Results 11 to 20 of about 8,944 (306)

Characteristics of solar-irradiance spectra from measurements, modeling, and theoretical approach

open access: yesLight: Science & Applications, 2022
An accurate solar-irradiance spectrum is needed as an input to any planetary atmosphere or climate model. Depending on the spectral characteristics of the chosen model, uncertainties in the irradiance may introduce significant differences in atmospheric ...
Gerard Thuillier   +4 more
doaj   +1 more source

Detecting undocumented trends in solar irradiance observations

open access: yesJournal of Space Weather and Space Climate, 2022
Quantifying the long-term stability of solar irradiance observations is crucial for determining how the Sun varies in time and detecting decadal climate change signals.
Dudok de Wit Thierry
doaj   +1 more source

The Flare Irradiance Spectral Model‐Version 2 (FISM2)

open access: yesSpace Weather, 2020
The Flare Irradiance Spectral Model (FISM) is an important tool for estimating solar variability for a myriad of space weather research studies and applications, and FISM Version 2 (FISM2) recently was released.
P. C. Chamberlin   +9 more
doaj   +1 more source

Correlation of spectral solar irradiance with solar activity as measured by VIRGO [PDF]

open access: yesAstronomy & Astrophysics, 2013
Context. The variability of Solar Spectral Irradiance over the rotational period and its trend over the solar activity cycle are important for understanding the Sun-Earth connection as well as for observational constraints for solar models. Recently the SIM experiment on SORCE has published an unexpected negative correlation with Total Solar Irradiance
Wehrli Ch   +2 more
openaire   +3 more sources

Solar irradiance in clear atmosphere: study of parameterisations of change with altitude [PDF]

open access: yesAdvances in Science and Research, 2011
Parameterisation of changes of the solar irradiance at ground level with a specific variable (e.g. solar zenithal angle, aerosol optical depth, altitude, etc.) is often used in operational processes because it saves computational time.
A. Oumbe   +6 more
doaj   +1 more source

Increasing the Resolution and Spectral Range of Measured Direct Irradiance Spectra for PV Applications

open access: yesRemote Sensing, 2023
The spectral distribution of the solar irradiance incident on photovoltaic (PV) modules is a key variable controlling their power production. It is required to properly simulate the production and performance of PV plants based on technologies with ...
Gabriel López   +8 more
doaj   +1 more source

Reproducing Solar Spectral Irradiance by LEDs [PDF]

open access: yes, 2020
Abstract The development of light-emitting diodes (LEDs) of different emission spectra is revolutionizing lighting technology and opening up completely new applications and research areas. The spectral irradiance of the sun reaching the Earth's surface is very complex due to radiative transfer processes within the atmosphere and ranges from the
Anton Kopatsch   +7 more
openaire   +1 more source

Incident spectral solar irradiance measured above sea ice at ROV station ALERT2018_10_1

open access: yes, 2021
Measurements of solar radiation over sea ice have been performed on First-Year-Ice (FYI) during the ALERT2018 campaign (Multidisciplinary Arctic Program (MAP) - Last Ice) off Alert, Nunavut, Canada in the Lincoln Sea on 10 May 2018.
Nicolaus, Marcel   +2 more
core   +1 more source

Solar Spectral Irradiance Variability in November/December 2012

open access: yes, 2022
S.4433-4452Onboard the International Space Station (ISS), two instruments are observing the solar spectral irradiance (SSI) at wavelengths from 16 to 2900 nm.
Cessateur, G.   +15 more
core   +1 more source

Sunrise to sunset optimization of thin film antireflective coatings for encapsulated, planar silicon solar cells [PDF]

open access: yes, 2009
We present an approach for the optimization of thin film antireflective coatings for encapsulated planar silicon solar cells in which the variations in the incident spectra and angle of incidence (AOI) over a typical day are fully considered.
Boden, S.A.   +3 more
core   +1 more source

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