Matches in SemOpenAlex for { <https://semopenalex.org/work/W2012143914> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2012143914 endingPage "3038" @default.
- W2012143914 startingPage "3035" @default.
- W2012143914 abstract "The Ap index is a daily average of the range of magnetic disturbance in each three-hour UT interval. It is the only global magnetic index routinely forecast. Predictions of Ap are subjective estimates made on the basis of past behavior of Ap and events at the Sun. The predicted variance in present forecasts is only 30%. Here we develop a set of linear filters for Ap forecasting. We show that auto regressive filters with constant coefficients do as well as human forecasters. Filters with time varying coefficients predict 37% of the variance. If we assume Ap is driven by solar wind velocity through an auto regressive moving average we predict 47% of the variance. However, this filter requires today's average solar wind velocity to predict today's Ap. Only with remote sensing of the solar wind a day in advance would it be possible to implement this model. We apply our filters to data for January 1997 determining whether effects of the January 6–11 magnetic cloud can be predicted. The filters do not predict CME related activity, but they do predict activity later in January obtaining a monthly average prediction efficiency of 59% that should be compared SEC results of 40%." @default.
- W2012143914 created "2016-06-24" @default.
- W2012143914 creator A5009445822 @default.
- W2012143914 date "1998-08-01" @default.
- W2012143914 modified "2023-09-27" @default.
- W2012143914 title "Determination of linear filters for predicting Ap during Jan. 1997" @default.
- W2012143914 cites W2043155625 @default.
- W2012143914 cites W2054406661 @default.
- W2012143914 cites W2076815683 @default.
- W2012143914 cites W2119944035 @default.
- W2012143914 doi "https://doi.org/10.1029/98gl00841" @default.
- W2012143914 hasPublicationYear "1998" @default.
- W2012143914 type Work @default.
- W2012143914 sameAs 2012143914 @default.
- W2012143914 citedByCount "5" @default.
- W2012143914 countsByYear W20121439142013 @default.
- W2012143914 crossrefType "journal-article" @default.
- W2012143914 hasAuthorship W2012143914A5009445822 @default.
- W2012143914 hasBestOaLocation W20121439141 @default.
- W2012143914 hasConcept C105795698 @default.
- W2012143914 hasConcept C106131492 @default.
- W2012143914 hasConcept C114614502 @default.
- W2012143914 hasConcept C121332964 @default.
- W2012143914 hasConcept C121955636 @default.
- W2012143914 hasConcept C136764020 @default.
- W2012143914 hasConcept C144133560 @default.
- W2012143914 hasConcept C153294291 @default.
- W2012143914 hasConcept C159985019 @default.
- W2012143914 hasConcept C161067210 @default.
- W2012143914 hasConcept C175706884 @default.
- W2012143914 hasConcept C192562407 @default.
- W2012143914 hasConcept C196083921 @default.
- W2012143914 hasConcept C204323151 @default.
- W2012143914 hasConcept C2777382242 @default.
- W2012143914 hasConcept C2778067643 @default.
- W2012143914 hasConcept C31972630 @default.
- W2012143914 hasConcept C33923547 @default.
- W2012143914 hasConcept C39432304 @default.
- W2012143914 hasConcept C41008148 @default.
- W2012143914 hasConceptScore W2012143914C105795698 @default.
- W2012143914 hasConceptScore W2012143914C106131492 @default.
- W2012143914 hasConceptScore W2012143914C114614502 @default.
- W2012143914 hasConceptScore W2012143914C121332964 @default.
- W2012143914 hasConceptScore W2012143914C121955636 @default.
- W2012143914 hasConceptScore W2012143914C136764020 @default.
- W2012143914 hasConceptScore W2012143914C144133560 @default.
- W2012143914 hasConceptScore W2012143914C153294291 @default.
- W2012143914 hasConceptScore W2012143914C159985019 @default.
- W2012143914 hasConceptScore W2012143914C161067210 @default.
- W2012143914 hasConceptScore W2012143914C175706884 @default.
- W2012143914 hasConceptScore W2012143914C192562407 @default.
- W2012143914 hasConceptScore W2012143914C196083921 @default.
- W2012143914 hasConceptScore W2012143914C204323151 @default.
- W2012143914 hasConceptScore W2012143914C2777382242 @default.
- W2012143914 hasConceptScore W2012143914C2778067643 @default.
- W2012143914 hasConceptScore W2012143914C31972630 @default.
- W2012143914 hasConceptScore W2012143914C33923547 @default.
- W2012143914 hasConceptScore W2012143914C39432304 @default.
- W2012143914 hasConceptScore W2012143914C41008148 @default.
- W2012143914 hasIssue "15" @default.
- W2012143914 hasLocation W20121439141 @default.
- W2012143914 hasOpenAccess W2012143914 @default.
- W2012143914 hasPrimaryLocation W20121439141 @default.
- W2012143914 hasRelatedWork W1556840941 @default.
- W2012143914 hasRelatedWork W1962385489 @default.
- W2012143914 hasRelatedWork W2030746528 @default.
- W2012143914 hasRelatedWork W2095472540 @default.
- W2012143914 hasRelatedWork W2159964792 @default.
- W2012143914 hasRelatedWork W2168667055 @default.
- W2012143914 hasRelatedWork W2392510092 @default.
- W2012143914 hasRelatedWork W2899084033 @default.
- W2012143914 hasRelatedWork W3094248018 @default.
- W2012143914 hasRelatedWork W4224223762 @default.
- W2012143914 hasVolume "25" @default.
- W2012143914 isParatext "false" @default.
- W2012143914 isRetracted "false" @default.
- W2012143914 magId "2012143914" @default.
- W2012143914 workType "article" @default.