Results 161 to 170 of about 2,106 (266)

The Transboundary Reach of the Columbia River: Cottonwood Colonization Followed Flow Moderation From the Columbia River Treaty Dams

River Research and Applications, EarlyView.
ABSTRACT The Columbia river provides the largest Pacific outflow in the Western Hemisphere and the greatest hydropower production of any North American river system. For hydropower generation and flood risk management, four massive water storage reservoirs followed the Columbia River Treaty between Canada and the United States, with three Canadian dams,
Colleen A. Phelan, Greg Utzig, Stewart B. Rood   +2 more
wiley   +1 more source

Thinning Antarctic glaciers expose high-altitude nunataks delivering more bioavailable iron to the Southern Ocean. [PDF]

Nat Commun
Winter K, Woodward J, Dunning SA, Jordan JR, Graly JA, Westoby MJ, Henley SF, Raiswell R.   +7 more
europepmc   +1 more source

Using Fine Sediment Monitoring to Quantify Sand Loading Over Time

River Research and Applications, EarlyView.
ABSTRACT Riverine sand loading can lead to geomorphic change, impacting river processes like lateral migration and vertical aggradation or degradation. Yet many sediment monitoring programs track only fine sediment measurable as total suspended solids (TSS). Here, we assess the ability for TSS data to be used to determine sand loading.
Andrew P. Kasun, Karen B. Gran
wiley   +1 more source

Automated mapping of glacial lakes in Himachal Pradesh using multi source remote sensing data and machine learning. [PDF]

Sci Rep
Pathak B, Singh A, Tiwari RK, Shukla DP.
europepmc   +1 more source

Comparing convolutional neural network and random forest for benthic habitat mapping in Apollo Marine Park

Remote Sensing in Ecology and Conservation, EarlyView.
A comparison of Convolutional Neural Network (CNN) and Random Forest (RF) model predictions of benthic habitats within Apollo Marine Park. The CNN (left) and RF (right) classification maps show the spatial distribution of three habitat types: high energy circalittoral rock with seabed‐covering sponges, low complexity circalittoral rock with non‐crowded
Henry Simmons, Dang Nguyen, Benjamin Misiuk, Daniel Ierodiaconou, Sunil Gupta, Oli Dalby, Mary Young   +6 more
wiley   +1 more source

Meltwater ponding has an underestimated radiative effect on the surface of the Greenland Ice Sheet. [PDF]

Nat Commun
Ryan JC, Cooper MG, Cooley SW, Rennermalm ÅK, Smith LC.   +4 more
europepmc   +1 more source

Semi‐automated seal detection on the Western Antarctic Peninsula: an unsupervised machine learning approach for detecting ice seals in aerial survey data

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a semi‐automated, rule‐based image analysis pipeline to detect ice seals in aerial surveys of the Western Antarctic Peninsula during an unusually low sea ice year. By using simple hierarchical clustering instead of deep learning, the method substantially reduced human annotation effort while achieving 82% recall, identifying 758 ...
Claire McGinnity, Connor C.G. Bamford, Nathan Fenney, Andrew Fleming, Jaume Forcada, Michael S. Tift, Luis A. Hückstädt, Daniel P. Costa, Peter T. Fretwell   +8 more
wiley   +1 more source

An 85-year record of glacier change and refined projections for Kennicott and Root Glaciers, Alaska. [PDF]

Nat Commun
Wells A, Tober BS, Child SF, Rounce DR, Loso MG, Hults CP, Truffer M, Holt JW, Christoffersen MS.   +8 more
europepmc   +1 more source

Historical remote sensing highlights long‐term persistence of Emperor Penguin (Aptenodytes forsteri) colonies

Remote Sensing in Ecology and Conservation, EarlyView.
Remote sensing can reveal population dynamics of Antarctic penguin colonies. In this study, we analyze emperor penguin (Aptenodytes forsteri) guano stains in remote sensing imagery and discover colony presence predating known records for 18 colonies across Antarctica.
Martynas Bielinis, Michelle LaRue, Benjamin M. Kraemer, Catalina Munteanu   +3 more
wiley   +1 more source

Tidewater cycle drives alpine glacial sediment plume geochemistry. [PDF]

Nat Commun
Forsch KO, Ruacho A, Aarons SM.
europepmc   +1 more source