New position at the Agrar-, Ernährungs- und Ingenieurwissenschaftlichen Fakultät (AEI) and Collaborative Research Centre 1502 on Regional Climate Change. Please read more here: sfb1502.de/news-events/... #ClimateScience
Ben Gutknecht
@geophysx.bsky.social
Geophysicist, geodesy, global water cycle, sealevel, tectonics, GRACE/-FO, gravimetry, spaceflight, science-to-music converter. Researcher at UBonn. Views are my own.
HydroGNSS data are now available to users worldwide. Following commissioning, @esa.int's first Scout mission is now in full scientific operations, providing new observations of soil moisture, wetlands, flooding and vegetation to support water and climate research. www.esa.int/Applications...
HydroGNSS data open for new insights into Earth’s water
The European Space Agency's two-satellite HydroGNSS Scout mission has completed commissioning and is now in full scientific operations.Following extensive testing and validation of the satellites, ins...
esa.int
Two versions of my favourite ship, RV #Polarstern: one that I worked on during an #Arctic expedition in 2022 and one that I have just finished building from bricks. Evidently, I'm not too old for this!
We are now officially at NORAD Catalog Number 100000. There is no GP data available for Saramago yet.
US FCC: “let’s do a consultation on how the community feels about this” Community: “we hate it, don’t do it, it’s real bad, this will impact a lot of people — astronomers, biodiversity, Indigenous communities, more” x 1800 responses FCC: “lol, we don’t care. APPROVED.”
The International Earth Rotation and Reference Systems Service (IERS) advises: "NO leap second will be introduced at the end of December 2026." For more information, see: hpiers.obspm.fr/iers/bul/bul....
ERA5 single levels and ERA5-Land datasets are now available in an Analysis-Ready Cloud-Optimised (ARCO) Zarr format in the Copernicus Climate Change Service (C3S) Climate Data Store (CDS), enabling faster and more efficient access to key climate data. ⬇️
We now have 263 5-digit catalog numbers left. Projected launch activity (see new.nextspaceflight.com/launches/?q=...) through Jul 13 (5 Starlink, 1 Amazon Leo, Transporter-17) will use at least 220 of those. There are 5 launches in the next 24 hours. We remain on track to hit 69999 by mid-July.
Springer Nature to divest its consumer media businesses: group.springernature.com/gp/group/med...
Springer Nature to divest its consumer media businesses | Springer Nature Group | Springer Nature
Strategic divestment of consumer media portfolio enables Springer Nature to focus on its core business Transaction supports the long-term development
group.springernature.com
On our ~40 km journey this morning, with @aquasong.bsky.social and 3more colleagues, along the Rhine River to the @crc1502-detect.bsky.social retreat 2026 🚲🚴🚲🚴🚲
What if two GRACE-FO data assimilation systems produce nearly identical terrestrial water storage estimates - but tell different stories about what is happening underground? 🌍💧 New paper in Water Resources Research: doi.org/10.1029/2025... #DETECT #GRACE-FO #DataAssimilation
If this holds true, I might factor in an almost authentic relocation...
Heard Island Government@heardislandgov.bsky.social · 2mo agoOur island never requires two factor authentication. Have a splendid day.
Congratulations to Frank Flechtner, receiver of the 2026 Vening Meinesz Medal at #EGU26 Also congrats to @gfz.bsky.social Eva Börgens for an indeed Outstanding @g.egu.eu ECS Lecture tonight! 🌍🚀🛰️🌐
Africa's first GNSS-IR network for water level monitoring is live in Cameroon! 8 low-cost stations, cm-level accuracy, validating Sentinel-3 & 6. Data: www.GNSS4SurfaceWater.com Code, workflows and fieldwork photos at github.com/MakanAKarega...
CRC 1502 DETECT@crc1502-detect.bsky.social · 3mo ago🌊🛰️ From Rhine to the tropics: low-cost GNSS-IR water-level sensors developed at @unibonn.bsky.social, under #CRC1502 #DETECT, are now used in ESA projects across Africa & the Asia-Pacific—supporting open monitoring for rivers and coasts in data-poor regions. 📰 www.uni-bonn.de/en/news/083-...
Congratulations to Frank Flechtner, receiver of the 2026 Vening Meinesz Medal at #EGU26 Also congrats to @gfz.bsky.social Eva Börgens for an indeed Outstanding @g.egu.eu ECS Lecture tonight! 🌍🚀🛰️🌐
We are officially at 68950, but that doesn't include 29 Starlink satellites launched May 1 and 45 rideshares launched May 3. We estimated we would hit 68999 on May 9. Time is running out. We will be making additional changes, like changing the default format to CSV. Watch here and spread the word!
Presentation about this dataset from within @crc1502-detect.bsky.social given by Charlotte in #EGU26 session G3.1 K1 about to start soon at 14:35! meetingorganizer.copernicus.org/EGU26/EGU26-...
Abstract EGU26-16439
meetingorganizer.copernicus.org
Ben Gutknecht@geophysx.bsky.social · 5mo agoPaper alert 🚨📢 GRACE-like reconstruction of terrestrial water storage, starting from the 1980ies(!). Thx to #openaccess PubFund of @unibonn.bsky.social find it for free at Copernicus ESSD via doi.org/10.5194/essd... This work by PhD cand. C.Hacker is part of @crc1502-detect.bsky.social 1/n
Just heard that netCDF viewer #ncview by David W. Pierce is no longer available from source b/c California Assembly bill about age verification. This might likely affect bsd/linux ports at version updates. Not great. 😶 cirrus.ucsd.edu/ncview/
Ncview | David W. Pierce, Scripps Institution of Oceanography
cirrus.ucsd.edu
📐🎉 150 years of Geodesy in Bonn! This year, the Institute of Geodesy and Geoinformation at the @unibonn.bsky.social celebrates its 150th anniversary. 🗓 Tue 21.04.26 | 17:00 CET 📍 Nußallee 17, Bonn Registration: www.igg.uni-bonn.de/de/anmeldung More: www.uni-bonn.de/de/veranstal...
Very convenient data, esp. if you otherwise have none. We tested the data extensively vs terrestrial water budgets and even against data from the @esaearth.esa.int CCI sea level budget. I might give it a try also as GRACE 'gap filler'
CRC 1502 DETECT@crc1502-detect.bsky.social · 4mo ago💧🛰️NEW #CRC1502 publication! Hacker et al. (co-authored by our speaker, @jurgenkusche.bsky.social) present a terrestrial water storage dataset from 1984 onward, combining pre-GRACE satellite observations and climate data. Great news for long-term water storage research. 📄 doi.org/10.5194/essd...
🦋PhD work "Multiannual Reconstruction of the Butterfly Effect" 😉 We observe a clear trend in opacity, which might be an early indicator for the human impact on kitchen climate. Formed over 3yrs during lunch times +colleague with hunger for Marzipan (wasn't me I swear!).
Delivering on its mission! Three months into its life in space, @esa.int ’s HydroGNSS is already hard at work. The mission tracks Earth’s water cycle by analysing navigation signals reflected off the planet’s surface. Curious to see some examples? 🔗 www.esa.int/Applications...
QGIS users: ATTENTION! We now have a convenient #QGIS plugin to integrate the latest version of the Scientific colour maps directly into the style manager: plugins.qgis.org/plugins/scie... Shout-out and big thanks to Silvain Théry. ⭐️ Happy mapping, everyone! #UseBatlow 🐡
Scientific Color Maps V8 - Integrates "Scientific color maps V8" into the style manager
plugins.qgis.org
Paper alert 🚨📢 GRACE-like reconstruction of terrestrial water storage, starting from the 1980ies(!). Thx to #openaccess PubFund of @unibonn.bsky.social find it for free at Copernicus ESSD via doi.org/10.5194/essd... This work by PhD cand. C.Hacker is part of @crc1502-detect.bsky.social 1/n
Multidecadal reconstruction of terrestrial water storage changes by combining pre-GRACE satellite observations and climate data
Abstract. The Gravity Recovery And Climate Experiment (GRACE) and its follow-on mission, GRACE-FO, have observed global mass changes and transports, expressed as terrestrial water storage anomalies (T...
essd.copernicus.org
The Two Line Element (TLE) format, which has been used to describe orbits of unique satellite objects for decades, is running out of available numbers within its standard. It appears many users are still not aware or have not switched to alternatives. (me too tbh since I'm not running op. services)
T.S. Kelso@tskelso.bsky.social · 5mo ago1/ Banners went up all over CelesTrak today because users continue to request GP & SupGP data in TLE formats. Of 1,200,556 requests on Feb 28, 95,675 are being redirected from deleted legacy files. Tens of thousands more are getting HTTP 404 errors.
