweeted
CNG@cloudnativegeo23 Oct 2023
To help you navigate the expanding universe of cloud-native geospatial technologies, we’re excited to introduce the Cloud-Optimized Geospatial Formats Guide. Visit the guide to get started guide.cloudnativegeo.org
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Where is COG for Vector? On the @cloudnativegeo blog: cloudnativegeo.org/blog/2023…
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Alex Kovac retweeted
Rob Simmon@rsimmon7 Oct 2023
Using GDAL for data visualization. Wherein I try to explain the difference between "imagery" and "data", with the help of two radically different pictures of the same place with the *exact* same instrument: medium.com/@robsimmon/a-gent…
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