Results 51 to 60 of about 1,047 (170)

Improved reflectance calculation in full-waveform LiDAR considering the angle of incidence [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Reflectance is a widely used feature for all types laser scanning data. Thus, the accuracy and improvement of the reflectance parameter is a persistent topic of research. For short laser pulses with medium-sized footprints, previous work has investigated
J. Rhomberg-Kauert, F. Pöppl, F. Pöppl, H. Laasch, M. Pfennigbauer, G. Mandlburger   +5 more
doaj   +1 more source

Coral size patterns across environmental gradients and morphologies

Ecosphere, Volume 17, Issue 5, May 2026.
Abstract Coral reefs are essential ecosystems that provide important ecological services and support the livelihoods of millions of people worldwide. Understanding the size structure of coral populations is critical for assessing recovery potential; yet, our knowledge of how environmental conditions influence coral size structure, across a range of ...
Marine Lechene, Mariana Álvarez‐Noriega, Madison Becker, Maren Toor, Sophie Gordon, Tiny Remmers, Will Figueira, Mia Hoogenboom, Renata Ferrari   +8 more
wiley   +1 more source

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

River 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, Theresa Himmelsbach, Florian Pöppl, Lucas Dammert, Martin Pfennigbauer, Gottfried Mandlburger   +5 more
wiley   +1 more source

Alois Riegl, ‘Lovers of art, ancient and modern’ , Translated with an introduction by Karl Johns [PDF]

Journal of Art Historiography, 2013
This paper was originally given as a lecture to the Wiener Kunstfreunde and posthumously published as ‘Über antike und moderne Kunstfreunde Vortrag gehalten in der Gesellschaft der Wiener Kunstfreunde,’ Kunstgeschichtliches Jahrbuch der K. K.
Alois Riegl, Karl Johns
doaj  

Observations of the Subsurface Structure of TKE Dissipation Rates Near the Martha's Vineyard Coastal Observatory

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract We present observations of subsurface turbulent kinetic energy (TKE) dissipation rates under moderate‐to‐strong wind forcing on the western North Atlantic shelf. Estimates derived using the structure function method show a clear enhancement relative to law‐of‐the‐wall expectations in the upper water column, with convergence toward rigid‐wall ...
A. Cifuentes‐Lorenzen, J. O’Donnell, C. J. Zappa, D. Ullman, Y. Shin, L. Hogan   +5 more
wiley   +1 more source

Assessing the Spatiotemporal Variability in Geotechnical Sediment Properties of Beach Cusps on a Sandy Beach

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 5, May 2026.
Abstract This study examined the spatiotemporal variability in geotechnical properties of beach cusp sediments on a sandy beach and tested if such variability can be used for cusp monitoring from satellite imagery. Specifically, sediment properties (including moisture content (w), relative density (Dr), sediment strength (QSBC) and friction angle (ϕ ...
Stephen Adusei, Nina Stark, Jonathan Hubler, Tian‐Jian Hsu   +3 more
wiley   +1 more source

Was Alois Riegl Colour Blind?

CLARA, 2022
In his formalist art history, Alois Riegl (1858-1905) focuses on figure and ground, light and dark, and tactile versus optical features. Strangely, he shows little interest in colour. Thus, in Stilfragen (1893) and in Spätrömische Kunstindustrie (1901) artefacts and monuments are discussed as if they were fashioned in black and white.
openaire   +3 more sources

Development and Evaluation of a Simple Geometric Radiation Absorption Model for Discontinuous Canopies With Ellipsoidal Crown Shapes

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Large‐scale canopy models utilizing satellite data typically rely on simplified models to describe radiation absorption by vegetation. However, these models' accuracy can be limited when applied to heterogeneous row‐oriented canopies because of assumptions of canopy homogeneity, or oversimplification of the impacts of heterogeneity. This study
María A. Ponce de León, Kyle R. Knipper, Nicolas E. Bambach, William P. Kustas, Andrew J. McElrone, Matthew C. Roby, Kyle T. Rizzo, Ethan H. Frehner, Brian N. Bailey   +8 more
wiley   +1 more source

Snow Water Storage Within Eight Pacific Coastal Watersheds in British Columbia (Canada) Inferred From Four Years of Airborne Lidar Data

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Maritime mountain snowpacks are among the least understood and most poorly quantified components of global snow water storage, despite their vital role in sustaining water supplies and ecosystem health. Here, we present a 4‐year record of snow mass distribution across eight small‐to‐medium‐sized (5.2–63.4 km2) watersheds within the coastal ...
R. Bisset, W. C. Floyd, B. Menounos, A. Bishop, S. Marchenko, G. Fisk, A. Cebulski, P. Marshall, D. Heathfield, S. Beffort, R. White, S. Gonzalez Arriola, N. Viner   +12 more
wiley   +1 more source

A materialidade da coleção mário aristides freire (maf) sob a ótica dos valores de monumento de Riegl

Encontros Bibli, 2020
Objetivo: Discutir a potencialidade da materialidade documentária da Coleção Mário Aristides Freire (Coleção MAF) sob a ótica dos valores de Riegl e sob a perspectiva de Frohmann em relação aos contextos institucional, tecnológico, político, econômico e ...
Lucileide Andrade de Lima do Nascimento, Janete Aparecida Ferreira Martins   +1 more
doaj   +1 more source