About: Late stages of initial errors growth in weather prediction with use of low-dimensional atmospheric model

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.mff.cuni.cz/veda/konference/wds/proc/proc-contents.php?year=2012
Description	The growth of small errors in weather prediction is exponential. As an error becomes larger, the growth rate should diminish. Finally, all systematic growth should stop, and the magnitude of the error should oscillate about a value equal to the magnitude of the distance between two states chosen randomly. The aim of this paper is study of error growth in low-dimensional atmospheric model after the initial exponential divergence died away. For this purpose we test several hypotheses (cubic, quartic, logarithmic) by ensemble prediction method. Also quadratic hypothesis that was introduced by Lorenz in 1969 is compared with the ensemble prediction method. The study shows that a small error growth is best modeled by quadratic hypothesis. After the initial error exceed a half of average value of variables than logarithmic approximation is better. The growth of small errors in weather prediction is exponential. As an error becomes larger, the growth rate should diminish. Finally, all systematic growth should stop, and the magnitude of the error should oscillate about a value equal to the magnitude of the distance between two states chosen randomly. The aim of this paper is study of error growth in low-dimensional atmospheric model after the initial exponential divergence died away. For this purpose we test several hypotheses (cubic, quartic, logarithmic) by ensemble prediction method. Also quadratic hypothesis that was introduced by Lorenz in 1969 is compared with the ensemble prediction method. The study shows that a small error growth is best modeled by quadratic hypothesis. After the initial error exceed a half of average value of variables than logarithmic approximation is better. (en)
Title	Late stages of initial errors growth in weather prediction with use of low-dimensional atmospheric model Late stages of initial errors growth in weather prediction with use of low-dimensional atmospheric model (en)
skos:prefLabel	Late stages of initial errors growth in weather prediction with use of low-dimensional atmospheric model Late stages of initial errors growth in weather prediction with use of low-dimensional atmospheric model (en)
skos:notation	RIV/00216208:11320/12:10132629!RIV13-MSM-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Raidl, Aleš Bednář, Hynek
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	146522
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/12:10132629
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	model; atmospheric; low-dimensional; use; with; prediction; weather; growth; errors; initial; stages; Late (en)
http://linked.open.../riv/klicoveSlovo	use weather errors growth model prediction with initial low-dimensional atmospheric stages Late
http://linked.open...ontrolniKodProRIV	[7E02FA9DFBC1]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	WDS'12 Proceedings of Contributed Papers, Part III
http://linked.open...in/vavai/riv/obor	DG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Bednář, Hynek Raidl, Aleš
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2012-05-29 (xsd:date)
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Matfyzpress
https://schema.org/isbn	978-80-7378-226-9
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Late stages of initial errors growth in weather prediction with use of low-dimensional atmospheric model

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