Lightnews — Scholar-powered news

Jonas Alsleben @jalsleben.bsky.social · Jul 23

Congratulations, Lisa! :)

Reposted by Jonas Alsleben

Earth Observation Lab @humboldteolab.bsky.social · Jul 21

Using Remote Sensing and Agro-Ecosystem Modelling 🛰️🌽📈, Esther Shupel Ibrahim analyzes impacts of climate change and diseases on smallholder agriculture in Nigeria and develops strategies to support and empower smallholder farmers.
Find out more about her PhD research in this StoryMap:
arcg.is/1bG48K

Header Image of Maize field with a picture of Esther Shupel Ibrahim and text: Research for Smallholder Farmers' Food Security in Nigeria

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Reposted by Jonas Alsleben

Philippe Rufin @philrufin.bsky.social · Jul 17

🌍 🛰️ 🌱 🌽👨🏿‍🌾🛖💻⚙️
Preprint on national-scale satellite-based crop field delineation in smallholder landscapes is out:
doi.org/10.48550/arX...
🌍 🛰️ 🌱 🌽👨🏿‍🌾🛖💻⚙️

National-scale map of mean field size across Mozambique. Selected zoom ins provide details on individual fields.

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Reposted by Jonas Alsleben

Earth Observation Lab @humboldteolab.bsky.social · Jun 27

How well can we map NPV across temperate forest heterogeneity? Can we use NPV time series to reveal tree dieback? And how does dieback vary between species in Germany?
Visit @jalsleben.bsky.social to discuss these questions:

📍 X5 Poster Area
🗓️ Friday, 13:00h

#LPS25 #Sentinel2 #foresthealth

Announcement for upcoming Earth Observation Lab contribution at living planet symposium 2025:
Alsleben et al.: Monitoring Species-Specific Tree Dieback across Central European Temperate Forests using Sentinel-2 Time Series
Session: A.02.04 Advances in Monitoring and Management of
Forest Ecosystems
Where: X5 - Poster Area / Zone F-J
When: Friday 27.06.25 / 13:00 h

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Reposted by Jonas Alsleben

Earth Observation Lab @humboldteolab.bsky.social · Jun 27

#LPS25 wildE presentation on High resolution reconstructions of Pan-European woody cover timeseries from 1990-2024 by Shawn Schneidereit upcoming in Hall F2 at 11:30h!

Announcement for upcoming Earth Observation Lab contribution at living planet symposium 2025:
Schneidereit et al.: High resolution reconstructions of Pan-European woody cover timeseries from 1990-2024
Session: A.02.04 Advances in Monitoring and Management of
Forest Ecosystems - PART 6
Where: Hall F2
When: Friday 27.06.25 / 11:30 h

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Reposted by Jonas Alsleben

lasseharkort.bsky.social @lasseharkort.bsky.social · Jun 22

Excited to present at #LPS25! 🛰️

I’ll share how Phenological Feature Spaces help map vegetation fractions in semiarid rangelands.

🔗 Paper: www.sciencedirect.com/science/arti...

Make sure to check @humboldteolab.bsky.social at #LPS25 eolab.geographie.hu-berlin.de

#EOchat #LPS25

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Reposted by Jonas Alsleben

Katarzyna Ewa Lewińska @kelewinska.bsky.social · Jun 20

📣Attending @esa.int's #LPS25 next week?
Make sure to catch the 𝐂.𝟎𝟓.𝟎𝟒 session (𝐓𝐮𝐞 𝟐𝟒𝐭𝐡 | 𝟏𝟔:𝟏𝟓-𝟏𝟕:𝟒𝟓 | 𝐇𝐚𝐥𝐥 𝐋𝟏/𝐋𝟐), during which I will talk about 🌍 global 🛰️ #Landsat and #Sentinel-2 data availability and how it shapes feasibility of long-term analyses.
See you in Vienna!

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Reposted by Jonas Alsleben

Earth Observation Lab @humboldteolab.bsky.social · Jun 16

Grateful to Prof. Mia Bennett (@cryopolitics.com ,Univ. of Washington) for stirring questions at today’s EO Lab colloquium. “Pixel Politics” probed who owns the satellites—and the narratives—behind our data. Exposure→engagement→empowerment: roadmap for critical #RemoteSensing

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Reposted by Jonas Alsleben

Earth Observation Lab @humboldteolab.bsky.social · Jun 12

Meet the EnMAP-Box at the @esa.int #LivingPlanetSymposium. Come to our tutorial on Sun 22Jun, and poster on Wed 25Jun, right after the #EnMAP Mission session (C.05.05).

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Reposted by Jonas Alsleben

HagollEO @hagolleo.bsky.social · Mar 12

Starting tomorrow (13th of March)

Mike Wulder @mikewulder.bsky.social · Mar 12

Observations from 3 #Sentinel2 satellites! Increased revisit frequency. Terrific news!
“This configuration will enhance the availability of Sentinel-2 data, with additional Sentinel-2 observations on the same relative orbit, occurring 2 days apart from Sentinel-2B and 1 day apart from Sentinel-2C.”

Andrew Parsonson @andrewparsonson.bsky.social · Mar 1

ESA has granted Sentinel-2A a one-year exceptional and temporary extension, delaying its retirement and increasing Sentinel-2 revisit times.
europeanspaceflight.com/sentinel-2a-...

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Reposted by Jonas Alsleben

Mike Wulder @mikewulder.bsky.social · Mar 12

Observations from 3 #Sentinel2 satellites! Increased revisit frequency. Terrific news!
“This configuration will enhance the availability of Sentinel-2 data, with additional Sentinel-2 observations on the same relative orbit, occurring 2 days apart from Sentinel-2B and 1 day apart from Sentinel-2C.”

Andrew Parsonson @andrewparsonson.bsky.social · Mar 1

ESA has granted Sentinel-2A a one-year exceptional and temporary extension, delaying its retirement and increasing Sentinel-2 revisit times.
europeanspaceflight.com/sentinel-2a-...

Sentinel-2A Given One-Year Exceptional and Temporary Extension

ESA has granted Sentinel-2A a one-year exceptional and temporary extension, delaying its retirement and increasing Sentinel-2 revisit times.

europeanspaceflight.com

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Reposted by Jonas Alsleben

Philippe Rufin @philrufin.bsky.social · Feb 19

Proud to be part of a great @eoafrica-rd.org team and an exciting project! Looking forward to the collaboration Prof. Natasha Ribeiro, @hostertp.bsky.social, @lennarteichfuss.bsky.social, João Chibue Domingos & Pauline Hammer! More info here: eolab.geographie.hu-berlin.de/research_pro...

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Jonas Alsleben @jalsleben.bsky.social · Feb 13

Congratulations to @lasseharkort.bsky.social for his first Phd chapter! The maps reveal impressive patterns of management-driven fragmentation and woody-herbaceous cover along a rainfall gradient.

Earth Observation Lab @humboldteolab.bsky.social · Feb 13

📣 New in Remote Sensing of Environment!

PhD candidate @lasseharkort.bsky.social and team introduce a novel Phenological Feature Space (PFS) approach for mapping fractional vegetation cover in Sub-Saharan rangelands using Sentinel-2 time series. 🛰️

🔗 doi.org/10.1016/j.rs...

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Reposted by Jonas Alsleben

Earth Observation Lab @humboldteolab.bsky.social · Feb 13

📣PNAS piece led by @philrufin.bsky.social: commercial very-high-resolution EO data is needed for monitoring SDG 2 indicators in smallholder landscapes but costs are prohibitive. A call for open access for sustainability-centered research: doi.org/10.1073/pnas... @humboldtuni.bsky.social

$A drone capture of a smallholder farming landscape. Overlaid are squares of the size of typical optical satellite missions. Openly accessible data (e.g. Landsat or Sentinel-2) is often not sufficient to capture the landscape complexity in full detail, for example when trying to delineate individual fields. Here, one Landsat pixel contains fractions of multiple fields. Commercial data come at higher spatial resolution, offering potential to discriminate indivudual landscape components.$

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Reposted by Jonas Alsleben

Philippe Rufin @philrufin.bsky.social · Feb 12

Commercial very-high-resolution satellite imagery is crucial for monitoring smallholder farming systems (SDG 2), but paywalls block innovation and progress.

We call for open access to these data for sustainability-centered research in @pnas.org!

Read the full text here: doi.org/10.1073/pnas...

Photograph of smallholder farmer presenting seeds in her hand.

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Reposted by Jonas Alsleben

Philippe Rufin @philrufin.bsky.social · Feb 12

We left behind ~10k followers on X, please reskeet to help us reach the community! #EOchat

Philippe Rufin @philrufin.bsky.social · Feb 12

Return of the good times: the Earth Observation Lab of @humboldtuni.bsky.social has joined Bluesky: Follow @humboldteolab.bsky.social for all things terrestrial remote sensing and geospatial at large!

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Reposted by Jonas Alsleben

He YIN | 殷贺 @he-yin.bsky.social · Feb 11

Congratulations to Esmaeel Adrah on the publication of his first paper in #RSE! 👏
🏷️ In this paper, we integrated #GEDI, #Sentinel-1, and #Sentinel-2 data to map tree crops in a Mediterranean environment.
www.sciencedirect.com/science/arti...

Integrating GEDI, Sentinel-2, and Sentinel-1 imagery for tree crops mapping

Mapping tree crops is essential for resource management and supporting local livelihoods and ecosystem services. However, tree crops are often overloo…

www.sciencedirect.com

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Reposted by Jonas Alsleben

Gohar Ghazaryan @ggohar.bsky.social · Feb 6

Productive days at @esaearth.esa.int Digital Twin Earth Open Science Meeting!
We presented #EOAgriTwin, a project that uses #EO data to assess stressors & build #DigitalTwin for drought, heat, pests & pathogens.
Collab: @zalf.bsky.social, RSS, @humboldtuni.bsky.social, ICIPE & UCSC.
🔗 eoagritwin.eu

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Reposted by Jonas Alsleben

Robert Pazur @robertpazur.bsky.social · Jan 21

Productive discussions on G4B grassland habitat and diversity remote sensing and protection with our partners at Humboldt University today. #G4B @g4biodiv.bsky.social @wslresearch.bsky.social @biodiversaplus.bsky.social @tkuemmerle.bsky.social

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Jonas Alsleben @jalsleben.bsky.social · Jan 13

Thank you!

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Jonas Alsleben @jalsleben.bsky.social · Jan 13

Happy to share our new paper on soil-specific unmixing of croplands in Germany led by Felix Lobert.

We adapted @katjakowalski.bsky.social’s approach using #Landsat and #Sentinel-2 🛰️ to account for soil variability using a soil reflectance composite developed at @thuenen.de EO:

tinyurl.com/5n92ae5z

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