Joe Hamman @_jhamman
Climate scientist, engineer and human. Co-founder/CTO @earthmoverHQ. @xarray_dev/@pangeo_data dev. Formerly @carbonplanorg, @NCAR_Science, and @uw_cee. He/him. joehamman.com Seattle, WA Joined October 2014-
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Running AI weather models in the cloud? Here are 3 optimizations that radically cut cost and keep those GPUs busy earthmover.io/blog/the-3-key…
1/ 🚀 Solving #NASA ’s cloud data dilemma: Icechunk unlocks 100x faster access to archival data formats We're thrilled to publish results from our pilot project with @NASA + @developmentseed to enable high-performance cloud-native access for NASA’s 100s of PBs of EO data.
We're moving over to BlueSky and LinkedIn for all our future announcements. Follow us at bsky.app/profile/pangeo… to find out more about tomorrow's showcase 😉 (p.s., it's on Xpublish at Scale at 4 PM EST 🚀) Connect with us on LinkedIn at linkedin.com/company/pangeo…
🌍 As we digitize the analog world, new data formats unlock exponential value. @EarthmoverHQ's open-source Zarr and Icechunk are redefining how we organize and compute massive geospatial datasets, scaling solutions for problems once thought inaccessible. 🔊 Links 👇
🌍 As we digitize the analog world, new data formats unlock exponential value. @EarthmoverHQ's open-source Zarr and Icechunk are redefining how we organize and compute massive geospatial datasets, scaling solutions for problems once thought inaccessible. 🔊 Links 👇
🌎 Why do we need a cloud-native data lake for geospatial data? In the latest episode of The Infra Pod, @tnachen & @ianlivingstone chat with the cofounders of @EarthmoverHQ, @rabernat & @_jhamman, about the future of data in climate and earth sciences. 🎧 Link in 🧵
If you’ll be at #AMS25 and love weather data, join us for a @pangeo_data Community Happy Hour! We’ll have drinks, appetizers, and great conversation with friends old and new about technology, weather & climate data, and open-source software! Register: lu.ma/ddtba5f5
We’re thrilled to announce the release of @zarr_dev-Python 3! This major release brings full support for Zarr v3 specification, including the new chunk-sharding extension, major performance enhancements, and a thoroughly modernized codebase. Read more: earthmover.io/blog/zarr3-rel…
Hi, Zarr community! 👋 🚨 Big news: Zarr-Python 3.0 is dropping next week! 🚨 If your project depends on Zarr-Python, make sure to check out the migration guide to get ready for the update. Guide: zarr.readthedocs.io/en/latest/user… More updates soon! 🧑🏻💻

Ryan Abernathey @rabernat
7K Followers 2K Following Scientist and Startup Founder Co-founder and CEO @EarthmoverHQ @pangeo_data steering council member ex-Professor @columbia @lamontEarth
Joe Morrison @mouthofmorrison
29K Followers 2K Following “Controversial industry figure” and General Manager of Remote Sensing at @umbraspace. We operate a private constellation of radar spy satellites.
Matthew Rocklin @mrocklin
9K Followers 88 Following Open source maintainer. @dask_dev author. CEO at @CoiledHQ Additionally I try to be a decent human and help the world from melting.
Qiusheng Wu @giswqs
46K Followers 4K Following Associate Professor @UTKGeography | @Amazon Scholar | Talk about #opensource #geospatial #dataviz #EarthEngine
Tom Nicholas @TEGNicholasCode
676 Followers 693 Following OSS for science, #python, @pangeo_data, @xarray_dev team. Ex-fusion, oceanography, now @_cworthy 🦋 https://t.co/4jprMBeckr
Paige E. Martin @SciencePaige
863 Followers 456 Following Open science. Scientific Python. Physical oceanography. Member of NASA TOPS team. Performing arts. she/her
Zeke Hausfather @hausfath
89K Followers 728 Following "A tireless chronicler and commentator on all things climate" -NYTimes. Climate lead @stripe, writer @CarbonBrief, scientist @BerkeleyEarth, IPCC/NCA5 author
David Ho @_david_ho_
36K Followers 2K Following Climate scientist; ocean carbon/climate solutions. Founder, Bamboo Bike Project; co-founder and CSO @_CWorthy; Professor @UHManoa. @davidho.bsky.social
Chris Holdgraf @choldgraf
8K Followers 1K Following Executive Director @2i2c_org Executive Council @ProjectJupyter co-lead JupyterHub and JupyterBook open communities 🙌 open infrastructure 💻 open science 🧪
Peter Wang 🦋 @pwang
48K Followers 2K Following Chief AI & Co-founder @AnacondaInc; invented @pyscript_dev, @PyData @Bokeh @Datashader. Former physicist. A student of the human condition. bsky: @wang.social
fernandoperez.org @fperez_org
23K Followers 1K Following Inactive account, now at bsky. More on my site: https://t.co/IZVLedbWmF.
Max Grover @mgroverwx
1K Followers 1K Following Atmospheric Data Scientist @argonne - @ValpoWeather + @ATMS_Illinois Alum
Jacob Tomlinson @_JacobTomlinson
2K Followers 639 Following Building @rapidsai and @dask_dev at @NVIDIA. Tinker with kr8s in my spare time. Views are my own. he/him. 🦋 https://t.co/oxaQdmUkxo
Deepak Cherian @cherian_deepak
779 Followers 559 Following @EarthmoverHQ. one of many @xarray_dev maintainers.
Daniel Rothenberg @danrothenberg
2K Followers 2K Following Tech-evangelizing Atmospheric Scientist | co-founder @brightbandtech | Formerly Tech Lead @Waymo, Chief Scientist @tomorrowio_, @eapsMIT
Kyle Barron kylebarro... @kylebarron2
3K Followers 673 Following Creating the next generation of geospatial data tools for Python & the browser with GeoArrow, GeoParquet & GeoRust @developmentseed | he/him 🌈
Robin Cole @robmarkcole
11K Followers 4K Following Tackling the worlds toughest challenges with AI & ML applied to satellite & aerial imagery https://t.co/QmbOWgdfAZ
Wolf Vollprecht @wolfvollprecht
3K Followers 707 Following Robotics, AI & HPC // working hard on @prefix_dev, core developer of #mamba, #xtensor // prev @QuantStack, @ETH, @Stanford
Beto @betolink
919 Followers 1K Following Interesado en política, ciencia y cultura. bsky: https://t.co/7VUKvAcXp7
Robert Jnglin Wills @ClimateAnomaly
2K Followers 998 Following Assistant Professor of Climate Dynamics @ETH_en interested in atmosphere-ocean dynamics of climate variability & change. Posting elsewhere
Jiachen Liu @JiachenLiu7
53 Followers 410 Following Graduate Student in Environmental Engineering @DrexelUniv, previously @colgateuniv
Aaron Meurer @asmeurer
2K Followers 726 Following Posting about AI, Python, @SymPy, and other nonsense.
Katie Lollie @mila_yamila
401 Followers 5K Following Helping YOU step into the unknown✨Conscious Creation + Aligned Prosperity✨7 fig 👶x6 Soul + Strategy Expert… more
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陶醉 @tozu656524
0 Followers 1 Following
Sarina Tremblay @SarinaTrem41041
34 Followers 2K Following
Nick S @Nicky202507
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Homsoh @Homsoh84675
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Ayush Gupta @gupta101a12
16 Followers 142 Following Remote Sensing || Glacier Monitoring || InSAR || Machine Learning || PhD Student @UW
Bijay Raj @Bijay_Raj_B
121 Followers 5K Following A Graduate Student in the United States and an 'Environment, Water and Climate Change Specialist/Professional' from Nepal.
Johnnie Miller @JohnnieMil18293
33 Followers 2K Following
Erik @erikfromalaska
559 Followers 2K Following Working on enjoyable environments. environmental insights: @beadedcloud automated project management: @quayside_ Working @beadedstream
Richard Hares @rich_hares
35 Followers 991 Following
Wolf Vollprecht @wuoulf
19 Followers 54 Following Founder Prefix | Lead Developer https://t.co/Qmio6NQGqx | prev @QuantStack CA : 3Zkj69DfnNM1F4LENeXdgBsM6nhFHQbkXSNddSq9xpFC
Stefan Amberger @__snamber
462 Followers 585 Following Founder of Tilebox - lightweight data management and workflow orchestration
Reecix @Reecix195
72 Followers 2K Following
Ofir Press @OfirPress
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Eric Gagliano @EricGagliano
204 Followers 316 Following he/him | 5th year phd student in @uwTACOlab | remote sensing & the cryosphere | @NSFGRFP fellow | @UTAustin Computational Engineering ‘20 | views are my own
Nicholas K. @nichola13386756
12 Followers 75 Following
Gudrun Lotze @gudrun_lotze
594 Followers 2K Following [email protected]. X-ray physicist w/ love for in situ experiments with nano beams. Enjoys scattering, diffraction, programming. 🚴♀️🏊♀️⛷🌲🥾🧩
Simonhxwhyx @simonhxwhyx
66 Followers 2K Following
Aniket @Dikwickley
55 Followers 110 Following Weather Data Infrastructure | ex @browserstack | GSoC ‘24 @nightwatchjs | username is pronounced Die Quickly
SUNG-CHE LIN @sungchelin
3 Followers 180 Following NTU Master's student. Interesting in climate change, satellite data, extreme rainfall.
Scott Syms @scottsyms
107 Followers 767 Following I work as a software developer for the Government of Canada. Interested in Linux, geospatial, big data, Python and Rust.
James Larson @LarsonOutdoors
136 Followers 386 Following Keeping an eye on the ski forecast ❄️ PhD candidate at Colorado State Uni. - He/him Studying societal-climate interactions
Rocketsss @Rocket0437
60 Followers 315 Following
Serthy @Serthy12g
41 Followers 4K Following
Hogan Gablogian @HoganGablogian
145 Followers 5K Following Cocaine philanthropist & critic. I give Hogan bumps and shame derivative bullshit.
Shelooth @SheloothZ3S
75 Followers 2K Following
Dimitris Kirtsios @dimkirt
123 Followers 814 Following CTO & Cofounder @LYRASENSE_AI | Building the AI-powered workspace for data scientists working with satellite data 🛰🌍
lucky @luckylixu
1 Followers 114 Following
Lily Klinek @LilyKlinek
107 Followers 350 Following PhD Candidate @UCDavis GGE, @UCBerkeley alum, @NSF GRFP Forest carbon cycling, remote sensing, fluxes, maps 'n models Plant Optics Lab (she/her) 🍃🌞🌈 #T1D
David Weinstein @we71816183
20 Followers 101 Following
Tadd Bindas @taddyb33
321 Followers 436 Following ERT Software Engineer, PSU PhD Candidate. Big fan of open-sourced hydrology. 1-0 in soup contests, 0-1 on Jumbotron appearances
AI-Driven Data Qualit... @interzoid
1K Followers 8K Following AI-Driven Data Quality and Data Enrichment Platform. No-code & APIs: Improve the ROI of your data assets: ANY data on ANY topic, visit https://t.co/AwjUAjA7RV
Prem Kumar @prem_thogiti
209 Followers 598 Following Maps, GIS and Remote Sensing geospatial professional and photography lover !!!
Bryan Fuentes @bryandrep
30 Followers 220 Following Quantitative Ecology | Statistical Learning | Geoinformatics | FOSS #rstats #rspatial
Mustafa Al Ibrahim @MustafaGeo
126 Followers 859 Following All things geoscience, computer science, and technology. Opinions are my own and do not represent any entity.
Dr. Amrutha Suresh @Amrutha56485798
84 Followers 403 Following My research interests are climate change, urban flood modelling, Extreme value analysis, Remote sensing and GIS in Water resources Applications
ali mehran @amehranx
260 Followers 646 Following Assistant professor at @SJSU San José State University
Haan @hiro_haan
4 Followers 218 Following
Strong and free. @Ari_Arangga
278 Followers 1K Following Do to others as you would have them do to you
Otaiba Yahya @otaiba144
166 Followers 3K Following I look inside myself, and my ideals have not changed, have not lost their value, have not faded. They are always with me, and I guard them as best I can.
Ryan Abernathey @rabernat
7K Followers 2K Following Scientist and Startup Founder Co-founder and CEO @EarthmoverHQ @pangeo_data steering council member ex-Professor @columbia @lamontEarth
Joe Morrison @mouthofmorrison
29K Followers 2K Following “Controversial industry figure” and General Manager of Remote Sensing at @umbraspace. We operate a private constellation of radar spy satellites.
Matthew Rocklin @mrocklin
9K Followers 88 Following Open source maintainer. @dask_dev author. CEO at @CoiledHQ Additionally I try to be a decent human and help the world from melting.
Qiusheng Wu @giswqs
46K Followers 4K Following Associate Professor @UTKGeography | @Amazon Scholar | Talk about #opensource #geospatial #dataviz #EarthEngine
Tom Nicholas @TEGNicholasCode
676 Followers 693 Following OSS for science, #python, @pangeo_data, @xarray_dev team. Ex-fusion, oceanography, now @_cworthy 🦋 https://t.co/4jprMBeckr
Paige E. Martin @SciencePaige
863 Followers 456 Following Open science. Scientific Python. Physical oceanography. Member of NASA TOPS team. Performing arts. she/her
Aravind 🌍 🛰 @aravindEO
8K Followers 1K Following Founder & CEO, @terrawatchspace | Demystifying Satellite Data and its Applications for Businesses, Climate & Environment | Earth Observation Strategist
Zeke Hausfather @hausfath
89K Followers 728 Following "A tireless chronicler and commentator on all things climate" -NYTimes. Climate lead @stripe, writer @CarbonBrief, scientist @BerkeleyEarth, IPCC/NCA5 author
David Ho @_david_ho_
36K Followers 2K Following Climate scientist; ocean carbon/climate solutions. Founder, Bamboo Bike Project; co-founder and CSO @_CWorthy; Professor @UHManoa. @davidho.bsky.social
Chris Holdgraf @choldgraf
8K Followers 1K Following Executive Director @2i2c_org Executive Council @ProjectJupyter co-lead JupyterHub and JupyterBook open communities 🙌 open infrastructure 💻 open science 🧪
Peter Wang 🦋 @pwang
48K Followers 2K Following Chief AI & Co-founder @AnacondaInc; invented @pyscript_dev, @PyData @Bokeh @Datashader. Former physicist. A student of the human condition. bsky: @wang.social
Will McGugan @willmcgugan
36K Followers 2K Following Terminal hater. Hyperborean Python expert, PSF fellow, author, humanist, husband, sometimes wildlife photographer. He/him @[email protected]
fernandoperez.org @fperez_org
23K Followers 1K Following Inactive account, now at bsky. More on my site: https://t.co/IZVLedbWmF.
Max Grover @mgroverwx
1K Followers 1K Following Atmospheric Data Scientist @argonne - @ValpoWeather + @ATMS_Illinois Alum
Jacob Tomlinson @_JacobTomlinson
2K Followers 639 Following Building @rapidsai and @dask_dev at @NVIDIA. Tinker with kr8s in my spare time. Views are my own. he/him. 🦋 https://t.co/oxaQdmUkxo
Deepak Cherian @cherian_deepak
779 Followers 559 Following @EarthmoverHQ. one of many @xarray_dev maintainers.
Daniel Rothenberg @danrothenberg
2K Followers 2K Following Tech-evangelizing Atmospheric Scientist | co-founder @brightbandtech | Formerly Tech Lead @Waymo, Chief Scientist @tomorrowio_, @eapsMIT
Kyle Barron kylebarro... @kylebarron2
3K Followers 673 Following Creating the next generation of geospatial data tools for Python & the browser with GeoArrow, GeoParquet & GeoRust @developmentseed | he/him 🌈
Andrew Dessler @AndrewDessler
36K Followers 665 Following Prof of Atmospheric Sciences & climate scientist @ Texas A&M; AGU and AAAS Fellow; Native Texan; find out what I think at https://t.co/UNGW2rqvbo
Joris Van den Bossche @jorisvdbossche
2K Followers 126 Following Open source #python developer and teacher. Pandas, GeoPandas and Shapely maintainer. Apache Arrow at Voltron Data Labs https://t.co/Qiwr1KItuh
Inessa Pawson 💙�... @InessaPawson
814 Followers 793 Following @OpenTeamsinc | @numpy_team | @tech_swfl | @AlbusCode | @PyLadiesSoFlo | @PythonSWFL | #MaintainersSummit at @PyCon
Timothy Chen @tnachen
5K Followers 5K Following Founder of @EssenceVenture, Co-host of @ossstartup, @theinfrapod. Ex-CEO of @hyperpilotio. SVP of Engineering @cosmos.
Sebastian Galkin @paraseba
240 Followers 246 Following
Ian Livingstone @ianlivingstone
2K Followers 2K Following 🏃♂️ 🍁 & 🔨 — Co-Founder @keycardlabs, Co-Host @theinfrapod
Glenn Moncrieff @Glennwithtwons
886 Followers 2K Following Mapping and monitoring of biodiversity 🛰️🌍🇿🇦 Spatial data scientist @nature_org. Climbing, waves and trails ⛰️ 🌊 Views are my own
Pete Soderling @petesoder
3K Followers 2K Following Engineer, Entrepreneur, Investor. Founder @DataCouncilAI + @ZeroPrimeVC. Helping 10k engineers start companies 🤓🖖
EF Pro Cycling @EFprocycling
315K Followers 388 Following Exploring the world with @ef_oatly and @ef_aevolo 58 riders, 22 nationalities, 17 languages. This is pro cycling, reimagined.
Outerbounds @OuterboundsHQ
631 Followers 9 Following Building a modern, human-centric ML infrastructure stack with @metaflowOSS
Brad Neuberg @bradneuberg
12K Followers 9K Following Staff Machine Learning engineer @planet. Prev @ Dropbox & Google. Started coworking. Interests: ML, space, Earth Observation, VR. https://t.co/m7fXSRYQW3
WEBKNOSSOS @webknossos
774 Followers 1K Following Visualize, share, segment, and annotate your large 3D images online. #opensource #volumeEM #bioimageanalysis #connectomics #zarr Bluesky: @webknossos.org
Hannah Ritchie @_HannahRitchie
80K Followers 1K Following Deputy Editor @OurWorldinData / Researcher at @UniofOxford / Honorary Fellow at @EdinburghUni @EdCentreCC / Not the End of the World: https://t.co/FoINhggvoR
Altay Prime @tunapedia
203 Followers 431 Following Data Scientist in Energy. Geophysics. Technologist. Send me a DM. Let’s chat!
Seb Tranaeus @TranaeusS
105 Followers 790 Following Investing in climate adaptation @ https://t.co/gNu1RAZW6F | Senior SWE @cur8earth | Writing on startups and adaptation @ https://t.co/S1jZDLJngl
Not Taylor Tomlinson @taylortomlinson
3K Followers 1 Following Parody fan. Not affiliated with fake commentary.
HoloViz @HoloViz_org
2K Followers 104 Following #HoloViz is a set of #OpenSource tools that make data visualization in Python easier to use, easier to learn, and more powerful. Supported by @AnacondaInc.
Tom Preston-Werner @mojombo
37K Followers 4K Following Inventor. Building @PWVentures & @RedwoodJS. Formerly: GitHub cofounder. Board @Gitpod @MoteHydrogen @HackClub. Also: Gravatar, Jekyll, SemVer, TOML.
Ben Glicksberg @BenGlicksberg
1K Followers 842 Following Associate Professor @IcahnMountSinai #DigitalHealth + #PrecisionMedicine + #AI Past: @CharacterBio @UCSF
clem 🤗 @ClementDelangue
155K Followers 5K Following Co-founder & CEO @HuggingFace 🤗, the open and collaborative platform for AI builders
Startup Parent @startup_parent
2K Followers 875 Following We're not using Twitter. Find us on BlueSky and Substack https://t.co/VIIqKquXAO https://t.co/wmtUtkYuhj
TigerBeetle @TigerBeetleDB
8K Followers 1K Following The financial transactions database designed to power the next 30 years of transaction processing.
Dr. Nadia Drake @nadiamdrake
31K Followers 1K Following Science journalist. Former ballet dancer, current overuser of emojis 🤷♀️. Champagneophile. PhD. (she/her) 🇱🇧🇺🇸🏳️🌈 @[email protected]
Natalie Vais @natalievais
3K Followers 1K Following GP @sparkcapital // databases, distributed systems, and developer tools // formerly @AmplifyPartners @GoogleCloud @Oracle // fight on 🌎🌱
Matt Turck @mattturck
124K Followers 2K Following VC at @FirstMarkCap. I'm a VC, so of course I have a podcast: https://t.co/Usnenl0zfI
MotherDuck @motherduck
8K Followers 157 Following Making analytics fun, frictionless and ducking awesome with an unorthodox data warehouse for the post big data era based on @DuckDB in collab with @duckdblabs.
Brittany @brittwalker_
3K Followers 1K Following GP @CRV. Learned some things @Uber @DormRoomFund. "a real one" - @pdrmnvd https://t.co/8syHd9nZuE
Lauren Balik @laurenbalik
32K Followers 1K Following Data Wrangler. Investor. Christian socialist. Human capital, infrastructure, SaaS. Writing things here: https://t.co/mveAEA0OWD
Sarah Catanzaro @sarahcat21
14K Followers 1K Following “All methods are sacred if they are internally necessary” (GP @amplifypartners, prev @canvasvc; Head of Data @Mattermark; @palantirtech; @c4ads)
Carl Sverre @carlsverre
2K Followers 864 Following Exploring technology from first principles. Building Graft and SQLSync. https://t.co/SdLEfZo9eJ
Bane Sullivan @banesullivan
799 Followers 239 Following archived: Twitter isn’t cool anymore, find me elsewhere visualization geek & software engineer. Helped create #PyVista.
Jon Turow @jturow
1K Followers 3K Following Builder. Partner at Madrona Venture Group. Former Amazon AWS.
Evan Tachovsky @EvanTachovsky
1K Followers 923 Following Global Director, @WorldResources Data Lab | Views and typos are my own
CNG @cloudnativegeo
1K Followers 113 Following Where geospatial data users create the future together.
Ignacio Zuleta @iazuleta
806 Followers 1K Following space photography for the masses - imaging products ex-@satellogic ex-@indigoag ex-@planetlabs ex-@ucsf ex-@stanford - opinions are my own
Yoni Nachmany (he/him... @YoniNachmany
677 Followers 264 Following Research Engineer // prev: @myzeusai @linuxfoundation @nytimesrd @mapbox
Jessie Frazelle @jessfraz
131K Followers 229 Following CEO @zoodotdev, 👩🏻💻 @oxidecomputer, 📝 @ACMQueue
Mercury @mercury
36K Followers 308 Following Mercury is the fintech more than 200K ambitious companies and entrepreneurs trust with their finances
Beth Tellman, Phd @pazjusticiavida
3K Followers 1K Following now https://t.co/h3MXVIkrRz co-founder @floodbase; Asst. Prof. Geography @sgde_uarizona; co-founder @umbela_org; satellites, floods, lulc, Latin America
Gilberto Camara @gcamara
11K Followers 1K Following Researcher on Geoinformatics, Land Use Change and Spatial Data Science. Former Director of INPE/Brazil (2005-12) and of Group on Earth Observations (2018-21).
François Voron @fvoron
1K Followers 216 Following Software engineer & open-source maintainer | Creator of @FiefDev | Building for builders @polar_sh
Brandur @brandur
7K Followers 230 Following Engineering @ Crunchy Data. Ex-Heroku, Ex-Stripe. Occasional writer. Themes: web APIs, Postgres, software resilience, and efficient human interfaces.