Accuracy of monthly and seasonal forecasts generated for the territory of Lithuania using NOAA’s Climate Forecast System version 2

The objective of this paper is to assess the accuracy of air temperature and precipitation monthly and seasonal forecasts generated for the territory of Lithuania using the NOAA’s Climate Forecast System, version 2 (CFSv2) and to determine the atmospheric circulation conditions present at the time o...

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Autores principales: Arūnas Bukantis, Gytis Valaika
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Lenguaje:EN
Publicado: Vilnius Gediminas Technical University 2021
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Acceso en línea:https://doaj.org/article/82999680a1b9448998a4fa1a21dfe3e4
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spelling oai:doaj.org-article:82999680a1b9448998a4fa1a21dfe3e42021-11-11T14:02:43ZAccuracy of monthly and seasonal forecasts generated for the territory of Lithuania using NOAA’s Climate Forecast System version 21648-68971822-419910.3846/jeelm.2021.15580https://doaj.org/article/82999680a1b9448998a4fa1a21dfe3e42021-10-01T00:00:00Zhttps://journals.vgtu.lt/index.php/JEELM/article/view/15580https://doaj.org/toc/1648-6897https://doaj.org/toc/1822-4199The objective of this paper is to assess the accuracy of air temperature and precipitation monthly and seasonal forecasts generated for the territory of Lithuania using the NOAA’s Climate Forecast System, version 2 (CFSv2) and to determine the atmospheric circulation conditions present at the time of initialization of the respective forecasts. The air temperature and precipitation data are obtained from three-month mean and monthly mean spatial anomalies during the period between 2012 and 2019. The accuracy of forecasts was performed in accordance with three criteria: range, state and the absolute error of the respective predicted anomaly. The study has shown that forecasts initialized 0–20 days in advance of the target month or season tend to be the most skilful. The accuracy of CFSv2 forecasts may be significantly impacted by the initial atmospheric circulation conditions present during the generation thereof. The study determined which phases of Arctic Oscillation (AO) and North Atlantic Oscillation (NAO) and which circulation types according to the Hess-Brezowsky classification are favourable/unfavourable for the monthly and seasonal forecasting of air temperature and precipitation.Arūnas BukantisGytis ValaikaVilnius Gediminas Technical Universityarticleair temperatureatmospheric circulationclimate forecast systemenvironment monitoringprecipitations anomaliesaccuracy of forecastsEnvironmental engineeringTA170-171ENJournal of Environmental Engineering and Landscape Management, Vol 29, Iss 3, Pp 337-345 (2021)
institution DOAJ
collection DOAJ
language EN
topic air temperature
atmospheric circulation
climate forecast system
environment monitoring
precipitations anomalies
accuracy of forecasts
Environmental engineering
TA170-171
spellingShingle air temperature
atmospheric circulation
climate forecast system
environment monitoring
precipitations anomalies
accuracy of forecasts
Environmental engineering
TA170-171
Arūnas Bukantis
Gytis Valaika
Accuracy of monthly and seasonal forecasts generated for the territory of Lithuania using NOAA’s Climate Forecast System version 2
description The objective of this paper is to assess the accuracy of air temperature and precipitation monthly and seasonal forecasts generated for the territory of Lithuania using the NOAA’s Climate Forecast System, version 2 (CFSv2) and to determine the atmospheric circulation conditions present at the time of initialization of the respective forecasts. The air temperature and precipitation data are obtained from three-month mean and monthly mean spatial anomalies during the period between 2012 and 2019. The accuracy of forecasts was performed in accordance with three criteria: range, state and the absolute error of the respective predicted anomaly. The study has shown that forecasts initialized 0–20 days in advance of the target month or season tend to be the most skilful. The accuracy of CFSv2 forecasts may be significantly impacted by the initial atmospheric circulation conditions present during the generation thereof. The study determined which phases of Arctic Oscillation (AO) and North Atlantic Oscillation (NAO) and which circulation types according to the Hess-Brezowsky classification are favourable/unfavourable for the monthly and seasonal forecasting of air temperature and precipitation.
format article
author Arūnas Bukantis
Gytis Valaika
author_facet Arūnas Bukantis
Gytis Valaika
author_sort Arūnas Bukantis
title Accuracy of monthly and seasonal forecasts generated for the territory of Lithuania using NOAA’s Climate Forecast System version 2
title_short Accuracy of monthly and seasonal forecasts generated for the territory of Lithuania using NOAA’s Climate Forecast System version 2
title_full Accuracy of monthly and seasonal forecasts generated for the territory of Lithuania using NOAA’s Climate Forecast System version 2
title_fullStr Accuracy of monthly and seasonal forecasts generated for the territory of Lithuania using NOAA’s Climate Forecast System version 2
title_full_unstemmed Accuracy of monthly and seasonal forecasts generated for the territory of Lithuania using NOAA’s Climate Forecast System version 2
title_sort accuracy of monthly and seasonal forecasts generated for the territory of lithuania using noaa’s climate forecast system version 2
publisher Vilnius Gediminas Technical University
publishDate 2021
url https://doaj.org/article/82999680a1b9448998a4fa1a21dfe3e4
work_keys_str_mv AT arunasbukantis accuracyofmonthlyandseasonalforecastsgeneratedfortheterritoryoflithuaniausingnoaasclimateforecastsystemversion2
AT gytisvalaika accuracyofmonthlyandseasonalforecastsgeneratedfortheterritoryoflithuaniausingnoaasclimateforecastsystemversion2
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