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lasseharkort.bsky.social
@lasseharkort.bsky.social
170 followers 450 following 3 posts
🌍 Geographer | 🛰️ Earth Observation

Studying vegetation change in semiarid rangelands.
Interested in how we observe landscapes & use environmental data.

🎓 PhD @humboldteolab.bsky.social
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Reposted
humboldteolab.bsky.social
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
July 21, 2025 at 11:09 AM
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philrufin.bsky.social
#LPS25 poster alert: National scale field delineation in #Mozambique using 1.5m SPOT data, mapping field size & linking to #deforestation. Come by @ Hall X5, Poster S18.
June 25, 2025 at 9:23 AM
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humboldteolab.bsky.social
Last EOLab contribution at #LPS25 for today:
Heather Cox et al.: Mapping tree invasions in an Afromontane ecosystem with multidecadal #Landsat and #Sentinel-2 data

17:45 at X5 – Poster Area, Zone L-N

More to come in the next days, have a look: eolab.geographie.hu-berlin.de/uploads/EOLa...
Announcement for upcoming Earth Observation Lab contribution at living planet symposium 2025: Cox et al.: Mapping tree invasions in an Afromontane ecosystem with multidecadal Landsat and Sentinel-2 data Part of Session: A.02.02 - Terrestrial and Freshwater Biodiversity Where: X5 Poster Area – Zone L-N When: Tuesday 24.06.25 / 17:45 h
June 24, 2025 at 3:06 PM
lasseharkort.bsky.social
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
LPS 2025
June 22, 2025 at 10:14 AM
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humboldteolab.bsky.social
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
June 16, 2025 at 3:41 PM
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larissalachmann.bsky.social
Most scientific figures aim to be clear.
But what if they also aimed to be compelling?

I love clean, well-structured data visuals — often, they’re exactly what’s needed.

But when data is about people — shouldn’t we also show them? #DataVisualization #SciComm @humboldteolab.bsky.social
April 30, 2025 at 1:05 PM
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humboldteolab.bsky.social
Girls’Day at the Earth Observation Lab!
This year we participated in the Girls’Day for the first time, an annual action day that gives schoolgirls from the 5th grade onwards the opportunity to explore various professional fields. Have a look here: storymaps.arcgis.com/stories/8529...
Girls'Day logo on blurred background picture of a pc-pool exercise with multiple students
April 28, 2025 at 9:50 AM
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smstuenzi.bsky.social
Our latest JGR Earth Surface paper reveals how Siberia's boreal forests critically delay thermokarst onset and stabilize #Permafrost in a warming climate 🌍🌲❄️. Read more: doi.org/10.1029/2024... #ClimateChange #EarthScience
Boreal Forest Cover Delays Thermokarst Onset in Central Siberia's Yedoma Deposits
Forests delay thermokarst and excess ice melt by 3–18 years, depending on excess ice depth, climate scenarios, and site conditions Canopies buffer fast initial thermokarst formation during climat...
doi.org
March 30, 2025 at 2:20 PM
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biogeoberlin.bsky.social
Considering land use complexity and overlap is critical for sustainability planning. New paper led by Marie Pratzer - out in OneEarth:

www.sciencedirect.com/science/arti...

@tkuemmerle.bsky.social @matthiasbaumann.bsky.social @pedrofernandez91.bsky.social @oneearthofficial.bsky.social
April 7, 2025 at 7:30 AM
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kelewinska.bsky.social
📣In our new paper we analyzed the impact of #Landsat and #Sentinel-2 🛰️ #satellite data density and SMA endmembers on trends in #grasslands ground cover:
- for monthly composites data density is irrelevant
- correct endmember definitions are critical‼️
Check out the full paper tinyurl.com/wha6pzax
April 4, 2025 at 1:05 PM
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humboldteolab.bsky.social
Our PhD student Shawn Schneidereit at the EnMAP User Workshop in Munich presenting his research on global NPV mapping 🛰️

The EnMAP User Workshop is goes until Friday 4th
enmap.geographie-muenchen.de

Join online via:
lmu-munich.zoom-x.de/meeting/regi...
April 2, 2025 at 5:40 PM
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humboldteolab.bsky.social
How can AI for #EarthObservation deliver for social good? Read our recent #openaccess IEEE Geoscience and Remote Sensing Magazine article, co-authored by @hostertp.bsky.social and @philrufin.bsky.social!
philrufin.bsky.social Philippe Rufin @philrufin.bsky.social · Mar 3
New #IEEE GRSM paper on responsible #AI for #EarthObservation! AI for EO data analysis holds great promise in addressing global challenges but simultaneously needs a careful examination of the dimensions of responsibility. We reviewed them in this #openaccess article: doi.org/10.1109/MGRS...
Diagram showing the main building blocks of responsible AI in EO. Mitigating unfair bias, securing AI, preserving (geo)privacy, and addressing ethical concerns outline the considerations necessary for implementing responsible AI methodologies within the fields of EO. Social good presents the opportunities and goals related to how a responsible AI system can effectively be utilized to make a positive difference in people’s lives.
March 3, 2025 at 8:06 PM
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humboldteolab.bsky.social
Two professor positions open at Humboldt University Berlin:

🔹 Human Geography: haushalt-und-personal.hu-berlin.de/de/personal/...

🔹 Physical Geography: haushalt-und-personal.hu-berlin.de/de/personal/...

6-week application deadline. Please share!
W1 Professorship in Human Geography and Global Transitions (with tenure track to W3)
haushalt-und-personal.hu-berlin.de
February 28, 2025 at 12:25 PM
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larissalachmann.bsky.social
🎨 Need help choosing colors for scientific visuals? This tool ensures your graphics are not only beautiful but also colorblind-friendly! 📊 Check it out: personal.sron.nl/~pault/#sec:...
#SciComm #DataViz #ColorBlindness @lasseharkort.bsky.social
The image is an informational graphic with the title: "Struggeling with color choices? Make your science accessible" The text is presented in a clean, modern font, with the phrase "Helpful Resource" highlighted in a light green box, emphasizing accessibility in scientific visuals. The background is a light beige color with abstract geometric shapes in muted red and light blue scattered around. In the lower right, there is a circular diagram composed of segmented parts, some of which are hatched, connected to smaller geometric shapes, including a yellow pentagon and another pentagon with a question mark inside, suggesting inquiry or guidance. The design is minimalist and visually appealing, aimed at guiding color choices for accessible scientific graphics.
February 26, 2025 at 9:08 AM
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pnas.org
Opinion piece: To advance #SustainableDevelopmentGoal research, open up commercial #satellite image archives for better #farm data. www.pnas.org/doi/10.1073/...

#SDGs #SmallholderFarm #ClimateChange #agriculture #LandUse #CropProductivity
To adequately study smallholder farms, researchers need access to high-resolution satellite data. This will provide critical tools, data, and scientific underpinning for the policies necessary to meet the targets defined under the SDGs. Pictured is a hand holding some beans. Image credit: Cristina Chiarella (photographer).
February 18, 2025 at 6:16 PM
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humboldteolab.bsky.social
🚀 EO Lab Bluesky Starter Pack 🌍

Want to connect with Earth observation & remote sensing experts? We’ve curated a list of EO Lab members & close network connections.

🔗 Check it out & start following: go.bsky.app/LsrpBNW

Let’s grow the EO community! #EOchat #RemoteSensing
February 17, 2025 at 8:14 AM
lasseharkort.bsky.social
Separating woody, herbaceous, and bare cover in semiarid Sub-Saharan rangelands isn’t easy—spectral similarity makes it tricky. 🌍🛰️

We developed a Phenological Feature Space (PFS) to solve this, using Sentinel-2 time series.

Excited to share our latest work!
doi.org/10.1016/j.rs...
Fractional cover map of Namibia’s landscape revealing human impacts and dryland dynamics. Woody vegetation is shown in green, herbaceous vegetation in blue and bare surfaces in red. The map highlights rangeland fragmentation due to different land management practices in communal smallholder farms (A) and largescale commercial farms (B), and the presence of herbaceous-dominated patches along ephemeral rivers (C).
February 14, 2025 at 6:34 AM
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humboldteolab.bsky.social
📣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.
February 13, 2025 at 9:28 AM
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philrufin.bsky.social
We left behind ~10k followers on X, please reskeet to help us reach the community! #EOchat
philrufin.bsky.social 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!
Logo of the Earth Observation Lab of Humboldt University Berlin on background false-color satellite image showing contrasting agricultural systems at the Turkish-Syrian border.
February 12, 2025 at 3:57 PM
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humboldtuni.bsky.social
🔭 #WomenInScience: Heute feiern wir den Internationalen Tag der Frauen und Mädchen in der Wissenschaft! Im Interview mit der #HU spricht Prof. Dr. Andrea Walther @mathplusberlin.bsky.social über ihre Begeisterung für die Mathematik.
👉 www.hu-berlin.de/de/pr/nachri...
HU-Prof Dr. Andrea Walther. Foto: Kay Herschelmann / MATH+
February 11, 2025 at 10:51 AM
lasseharkort.bsky.social
Excited to share this event:

🌍🌳 Global Forest Monitoring: Protection or Surveillance?

Join tonight at 19:00 at @iciberlin (or via livestream) for a deep dive into the ethics of space politics w/ Birgit Schneider & Lynda Olman.

Details & access: www.ici-berlin.org/events/globa...
Global Forest Monitoring - ICI Berlin
Though a powerful tool for both transnational forest product companies and Indigenous activists, global forest monitoring platforms present ethical and political dilemmas.
www.ici-berlin.org
February 10, 2025 at 3:34 PM
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ggohar.bsky.social
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
February 6, 2025 at 8:03 AM
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jalsleben.bsky.social
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
January 13, 2025 at 9:54 AM