Results 1 to 10 of about 5,416 (116)

Spectral aerosol optical depth from SI-traceable spectral solar irradiance measurements [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
Spectroradiometric measurements of direct solar irradiance traceable to the SI were performed by three spectroradiometer systems during a 3-week campaign in September 2022 at the Izaña Atmospheric Observatory (IZO) located on the island of Tenerife ...
J. Gröbner   +14 more
doaj   +1 more source

Exploring possibilities for solar irradiance prediction from solar photosphere images using recurrent neural networks

open access: yesJournal of Space Weather and Space Climate, 2022
Studies of the Sun and the Earth’s atmosphere and climate consider solar variability as an important driver, and its constant monitoring is essential for climate models. Solar total and spectral irradiance are among the main relevant parameters. Physical
Muralikrishna Amita   +2 more
doaj   +1 more source

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

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

Solar irradiance measurements. [PDF]

open access: yesLiving Rev Sol Phys
The Sun provides nearly all the energy powering the Earth’s climate system, far exceeding all other energy sources combined. The incident radiant energy, the “total solar irradiance,” has been measured by an uninterrupted series of temporally overlapping
Kopp G.
europepmc   +2 more sources

Solar spectral irradiance variability in cycle 24: observations and models

open access: yesJournal of Space Weather and Space Climate, 2016
Utilizing the excellent stability of the Ozone Monitoring Instrument (OMI), we characterize both short-term (solar rotation) and long-term (solar cycle) changes of the solar spectral irradiance (SSI) between 265 and 500 nm during the ongoing cycle 24. We
Marchenko Sergey V.   +2 more
doaj   +1 more source

Influence of the Solar Spectra Models on PACO Atmospheric Correction

open access: yesRemote Sensing, 2022
The solar irradiance is the source of energy used by passive optical remote sensing to measure the ground reflectance and, from there, derive the ground properties.
Raquel De Los Reyes   +6 more
doaj   +1 more source

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