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Markus Löw @markusloew.bsky.social · 2h

Spring cleaning and maintenance trip to Au-Tum Tumbarumba this week! It got a bit wet and foggy up there 😐. But a good trip anyway! #flux data analysis for the year so far resulted in some interesting challenges too. #eddycovariance #unimelb #tern #tern

Nothing much to see from the tower looking at the surrounding forest in the #drizzle and #fog

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Markus Löw @markusloew.bsky.social · Sep 5

Check ups, and updates at some of my #eddycovariance #fluxtowers, big and small, this week. Data coming in nicely. #ozflux

Agricultural flux tower in a farming system

Above the canopy on top of the Whroo flux tower

Eddycovariance equipment above the forest

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Markus Löw @markusloew.bsky.social · Aug 15

Good news! We installed a new #eddycovariance flux tower this week during a too short trip to the outback. This time we're monitoring salt bush vegetation. It is a fantastic opportunity to work in an arid landscape. Seemingly endless plains, great scenery, and ever changing colours. #ozflux

Eddycovariance flux tower in a saltbush landscape

Sunset and rainclouds in the saltbush plains

Heading towards the sunset after a ten+ hours trip

Perfect location for a small #eddycovariance tower: flat in all directions!

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Markus Löw @markusloew.bsky.social · Jul 11

Had a great time at the #fluxnet 2025 conference @fluxnet.bsky.social Great people, new ideas, new challenges. 😃

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Markus Löw @markusloew.bsky.social · Jun 22

Alpine forests face collapse after bushfires and lack of seeds
www.abc.net.au/news/2025-06...

Alpine forests face collapse without urgent reforestation, say scientists

Bushfires and a lack of seed have created a "ticking time bomb" in Victoria's alpine and mountain ash forests, scientists are warning.

www.abc.net.au

Markus Löw @markusloew.bsky.social · Jun 10

That would have been great for me a few years ago... #clot

Nature @nature.com · Jun 10

This tiny device can shrink dangerous blood clots. It’s called the ‘milli-spinner’ and its invention was partly an accident…

Markus Löw @markusloew.bsky.social · Jun 4

After the recent redesign /rebuild and upgrade of the Au-Whr Whroo flux tower to prevent further theft and vandalism, we now reinstalled a mixture of old and new soil sensors. #eddycovariance

View from the top over the canopy of the Whroo nature reserve

Reposted by Markus Löw

Ian Wright @ianjwright.bsky.social · May 29

Excited to share our new paper led by Tsinghua Uni ECR Zhang Han: www.science.org/doi/10.1126/.... New model based on eco-evolutionary optimality explains observed seasonal and spatial trends in stem respiration, implies stem CO2 efflux down by >25% by 2100, reducing land carbon emissions.

Thermal acclimation of stem respiration implies a weaker carbon-climate feedback

The efflux of carbon dioxide (CO2) from woody stems, a proxy for stem respiration, is a critical carbon flux from ecosystems to the atmosphere, which increases with temperature on short timescales. Ho...

www.science.org

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Markus Löw @markusloew.bsky.social · May 28

Great to see that the beloved red gondola is still going strong at KROFF! #memories #casiroz

Andrea Ghirardo @andreaghirardo.bsky.social · May 26

I am excited to start our field campaign to study the interaction between herbivory, leaf phytochemicals and microbiome under a simulated drought forest experiment at KROOF 🌿🦋🔬 @plantmicrobiosis.bsky.social #Grams #MichaelEisenring #MartinGossner #WLS #TUM

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Markus Löw @markusloew.bsky.social · May 23

Three #eddycovariance towers in three days. Moved one, added two. These little towers are part of a long term agricultural trial.

Setting up the next eddycovariance tower in the experiment

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Reposted by Markus Löw

Arthur Gessler @arthurobuntspecht.bsky.social · Apr 21

Forest productivity response to elevated CO2 in free‐air CO2 enrichment experiments: the 23 percent solution, revisited

A synthesis of free-air CO2 enrichment (FACE) experiments describing the response of forest net primary productivity (NPP) to elevated atmospheric CO2 published in 2005 has provided a valuable benchm...

nph.onlinelibrary.wiley.com

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Markus Löw @markusloew.bsky.social · Apr 19

Backyard eddycovariance tower 😉. I set up a system at home over the Easter holidays to tweak, test, and monitor the setup. Let's find out if my backyard is a carbon sink or source. Science at home 👍

Eddycovariance test system in my backyard for testing at home

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Markus Löw @markusloew.bsky.social · Apr 11

#Fieldwork on AU-Wom Wombat Forest #eddycovariance flux tower today when a planned burn in the distance got a bit out of hand

Planned burn turned into a bushfire not far from the tower. Smoke and clouds visible

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Markus Löw @markusloew.bsky.social · Apr 9

Preparation of the next three #fluxtowers has started 😀. #newgearday. Hope they'll be deployed before winter.

Early stages of building three new #eddycovariance systems in the lab

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Markus Löw @markusloew.bsky.social · Apr 6

#bikepacking weekend in Gariwerd / Grampians National Park

Grampians with Briggs Bluff from the east

Ledcourt State Forest with a fantastic road

View of the Grampians from Wartook lookout

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Markus Löw @markusloew.bsky.social · Apr 1

Another big week at the Au-Tum Tumbarumba flux tower: Installed a profile system to improve the #eddycovariance measurements.

The Tumbarumba eddycovariance flux tower

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Markus Löw @markusloew.bsky.social · Mar 28

On the way to #fluxtower work in the high country.

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Reposted by Markus Löw

FLUXNET @fluxnet.bsky.social · Feb 21

Good bye Twitter! 😥
HELLO BLUESKY!!! 😀

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Reposted by Markus Löw

Arthur Gessler @arthurobuntspecht.bsky.social · Feb 20

Vertical canopy gradients of respiration drive plant carbon budgets and leaf area index

Despite its importance for determining global carbon fluxes, leaf respiration remains poorly constrained in land surface models (LSMs). We tested the sensitivity of the Energy Exascale Earth System ...

nph.onlinelibrary.wiley.com

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Markus Löw @markusloew.bsky.social · Feb 16

#bikepacking overnighter in Kara Kara National Park #camping #cycling and lots of hike-a-bike on the loose rocky steep bits 👍

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Reposted by Markus Löw

Troy Magney @troymagney.bsky.social · Jan 23

New Tansley review paper from Zoe Pierrat & friends in @newphyt.bsky.social linking proximal remote sensing with ecosystem fluxes!

Synergies and best practices for hyperspectral reflectance, SIF, thermal, microwave and lidar 🌈🌲🗼🛰️🧪
nph.onlinelibrary.wiley.com/doi/10.1111/...

Overview of proximal remote sensing instruments at a flux tower site. Shown are three eddy-covariance towers with sonic anemometers collecting data to derive ecosystem fluxes. Shown for spectral reflectance and solar-induced fluorescence (SIF) is a hyperspectral sensor with a narrow field-of-view (FOV) and multi-directional scanning capabilities (Sections II.1 and II.2). We also show the direct emission of SIF from the forest canopy (Section II.2). For thermal infrared radiation, we show a fixed thermal camera and thermal radiation coming from the canopy (Section II.3). For microwave, we show two potential arrangements with antenna A receiving direct signals from under open-sky conditions as well as signals that are reflected from the underlying vegetated surface, and antenna B receiving a direct signal that is propagated downward through the vegetation canopy and attenuated by its moisture content (Section II.4). We also show a light detection and ranging (LiDAR) instrument emitting light to get a 3D representation of canopy structure (Section II.5). Above the forest are a drone, aircraft, and satellite to emphasize the potential of proximal remote sensing to complement observations across scales. In the inset plot, we show sample reflectance spectra for vegetation and wet soil and highlight key wavelength ranges for spectral reflectance. We also show typical SIF retrieval windows and LiDAR emission windows. Next to the reflectance spectra, we show sample radiance in the thermal infrared region, with example spectra for warm soil and cool vegetation. Finally, we show key measurement wavelength bands for microwave backscatter.

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Reposted by Markus Löw

Global Change Biology @globalchangebio.bsky.social · Feb 7

Leaf Photosynthetic and Respiratory Thermal Acclimation in Terrestrial Plants in Response to Warming: A Global Synthesis

📄 https://buff.ly/3CsVtm7
#photosynthesis #climatewarming

buff.ly

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Markus Löw @markusloew.bsky.social · Feb 7

Good news, everyone! #Flux tower AU-Tum Tumbarumba is back!
Incredible effort by the #UoM team this week to install #EddyCovariance sensors and power system to bring the new tower online. Thanks Ian, Rhys, Stefan and Lizzo!
#OzFlux #TERN #teamcounduit @stefanarndt.bsky.social

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Markus Löw @markusloew.bsky.social · Feb 3

Room with a view in the #highcountry

Reposted by Markus Löw

Arthur Gessler @arthurobuntspecht.bsky.social · Feb 1

🧪New research advances plant stomatal modelling by optimising for growth, survival & reproduction - not just carbon gain. The model accurately predicts plant responses to drought, heat & CO₂, promising better forecasts of global carbon/water cycles onlinelibrary.wiley.com/doi/full/10....

Generalized Stomatal Optimization of Evolutionary Fitness Proxies for Predicting Plant Gas Exchange Under Drought, Heatwaves, and Elevated CO2

We develop a new generalized optimality theory of stomatal conductance that optimizes any non-foliar fitness proxy that requires water and carbon reserves, like growth, survival, and reproduction. We...

onlinelibrary.wiley.com

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