SORCE was launched during a solar maximum period; as the mission progressed, the sun moved into a solar minimum period that was considerably longer than predicted. The next cycle did finally get started, and solar activity is now nearing its apex for this current cycle though current observations suggest that the maximum may have a double peak.
Basically, SORCE data has provided scientists a unique understanding of how the sun varies both slowly and rapidly, affecting Earth's weather and climate systems and ultimately all the life on Earth that depends on the sun's flow of energy. TSI is a critical, fundamental variable for the Earth's climate system, because even small variations in the amount of energy received by the Earth globe from the sun can affect Earth's climate and weather systems.
TSI is slightly lower during solar minimum periods and higher during solar maximum periods, with higher variability evident during solar maximum periods. Solar flares and sunspots, which occur more frequently during solar maxima, cause measurable variability in TSI. That minimum TSI value is known to 0. That value is 0.
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TSI is a fundamental variable in the calculation of the sun's energy input to Earth's climate system and Earth's overall energy budget. Extremely accurate measurements of TSI also indicate how much the amount of solar energy reaching the Earth is varying. Another major achievement of SORCE is that the satellite acquired the first continuous measurements of solar spectral irradiance SSI in the to nanometer spectral wavelength range.
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The visible spectral range the range that the human eye is sensitive to is from about nm violet to nm red. As the ability to model Earth's climate and atmosphere has advanced, so too, has the need for improved specification of solar irradiance inputs.
Solar Radiation and Climate Experiment - Wikipedia
Most, if not all, state-of-the-art models of Earth's climate and atmosphere, such as those used for the Intergovernmental Panel on Climate Change's Fifth Assessment and the Ozone Assessment, now require the SSI—not just the total spectrally integrated quantity. Analysis of SORCE spectral irradiance observations and development and validation of models of spectral irradiance variability for use in global change studies is a key science objective of SORCE.
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April 1, Between and , the Solar Irradiance Monitor blue line measured a decrease in ultraviolet radiation less than nanometers that was a factor of four to six larger than expected black line. In the visible part of the spectrum to nanometers , SIM showed a slight increase in comparison to what was expected. Note: different scales are used for values at wavelengths less and more than nanometers see left and right axes respectively. Credit: NASA. More information: Phys. As the ability to model Earth's climate and atmosphere has advanced, so too, has the need for improved specification of solar irradiance inputs.
Most, if not all, state-of-the-art models of Earth's climate and atmosphere, such as those used for the Intergovernmental Panel on Climate Change's Fifth Assessment and the Ozone Assessment, now require the SSI -- not just the total spectrally integrated quantity. Analysis of SORCE spectral irradiance observations and development and validation of models of spectral irradiance variability for use in global change studies is a key science objective of SORCE.
Materials provided by NASA. Note: Content may be edited for style and length. Science News. ScienceDaily, 2 April Retrieved September 21, from www. This information -- based on more than 50 daily records Understanding the shape and size of the belts, which can Below are relevant articles that may interest you. ScienceDaily shares links with scholarly publications in the TrendMD network and earns revenue from third-party advertisers, where indicated. Living Well.