Results 61 to 70 of about 4,893 (212)

ECHOSAT: Estimating Canopy Height Over Space And Time

CoRR
Forest monitoring is critical for climate change mitigation. However, existing global tree height maps provide only static snapshots and do not capture temporal forest dynamics, which are essential for accurate carbon accounting. We introduce ECHOSAT, a global and temporally consistent tree height map at 10 m resolution spanning multiple years. To this
Jan Pauls, Karsten Schrödter, Sven Ligensa, Martin Schwartz, Berkant Turan, Max Zimmer, Sassan Saatchi, Sebastian Pokutta, Philippe Ciais, Fabian Gieseke   +9 more
openaire   +2 more sources

Orchard netting impacts on biodiversity leading to cascading effects at the ecosystem level

Biological Reviews, EarlyView.
ABSTRACT Agriculture must ensure food production without further compromising the ecosystem functions upon which it depends. Agricultural practices should therefore avoid harming farmland biodiversity, especially of taxa that supply the key ecosystem services (e.g.
Corrado Alessandrini, Karan Sethi, Emanuela Granata, Ekaterina Mogilnaia, Valeria Vitangeli, Giovanni Zanfei, Chiara Fedrigotti, Paolo Biella, Dino Scaravelli, Luigi Marchesi, Péter Batáry, Diego Rubolini, Paolo Pedrini, Mattia Brambilla   +13 more
wiley   +1 more source

What drives animal responses to high severity fire? The role of functional traits

Biological Reviews, EarlyView.
ABSTRACT Fire regimes are changing worldwide, with increases in the frequency, extent, and severity of fires posing growing risks to biodiversity. Fire severity – the degree of habitat alteration following fire – strongly influences both immediate survival and long‐term recovery of fauna.
Grace A. Vielleux, Trent D. Penman, Victoria A. Reynolds, Matthew H. Swan   +3 more
wiley   +1 more source

Modified F‐tests for assessing tree radial growth under linear‐circular regression models with correlated errors: A comprehensive toolbox rooted in G. E. P. Box's theorems

Canadian Journal of Statistics, EarlyView.
Abstract Annual tree growth is a complex biological process. Modelling radial growth in the trunk by linear‐circular regression with one mode and correlated errors has allowed the definition and assessment of a preferred direction for 1 and 2 years. Here, modified F$$ F $$‐tests are presented for 3 years, 1 mode/year; 1 year, 2 modes for possible main ...
Pierre Dutilleul, Tomoaki Imoto, Kunio Shimizu   +2 more
wiley   +1 more source

Mapping Forest Canopy Fuels in the Western United States with LiDAR–Landsat Covariance

Remote Sensing, 2020
Comprehensive spatial coverage of forest canopy fuels is relied upon by fire management in the US to predict fire behavior, assess risk, and plan forest treatments.
Christopher J. Moran, Van R. Kane, Carl A. Seielstad   +2 more
doaj   +1 more source

Depth Any Canopy: Leveraging Depth Foundation Models for Canopy Height Estimation

Estimating global tree canopy height is crucial for forest conservation and climate change applications. However, capturing high-resolution ground truth canopy height using LiDAR is expensive and not available globally. An efficient alternative is to train a canopy height estimator to operate on single-view remotely sensed imagery. The primary obstacle
Daniele Rege Cambrin, Isaac Corley, Paolo Garza   +2 more
openaire   +3 more sources

Microclimate mediates the strength and direction of avian biotic interactions

Ecography, EarlyView.
Theory predicts that the strength and direction of species interactions can shift from being competitive in benign environments toward being facilitative in stressful environments. However, the environmental context dependency of species interactions has rarely been tested in animal communities.
Sarah J. K. Frey, Brian D. Gerber, Adam S. Hadley, Hankyu Kim, Madison Sutton, Nina C. Ferrari, Matthew G. Betts   +6 more
wiley   +1 more source

Mapping Forest Height and Temporal Decorrelation With SAOCOM and GEDI Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Polarimetric SAR interferometric (PolInSAR) methods have proven effective for estimating canopy height using airborne data, yet their application with spaceborne sensors remains limited.
Santiago Seppi, Carlos Lopez-Martinez, Marisa Jacqueline Joseau   +2 more
doaj   +1 more source

The Transferability of Random Forest in Canopy Height Estimation from Multi-Source Remote Sensing Data

Remote Sensing, 2018
Canopy height is an important forest structure parameter for understanding forest ecosystem and improving global carbon stock quantification accuracy.
Shichao Jin, Yanjun Su, Shang Gao, Tianyu Hu, Jin Liu, Qinghua Guo   +5 more
doaj   +1 more source

On the Change of Plant Canopy Height with Wind Velocity

Journal of Agricultural Meteorology, 1969
A following relation between roughness lenghth (Z0) and zero-plane displacement (d) in the wind profile of very rough surfaces has been deduced recently (TAKEDA, 1966):lnH-d/Z0=k2/αH-d/H (1)where k=0.4 (von Karuman's constant), α=0.087 and H denotes the roughness height.
TAKAMI, Shinichi, MAKI, Taichi
openaire   +2 more sources