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- One year ago today: blue skies over Cape Horn
- One year ago yesterday: volcanoes and fossils and elephant seals, oh my!
- Sumatra +10: contemplating the power of tsunami
- One year ago today: Christmas in Antarctica with the Americans and Brits
- One year ago today: Antarctic bases old and new, and the most mind-blowing scenery in the world
- One year ago today: landfall on the Antarctic Peninsula proper, more penguins, and an avalanche!
- One year ago today: Into the icy Weddell Sea and Antarctic Sound
- One year ago today: first icebergs, first Antarctic landing, first penguins!
- On One year ago today: blue skies over Cape Horn:
- Lockwood: My great-great grandfather and namesake, Charles Brown Lockwood, wrote in his short autobiography... Read
- Anne Jefferson: Thanks, Nina! We had a lot of fun going back through our journals and photos and culling nearly... Read
- Nina F: Wow. Thank so much, Anne, for your postings from Antarctica. I have enjoyed them all. The images are... Read
- Lockwood: Tweeted this earlier WRT the In Focus photo piece: “Very glad people/cities have recovered so... Read
Tag Archives: fluvial geomorphology
These four papers all attempt to understand what controls the sediments that make up the streambed and floodplain and that get preserved in the geologic record. White et al. look at how riffle positions are governed by valley width variations, while Jerolmack and Brzinski find striking similarities in grain size transitions observed in rivers and dune fields. Hart et al. examine the relationship between glacial advances and downstream sediment deposition, while Sambrook Smith et al. investigate the sedimentological record of floods. Continue reading
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. Continue reading
Some notes on the hydrogeology and geomorphology sessions and activities at the Geological Society of America meeting
Meandering rivers are the most common river form on Earth, yet building a meandering river in a laboratory flume eluded scientists for decades. A new paper in PNAS shows the first results of a self-maintaining, coarse-bedded meandering river in a flume.