The recent SnowEx campaign and the new NISAR satellite mission are lighting the way to high-resolution snowpack monitoring and improved decisionmaking in critical river basins around the world.
SAR
Synthetic Aperture Radar and Interferometric Synthetic Aperture Radar
Posted inNews
Parts of New Orleans Are Sinking
Areas near the airport, along floodwalls, and in nearby wetlands are subsiding because of a combination of natural and anthropogenic forces.
Posted inEditors' Highlights
Mapping the Whereabouts of Continents
A new method integrates Interferometric Synthetic Aperture Radar (InSAR) with conventional ground geodetic networks, taking us closer to high-resolution mapping of plate motions.
Posted inThe Landslide Blog
Movement of the Joshimath landslide in India
A new paper (Dalal et al. 2025) in the journal Engineering Geology examines movement of a major landslide complex in India. It shows that the slope reactivated in 2018, probably as a result of the loss of vegetation and poor management of water. Loyal readers will remember a series of posts that I made back […]
Posted inResearch Spotlights
Subtle Coastal Sinking Raises Storm Surge Risks
New detection of millimeter-scale subsidence along vulnerable coastlines means flood risk predictions may be inaccurate.
Posted inThe Landslide Blog
New satellite imagery of the 11 May 2024 tailings failure at Siana in Surigao del Norte, Philippines
The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. Just under a month ago, I wrote about the tailings failure at the Siana gold mine in Surigao del Norte, Philippines. Capella Space captured good radar imagery of the site. We now […]
Posted inNews
Sinking Cities and Rising Waters
Climate-driven sea level rise combines with land subsidence in some of Africa’s fastest-growing cities.
Posted inEditors' Highlights
Rapid Evolution of Volcanic Systems Reflected in Magnetics
Spatiotemporal magnetic monitoring along with InSAR models is a powerful tool to image magmatic, hydrothermal, and mechanical changes within the volcanic edifice of the Piton de la Fournaise.
Posted inEditors' Highlights
Satellites Detect Groundwater Recharge for San Joaquin Valley
A new study integrates spaceborne InSAR time series and GPS to resolve spatiotemporal patterns of deformation across the San Joaquin Valley indicating recharge areas and pathways for groundwater flow.
Posted inNews
More Than Just Astronomy: Radio Telescopes for Geophysics
Linking an existing network of radio telescopes with satellite radar would make it possible to measure ground displacements in a globally consistent way, scientists propose.