Lightnews — Scholar-powered news

Jingfeng Xiao @jingfengxiao.bsky.social · Aug 21

Impressive! for how long? two months?

Jingfeng Xiao @jingfengxiao.bsky.social · Aug 19

Our new RSE paper led by postdoc Jingyi Bu is out. Use of GEDI-derived canopy structural complexity metrics improves upscaling of flux tower data. GPP & ET increase with higher structural diversity. Ecosystems w/ complex structures are more resilient to drought
authors.elsevier.com/a/1lVkB7qzT7...

authors.elsevier.com

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Jingfeng Xiao @jingfengxiao.bsky.social · Aug 11

Just searched the entire terminal 5 at LAX and finally found a power outlet on a wall. Come on, it's 2025!

Jingfeng Xiao @jingfengxiao.bsky.social · Aug 3

A new study in Nature Climate Change shows contrasting biological production trends over land and ocean. Led by Yulong Zhang at Duke. I am glad to be part of the team. The last study that looked at production over both land and ocean was published in 1998.
www.nature.com/articles/s41...

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Jingfeng Xiao @jingfengxiao.bsky.social · Aug 2

Brisbane's Big Ben
and
Brisbane Eye (compared to London Eye)

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 29

You are welcome to submit an abstract to our AGU session. Conveners: @atkinsjeff.bsky.social‬, Qinfeng Guo, Erin Crockett, & myself.
Our invited speakers are:
Catherine Fahey (SERC)
Ruben Valbuena (SUL)
agu.confex.com/agu/agu25/pr...

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 15

What a nice case study! There happens to be an eddy covariance tower there, and it collected data both and before these events.

Andreas Christen @envmet.bsky.social · Jul 14

Years of drought turn forest into source of CO₂ - Press release on our research with @simonhaber.bsky.social and @chriswernerlab.bsky.social at @icos-ri.eu site DE-Har, showing tree mortality following droughts has fundamentally shifted forest structure & functioning uni-freiburg.de/en/years-of-...

Aerial view of the experimental forest near Hartheim with the 30-metre-high crown access tower in September 2023. Dead Scots pines and gaps in the canopy are visible throughout the forest. Photo: Fabio Scarpa

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 14

So it turns out to be not that bad?

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 14

How much was it for FY25?

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 11

I knew this would happen. Australia is definitely not the only one. Scientists are vital assets to have for any country.

Australian Academy of Science @science.org.au · Jul 11

Are you a top US-based scientist wanting to relocate to Australia? We are now calling for formal applications from both Australian and non-Australian citizens based in the US whose work is internationally recognised as exceptional.
📅 Applications close: Aug 29, 2025
🔗 science.org.au/gtap/?utm_so...

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 10

This is as good as what I got with my professional camera.

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 10

ROSES 2025 is finally out. All programs related to carbon cycle, climate change, terrestrial ecology, IDS, ..., have been cut. I knew it wouldn't look good, but I never thought all these programs would be entirely removed.
nspires.nasaprs.com/external/vie...

ROSES-2025 Table 3

nspires.nasaprs.com

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 10

Our new paper in GRL reveals widespread and divergent post-drought loss of gross primary production (GPP). 1/4 of the drought-induced GPP loss occurred after the drought, with a global mean of ∼0.74 Pg C yr−1. Led by Zhuoyi Zhao and Yanlian Zhou.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Widespread and Divergent Post‐Drought Loss of Gross Primary Production

∼23.89% (0.74 Pg C yr−1) of drought-induced gross primary production (GPP) loss occurred during the post-drought periods Higher proportions of post-drought GPP loss were observed in humid regions...

agupubs.onlinelibrary.wiley.com

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 8

This is a step backward. But stepping backward seems to be becoming the norm these days.

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 8

This is partly why I upload/submit my presentation file as late as possible.

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 8

Seriously?

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Reposted by Jingfeng Xiao

Union of Concerned Scientists @ucs.org · Jul 2

How much energy does it take to generate one ChatGPT request? What about water use and the broader climate impact of generative AI? UCS’s José Pablo Ortiz breaks it down, and explains why we need smart policy to guide this tech. Read the blog:

What Are the Environmental Impacts of Artificial Intelligence?

A single AI-focused data center can use as much electricity as a small city and as much water as a large neighborhood.

blog.ucs.org

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Jingfeng Xiao @jingfengxiao.bsky.social · Jul 3

In urban areas, the urban heat island phenomenon will make heatwaves worse.

IPCC @ipcc.bsky.social · Jul 3

#IPCC's 2022 #ClimateReport shows heatwaves in Europe will become more frequent, more intense & will last longer.

By 2050, about half of the European population may be exposed to high or very high risk of heat stress during summer.

➡️ bit.ly/IICpt13

Jingfeng Xiao @jingfengxiao.bsky.social · Jul 3

Simply amazing!

Jingfeng Xiao @jingfengxiao.bsky.social · Jul 3

Our new paper led by Bin & Hankui in ISPRS: Estimating carbon fluxes over North America using a physics-constrained deep learning model. The novelty is to use a time-series deep learning model to jointly estimate NEE, GPP, and RECO while accounting for a physical constraint (i.e., NEE = RECO-GPP).

Estimating carbon fluxes over North America using a physics-constrained deep learning model

Quantifying terrestrial ecosystem carbon fluxes, including net ecosystem exchange (NEE) of CO2, gross primary production (GPP), and ecosystem respirat…

www.sciencedirect.com

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Reposted by Jingfeng Xiao

biometlab @biometlab.bsky.social · Jun 26

Just posted an OpEd in our local paper, the Brentwood Press, on defending science, as encouraged by
@wclivestream.bsky.social and others

@natureatcal.bsky.social

www.thepress.net/opinion/we-s...

We should not dismantle science across America

The Trump administration is destroying our scientific institutions, its infrastructure, and intellectual capital at an unprecedented pace. Scientists are being fired without cause from many federal ag...

www.thepress.net

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Reposted by Jingfeng Xiao

SHABLINGO @shablingo.bsky.social · Jun 27

“Thunder is good, thunder is impressive; but it is lightning that does the work."
- Mark Twain

#lighteningstorm #lightening #BWFri #Scape #EastCoastKin #WhiteFri #BlackFri #ColorADay

Dark, cloudy sky with a sharp bolt of lightning erupting from its base. Black and white photo by T Jacobs.

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Reposted by Jingfeng Xiao

Dan Garisto @dangaristo.bsky.social · Jun 24

NEW: NSF will be kicked out of their building. Announcement will be made tomorrow by HUD Sec. and Governor of VA. HUD will take over the NSF building over the next two years.

NSF staffer: "There is no planning for NSF, no identified future location, appropriation for a new building or a move."

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Jingfeng Xiao @jingfengxiao.bsky.social · Jun 25

Congrats, Troy!

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Reposted by Jingfeng Xiao

Climate Psychology Alliance of North America @climatena.bsky.social · Jun 23

“Heatwaves are no longer just a physical threat—they may also be affecting our mental well-being. A new study has revealed a direct link between extreme heat exposure and increased risks of depression and anxiety.”https://urbanacres.in/heatwave-exposure-raises-depression-risk-by-13/

Heatwave exposure raises depression risk by 13%

Heatwave exposure raises depression risk by 13%, A new study shows a 13% rise in depression and 12% in anxiety risk among adolescents expo....

urbanacres.in

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