@mohseniaref.bsky.social
Ph.D. Candidate at Potsdam University (tweets r my own) | #InSAR 🛰️ #Geodesy 📡 #water_resources 🌊 | @mohseniaref@scicomm.xyz
Screen grab of a wrapped interferogram over southern Kamchatka
First Sentinel-1 interferogram from southern Kamchatka! Lots of what I am assuming are tropospheric signals (e.g. over the volcanoes), but I also see long-wavelength fringes that change in azimuth from the NE (~shore-perpendicular) to the SW (~shore-parallel). Optimistic it could be the earthquake!
01.08.2025 09:19 — 👍 25 🔁 6 💬 2 📌 0
In case you are free in the next few minutes:
www.youtube.com/watch?v=sLjv...
First tutorial of day in ESA living planet 2025 #LPS25 on #hylite for hyperspectral mapping
22.06.2025 13:00 — 👍 5 🔁 0 💬 0 📌 0Just arrived in Vienna for the ESA Living Planet Symposium after a difficult week shadowed by war. Grateful for the chance to unwind a bit and looking forward to reconnecting with friends and colleagues. 🌍✨ #ESALivingPlanet #Vienna #RemoteSensing
21.06.2025 10:58 — 👍 2 🔁 0 💬 1 📌 0
Congratulations to @kdevlin525.bsky.social on her newly-published (open access) article on the use of InSAR in active agricultural areas like California's Central Valley: agupubs.onlinelibrary.wiley.com/doi/10.1029/...
16.06.2025 13:07 — 👍 3 🔁 2 💬 0 📌 0Seeing Blatten buried again and again, from every angle...
Properly staggering! 😮😱
Images from @Planet before and after Shahid Rajaee Port blast scar near #BandarAbbas.
30.04.2025 01:13 — 👍 2 🔁 0 💬 0 📌 0
Shahid Rajaee Port
Sentinel-2 SWIR composite (28 Apr ): the Shahid Rajaee Port blast scar near #BandarAbbas. Data:
@CopernicusEU
#RemoteSensing #EO #Iran
📢⚠️ New Preprint Alert! ⚠️📢
A comprehensive analysis of GNSS‑derived velocities, strain rates, stress orientations, and seismic anisotropy along the Alpine‑Himalayan (Tethyan) Belt—from Iberia to Southeast Asia:
🔗 doi.org/10.22541/ess...
#GNSS #Tectonics #StrainRates #Geodesy
COMET invites you to the next instalment of our COMET webinar series.
Community-driven natural hazard and physical vulnerability assessment – developing a collaborative understanding
23rd April 2025 at 4pm UK time
Dr Annie Winson
BGS, UK
Please register at:
ukri.zoom.us/webinar/regi...
Azimuth offsets of the Myanmar earthquake from Sentinel-1A and Sentinel-1C data. Positive displacements are in the line-of-sight (LOS) direction.
Range offsets of the Myanmar earthquake from Sentinel-1A and Sentinel-1C data. Positive displacements are in the line-of-sight (LOS) direction.
Sentinel-1C(!) acquired new SAR data over Myanmar yesterday. Here are the azimuth and range offsets. Not particularly unexpected (right-lateral slip, 400 km+ long rupture), given earlier InSAR/image offset results, but surprisingly clean, given S1C is not out of its commissioning phase.
04.04.2025 07:49 — 👍 26 🔁 7 💬 1 📌 1
Herkes nasıl da güzel döküldü buraya. Ben daha cool değilken gelmiştim hehe. Üşengeçlikten anlatacak pek bir şeyim yok şu ara ama @evrimagaci.org 'na her ay düzenli olarak ayın depremi yazısı yazıyorum. Oraya bir bakın.
evrimagaci.org/dertuncay/
PhD position (f_m_x) - Ionospheric Irregularities - Potsdam, Germany - www.earthworks-jobs.com/jobs/gfz25024 - #jobs #research #PhD #ionosphere #atmosphericscience #geodesy #meteorology #physics #geophysics
28.03.2025 14:27 — 👍 0 🔁 1 💬 0 📌 0
Map showing the segmentation of the Sagaing fault and the hypothetic historical ruptures
Today's #earthquake near Mandalay, Myanmar, had magnitude Mw 7.7 to 7.9.
Prelim. source models point to rupture duration & length of ~120s and at least 200km. It likely filled large part of seismic gap S of Sagaing (previous rupture in 1839) ⚒️ 🧪
Map from doi.org/10.1002/2013... (Wang et al.)
1/n
Map from the ASF Vertex SAR data search tool showing most recent acquisitions from March 22, 24 and 27. Given the 12 day repeat for the Sentinel-1 satellites, this would suggest the next pass over the likely area of the Mandalay earthquake would be on April 3.
Looking at Sentinel-1 data availability over the Sagaing fault, and it is going to be several days (April 3rd) before Sentinel-1A flies over the likely rupture zone again. Can anyone at @esaearth.esa.int advise on the possibility of Sentinel-1C acquisitions over the area? #MyanmarEarthquake
28.03.2025 12:30 — 👍 6 🔁 3 💬 1 📌 0EERI, through their Learning from Earthquakes Program, made a web page which collects news outlets and scientific resources about the Myanmar earthquake eeri.org/about-eeri/n...
29.03.2025 07:59 — 👍 22 🔁 11 💬 0 📌 0
On April 1, 2022, a #satellite was launched as part of the German Environmental Mapping and Analysis Program (EnMAP) to collect #hyperspectral data, which can be obtained free of charge. Here is a #MATLAB script to import and display the data:
mres.uni-potsdam.de/2025/03/04/i... #Geoscience
Live streaming smartphone sensor data to #MATLAB desktop was great fun but a lot has changed since my first post on the topic in 2017, both with MATLAB Mobile and Desktop. Here is the update, it is still great fun!
mres.uni-potsdam.de/2025/03/14/m... #Geosciences
In this study we show that a single satellite snow depth image significantly improves a snowpack model in a high alpine site (Zugspitze, Germany). This result is based on the evaluation of the simulated gravity signal against superconducting gravimeter measurements. doi.org/10.1029/2024...
09.03.2025 20:39 — 👍 6 🔁 3 💬 1 📌 0
🚨The UKDayOne think-tank has published a major new paper by @peterkwells.com and @annapowellsmith.bsky.social on how opening up UK geospatial data – including the Postcode Address File – could unlock billions in economic value, modernise public services and foster competition. 🚨
05.03.2025 11:29 — 👍 19 🔁 6 💬 4 📌 1
I added them to the geodesy node library, but the maintainer didn't want them…
I need to remerge with head there github.com/kevinmarks/g...
I also added the X letter for the Channel Islands and M and R for Ireland to the UK Grid reference parsing code, which is a different kind of heresy…
Hear Dr @taimoorsohail.bsky.social discuss this important work on Australia's ABC Radio National. So good for people across our nation to hear about this finding and the risks associated - nice job Taimoor! 🌊
www.abc.net.au/listen/progr...
Déforestation in near real time over Amazonia / Gabon and South-East Asia with Sentinel-1 SAR images.
Unfortunatelly amazing and frightnening:
www.tropisco.org
OTB orfeo toolbox is available at
www.orfeo-toolbox.org
"Introduction to Physical Oceanography" by R. Stewart is now on GitHub. Free for everyone as it always was.
github.com/introocean/i...
#BlackHistory
#BlackWomenInSTEM 🖤✨
Gladys Mae West, born October 27, 1930, is an American mathematician known for her contributions to mathematical modeling of the shape of the Earth. Her work developing satellite geodesy models was later incorporated into the Global Positioning System (GPS).
🚀 Cleaning up issues and pull requests for the leafmap repository feels great! If you're looking to visualize geospatial data interactively, give leafmap a try! 🌍✨ It allows you to visualize all kinds of geospatial data with minimal coding.
🔗 GitHub: github.com/opengeos/lea...
New paper! Rachel Adam did a great job leading this work. Thanks to PGE and ASU for support.
Think about how we map potentially active faults.
pubs.geoscienceworld.org/gsa/geospher...
