000003557 001__ 3557
000003557 005__ 20180919103818.0
000003557 037__ $$aCTALK-2018-0060
000003557 100__ $$aWauters, Laurence
000003557 245__ $$aTracking of predominant periodicities evolution for PROBA2/LYRA and other long-term solar time series
000003557 260__ $$c2018
000003557 269__ $$c2018-08-28
000003557 520__ $$aThe periodograms of the PROBA2/LYRA data show predominant periodicities comparable to the ones observed by other solar time series for the same time range. These periodicities have been found to slightly vary over time. Tracking their evolution on a long-term basis aims at identifying which periodicities are related to each other and at determining which physical processes are at their origin. A study has been made on sunspot area, for which several solar cycles of data exist and for which the periodicities are close to the ones found in LYRA (for the same time range). We used framed Lomb-Scargle periodograms to extract the periodicities and check their evolution. Several significant periodicities behave similarly and seem to be harmonically related. 
000003557 536__ $$a3ESA-PROBA2SOC/$$c3ESA-PROBA2SOC/$$f3ESA-PROBA2SOC
000003557 594__ $$aNO
000003557 700__ $$aDominique, Marie
000003557 700__ $$aDammasch, Ingolf
000003557 700__ $$aMeftah, Mustapha
000003557 773__ $$tINSPIRE workshop, Paris
000003557 8560_ $$flaurence.wauters@observatoire.be
000003557 85642 $$ahttps://events.oma.be/indico/event/51/overview
000003557 906__ $$aContributed
000003557 980__ $$aCTALKCONT