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dc.contributor.authorØdegaard, Linn-Kristine Glesnes
dc.contributor.authorTyssøy, Hilde Nesse
dc.contributor.authorSandanger, Marit Irene
dc.contributor.authorStadsnes, Johan
dc.contributor.authorSøraas, Finn
dc.PublishedJournal of Space Weather and Space Climate 2016, 6:A26eng
dc.description.abstractThe Medium Energy Proton and Electron Detector (MEPED) on board the National Oceanic and Atmospheric Administration Polar Orbiting Environmental Satellites (NOAA POES) is known to degrade with time. In recent years a lot of effort has been put into calibrating the degraded proton detectors. We make use of previous work and show that the degradation of the detectors can be attributed to the radiation dose of each individual instrument. However, the effectiveness of the radiation in degrading the detector is modulated when it is weighted by the mean ap index, increasing the degradation rate in periods with high geomagnetic activity, and decreasing it through periods of low activity. When taking ap and the radiation dose into account, we find that the degradation rate is independent of spacecraft and detector pointing direction. We have developed a model to estimate the correction factor for all the MEPED detectors as a function of accumulated corrected flux and the ap index. We apply the routine to NOAA POES spacecraft starting with NOAA-15, including the European satellites MetOp-02 and MetOp-01, and estimate correction factors.en_US
dc.publisherEDP Sciencesen_US
dc.relation.ispartof<a href="" target="_blank">Energetic particle precipitation into the middle atmosphere - optimization and applications of the NOAA POES MEPED data</a>en_US
dc.rightsAttribution CC BYeng
dc.subjectProton detector degradationeng
dc.subjectSpace Weathereng
dc.subjectNOAA POESeng
dc.titleSpace Weather impact on the degradation of NOAA POES MEPED proton detectorsen_US
dc.typePeer reviewed
dc.typeJournal article
dc.rights.holderCopyright 2016 The Author(s)en_US

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Attribution CC BY
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