@sedimentdynamic

Assistant Prof. @CEE, UIUC. Studies sediment transport and geomorphology from the land surface to the seafloor.

 Beijing, China; Irvine, CA.
scholar.google.com/citations?user=ptoijOwAAAAJ&hl=en
Joined December 2016
  • Tweets1.3K
  • Following895
  • Followers809
18Media
Appreciate the news report from @NewsfromScience @erikstokstad science.org/content/article/…

Dams are supposed to prevent floods. Some may make them worse

“Provocative” study argues barriers create dunes that can slow down floods and raise water levels

science.org
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In a global assessment of global river deltas, researchers uncovered a scaling relationship between channel length and land-building extent that echoes the so-called “Hack’s law” in river networks. Learn more this week in Science: scim.ag/4cVFTNZ
During summer, sediment-laden water flows through the branching channel networks of the Yukon River delta in western Alaska, spreading into Norton Sound and depositing sediment thereabouts. The channelized flows and their spreading pattern exhibit a scaling relation between length and area observed across deltas worldwide, which suggests a universal rule for delta growth that resembles Hack’s law for river networks in upstream watersheds. Credit: Copernicus Sentinel-2 L2A data, true color imagery, captured 23 July 2024 (image sourced 2026)

ALT During summer, sediment-laden water flows through the branching channel networks of the Yukon River delta in western Alaska, spreading into Norton Sound and depositing sediment thereabouts. The channelized flows and their spreading pattern exhibit a scaling relation between length and area observed across deltas worldwide, which suggests a universal rule for delta growth that resembles Hack’s law for river networks in upstream watersheds. Credit: Copernicus Sentinel-2 L2A data, true color imagery, captured 23 July 2024 (image sourced 2026)

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I am excited to share that my research article is now published in Science and featured on the cover! I am very grateful to all of the coauthors (Lawrence, @sedimentdynamic, Alex, @timgoudge ) for this major team effort. Thank you @NSF and @utrgv for the support
Science Magazine
@ScienceMagazineApr 30
In a global assessment of global river deltas, researchers uncovered a scaling relationship between channel length and land-building extent that echoes the so-called “Hack’s law” in river networks. Learn more this week in Science: scim.ag/4cVFTNZ
During summer, sediment-laden water flows through the branching channel networks of the Yukon River delta in western Alaska, spreading into Norton Sound and depositing sediment thereabouts. The channelized flows and their spreading pattern exhibit a scaling relation between length and area observed across deltas worldwide, which suggests a universal rule for delta growth that resembles Hack’s law for river networks in upstream watersheds. Credit: Copernicus Sentinel-2 L2A data, true color imagery, captured 23 July 2024 (image sourced 2026)

ALT During summer, sediment-laden water flows through the branching channel networks of the Yukon River delta in western Alaska, spreading into Norton Sound and depositing sediment thereabouts. The channelized flows and their spreading pattern exhibit a scaling relation between length and area observed across deltas worldwide, which suggests a universal rule for delta growth that resembles Hack’s law for river networks in upstream watersheds. Credit: Copernicus Sentinel-2 L2A data, true color imagery, captured 23 July 2024 (image sourced 2026)

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Haven't used this platform in a while. This is a test: who is still there?
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Hongbo Ma retweeted
Teng Man@TMan052013 Feb 2025
Microscale insights into shear viscosity scaling of granular suspensions across the jamming transition pubs.aip.org/aip/pof/article…

Microscale insights into shear viscosity scaling of granular suspensions across the jamming...

We present evidence of the jamming transition across semi-dilute to dense regimes in suspensions from a thorough study combining both experiments and numerical

pubs.aip.org
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Hongbo Ma retweeted
RCEM2025@rcem202513 Feb 2025
🚨 Only 2 days left to submit your abstract for #RCEM2025! 🚨 Don't miss the chance to share your research with the morphodynamics community. Submit now! 📩 ⏳ 👉 esdeveniments.upc.edu/go/rce… #Coastal #River #Estuarine #Morphodynamics #AbstractDeadline
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📢 We are hiring a postdoc to work on remote sensing of soil carbon and land degradation! 🌱🗺️ The position will be hosted by the Earth Intelligence Lab & @mitenergy, with an earliest start date of April 2025. To apply: forms.gle/9iDJRX4nG7odXJLa9
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Hongbo Ma retweeted
RCEM2025@rcem202511 Feb 2025
🌊✨ Exciting news! At #RCEM2025, there will be a dedicated session for #WICGE (Women in Coastal Geoscience & Engineering), fostering inclusion & visibility in coastal research. On this #11F, let's celebrate and amplify women in science! 💙🌍 #WomenInSTEM #CoastalScience
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In @NatureClimate, we show that a year above 1.5 °C signals that Earth is most probably within the 20-year period that will reach the Paris Agreement limit. nature.com/articles/s41558-0…

A year above 1.5 °C signals that Earth is most probably within the 20-year period that will reach...

Nature Climate Change - What a first year with temperature 1.5 °C above the pre-industrial baseline implies for long-term temperature goals is unclear. Here the authors show that such a...

nature.com
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How can the restored groundwater table change the earthquake risk? Our work published at @NatureComms made the first cut on this issue. (shorturl.at/orgnj) In short, the restored groundwater table INCREASES earthquake-induced liquefaction extent and severity. 1,

Rising groundwater table due to restoration projects amplifies earthquake induced liquefaction risk...

Nature Communications - The authors find that groundwater table recovery leads to a remarkable increase in seismic liquefaction risk in Beijing. The findings highlight the necessity to consider the...

nature.com
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more replies
5. Considering the similar urbanization process worldwide, i.e the pattern of the sync extraction-construction and a later restoration, this case provides a fair warning to (re)evaluate the earthquake risk of the region with recovering groundwater tables.
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6 and the last. While we should not underestimate the benefits of groundwater restoration (to ecology and ground subsidence mitigation), its unanticipated risk should raise more awareness for local residents, structure designers, and risk evaluators...
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6 and the last. While we should not underestimate the benefits of groundwater restoration (to ecology and ground subsidence mitigation), its unanticipated risk should raise more awareness for local residents, structure designers, and risk evaluators...
Hongbo Ma@sedimentdynamic10 Feb 2025
5. Considering the similar urbanization process worldwide, i.e the pattern of the sync extraction-construction and a later restoration, this case provides a fair warning to (re)evaluate the earthquake risk of the region with recovering groundwater tables.
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5. Considering the similar urbanization process worldwide, i.e the pattern of the sync extraction-construction and a later restoration, this case provides a fair warning to (re)evaluate the earthquake risk of the region with recovering groundwater tables.
Hongbo Ma@sedimentdynamic10 Feb 2025
4. In this study, we used Beijing as a demonstration where the South-to-North Water Diversion Project （the world's largest）significantly recovered the previously low groundwater table. Its earthquake-induced liquefaction extent and severity has drastically increased
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4. In this study, we used Beijing as a demonstration where the South-to-North Water Diversion Project （the world's largest）significantly recovered the previously low groundwater table. Its earthquake-induced liquefaction extent and severity has drastically increased
Hongbo Ma@sedimentdynamic10 Feb 2025
3. As groundwater restoration projects kick in, the shallower, rising groundwater table facilitates a granular phenomenon called soil liquefaction whereby shaking ground builds up excessive pore pressure in the saturated soil, which loosens grain contacts and their strength.
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3. As groundwater restoration projects kick in, the shallower, rising groundwater table facilitates a granular phenomenon called soil liquefaction whereby shaking ground builds up excessive pore pressure in the saturated soil, which loosens grain contacts and their strength.
Hongbo Ma@sedimentdynamic10 Feb 2025
2. Together with urbanization, groundwater extraction is usually the first choice for the urban water supply, and its process syncs with the urbanization process. So, a large majority of urban structures were constructed on a lowering groundwater table
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2. Together with urbanization, groundwater extraction is usually the first choice for the urban water supply, and its process syncs with the urbanization process. So, a large majority of urban structures were constructed on a lowering groundwater table
Hongbo Ma@sedimentdynamic10 Feb 2025
How can the restored groundwater table change the earthquake risk? Our work published at @NatureComms made the first cut on this issue. (shorturl.at/orgnj) In short, the restored groundwater table INCREASES earthquake-induced liquefaction extent and severity. Thread 1

Rising groundwater table due to restoration projects amplifies earthquake induced liquefaction risk...

Nature Communications - The authors find that groundwater table recovery leads to a remarkable increase in seismic liquefaction risk in Beijing. The findings highlight the necessity to consider the...

nature.com
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How can the restored groundwater table change the earthquake risk? Our work published at @NatureComms made the first cut on this issue. (shorturl.at/orgnj) In short, the restored groundwater table INCREASES earthquake-induced liquefaction extent and severity. Thread 1

Rising groundwater table due to restoration projects amplifies earthquake induced liquefaction risk...

Nature Communications - The authors find that groundwater table recovery leads to a remarkable increase in seismic liquefaction risk in Beijing. The findings highlight the necessity to consider the...

nature.com
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