Mahmud Haghshenas

New in @ScienceAdvances. Our paper provides a comprehensive analysis of land subsidence across Iran due to aquifer depletion, using Sentinel-1 InSAR. #ScienceAdvancesResearch science.org/doi/10.1126/sc…

A detailed satellite survey of land subsidence in Iran from 2014 to 2020 shows that 3.5% of the country’s land area is subsiding due to groundwater pumping for irrigation. scim.ag/6W6

بررسی #فرونشست زمین در سرتاسر ایران. دلیل اصلی فرونشست استخراج بی‌رویه آب‌های زیرزمینی است که متاسفانه به جز گیلان در همه استان‌های کشور دیده میشه.

Groundwater loss in Iran is taking on dramatic proportions. In some regions, the ground is sinking almost 40 centimeters per year & huge fissures are opening up. Click here for the news about the latest study of GFZ researcher @MahdiMotagh & his colleague gfz-potsdam.de/en/press/news/…

Grundwasserverlust in Iran nimmt dramatische Ausmaße an. In manchen Regionen senkt sich der Boden deshalb fast 40 Zentimeter pro Jahr und riesige Erdspalten tun sich auf. Hier geht's zu der Nachricht über eine unserer neuesten Studien: gfz-potsdam.de/presse/meldung…

Our findings reveal that except for Gilan, every province in Iran is experiencing land subsidence at various rates due to groundwater depletion. The nationwide subsidence data is available Access the data at zenodo.org/records/108155…

Covering 2014-2020, we found 56,000 km² of Iran's land affected by subsidence, primarily due to excessive groundwater extraction for irrigation. This includes alarming subsidence rates of up to 37 cm/year, posing serious risks to infrastructure and water sustainability.

New in @ScienceAdvances. Our paper provides a comprehensive analysis of land subsidence across Iran due to aquifer depletion, using Sentinel-1 InSAR. #ScienceAdvancesResearch science.org/doi/10.1126/sc…

We are all set to organize our FIRST InSAR workshop at the Department of Civil Engineering, IIT Roorkee India. Stay tuned for more updates. SALIENT FEATURES: 1. SERB sponsored 2. 25 participants (100+ applications from 50+ Indian universities) 3. 11 SAR experts

New update on Sentinel-1B - further attempts to activate power were not successful. Investigations on going☹️ scihub.copernicus.eu/news/News00985

Things are starting to look serious for Sentinel-1B, which has been down since Christmas. Hopefully ESA can resolve the issues: scihub.copernicus.eu/news/News00980

On #BlackFriday our master students at @UniHannover are learning, #online and #offline on the campus, how to use #sentinel1 #SAR data in #GoogleEarthEngine for #landcover #classification and #flood mapping. Thank you @Mahmudhh for your support in the lecture

Wow! just got this video! last two #eathquakes M6.0 and M6,3 today, #Iran #Zagros #BandarAbbas #ایران

Geodetic Colloquium at IGG, Uni Bonn, summer term igg.uni-bonn.de/de/veranstaltu… This Thursday 16:15 CEST=UTC+2h I will be talking about "How (Hydro-) Geodesy Monitors the Global Water Cycle – Results from @GlobalCDA, the DFG-Research Unit 2630" (in English)

6-day S1 LiCSAR interferogram for the M7.4 Southern Qinghai earthquake - beautifully highlights shallow afterslip occurring along the fault rupture. Links to data download from comet.nerc.ac.uk/earthquakes/us… @COMET_database @NERC_COMET @ESA_EO

@EricFielding @Abbeymogano @esa_gep Thanks for sharing Eric. @Abbeymogano, here is the same interferogram with the download link: twitter.com/COMET_database…

@Abbeymogano @Mahmudhh @esa_gep Local authorities have ordered the evacuation of parts of Goma. The interferogram is consistent with a new magma intrusion extending beneath the city of Goma. twitter.com/Melaniegouby/s…

Comparing preseismic and coseismic coherence maps from Sentinel-1 clearly illustrates 170-km-long surface rupture due to Mw 7.3 Southern Qinghai, China earthquake, processed by @esa_gep

@maferp_13 @CopernicusEU @FraxInSAR @claudiodeluca @EPOSeu @dott109 Just because you were curious of a quick 'n dirty model. A North dipping (strike 283°, dip 75°) nearly pure left-lateral (rake -6°) with slip up to 5 m. But high residuals by the fault trace come from unwrapping/coherence issues. Let's join descending data.

Did we see it coming in InSAR? Well, both yes and no. The dike deformation is clear in sequences of descending (top) and ascending (bottom) S1 interferograms, but there is no short term deformation warning in the last one (up to ~14 hrs before the eruption). Adriano@CDI-KAUST

Also: Happy Spring & #Nowruz! Happy New Year to all of those who celebrate it. I hope the new year & spring bring everyone peace, prosperity, & happiness. 🧩😃🌱