Results 31 to 40 of about 8,944 (306)
Solar rotational modulations of spectral irradiance and correlations with the variability of total solar irradiance [PDF]
Journal of Space Weather and Space Climate, 2016 Aims: We characterize the solar rotational modulations of spectral solar irradiance (SSI) and compare them with the corresponding changes of total solar irradiance (TSI). Solar rotational modulations of TSI and SSI at wavelengths between 120 and 1600 nm are identified over one hundred Carrington rotational cycles during 2003–2013.
Lee Jae N. +2 more
openaire +2 more sources
New spectral functions of the near-ground albedo derived from aircraft diffraction spectrometer observations [PDF]
, 2014 The airborne spectral observations of the upward and downward irradiances are revisited to investigate the dependence of the near-ground albedo as a function of wavelength in the entire solar spectrum for different surfaces (sand, water, snow) and under ...
C. A. Varotsos +9 more
core +1 more source
Remote Sensing, 2020 The current implementation for continuous, long-term solar spectral irradiance (SSI) monitoring is the Total and Spectral Solar Irradiance Sensor (TSIS-1) Spectral Irradiance Monitor (SIM) that began operations from the International Space Station (ISS ...
Erik Richard +7 more
doaj +1 more source
Photovoltaic Spectral Responsivity and Efficiency under Different Aerosol Conditions
Energies, 2023 While solar power applications are growing rapidly worldwide, information about solar energy availability, its characteristics and the factors that affect it are essential.
Dimitra Kouklaki +5 more
doaj +1 more source
Determination of sensor depth from downwelling irradiance measurements
, 2012 The wave focusing effect causes measurements of under water downwelling irradiances Ed to be extremely variable in intensity and spectral shape. A new analytical model for Ed has been developed recently, which can deal with the induced variability by ...
Grötsch, Philipp +3 more
core +1 more source
Journal of Space Weather and Space ClimateThe first implementation of NASA’s Total and Spectral Solar Irradiance Sensor (TSIS-1) launched on December 15th, 2017, and was integrated into the International Space Station (ISS) to measure both the total solar irradiance (TSI) and the solar spectral ...
Richard Erik +10 more
doaj +1 more source
Overview of the NASA Solar Irradiance Science Team (SIST) Program Special Section
Earth and Space Science, 2019 Solar irradiance represents the dominant energy source heating the Earth's atmosphere and climate. Both total solar irradiance and spectral solar irradiance vary over the 11‐year solar cycle.
Matthew T. DeLand +2 more
doaj +1 more source
Total solar irradiance using a traceable solar spectroradiometer [PDF]
Atmospheric Measurement TechniquesAccurate, precise and traceable measurements of total and spectral solar irradiance measurements are fundamental for solar energy applications, climate studies, and satellite validation.
D. Jaine, J. Gröbner, W. Finsterle
doaj +1 more source
Reconstruction of the solar EUV irradiance from 1996 to 2010 based on SOHO/EIT images
Journal of Space Weather and Space Climate, 2014 The solar Extreme UltraViolet (EUV) spectrum has important effects on the Earth’s upper atmosphere. For a detailed investigation of these effects it is important to have a consistent data series of the EUV spectral irradiance available.
Haberreiter Margit +5 more
doaj +1 more source
Reconstruction of the solar spectral UV irradiance for nowcasting of the middle atmosphere state on the basis of LYRA measurements [PDF]
Atmospheric Chemistry and Physics, 2008 The LYRA instrument onboard ESA PROBA2 satellite will provide 6-hourly solar irradiance at the Lyman-alpha (121.6 nm) and the Herzberg continuum (~200–220 nm wavelength range). Because the nowcasting of the neutral and ionic state of the middle
T. Egorova +3 more
doaj