celoyd

Joined 20 years ago

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287
Member since
Feb 19
Charlie Loyd · [my username]@gmail.com · http://basecase.org/env/ · @vruba.

I work at http://mapbox.com, mostly on satellite imagery, but I comment here as myself. (If you’re interested in something we’re doing: charlie@ the company’s domain.)

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Recent submissions

Comment · 10 years ago
Done. Thank you!
Comment · 10 years ago
Comment · 10 years ago
I know it’s odd, but I wanted it not to be visible all at once.
Comment · 10 years ago
Oh, hello! I enjoyed your motion interpolation experiments, and I look forward to the blog post.
Comment · 10 years ago
Comment · 10 years ago
Also, it'd be nice to be able to pause it and really take in the colors.

You can zoom in on the NICT browser: http://himawari8.nict.go.jp

Their color mix is more cloud-oriented, so it’s darker, but at least the image quality is higher than the video’s.

Comment · 10 years ago
Sorry. If there’s one thing I’ve learned from this project, it’s that video support is hard.

I’m happy to take advice (preferably in the form of ffmpeg flags).

Comment · 10 years ago
Well-worn gray: https://en.wikipedia.org/wiki/Albedo

It’s a loose comparison, since both asphalt and the moon’s surface vary. Plus, there are tricky things like specular reflection and the opposition effect.

How can its color be compared to something on earth? Doesn't the (lack of) atmosphere have some effect?

You can hold a moon rock up against something on Earth. Or you can look at Earth and the moon from a distance with the same sensor, which is what Himawari-8 is doing.

The atmosphere does affect things: A huge plain of moon rocks on Earth’s surface would look bluer (hazier) than the moon would in the same picture from Himawari-8 (or an Apollo Hasselblad, etc.). And a moon rock in sunlight on Earth will look slightly yellower than one in the same light on the moon. But your eyes are constantly adapting to the surrounding illumination. Color perception is really complicated.

Comment · 10 years ago
Casual readers may not get your reference – the idea for DSCOVR literally came to Al Gore in a dream. I still think this is hilarious.

One can indeed argue that DSCOVR has merit, and people including climate scientists do. (Though arguably it’s really too early to judge either way until there’s time for publications to come out of its data.) Earth’s radiation budget is surprisingly underdetermined, considering its importance.

But it’s certainly a fair criticism of DSCOVR as launched that it’s not state-of-the-art. That’s because it was delayed for reasons of politics, only loosely disguised as reasons of science.

The only places I’d push back on your remarks are:

1. The “Uh no”, which is unsubstantiated (perhaps just facetious, but I’m sensitive because I supported my point relatively laboriously, with the links); and

2. the idea that the NYT should refrain from pointing out political interference in science funding.

Comment · 10 years ago
I think they’re just responding to my joke with a joke ;)
Comment · 10 years ago
I made this, and I’m happy to answer questions. (And to politely ignore contentious remarks about how I characterized GOES-R.)
Comment · 11 years ago
Discovery at Udvar-Hazy is why I started this project. I saw the serial numbers on the tiles – almost close enough to touch on tiptoe – and remembered reading about some kind of database. I imagined a visualization with a line for every tile over time, and decided to find the records to make the viz.

That was two years ago. I’ve asked a lot of people since then, but after making a web site for the project (on @doingitwrong’s advice), this week is by far the most attention it’s gotten. I’m hoping this is what finally gets word to someone who knows something.

Comment · 11 years ago
How odd. I just switched fonts entirely (though still from Google Fonts). If anyone has a sense of what’s going on here, I’d love to fix it properly.
Comment · 11 years ago
Comment · 11 years ago
Fixed (I hope). Thanks for reporting.

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