Zhang Yunjun
@yunjun_z
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Geodesist / Geophysicist / Professor @ Chinese Academy of Sciences
Beijing, China
Joined January 2014
We used an interferogram from the Chinese L-band SAR satellite LuTan-1, launched in early 2022. The L-band data provides coherent near-field measures. The products are freely available at https://t.co/joosQlwXU0
The Mw 7.8 Kahramanmaraş earthquake nucleated on the Narli fault before propagating to the East Anatolian Fault and may form part of a greater than 900 year seismic supercycle @LingsenMeng @DocTerrmoto @UCLAEPSS
https://t.co/s08FVQzqpp
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The 28 March earthquake in Mandalay, Myanmar, caused fatalities across a broad swath of the country and beyond. This special issue of Science features papers exploring the risk and reasons behind the anomalously fast, sustained rupture. https://t.co/eeu8yKxP38
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🚀 New data alert! The Alaska Satellite Facility + Jet Propulsion Laboratory team has made the OPERA RTC-S1 terrain-corrected backscatter products available in NASA Worldview. See Earth in more detail than ever. 🌍 https://t.co/0wgET1gwPU
asf.alaska.edu
The Alaska Satellite Facility (ASF), in collaboration with the OPERA project at NASA’s Jet Propulsion Laboratory (JPL), is pleased to announce that OPERA Radiometric Terrain Corrected from Sentinel-1...
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Great to see our paper led by @yuan_kai_liu is out on GRL @theAGU! We demonstrate that InSAR velocity can be used to est. the Euler pole of tectonic plates, and it can be more accurate than using GNSS alone, providing future plate motion models with a new type of obs constraint.
Long-wavelength radar signals—once dismissed as noise—can reveal how entire tectonic plates rotate. In our paper on GRL, we use radar interferometry over the Arabia to infer plate motion—without relying on GNSS. @yunjun_z , Mark Simons Open Access link: https://t.co/cz46FKmubp
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Long-wavelength radar signals—once dismissed as noise—can reveal how entire tectonic plates rotate. In our paper on GRL, we use radar interferometry over the Arabia to infer plate motion—without relying on GNSS. @yunjun_z , Mark Simons Open Access link: https://t.co/cz46FKmubp
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We are compiling our observations from satellite observations on this web map, and updating the map when new data become available: https://t.co/Quq7RTQy3b
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ERI is hiring a Marine Geoscience faculty. https://t.co/Czru7iEeRt
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A chapter from my @Caltech PhD thesis has been published in @Nature. We (me, @StacyLarocheIIe, V. Rubino, N. Lapusta, A. Rosakis) show that interfaces under non-zero shear stress are always sliding, even if they appear to be stationary to the naked eye. https://t.co/4BHrz15dOQ
nature.com
Nature - Digital image correlation measurements show that nominally stationary interfaces subjected to constant shear and normal loads are sliding at extremely small rates, confirming the...
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In our new paper https://t.co/ZO230a11zE, we explore how Graph Neural Network and spherical harmonics can potentially help volcano geodesy move beyond simple spheroidal reservoir geometries.
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💡Highlights: Sandy beach intertidal topography estimation based on lCESat-2, is a methodology that can capturenarrow sandy beach intertidal topography and extendit globally. 🌟Keywords: Intertidal, topography, sandy beach, lowland, ICESat-2, Sentinel-2.
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Sharing our paper titled An analysis of the potentials of L-band SAR satellites for measuring azimuth motion. Download the paper for free until November 15, 2024 at https://t.co/3in4ksaZVb
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New article in NATURE COMMUNICATIONS ( https://t.co/6cc2rE18DN), which contributes to the field of earthquake forecasting! @SandyDrymoni @UAFGI @LMU_Muenchen @NatureComms #Ridgecrest #Alaska #earthquake_forecasting
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The 2024 magnitude 7.5 Noto earthquake in Japan occurred on a fault system that has seen repeated seismic swarms since 2020. New research in Science deciphers the intense ground motion of the event. Learn more in this week's issue: https://t.co/Z8r6LH4FtG
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Excited to see our work on the 2024 Noto EQ led by @liuwei_xu, Ji Chen, and @LingsenMeng featured on the cover of @ScienceMagazine! Combining seismic & geodetic data, we found complex ruptures in the initial stage of this New Year's EQ that led to violent shaking
Dual-initiation ruptures in the 2024 Noto earthquake encircling a fault asperity at a swarm edge | Science
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Sentinel-1 orbit files are now available in the Registry of Open Data on AWS! • Publicly available, no login required 🎉 • Less downtime, thanks to Amazon S3 🎊 • Accessible via a new s1_orbits Python library and standard S3 tools 🥳 https://t.co/grsMcUxUPp
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🚨Final Day @EarthScope_sci InSAR Class🚨 Today is #InSAR Time Series day 🥳. Right now, @HereshF is introducing ISCE3, the next-gen of #ISCE for use with NISAR 🛰️! Next @yunjun_z will lead exercises on SBAS processing with #MIntPy. Unroll for resources 🧵 #GoldenAgeOfSAR
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🗞️#InSAR Crowd🗞️ Today is first day of the annual @EarthScope_sci InSAR course based on ISCE & MintPy 🥳. We will go through stuff from InSAR processing to InSAR time series & geophysical modeling. Right now @gfun is kicking us off with InSAR in Geophysics. #GoldenAgeOfSAR
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🚨ASF’s Sentinel-1 Burst Archive is complete!!! 🚨 You can now download burst data for ANY #Sentinel-1 scene in our archive. Learn more below 👇#GoldenAgeOfSAR #S1Bursts
https://t.co/fG9PhThDW9
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Deeply honored to receiving this award for #SAR capacity building from @IEEE_GRSS. Thanks to the many of you I’ve had the pleasure of working with to make #SAR data more accessible. #GoldenAgeOfSAR @Ak_Satellite @UAFGI
🏆 This year's IEEE GRSS Education Award was presented to Prof. Franz J. Meyer "in recognition of significant education contribution to geoscience and remote sensing." 🌍🛰️ #IEEEGRSS #EducationAward #Geoscience #RemoteSensing
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Read my latest #research on understanding tidal regulation of cryovolcanic jets at #Enceladus, published with @SpringerNature in @NatureGeosci: https://t.co/qyKZzkKsok
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Fresh out！ The ALOS-2 #InSAR result of 2022 and 2024 #earthquakes in eastern #Taiwan from IES, Academia Sinica. The result suggests most of the deformations were offshore, with moderate coastal deformation. This is similar to what we observed along the coastline.
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