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djleni

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Show HN: hodo.graphics – Mobile first meteorology models

hodo.graphics
4 points·by djleni·il y a 3 ans·1 comments

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djleni
·il y a 2 mois·discuss
Maybe different manufacturers have very different implementations?

My partner’s Hyundai has a lane keep assist and it will always use the commanded input over what the computer thinks.

The computer only takes over if you have very loose grip on the wheel and you drift.
djleni
·l’année dernière·discuss
I’m sure some people don’t like any deportations, but I think the reason the bulk of people are upset with the current administration’s approach is its insane militarization, lack of due process, refusal to identify, apparent targeting of normal hard working people, sending people directly to foreign prisons, and sending people to war torn countries they are not from with minimal notice and no opportunity to contest.

Not that deportations are happening.
djleni
·l’année dernière·discuss
> the inverse is that it is “$1.49 billion” that Americans are not earning

This is only true if there are an equivalent number of unemployed Americans willing to work the same jobs for the same wage located in the same areas.
djleni
·il y a 2 ans·discuss
Can’t speak for everyone else but I almost exclusively use it for what you mentioned:

> when exploring new solutions and "unknown territory"

If it’s something I have no idea how to do I might describe the problem and just look at the code it spits out; not even copy pasting but just reading for a basic idea.

> how do you compare it with "regular search" via Google/Bing

Much worse if there’s a blog post or example in documentation that’s exactly what I’m looking for, but, if it’s something novel, much better.

An example:

Recently asked how I could convert pressure and temperature data to “skew T” coordinates for a meteorological plot. Not something easy to Google, and the answers the AI gave were slightly wrong, but it gave me a foot in the door.
djleni
·il y a 2 ans·discuss
It turned my black dog into a beagle!
djleni
·il y a 2 ans·discuss
Your top level comment got flagged but:

some napkin math suggests the additional heat can’t solely be from those sources.

According to https://www.climate.gov/news-features/understanding-climate/...

The ocean gained heat at a rate of 0.83 watts per square meter from 1993-2022.

The same article also says there are more than 360 million square kilometers.

This gives us 0.83 * 1e6 * 360e6 = 2.988e+14 watts heating in the ocean in that time period.

A watt of electricity ends up becoming a watt of heat, and according to https://www.iea.org/reports/electricity-information-overview... the world used 22,000 TWh in 2022. Converted to power, thats 22e3 * 1e12 / 24 / 365 = 2.5e12 watts.

It’s not right to use power here and energy should be used instead because that wattage will be lower each previous year, but, even at that peak, it’s not enough (by two orders of magnitude) to account for even just the ocean warming, let alone land or atmospheric heating.

The mechanism for CO2 trapping heat is well understood: https://youtu.be/sTvqIijqvTg?si=M_5uZwjNCThm3swH
djleni
·il y a 3 ans·discuss
Based on the people I’ve heard make points like this, I don’t think it does convince anyone.

I think this type of argument fills a totally different role:

“I don’t believe or care about climate change and would like to keep my life as is, but this creates cognitive dissonance when someone shows it’s bad. I can use this argument to say your idea is as bad too! Dissonance lessened.”

At least when I’ve heard it it’s that context. The person saying it doesn’t really care if it’s accurate or equivalently bad, just that they have a gotcha to say when presented evidence for wind being good.
djleni
·il y a 3 ans·discuss
Hello!

hodo.graphics is a viewer for meteorological data, designed to be mobile friendly.

I started this project out of a hobbyist interest in meteorology and severe weather. There are many other websites that allow you to view this data (most of it is free from NOAA), but most are a train wreck on a mobile device.

One of the big differences with hodo.graphics vs. a site like weather.cod.edu is non of the graphics are baked in. They are delivered to the client as either a GeoTiff or GeoJSON, allowing the client to define rendering.

This means the data can be recolored, displayed in different ways, zoomed and panned, etc.

Currently hodo.graphics includes outlooks from the Storm Prediction Center, and HRRR and GFS forecast models.

On demand skew t / log p charts and hodographs can be generated at any point, currently just for HRRR but soon for GFS.

Additional models will come if I can get any users :)

Would love feedback and I’m happy to answer any questions.

FYI: no severe weather today so the default SPC view won’t show anything. Open up the HRRR model to see some data.
djleni
·il y a 3 ans·discuss
I would really love to make a ferrofluid visualizer but instead of being part of the signal path, it’s a desk knick-knack with a microphone and wall power… Hmm
djleni
·il y a 3 ans·discuss
https://hodo.graphics

Mobile friendly meteorology data and forecasting tool.

Meant to be a better mobile option than a site like the College of DuPage model viewer.
djleni
·il y a 3 ans·discuss
Yeah perhaps I’ve been misinformed but this kept saying that countries with more renewables had less efficient grids and electricity costs were higher.

Am I misreading it? I thought the exact opposite was true and nowadays renewables are generally cheaper.
djleni
·il y a 3 ans·discuss
Have I lost my mind?

“kids spending their after school time doing homework”

Uh… what do you think homework is for? When is it traditionally done?

Have you ever done homework before???
djleni
·il y a 3 ans·discuss
Disturbing?
djleni
·il y a 3 ans·discuss
Heh, I didn’t know who this was, read the intro, thought “have you tried CDK?” only to find the author worked on it.
djleni
·il y a 3 ans·discuss
To put it simply, the value prop is an experience wildly different than normal experiences.
djleni
·il y a 3 ans·discuss
DAC seems like a distraction to me.

In what situation does investment in DAC make sense over replacing fossil fuel infrastructure?

To run DAC, you need power. Why use dirty coal power to run DAC instead of using that money to replace the coal power?

What if the DAC plant is powered by green energy? Use that energy to replace fossil fuel consumption.

What if it’s powered by a 100% renewable grid with surplus that’s isolated? Move currently fossil fuel dependent industry to this grid! Put a data center there instead of somewhere that burns coal.

Sure, we should research it, but until we’re running 100% renewables it always makes more sense to build a solar farm instead.

Maybe an apt analogy: building DAC infrastructure right now is like sending a contractor to a currently burning building to install a fire sprinkler system.
djleni
·il y a 3 ans·discuss
I firmly don’t care which plug wins as long as there is _a_ standard…

But with the wind blowing this way will there be an adapter for CCS vehicles already on the road? Or does one already exist?
djleni
·il y a 3 ans·discuss
For what it’s worth, the average interpretation I’ve seen from climate scientists is:

- No, we won’t hit scorched earth Venus-like runaway warming.

- If we don’t reduce emissions drastically, greenhouse gas warming plus various feedbacks will cause extreme weather, render some parts of the world unlivable due to wet bulb temperature, and overwhelm unprepared infrastructure, costing huge amounts of money and creating millions of migrants.

So, not the end times, but definitely dark times.

If you sprinkle a bit of pessimism about current politics it’s not a stretch to assume we probably won’t handle those impacts gracefully, or achieve the drastic emissions cuts required to avoid them.
djleni
·il y a 3 ans·discuss
These stories describe wildly less advanced, less technologically complex, and less invasive tracking than the Reddit post.

Reddit post is made up. Good fiction writing.
djleni
·il y a 3 ans·discuss
Could you explain further?

How does:

> reducing methane emissions won't change a thing, compared to CO2 emissions.

Follow from:

> once methane emissions reach a steady level