Optics of Photosynthesis Lab

This week in @Nature, on our long-term field observation in @HyytialaHY, @INAR_fin, @ForestSciences. go.nature.com/4eRyFtv. Collecting key data to understand link between radiation and plant physiology.

We join CREDIBLE action to build carbon farming markets and policies we can trust! project-credible.eu @helsinkiuni takes the lead in the focus group of proximal sensing and digitalization for carbon farming. Interested in joining the focus group? ➜ @PaulinaRajewicz

Season's greetings from OPL! Tested: 1)Red #Poinsettia leaves absorb PAR but do not fluoresce👉they do not photosynthesize, 2)We have a fluorescent logo😮! No wonder #SIF is great at capturing the optical expression of photosynthesis in its purest state. @ForestSciences,@INAR_fin

You can find some more information about the method here www2.helsinki.fi/en/node/111526

Ever wanted to take a hemispherical photo up in the canopy? our new drone method solves this problem...sans hemispherical camera! @NewPhyt nph.onlinelibrary.wiley.com/doi/10.1111/np…

#Hyytiälä has been canofied! app.cano.fi

@TropiDry @CanopySEE @PlantSpps @ForestSciences It works on my iPhone 7. Please try it out, feedback appreciated!

@OptPhotoLab @CanopySEE @PlantSpps @ForestSciences Works for iPhone?

Is your hemispherical photography kit weighing you down? Craving spontaneous #forest structure-related fieldwork? Then app.cano.fi is for you! Use Canofi to produce hemispherical photos with your phone, no additional hardware required. @PlantSpps @ForestSciences

Canofi is a work in progress (source code on GitHub) improvements and suggestions welcome via info@cano.fi

Canofi works by transforming panoramic imagery to a fish-eye type projection in the comfort of the web-browser using the excellent @pyodide. Find out more here cano.fi

We are proud to share our @NaturePlants Perspective on solar-induced chlorophyll fluorescence: what is it? what could it be used for? what are the next steps? Check it out: rdcu.be/ctIOC @INAR_fin @viikki_plants @ForestSciences @SuomenAkatemia helsinki.fi/en/news/carbon…

@vis_tronquitos We were more than happy to host you Vicent! And you are always welcome back, we are always short of brilliant students 😊! Enjoy the well deserved late summer break

Dancing in the drought. Dynamic canopy structure and foliar physiology are captured by Solar-induced fluorescence (SIF) during water stress. Read our open access paper: doi.org/10.1016/j.rse.… @INAR_fin @Viikki_plants @AgriForHelsinki @fgi_nls @dronefinland

We simulated the faint glow of #fluorescence in a virtual 3D forest. Check out the open access paper here #f0030" target="_blank" rel="nofollow noopener">sciencedirect.com/science/articl… #TLS #LaserScanning #photosynthesis

Check out our new paper (congrats Troy @photo_spec ) showing how well SIF can be used for evergreens: Mechanistic evidence for tracking the seasonality of photosynthesis with solar-induced fluorescence pnas.org/content/early/…

Groundbreaking method from @OptPhotolab to observe from distance the full spectrum of fluorescence of mature trees in the forest. This brings us one step closer to remote sensing of terrestrial carbon sinks and vegetation health. @INAR_fin @helsinkiuni bit.ly/2vY4bD2

The chl fluorescence emission distribution of whole tree crowns cannot be measured, right? It can at night! New @OptPhotoLab work sciencedirect.com/science/articl… #remotesensing #photosynthesis #Fastcam17

Check out new work from @OptPhotoLab member Paulina Rajewicz who measured fluorescence from broad leaves and needles mdpi.com/2072-4292/11/5… @RemoteSens_MDPI

@ryuyr77 @kinznice @geoxiyang @chr_fronge @DJPMoore @Wkolby That is a really good idea (camera)! We will ask details :)

@ryuyr77 @kinznice @geoxiyang @chr_fronge @DJPMoore @Wkolby Great work! Yes, having a sensor-branch-shoot-needle that move together (in the wind) is the key to keep needles in place for months. Yields typically stabilize to the new light environment after 2-3 days. Good luck with measurements!

ChlF yield in pine forest in winter. Putting fresh leaf led much higher ChlF yield, confirmed #monipam works well. Understanding #SIF in ENF across seasons. Nice work by @kinznice. Binding sensor to branch is the key. @geoxiyang @OptPhotoLab @chr_fronge @DJPMoore @Wkolby