#radiometry
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nicebyte.bsky.social
out of every resource i've read, the pbrt book remains the most accessible, non-handwavy, and concise primer in radiometry. you don't even have to read the entire book, just the radiometry chapter.
March 6, 2025 at 6:42 AM
momentsingraphics.bsky.social
You cannot get physically-based rendering right without understanding radiometry. My new blog post explains it all, relying on familiar concepts from rendering algorithms as much as possible.
Part 2 will come next week.
momentsingraphics.de/Radiometry1B...
January 12, 2025 at 7:44 PM
tech-timc.bsky.social
#remotesensing #satellite #space #climatechange #lidar #esa #jaxa #atmosphere #radiometry
January 19, 2025 at 1:51 AM
fronkongames.bsky.social
Radiometry, part 2: Spectra and photometry
Published 2025-01-19

#gamedev #gamedevelopment #indiedev
Radiometry, part 2: Spectra and photometry Published 2025-01-19
momentsingraphics.de
October 8, 2025 at 11:16 AM
florianaigner.at
Originalpublikation: link.springer.com/article/10.1...
The Size and Shape of the Oblong Dwarf Planet Haumea - Discover Space
We use thermal radiometry and visible photometry to constrain the size, shape, and albedo of the large Kuiper belt object Haumea. The correlation between the visible and thermal photometry demonstrate...
link.springer.com
May 29, 2025 at 2:25 PM
momentsingraphics.bsky.social
My new blog post explains spectral radiometric quantities, photometry and basics of spectral rendering. This is part 2/2 in a series on radiometry. Learn what it means when a light bulb has 800 lumen and how your renderer can account for that.
momentsingraphics.de/Radiometry2P...
January 19, 2025 at 8:29 AM
fronkongames.bsky.social
Radiometry, part 2: Spectra and photometry
Published 2025-01-19

#gamedev #gamedevelopment #indiedev
Radiometry, part 2: Spectra and photometry Published 2025-01-19
momentsingraphics.de
August 11, 2025 at 6:00 PM
arkosol.bsky.social
Jade radiometry- finalized name for my very funky antennae robot :) #ocart #digitalart #robotoc
September 11, 2026 at 4:23 AM
lukemeister.bsky.social
I love papers that combine radiometry and owls.

(via @mapperwocky.bsky.social)
samillingworth.com Prof Sam Illingworth @samillingworth.com · Jan 13
🦉 Owls are Camouflaged by Moonlight 🌙

A new study has found that barn owls' white feathers help them blend into moonlit skies, making them nearly invisible to prey like rodents.

This unique nocturnal camouflage boosts their hunting success.

🔗 doi.org/10.1073/pnas...

#SciComm #Owls 🧪
Nocturnal camouflage through background matching against moonlight | PNAS
Camouflage is often considered a daytime phenomenon based on light and shade. Nocturnal camouflage can also occur, but its mechanistic basis remain...
doi.org
January 13, 2025 at 10:42 PM
sfjoh.bsky.social
Designing spectrophotometers at Bomem Inc, one of Quebec's pioneer opto-electronic R&D companies, 1980s.

#photography #design #manufacturing #business #optronics #FTIR #radiometry #photometry #spectroscopy #electrooptics #bw #monochrome #bwphotography #filmphotography #film #Vanier #Quebec #Canada
April 14, 2026 at 3:20 PM
gpvm.bsky.social
Next week, we are going to read "Radiometry, part 1: I got it backwards"

www.meetup.com/graphics-pro...
Radiometry, part 1: I got it backwards, Wed, Jan 22, 2025, 7:00 PM | Meetup
This week, we will read [Radiometry, part 1: I got it backwards](http://momentsingraphics.de/Radiometry1Backwards.html) Join our discord server: [https://discord.gg/6TTRA5
www.meetup.com
January 16, 2025 at 4:24 AM
spin.pyokosmeme.group
eg microwave radiometry. idk if anyone has done it with BT but i think you could probably find a way to do it with some error bars
September 18, 2026 at 8:37 PM
boblynn.bsky.social
Hedwig Kohn: Measuring Light, Defying Erasure
voxmeditantis.com/2025/11/15/h...

#WomenInSTEM #STEM #Radiometry #Spectroscopy #Flamespectroscopy
Hedwig Kohn: Measuring Light, Defying Erasure
A German-Jewish physicist recounts her 17-year wait for academic recognition, her dismissal by the Nazis, and her brother’s murder in the Holocaust. She discusses how 70 international letters…
voxmeditantis.com
November 15, 2025 at 7:32 PM
seaice.de
dx.doi.org/10.2139/ssrn...
Beyond L-Band: Wideband (0.4–2 GHz) Radiometry for Observing Surface Salinity in Cold Seawater
Sea surface salinity (SSS) is a key variable for understanding ocean circulation, freshwater fluxes, and climate variability. While L-band radiometry (1.4 GHz)
dx.doi.org
February 6, 2026 at 3:07 PM
seaice.de
New paper alert: 🌍🛰️
Y. Zhou et al., "Satellite Microwave Radiometry at L-Band for Monitoring Earth’s Essential Climate Variables: From Fundamental Physics to Sixteen Years of Global Climate Observations and Beyond," in IEEE Geoscience and Remote Sensing Magazine
ieeexplore.ieee.org/document/114...
Satellite Microwave Radiometry at L-Band for Monitoring Earth’s Essential Climate Variables: From Fundamental Physics to Sixteen Years of Global Climate Observations and Beyond
L-band satellite radiometry has emerged as an important tool for monitoring Earth’s essential climate variables (ECVs). It relies on spaceborne radiometers operating in a protected band (1.4–1.427 GHz...
ieeexplore.ieee.org
April 1, 2026 at 8:42 PM
brockmannconsult.bsky.social
🌊🌍 Our colleague Jorge García is in Venice 🇮🇹 for the #FRM4SOC training on Ocean Colour Radiometry — 2 weeks of hands-on science at San Servolo Island + the Acqua Alta Oceanographic Tower 🌅
This training brings together experts from all over the 🌐
#OceanColour #RemoteSensing #Copernicus #Radiometry
July 15, 2025 at 11:10 AM
comraderobot.bsky.social
trying to fix radiometry on my radio telescope, and i think its readings have temperature dependence. this seems to confirm that

anyway who’s up correlating their variables
July 1, 2023 at 4:38 AM
parsaie.bsky.social
"Thus one nit is one lux per steradian is one candela per square meter is on lumen per square meter per steradian. Got it?" - Jim Kajiya

(Annual reread of PBRT Radiometry chapter because I keep forgetting)
March 29, 2025 at 5:13 PM
ericlengyel.bsky.social
It's got lots of great stuff with two big chapters covering mathematics (including Grassmann / geometric algebra) and another chapter covering things like radiometry, reflectance models, scattering, and ray tracing. There's substantial overlap between this field and computer graphics.
January 23, 2026 at 12:50 AM
seaice.de
G. Macelloni et al., "Wideband Radiometry From P to S Band for Monitoring Polar Regions," in Proceedings of the IEEE, doi: 10.1109/JPROC.2026.3653571.

#Microwave #Ocean #Antarctica #Cryosphere
ieeexplore.ieee.org/document/113...
Wideband Radiometry From P to S Band for Monitoring Polar Regions
This article reviews existing and planned contributions of spaceborne microwave radiometry from P to S band to new measurements of key geophysical variables with a particular focus on the polar region...
ieeexplore.ieee.org
January 25, 2026 at 9:32 AM
chrononaut.bsky.social
ooooof

(more intel from @CRUDEOIL231 on the bad place, comment in alt)
I looked up Sentinel-3 satellite imagery for cross-validation. ESA also runs the Sentinel-3. While Sentinel-2 is essentially just a single high-res multispectral optical payload (MSI), Sentinel-3 packs a whole suite of sensors; optical (OLCI), precision thermal radiometry (SLSTR), and radar altimetry (SRAL). The spatial resolution gets chopped hard versus Sentinel-2 and the swath is huge, but it's more than sharp enough to flag severe thermal anomalies across open desert scrub. Breaking down the frames. OLCI is the familiar optical sensor. Pulled the OLCI L1B baseline imagery and ran the Highlight Optimized Natural Color processing layer to keep the blown out white pixels from clipping over high-albedo terrain. Then you have SLSTR L1B—provides the baseline thermal infrared and optical observations. It is used to verify sea/land surface radiant temperatures and active fire pixels. I selected the F1 Brightness Temperature layer, a dedicated mid-wave/thermal infrared band designed specifically for active fires (such as wildfires and gas flares). The delta between yesterday's pass and today is night and day. Again: zero interest in feeding the toxic bull/bear crossfire. Just sharing OSINT observations through open source feeds.
September 10, 2026 at 10:05 PM
deaddropholiday.bsky.social
Whilst it's true to say weather is complex & chaotic & therefore impossible to predict with absolute certainty they have the technology (microwave radiometry amongst other methods) to accurately measure the liquid water content of clouds. The fact that this information wasn't relayed is suspicious
July 6, 2025 at 7:38 AM
dgarmstrong.bsky.social
Peering Beneath the Surface: How Reliable is Microwave Radiometry for Charcot Foot? #Charcot #Thermography #Thermometry diabeticfootonline.c...
April 22, 2026 at 10:25 PM
lynncarter.bsky.social
Jim Head is giving an update on the Chinese Venus Volcano Imaging and Climate Explorer (VOICE) mission. Payload polarimetric SAR, microwave radiometry, multi-spectral UV/IR imaging. 3-4 year mission is the planned. #vexag2024
November 17, 2024 at 9:21 PM
isp-uv-es.bsky.social
🛰️ Last week @mariapiles.bsky.social shared “CIMR multi-frequency products advancing from L-band heritage” at #LPS25.

🌐 A multi-band microwave radiometry mission continuing the L-band legacy (SMAP/SMOS) with key products: soil moisture, sea ice thickness & more.

🔗 lps25.esa.int/programme/pr...
June 30, 2025 at 10:51 AM