Cross-posted at Highly Allochthonous When water infiltrates past the ground surface and begins to percolate through the soil’s unsaturated zone, it doesn’t move downward like an even sheet. Instead, fast fingers of water move downward along pores, roots and other places where flow is easier than through the soil matrix, …
In the September issue of GSA Today, you can find our article on The Internet as a resource and support network for diverse geoscientists. Where do we go from here?
How do rivers erode bedrock streams, during big floods, and in the presence of groundwater? Laboratory and accidental experiments are providing some cool new insights.
How long does it *really* take water to move through a watershed?
How large reservoirs affect our measurements of global sea level rise…and how the world’s biggest river basins are going to respond to mid-century climate change
How does a landscape go from looking like this… to looking like this? Find out in my new paper in Earth Surface Processes and Landforms. Hint: Using a chronosequence of watersheds in the Oregon Cascades, we argue that the rates and processes of landscape evolution are driven by whether the …
For large urban streams, the standard practices in stream and habitat restoration are sometimes not possible, often because decades of infrastructure development have pinned the stream into a narrow corridor. So other approaches need to be considered, and Robert Francis and Simon Hoggart of King’s College London discuss ways that existing artificial structures can be put to work to mitigate some of the ecological impacts of urbanization
Cross posted at Highly Allochthonous The Yellowstone caldera is home to thousands of geothermal springs and 75% of the world’s geysers, with kilometers-deep groundwater flow systems that tap magmatic heat sources. As that hot groundwater rises toward the surface, it interacts with shallower, cooler groundwater to produce multi-phase mixing, boiling, …
Cross-posted at Highly Allochthonous I’m a few days behind on sharing my picks from December’s journals, but Chris has been doing such a stupendous job of sharing absolutely wonderful geology posts (and of deconstructing terrible science reporting), that I hardly feel guilty waiting until he’s occupied with travels before sneaking …
Cross-posted on Highly Allochthonous Doing some last minute shopping for the young’uns on your list? Want to inspire a love and respect for the natural world? Then take the kid outside for a hike up a mountain or splash in a stream and let them experience first-hand how amazing Earth’s …