Results 21 to 30 of about 7,013 (293)

Quantifying the Reflectance Anisotropy Effect on Albedo Retrieval from Remotely Sensed Observations Using Archetypal BRDFs

Remote Sensing, 2018
The reflectance anisotropy effect on albedo retrieval was evaluated using the Moderate Resolution Imaging Spectroradiometer (MODIS) bidirectional reflectance distribution functions (BRDFs) product, and archetypal BRDFs.
Hu Zhang, Ziti Jiao, Lei Chen, Yadong Dong, Xiaoning Zhang, Yi Lian, Da Qian, Tiejun Cui   +7 more
doaj   +1 more source

Cortex Thickness Is Key for the Colors of Iridescent Starling Feather Barbules With a Single, Organized Melanosome Layer

Frontiers in Ecology and Evolution, 2021
The iridescent plumage of many birds is structurally colored due to an orderly arrangement of melanosomes in their feather barbules. Here, we investigated the blue- to purple-colored feathers of the European starling (Sturnus vulgaris) and the blue and ...
Pascal Freyer, Bodo D. Wilts, Doekele G. Stavenga   +2 more
doaj   +1 more source

Automated Directional Measurement System for the Acquisition of Thermal Radiative Measurements of Vegetative Canopies

, 2009
The potential for directional optical and thermal imagery is very large. Field measurements have been performed with a goniometer on which thermal instruments were attached.
Christiaan van der Tol, Timmermans, J., Gieske, A., Su, Zhongbo, Wout Verhoef, Su, Z., Zhongbo Su, Joris Timmermans, Tol, C., van der, Verhoef, W., A.S.M. Ambro Gieske, van der Tol, C., Gieske, A.S.M., Su, Zhongbo; id_orcid   +13 more
core   +1 more source

The calculation of the directional reflectance of a vegetative canopy [PDF]

, 1971
The non-Lambertian directional reflectance of a multilayer vegetative canopy is derived. Cause of the reflectance of the canopy is made traceable to the properties of the biological elements of the canopy.
Suits, Gwynn H.
core   +1 more source

Comparaison entre les caractéristiques de surface de la neige dans les Alpes, les données du satellite Landsat TM et un modèle de métamorphisme du manteau neigeux

Cybergeo, 2000
Two experiments were performed in the French Alps to study the reflectance of snow in the solar spectrum. This information is useful for climatological studies and avalanche forecasting. The Landsat TM data are compared to the results of a theoretical bi-
Jean-Pierre Dedieu, M. Fily, Yves Durand, C. Sergent   +3 more
doaj   +1 more source

BRDF Correction in Landsat Directional Reflectance Data by Combining Optimal BRDF Archetype With Spectral Characteristics

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The Landsat optical images have provided a unique long-term record of the terrestrial surface and have always been an important data source for earth observation.
Aojie Shen, Jie Shao, Xin Qi, Zhongzheng Zhu, Yujie Dai, Qi Zeng   +5 more
doaj   +1 more source

Thermal Infrared Spectrometer for Earth Science Remote Sensing Applications—Instrument Modifications and Measurement Procedures

Sensors, 2011
In this article we describe a new instrumental setup at the University of Twente Faculty ITC with an optimized processing chain to measure absolute directional-hemispherical reflectance values of typical earth science samples in the 2.5 to 16 µm range. A
Freek van der Meer, Boudewijn de Smeth, Frank van Ruitenbeek, Henk Wilbrink, Harald van der Werff, Simon Hook, Mark van der Meijde, Wim Bakker, Christoph Hecker   +8 more
doaj   +1 more source

Retrieval of canopy component temperatures through Bayesian inversion of directional thermal measurements

, 2009
Evapotranspiration is usually estimated in remote sensing from single temperature value representing both soil and vegetation. This surface temperature is an aggregate over multiple canopy components.
Tol, C., van der, Timmermans, J., Verhoef, W., Su, Z.   +3 more
core   +1 more source

Reflectance of the Women Skin from the Ultraviolet to the Far-Infrared Spectrum Across Different Body Regions at Incidence Angles of 20° and 60°

Applied Sciences
Background: Directional hemispherical reflectance (DHR) is a precise method for evaluating skin reflectance and is widely used in dermatological, photobiological, and cosmetic or pharmaceutical research.
Magdalena Hartman-Petrycka, Joanna Witkoś, Patrycja Zagórna, Sławomir Wilczyński   +3 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source