
Information service developer in Ocean Data Bank (ODB). Full-stack, data science, also interested in ecology studies. #OpenAPI https://xitter.gq/t.co/X7ZVdzGZfl
Taiwan
Joined February 2010
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We have an interesting idea to showcase #OpenAPI. ODB has developed CTD (temperature/salinity), SADCP (current) API, & some global marine data APIs, consolidated on api.odb.ntu.edu.tw/hub
Integrating features e.g. SwaggerUI, Cesium globe, API pipeline & validation (to be conti..
Chiyu Weng retweeted
“We had to find a way and we did. Looking back, we were the luckiest people in the world; there was no choice but to be pioneers.” —Margaret Hamilton
Rest in peace, Margaret. Your trailblazing work leading the development of the on-board flight software for the Apollo spacecraft will forever be remembered. 🫡
Chiyu Weng retweeted
An incredibly well-timed Landsat 9 pass captured the effects of yesterday’s catastrophic glacier collapse near the Nepal–Tibet border. The event was so massive that it was detected by seismometers around the world.
Chiyu Weng retweeted
NASA has released one of the most detailed visualizations ever created of Earth’s ocean currents.
Using data from satellites and advanced ocean models, the map reveals massive rivers of moving water, swirling eddies hundreds of miles wide, and the powerful Gulf Stream carrying warm water from the Gulf of Mexico across the Atlantic.
Chiyu Weng retweeted
🎧 Recorded a new morning walk this morning, hard one to share because I'm sure people will want to roast me for it but have been transparent up until now so publishing it anyways.
Chiyu Weng retweeted
I've never felt this much behind as a programmer. The profession is being dramatically refactored as the bits contributed by the programmer are increasingly sparse and between. I have a sense that I could be 10X more powerful if I just properly string together what has become available over the last ~year and a failure to claim the boost feels decidedly like skill issue. There's a new programmable layer of abstraction to master (in addition to the usual layers below) involving agents, subagents, their prompts, contexts, memory, modes, permissions, tools, plugins, skills, hooks, MCP, LSP, slash commands, workflows, IDE integrations, and a need to build an all-encompassing mental model for strengths and pitfalls of fundamentally stochastic, fallible, unintelligible and changing entities suddenly intermingled with what used to be good old fashioned engineering. Clearly some powerful alien tool was handed around except it comes with no manual and everyone has to figure out how to hold it and operate it, while the resulting magnitude 9 earthquake is rocking the profession. Roll up your sleeves to not fall behind.
Chiyu Weng retweeted
Performance Hints
Over the years, my colleague Sanjay Ghemawat and I have done a fair bit of diving into performance tuning of various pieces of code. We wrote an internal Performance Hints document a couple of years ago as a way of identifying some general principles and we've recently published a version of it externally.
We'd love any feedback you might have!
Read the full doc at: abseil.io/fast/hints.html
Just a test (850hPa GFS wind) on Ocean APIverse api.odb.ntu.edu.tw/hub/earth…
Chiyu Weng retweeted
Citizens cut query times from 80 to 8 minutes by adopting Polars, but the transformation went beyond speed. It provided, what they called, a "grammar of business logic."
Teams moved from intricate nested loops to readable, composable expressions, drastically improving maintainability and unlocking complex features without heavy backend engineering.
Read the full case study here: pola.rs/posts/case-citizens/
Chiyu Weng retweeted
🌦️ Downloading, Processing, and Visualizing WorldClim V2.1 Climate Data (Historical + CMIP6 Future Scenarios) in R
👉 Watch the full process on YouTube: youtu.be/GD7pU_TmlRw
Sincere gratitude to @milosmakesmaps
#ClimateAction #GIS #wildfire #consultant #rstats
Chiyu Weng retweeted
Do you know about Open Geospatial Solutions?
The Open Geospatial Solutions (opengeos) GitHub organization hosts a collection of open-source geospatial software projects. The projects are developed by a community of geospatial software developers and researchers
Their collection as of today:
Python Packages
- earthformer: ow.ly/2onl50PZm8i
- geemap: ow.ly/AK7x50PZm88
- geoai: ow.ly/64wE50PZm83
- geospatial: ow.ly/1PPM50PZm8h
- geospatial-ml: ow.ly/p9BPf50PZm86
- leafmap: ow.ly/6wJR50PZm8m
- lidar: ow.ly/rxTP50PZm8j
- mapwidget: ow.ly/QfH250PZm7Y
- open-buildings: ow.ly/7L2M50PZm81
- pygis: ow.ly/xtX650PZm8f
- segment-anything-py: ow.ly/mKnM50PZm8c
- segment-geospatial: ow.ly/moZi50PZm7X
- whitebox-python: ow.ly/JF8I50PZm8o
- whiteboxgui: ow.ly/vPyM50PZm82
Data Catalogs
- geospatial-data-catalogs: ow.ly/ocT050PZm8p
- aws-open-data: ow.ly/CNJQF50PZm8b
- aws-open-data-geo: ow.ly/t1Vz50PZm7W
- aws-open-data-stac: ow.ly/i5Ir50PZm8k
- Earth-Engine-Catalog: ow.ly/UW9150PZm8e
- NASA-CMR-STAC: ow.ly/KX0j50PZm8l
- stac-index-catalogs: ow.ly/YQma50PZm85
- maxar-open-data: ow.ly/CI7j50PZm84
- data: ow.ly/3muu50PZm7Z
For more, follow them here: ow.ly/sFZf50PZm87
open.github.org 🐦 @giswqs [email protected]
#usshutdown has caused NOAA data to be unavailable or unstable. Noticed that the timestamps in the GFS headers have been inconsistent for several days. Hope the shutdown ends soon.
Demo link: shorturl.at/jYkMz
See also facebook.com/reel/3387557208…
Chiyu Weng retweeted
The 1.4 release of @duckdb supports using a DuckDB database to serve vector tiles!
Of course, I had to try this out in R.
Check it out: all 242,000 US Census block groups dynamically served as vector tiles from a DuckDB database, displayed on a MapLibre map from R in Positron.
Chiyu Weng retweeted
Mapping ocean currents sounds simple.
But it's one of the hardest problems in climate science.
NASA spent decades developing ECCO to solve it.
Here's the breakdown:
#JaneGoodall RIP 2025/10/1
Example 2: Jan 2025 — SST anomalies over the Nino3.4 region showing a clear La Niña signal, plus GFS wind animation with strong easterlies. Relive in full-screen, Windy-style animation here shorturl.at/Y8bvv























