[CITATION][C] Marine species richness
RM May - Nature, 1993 - nature.com
Nature, 1993•nature.com
SIR-The debate as to whether solar variability is a significant cause of the rise in global
mean surface air temperature1-4 has been based on data analysis. Although theoretical
mechanisms have been postulated, they are difficult to test because of the lack of historical
data on the variability of the solar output. However, there is a terrestrial parameter which is
highly sensitive to variations in the solar ultraviolet radiation-the atmospheric semi-diurnal
tide5. Unlike the ocean tides, the atmospheric tides are predominantly forced by solar …
mean surface air temperature1-4 has been based on data analysis. Although theoretical
mechanisms have been postulated, they are difficult to test because of the lack of historical
data on the variability of the solar output. However, there is a terrestrial parameter which is
highly sensitive to variations in the solar ultraviolet radiation-the atmospheric semi-diurnal
tide5. Unlike the ocean tides, the atmospheric tides are predominantly forced by solar …
SIR-The debate as to whether solar variability is a significant cause of the rise in global mean surface air temperature1-4 has been based on data analysis. Although theoretical mechanisms have been postulated, they are difficult to test because of the lack of historical data on the variability of the solar output.
However, there is a terrestrial parameter which is highly sensitive to variations in the solar ultraviolet radiation-the atmospheric semi-diurnal tide5. Unlike the ocean tides, the atmospheric tides are predominantly forced by solar heating6. In particular, the semi-diurnal (12-hour) tide is driven by absorption of ultraviolet radiation in the stratosphere and thus is sensitive to wavelengths where solar output varies significantly7.
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