I had the happy realization the other day that conservation of radiance / étendue is purely geometrical. Radiance is just proportional to the size of the set of all lines through two area elements, and the product of area and solid angle is an invariant over this set.

#optics #radiometry

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…

Hedwig Kohn: Measuring Light, Defying Erasure
voxmeditantis.com/2025/11/15/h...

#WomenInSTEM #STEM #Radiometry #Spectroscopy #Flamespectroscopy

Original post on mastodon.social

DART radiative transfer model (Earth sciences 🌍)

DART is a 3D radiative transfer model, designed for scientific research, in particular remote sensing. Developed at CESBIO since 1992, DART model was patented in 2003. It is freeware for scientific activities […]

🌊🌍 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

Original post on mastodon.social

DART radiative transfer model (Earth sciences 🌍)

DART is a 3D radiative transfer model, designed for scientific research, in particular remote sensing. Developed at CESBIO since 1992, DART model was patented in 2003. It is freeware for scientific activities […]

#remotesensing #satellite #space #climatechange #lidar #esa #jaxa #atmosphere #radiometry

#Conference | #EOSAM24

The #EOSAM24 will take place in Napoli, Sept 9-13!
Perfect opportunity to re-discover
‘Radiometry of wet surfaces’, directed by Lionel Simonot.
Program: bit.ly/4dxOy8x
Book: bit.ly/3WfjaD7
#GDRAppamat #InstitutOptique #PhotonicsWest
#Radiometry #EDPSciences