Category Archives: geomorphology

Edible debris flow

Steep hillslopes with loose sediment are at risk from debris flows triggered by heavy rain or rapid snowmelt. As water is added to the hillslope, surface runoff or positive pore water pressure catastrophically destabilizes a portion of the slope. I decided to undertake my own research and investigate the possibilities for an edible analog for debris flows. Continue reading

Categories: by Anne, geohazards, geomorphology

Flooding on the flanks of Mt. Hood

It’s the middle of January. You’ve traveled to Oregon’s majestic Mount Hood for a weekend of skiing the snow- and glacier-covered slopes. On Saturday morning when you begin to head up the mountain from Portland, it’s warm and raining. “No … Continue reading

Categories: by Anne, geomorphology, hydrology

Ten million feet upon the stair

During my time in Edinburgh, I lived in an apartment in a nice old tenement building: several floors of individual flats, all connected by an internal communal staircase. The building is at least a century old, and because this was … Continue reading

Categories: deep time, environment, geomorphology

The flat of the land

Just as there are many ways that a landscape can end up being pointy, there are several ways that it can end up being flat. Continue reading

Categories: geology, geomorphology

The Driftless Area: Fewer glaciers but more topography than the rest of Minnesota

Tucked into the corner where Minnesota, Wisconsin, and Iowa meet there’s a special area with a Quaternary history that sets it apart from the rest of the northern United States. At the Last Glacial Maximum, the Des Moines lobe lay … Continue reading

Categories: by Anne, geomorphology, outcrops, Pleistocene