ElPeque

5 ms·

1.
by ElPeque 1y ago
It seems like Safari's support of chunked-streamed mp4 is lacking. If you have issues please consider trying Chrome or Firefox for now.
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by ElPeque 1y ago
Ok. Should work now. :)
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by ElPeque 1y ago
Oh shit. I fucked up. I'll fix it in a moment :facepalm:
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Show HN: GribStream – Query Weather Forecasts Like a Database(gribstream.com)
13 points by ElPeque 1y ago|8 comments
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by ElPeque 2y ago
Since TODAY GribStream.com now also leverages the NOAA Rapid Refresh (RAP) model https://rapidrefresh.noaa.gov/ . It enables SkewT LogP charting for which I added a python example on the github repo. I hope you will find i
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Show HN: Creating Skew-T Log-P diagrams from the Rapid Refresh (RAP) model(github.com)
6 points by ElPeque 2y ago|0 comments
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by ElPeque 2y ago
Every hour these models forecast every hour 10 or 15 days ahead. The further ahead they become less accurate of course. Having all historical weather forecasts is useful to backtest how accurate the model is because you can compare what was
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by ElPeque 2y ago
Definitely more models right now. GribStream.com will be supporting many other models soon. But open-meteo free access is only for non-commercial use. GribStream.com allows any use. Also, can open-meteo query forecasts 10 days out at hourly
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by ElPeque 2y ago
Thank you!
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by ElPeque 2y ago
Shoot me an email and I'll reach out when I can implement selecting based on bounds. Out of the top of my head, re-slicing into grib files for the response is probably a big lift but some of the other formats like maybe netCDF or geoTI
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by ElPeque 2y ago
This is really great feedback. The truth is that the pricing model is being figured out, so if you have a specific type of use in mind maybe we could figure out what works best and it might become the actual default pricing model. I tried t
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by ElPeque 2y ago
Yeah, exactly. I basically scrape all the grib index files to know all the offsets into all variables for all time. I store that in clickhouse. When the API gets a request for a time range, set of coordinates and a set of weather parameters
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by ElPeque 2y ago
Oh wow. Those are really cool visualizations. I can't compete :P
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by ElPeque 2y ago
True! Fixed! Thank you!
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by ElPeque 2y ago
In theory it could be done. It is sort of analogous to what GribStream is doing already. The grib2 files are the storage. They are sorted by time in the path and so that is used like a primary index. And then grib2 is just a binary format
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by ElPeque 2y ago
The point of GribStream is that you don't need to download the grided data (cause as you say it is huge! and it grows many Gb every single hour for years). This is an API that will do streaming extraction and only have you download wha
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by ElPeque 2y ago
Interesting! Can you describe how it worked? Who knows, maybe I could make it happen. I've been thinking of creating a more involved "demo" to entice traffic/links/SEO. Maybe something like this could be it.
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by ElPeque 2y ago
Grib2 files are much more compact than netCDF, just less convenient to use. But GribStream takes care of that and just returns you the timeseries for the coordinates you need. Besides using the usual index files to only do http range reques
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by ElPeque 2y ago
Glad you like it! I hope it will suit your work.
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by ElPeque 2y ago
Interesting! This is a little different though. This dataset is is part of the AWS Open Data program and so it is freely available from S3. By running the API within AWS then you get a massive latency and bandwidth advantage. So with GribSt
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Show HN: Gribstream.com – Historical Weather Forecast API(gribstream.com)
71 points by ElPeque 2y ago|35 comments
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by ElPeque 2y ago
Excited shamelessly promote my indie hacking project, GribStream, with the HN community! GribStream offers full access to historical weather data and forecasts through an efficient API. It's built for meteorologists, researchers, and a
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GribStream: Historical Weather Forecasts API – with free tier(gribstream.com)
2 points by ElPeque 2y ago|1 comments