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Solar uv temporal variations during solar cycle 22 and the twentieth century
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Donnelly, Richard F. |
| Copyright Year | 1990 |
| Description | Solar ultraviolet measurements of the Mg II core-to-wing ratio from the NOAA9 satellite show a fast rise for solar cycle 22 from the minimum in September 1986. The high values in late 1989 are comparable to the maximum values for cycle 21. Estimates of earlier solar UV variations are made back to 1947 using a combination of the 10 cm solar radio flux (F10) and the sunspot blocking function. The latter is interpreted to partially remove the gyroresonance component from F10, which is not present in the UV flux. |
| File Size | 378580 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910003188 |
| Archival Resource Key | ark:/13960/t12p01g5p |
| Language | English |
| Publisher Date | 1990-08-01 |
| Access Restriction | Open |
| Subject Keyword | Solar Physics Temporal Distribution Solar Rotation Ultraviolet Radiation Solar Activity Effects Variations Blocking Stratosphere Irradiance Solar Radiation Solar Cycles Sunspots Estimates Ntrs Nasa Technical Reports ServerĀ (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |