Results 231 to 240 of about 28,768 (293)

Environmental Features Associated With At-Sea Sightings of Snow Petrel <i>Pagodroma nivea</i> in East Antarctica. [PDF]

open access: yesEcol Evol
Viola B   +8 more
europepmc   +1 more source

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

open access: yesRiver Research and Applications, Volume 42, Issue 4, Page 886-900, May 2026.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert   +5 more
wiley   +1 more source

Software to Support Remote Sensing of River Discharge Based on Critical Flow Theory

open access: yesRiver Research and Applications, Volume 42, Issue 4, Page 915-928, May 2026.
ABSTRACT Water resource management requires accurate observations of streamflow but standard field methods for measuring river discharge ( Q ) can be costly and hazardous for equipment and personnel. Remote sensing has become a viable alternative, but many image‐based techniques require field data for calibration, and depth and velocity can seldom be ...
Carl J. Legleiter, Inhyeok Bae
wiley   +1 more source

Variation in food availability affects the population age structure of Atlantic puffins Fratercula arctica in the Faroe Islands

open access: yesWildlife Biology, Volume 2026, Issue 3, May 2026.
Across their entire Atlantic breeding range, Atlantic puffins Fratercula arctica have experienced decreases in food availability, often leading to population declines. The species is one of the most numerous seabirds in Føroyar (the Faroe Islands, in English) but has faced apparent, unquantified population declines.
Anne N.M.A. Ausems   +3 more
wiley   +1 more source

Quantifying Decadal‐Scale Impacts of Flow and Sediment Regulation on an Alpine Gravel‐Bed River and Consequences for Fish Habitat: The Buëch River, France

open access: yesWater Resources Research, Volume 62, Issue 5, May 2026.
Abstract Predicting long‐term effects of dam operation and restoration strategies on channel morphology remains a complex but essential challenge for maintaining fish habitat through effective reservoir management. We address this challenge by integrating a one‐dimensional morphodynamic model and a generalized fish habitat model using one‐dimensional ...
S. Jafarinik   +4 more
wiley   +1 more source

Seafloor Sediments, Morphologic Features, and Geotechnical Properties of Harrison Bay in the Alaskan Beaufort Sea

open access: yesEarth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Sediments on Arctic continental shelves are impacted by sea ice and ice‐related processes for up to 9 months per year. As a result, seabed morphology in cold regions can exhibit features such as ice scours which are absent on lower‐latitude shelves.
E. F. Eidam   +7 more
wiley   +1 more source

Beaked whale dive behavior and acoustic detection range off Louisiana using three-dimensional acoustic tracking. [PDF]

open access: yesPLoS One
Frouin-Mouy H   +6 more
europepmc   +1 more source

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