Detection and analysis of anomalies in the brightness temperature difference field using MSG rapid scan data

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020699%3A_____%2F13%3A%230000741" target="_blank" >RIV/00020699:_____/13:#0000741 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378289:_____/13:00483222

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.atmosres.2012.05.015" target="_blank" >http://dx.doi.org/10.1016/j.atmosres.2012.05.015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.atmosres.2012.05.015" target="_blank" >10.1016/j.atmosres.2012.05.015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Detection and analysis of anomalies in the brightness temperature difference field using MSG rapid scan data

Popis výsledku v původním jazyce

The paper addresses anomalies in brightness temperature difference (BTD) between WV and IR window bands using MSG rapid scan data. One of our aims is to eliminate subjectivity in their detection. The important finding is that it is not possible to studythe anomalous behavior when taking into account all pixels related to a storm cloud top. It is necessary to identify and study anomalous regions separately, otherwise their behavior is masked by the majority of the other pixels. We propose a detection algorithm based on the thresholding method with the threshold depending on the dispersion of the BTD data. Outputs of the algorithm and first analyses for one chosen case are shown. According to the first results, the typical relationship between BT and BTD (most of the pixels with growing BTD exhibit a decrease in BT) is retained during the time evolution of the storm also for anomalous pixels, even though their BTDs reach higher values than for non-anomalous pixels at a similar BT level.

Název v anglickém jazyce

Detection and analysis of anomalies in the brightness temperature difference field using MSG rapid scan data

Popis výsledku anglicky

The paper addresses anomalies in brightness temperature difference (BTD) between WV and IR window bands using MSG rapid scan data. One of our aims is to eliminate subjectivity in their detection. The important finding is that it is not possible to studythe anomalous behavior when taking into account all pixels related to a storm cloud top. It is necessary to identify and study anomalous regions separately, otherwise their behavior is masked by the majority of the other pixels. We propose a detection algorithm based on the thresholding method with the threshold depending on the dispersion of the BTD data. Outputs of the algorithm and first analyses for one chosen case are shown. According to the first results, the typical relationship between BT and BTD (most of the pixels with growing BTD exhibit a decrease in BT) is retained during the time evolution of the storm also for anomalous pixels, even though their BTDs reach higher values than for non-anomalous pixels at a similar BT level.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DG - Vědy o atmosféře, meteorologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F07%2F0905" target="_blank" >GA205/07/0905: Využití distančních měření při modelování a monitorování silných konvektivních bouří</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Atmospheric Research

ISSN

0169-8095

e-ISSN

—

Svazek periodika

123

Číslo periodika v rámci svazku

April 1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

354-359

Kód UT WoS článku

000316580600027

EID výsledku v databázi Scopus

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