Will creating artificial (beaver) dams in incised channels in central Oregon help raise the water table and restore meadow grasses for grazing?

The October 2007 breaching of a temporary cofferdam constructed during removal of the 15-meter (m)-tall Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 cubic meters (m3) of sand and gravel filling the former reservoir became available to a high-gradient river.

Roaring Spring emerges from old lava flows high in the headwaters of the McKenzie River. Cold (4C), clear and abundant, this spring's flow is equal to 1% of the water in the Willamette River at Portland Harbor.

Summer 2015 Survey Crew on Boulder Creek, Upper McKenzie River

The 2015 drought represents a unique opportunity to test fundamental hypotheses for how mountain streams respond to anticipated and dramatic changes in amount and timing of recharge. Survey Crew; Laura Hempel, Cara Walter, Sarah Lewis & Austin Hall at Boulder Creek, Upper McKenzie River, Oregon.

Structure for motion (SfM) survey of Jack Creek

Student Laura Hempel surveys Jack Creek in the Deschutes National Forest with a digital camera and painter's pole. The photos will be processed using a digital photogrammetry technique called "Structure from Motion," that creates a 3D model using photos taken from different angles.

Measuring hyporheic flow in the Clackamas River

The Influence of Hyporheic Flow on River Temperature: River water emerging from naturally occurring gravel bars on a hot summer day may be as much as 2°C cooler than mainstem flow. We explored the potential thermal benefits of hyporheic exchange from proposed gravel augmentation on the Clackamas River, Oregon.

Home Page

Recent Publications

2023

A.E. East; G.E. Grant , 2023 , A watershed moment for western U.S. dams

X. Comas; S. Kruse; G. Grant; B. Hanson; L. Lyon , 2023 , Envisioning a near-surface geophysics center for convergent science

C.E. Gombert; S.T. Lancaster; R.L. Flitcroft; G.E. Grant , 2023 , Novel dimensionless index for physically based assessment of thermal refugia characterizes off-channel habitat on gravel bed river

2022

H.R. Dietterich; G.E. Grant; K.V. Cashman; B. Fasth; J.J. Major , 2022 , Can lava flow like water? Applying hydraulic critical flow theory to measuring lava effusion rates

H.R. Dietterich; M.R. Patrick; B.B. Carr; E. Gallant; D. Hyman; A.K. Diefenbach; K.V. Cashman; G.E. Grant , 2022 , New insights into lava flow dynamics and hazards from the 2018 eruption of Kilauea, Hawaii

H.R. Dietterich; G.E. Grant; B. Fasth; J.J. Major; K.V. Cashman , 2022 , Watch: Enormous waves of lava can help predict volcanic flows; Ripples in molten rock helped improve flow forecasts during a destructive eruption in Hawaii

Home Page

Recent Publications

2023

2022

In the News

Pages