Results 31 to 40 of about 52,709 (270)

Shortwave Spectroradiometer (SWS) Handbook [PDF]

, 2006
The Shortwave Spectroradiometer (SWS), measures the absolute visible and near infrared spectralradiance (units of watts per meter square per nanometer per steradian) of the zenith directly above the instrument. The SWS is a moderate resolution sensor comprised of two Zeiss spectrometers (MMS 1 NIR enhanced and NIR-PGS 2.2) for visible and near-infrared
Pilewskie, P, Pommier, J
openaire   +2 more sources

Investigation of Possibility of Measuring the Albedo of Earth's Surface in Visible and Near Infrared Bands in Conditions of Aerosol Pollution of Atmosphere Using Unmanned Aerial Vehicles

Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ
It is well-known that such processes as agricultural activities, urbanization processes, climatic changes leading to abnormal precipitation, etc. affect the magnitude of the Earth's albedo.
H. H. Asadov, A. J. Alieva, M. G. Ashrafov   +2 more
doaj   +1 more source

Exploring plant responses to abiotic stress by contrasting spectral signature changes

Frontiers in Plant Science, 2023
In this study, daily changes over a short period and diurnal progression of spectral reflectance at the leaf level were used to identify spring wheat genotypes (Triticum aestivum L.) susceptible to adverse conditions.
Félix Estrada, Félix Estrada, Jaume Flexas, Jose Luis Araus, Freddy Mora-Poblete, Jaime Gonzalez-Talice, Dalma Castillo, Ivan A. Matus, Ana Maria Méndez-Espinoza, Miguel Garriga, Carlos Araya-Riquelme, Cyril Douthe, Benjamin Castillo, Alejandro del Pozo, Gustavo A. Lobos   +14 more
doaj   +1 more source

Development of a Portable Spectroradiometer for Assessing the Light Environment in Crop Production

AgriEngineering
When growing plants in artificial conditions, it is important to control the lighting parameters, both natural and artificial. This study explored the feasibility of creating a low-cost portable spectroradiometer for assessing the light environment in ...
Alexey P. Dolgalev, Alexander A. Smirnov, Yuri A. Proshkin, Pavel V. Tikhonov, Dmitry A. Burynin, Alexander V. Sokolov   +5 more
doaj   +1 more source

Experimental Study on the Inverse Estimation of Horizontal Air Temperature Distribution in Built Spaces Using a Ground-Based Thermal Infrared Spectroradiometer

Remote Sensing, 2021
Air temperature is an important physical indicator for urban and architectural environments; however, it is difficult to obtain its distributive characteristics by field measurements owing to the limitations of current measuring instruments.
Ryuta Tsurumi, Takashi Asawa, Haruki Oshio   +2 more
doaj   +1 more source

Utilising the Potential of a Robust Three-Band Hyperspectral Vegetation Index for Monitoring Plant Moisture Content in a Summer Maize-Winter Wheat Crop Rotation Farming System

Remote Sensing
Water is vital for producing summer maize (SM) and winter wheat (WW); therefore, its proper management is crucial for sustainable farming. This study aimed to develop new tri-band spectral vegetation indices that enhance the accuracy of monitoring plant ...
James E. Kanneh, Caixia Li, Yanchuan Ma, Shenglin Li, Madjebi Collela BE, Zuji Wang, Daokuan Zhong, Zhiguo Han, Hao Li, Jinglei Wang   +9 more
doaj   +1 more source

Measuring Vegetation Phenology with Near-Surface Remote Sensing in a Temperate Deciduous Forest: Effects of Sensor Type and Deployment

Remote Sensing, 2019
Near-surface remote sensing is an effective tool for in situ monitoring of canopy phenology, but the uncertainties involved in sensor-types and their deployments are rarely explored. We comprehensively compared three types of sensor (i.e., digital camera,
Fan Liu, Xingchang Wang, Chuankuan Wang
doaj   +1 more source

Laboratory calibration for multidirectional spectroradiometers

Measurement Science and Technology, 2021
Abstract A method for the calibration of multidirectional spectroradiometers (MUDISs) capable of the simultaneous measurement of spectral radiance at different wavelengths is presented. The calibration of the spectroradiometer is challenging and crucial for high quality measurements of the angular dependence of the radiance.
Angelika Niedzwiedz, Jens Duffert, Mario Tobar-Foster, Esther Quadflieg, Gunther Seckmeyer   +4 more
openaire   +1 more source

Intercomparison of spectroradiometers and Sun photometers for the determination of the aerosol optical depth during the VELETA-2002 field campaign [PDF]

, 2006
[ 1] In July 2002 the VELETA-2002 field campaign was held in Sierra Nevada ( Granada) in the south of Spain. The main objectives of this field campaign were the study of the influence of elevation and atmospheric aerosols on measured UV radiation. In the
A. Alcántara, A. Labajo, A. M. Díaz, A. M. Silva, Alados-Arboledas, Alcántara, Anderson, Blanco-Muriel, Bodhaine, Cachorro, Cachorro, Campanelli, Cannon, Dubovik, Eck, et al., F. J. Olmo, Gueymard, H. Horvath, Holben, Holben, Iqbal, J. A. Martínez-Lozano, J. A. Rodrigues, J. Cañada, J. Lorente, J. P. Díaz, Kasten, Kaufman, Kuester, L. Alados-Arboledas, Labajo, M. P. Utrillas, M. Pujadas, M. Sorribas, Martínez-Lozano, Martínez-Lozano, Martínez-Lozano, McArthur, Michalsky, Mitchell, Morys, Nann, Pedrós, Pietras, Riordan, Russell, Schimid, Schmid, Schmid, Shaw, Slusser, T. Elías, Utrillas, V. Cachorro, V. Estellés, World Meteorological Organization (WMO), X. de Cabo, Y. García   +58 more
core   +2 more sources

Hybrid Liquid Metal Cathode Enables High‐Performance Intrinsically Stretchable OLEDs

Advanced Materials, EarlyView.
We report a hybrid liquid metal (Hyb‐LM) cathode engineered via selective rupture of liquid metal particles (LMPs), forming a bilayer architecture with a surface liquid metal (LM) layer and underlying LMP layer, which has benefits of both LM and LMPs.
Wonbeom Lee, Wei Liu, Cheng Zhang, Seungmin Shin, Jaejun Lee, Jaedong Jang, Sanggil Park, Seungbum Hong, Sihong Wang, Himchan Cho   +9 more
wiley   +1 more source