Results 81 to 90 of about 6,255,972 (249)

A validated 3D point‐cloud analysis workflow for the creation of seagrass canopy height models

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Seagrasses support highly productive ecosystems in both temperate and tropical waters and provide essential ecosystem services. Despite their importance, the vertical structure of seagrasses (i.e. the canopy) remains poorly characterised at the microscale, even though it is a strong predictor of ecological processes that influence both ...
Daniele Ventura
wiley   +1 more source

Land surface albedo dynamics

open access: yes, 2014
The land surface albedo represents the fraction of solar radiation scattered backward by land surfaces. In the presence of vegetation, surface albedo results from complex nonlinear radiation transfer processes.
PINTY Bernard
core   +1 more source

Hydraulic Activation of Stomata Induced by Hygroscopic Fertilizer Salts Alters Crop Carbon–Water Exchange: Field Evidence From Cereal Crops

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Hydraulic activation of stomata (HAS), driven by hygroscopic salt films on leaf surfaces, can create an additional pathway for water loss beyond conventional stomatal vapour diffusion, yet this process remains largely overlooked in studies of plant–atmosphere interactions.
Shuaishuai Deng   +10 more
wiley   +1 more source

Evaluation of the Surface Energy Balance System (SEBS) applied to ASTER imagery with flux-measurements at the SPARC 2004 site (Barrax, Spain) [PDF]

open access: yes, 2009
Accurate quantification of the amount and spatial variation of evapotranspiration is important in a wide range of disciplines. Remote sensing based surface energy balance models have been developed to estimate turbulent surface energy fluxes at different
A. Gieske   +29 more
core   +4 more sources

Methods for substituting onsite ambient ultraviolet radiation measurements for personal exposure studies

open access: yesPhotochemistry and Photobiology, EarlyView.
Three methods for substituting on‐site ambient ultraviolet radiation measurements for personal exposure measurements were investigated. Assuming spatial persistency of measurements from high‐grade instruments delivers lowest uncertainties up to distances of 82 km.
F. Lubitz   +7 more
wiley   +1 more source

ESTIMATING LAND SURFACE ALBEDO FROM SATELLITE DATA [PDF]

open access: yes, 2012
Land surface albedo, defined as the ratio of the surface reflected incoming and outgoing solar radiation, is one of the key geophysical variables controlling the surface radiation budget.
He, Tao
core   +1 more source

Simulation and Analysis of the Topographic Effects on Snow-Free Albedo over Rugged Terrain

open access: yesRemote Sensing, 2018
Topography complicates the modeling and retrieval of land surface albedo due to shadow effects and the redistribution of incident radiation. Neglecting topographic effects may lead to a significant bias when estimating land surface albedo over a single ...
Dalei Hao   +7 more
doaj   +1 more source

CrustCheck: a conceptual framework for interpreting biocrust trait–function relationships in drylands

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Biocrusts are increasingly recognized for their contribution to soil stability, hydrology, nutrient cycling, and energy balance in drylands, yet practical field methods for assessing functional roles are limited. Existing approaches typically rely on cover estimates, taxonomic identification, or laboratory analyses, providing ...
Nicky Parker   +5 more
wiley   +1 more source

Study of Urban Temperature Profiles on Various Land Covers in The Greater Jakarta Region, Indonesia

open access: yesJournal of Natural Resources and Environmental Management
The greater Jakarta is an intimate urban area that evolved into the largest integrated metropolis in Indonesia. It plays a significant role in social, economic, and political aspects. To be considered seriously, however, is the lack of planning capacity
Rahmad Fauzi   +2 more
doaj   +1 more source

Performance of GLASS and MODIS Satellite Albedo Products in Diagnosing Albedo Variations during Different Time Scales and Special Weather Conditions in the Tibetan Plateau

open access: yesRemote Sensing, 2020
Surface albedo is a crucial parameter in accurately and quantitatively estimating energy and water budget on the Tibetan Plateau (TP) and is also one of the largest radiative uncertainties in land surface modelling attempts.
Yingying An   +9 more
doaj   +1 more source

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