First Year Of Science Results From Solar Dynamics Observatory (SDO) Extreme Ultraviolet Variability Experiment (EVE) (original) (raw)

Abstract

The Extreme ultraviolet Variability Experiment (EVE) onboard Solar Dynamic Observatory (SDO), part of NASA's Living With the Star (LWS) program launched on 11 February 2010. Normal science operations began 1 May 2010 and have continued uninterrupted since then. The EVE instruments measure the solar extreme ultraviolet (EUV) irradiance from 0.1 to 105 nm with unprecedented spectral resolution (0.1 nm), temporal cadence (10 sec minimum), and accuracy (20% or better). Here, we present a review of the first year of EVE observations and initial science results presented at the LWS/SDO-1 Workshop held 1-5 May 2011 in Squaw Valley, CA. Much of the initial science from EVE has focused on the changes in the EUV irradiance due to solar flares. In the first eleven months of science operations, EVE observed over 350 C-class flares, 43 M-class flares, and 2 X-class flares. The location of a solar flare is important for understanding the EUV irradiance. ESP data is available in near-real time...

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