Susanna Werth's lab for investigating (ground) water resources with innovative remote sensing methods & hydrogeodesy at @vtgeosciences. Opinions are our own.
Joined June 2009
- Tweets 941
- Following 402
- Followers 906
- Likes 2,474
96 Photos and videos
Hydrologic Innovation & Remote Sensing @VT retweeted
9 Dec 2025
*** Policy Implication of Research ***
Recently, Nithesh (@nitheshnirmal), one of our PhD students, published a groundbreaking paper on #sinking #Indian #megacities in @naturesustainab . Citing this study, #NationalGreenTribunal—India’s quasi-judicial authority responsible for enforcing environmental laws—has issued a #nationwide directive to develop #LandSubsidence hazard maps for major Indian cities. I am pleased to see how quickly this research has been translated into policy. Well-done Nithesh!
@HIRSlab @vtgeosciences @EOI_lab
News Article: dtnext.in/news/chennai/ngt-i…
Research Article: nature.com/articles/s41893-0…
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Hydrologic Innovation & Remote Sensing @VT retweeted
4 Dec 2025
India’s major cities are sinking — and infrastructure is at risk.
A Nature Communications study by UNU-INWEH’s Manoochehr Shirzaei & colleagues identifies where building damage is most likely to occur.
🔗 nature.com/articles/s41893-0…
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Hydrologic Innovation & Remote Sensing @VT retweeted
2 Dec 2025
*** Media Coverage ***
here is an excellent report on our recent paper on #indian #megacities #subsidence led by PHD student Nithesh (@nitheshnirmal ) published in @Nature Sustainability.
The report not only discusses the problem but also mentions some of the possible solutions, mainly, #Managed #Aquifer #Recharge.
@HIRSlab @vtgeosciences
@UNUINWEH
youtu.be/w7aNUKnjtLg?si=hbjZ…
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New results: the 2020–2022 drought led to ~3 km³/yr water loss at Lake Mead, incl. groundwater. Remote sensing data show up to 8 mm/yr uplift as the crust rebounds. Drought impacts reach far below the surface. doi.org/10.1016/j.ejrh.2025.…
#Drought #Groundwater #InSAR #WaterManagement
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The study was led by @Khorrami93 , postdoc at Virginia Tech, and co-authors are myself, Sonia Zehsaz and @shirzaei. Thanks to @vtgeosciences @VT_Science.
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Hydrologic Innovation & Remote Sensing @VT retweeted
4 Nov 2025
Using satellite radar data (InSAR), new research by UNUINWEH scientist & colleagues identifies land subsidence hotspots across five Indian cities — linked to groundwater overexploitation.
Findings highlight the need for sustainable groundwater management.
unu.edu/inweh/news/groundwat…
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Hydrologic Innovation & Remote Sensing @VT retweeted
30 Oct 2025
Congratulations to Susanna Werth (@HIRSLab) and Manoochehr Shirzaei (@shirzaei) on this important work on cities sinking in India. @vtgeosciences @VT_Science news.vt.edu/content/news_vt_…
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Hydrologic Innovation & Remote Sensing @VT retweeted
30 Oct 2025
Groundwater decline is making India’s cities sink.
A new study by UNU-INWEH scientist & and colleagues finds that over 2,400 buildings in New Delhi, Mumbai & Chennai face high damage risk — rising to 23,000 across five megacities if trends continue.
🔗unu.edu/inweh/news/groundwat…
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Hydrologic Innovation & Remote Sensing @VT retweeted
30 Oct 2025
Sinking land is quietly destabilizing urban infrastructure in India’s largest cities, putting thousands of buildings and millions of people at risk, according to #VirginiaTech scientists.
news.vt.edu/articles/2025/09…
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Imagine your city slowly sinking. In India’s megacities, 80M people face this reality. New satellite radar research by @nitheshnirmal reveals where the ground is shifting unevenly. 🌍🏠
#LandSubsidence #GroundwaterUse nature.com/articles/s41893-0…
@shirzaei @vtgeosciences @VT_Science
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Welcome Sushrita to the HIRS lab, where she started his PhD studies this semester at the Dept. of Geosciences at Virginia Tech. Her focus will be terrestrial water storage changes in cold regions.
#GRACE #DynamicPlanet #science
@vtgeosciences
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Please join me to welcome Ola to the HIRS & EOI labs. He started his PhD studies this semester at the Dept. of Geosc. at Virginia Tech & will be investigating land subsidence in Virginia's near-coastal areas.
#InSAR #DynamicPlanet #science
@vtgeosciences @shirzaei
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Congratulations, Prof. Sonam Futi Sherpa, for this excellent and important work on the influence of changes in precipitation dynamics in the Himalaya on glacier melting! It was a pleasure working together on this. #GRACEFO #GRACEsatellite
27 Aug 2025
I am excited to announce the publication of our manuscript entitled "Investigating the influence of climate seasonality on glacier mass changes in HMA via GRACE observations" on IEEE JSTARS with @HIRSlab. Here is a link publication: ieeexplore.ieee.org/abstract… #GRACESatellite
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Hydrologic Innovation & Remote Sensing @VT retweeted
8 May 2025
**** NEW PAPER ALERT ****
Just published in @Nature Cities, led by Dr. Ohenhen (@Leonardgeol) and in collaboration with two generations of researchers from @EOI_lab and @HIRSlab of @VT_Science, we map #sinkingland at 28 major #US cities. The results are eye-opening and concerning, but there is time to act! Congratulations, Leonard and team!
@UNUINWEH @vtgeosciences
link: nature.com/articles/s44284-0…
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Hydrologic Innovation & Remote Sensing @VT retweeted
16 Apr 2025
*** Congratulations***
Please join me in congratulating Dr. Mohammad Khorrami (@Khorrami93) on successfully passing his thesis defense! This is a tremendous achievement, and we are all proud of his hard work and dedication.
@EOI_lab @HIRSlab @UNUINWEH @vtgeosciences
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Hydrologic Innovation & Remote Sensing @VT retweeted
2 Apr 2025
We are about to start @AMNH
We have a full house but there is room upstairs!
Link: bit.ly/3F9GBtK
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The HIRS and EOI labs got DoD funding to study vertical land motions in Alaska. We will investigate their interactions with the water cycle in permafrost regions. Read the story at VT News: news.vt.edu/articles/2025/03…
@shirzaei @EOI_lab @vtgeosciences
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Hydrologic Innovation & Remote Sensing @VT retweeted
12 Mar 2025
Here is the official citation!
Very well deserved, Florence!
@EOI_lab
@HIRSlab
@vtgeosciences
@VT_Science
Link: agu.org/user-profile?cstkey=…
7 Mar 2025
***** CONGRATULATIONS *****
I am pleased to announce Florence Onyike, a graduate student @EOI_lab of @VT_Science has received an Outstanding Student Presentation Award (OSPA) for her presentation @theAGU 2024. Many congratulations, very well-deserved.
@UNUINWEH @vtgeosciences @HIRSlab
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Hydrologic Innovation & Remote Sensing @VT retweeted
15 Feb 2025
Here is an excellent coverage of our recent publication by @UNUINWEH .
@vtgeosciences @vtnews @VT_Science @EOI_lab @HIRSlab
15 Feb 2025
Aging infrastructure, climate change & political instability create a dangerous mix—leading to catastrophic dam failures.
In their latest research, our scientists highlight the urgent need for global action on #InfrastructureResilience.
Read more: unu.edu/inweh/news/aging-inf…
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Urgent Weather Advisory: All Blacksburg campus in-person classes and activities canceled Wednesday, Feb. 12, 2025. More info at vt.edu/status
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