Simplified model for the calculation of degrees-day with variable time scale

In this paper, the authors propose a simplified model for the calculation of degree days for different time scales and variable base temperature. It is summarized in six expressions that result in a simple, compact and easy to program model in any spreadsheet. Its main advantage lies in the integrat...

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Autores principales: Ovidio Rodríguez Santos, Oscar Cruz Fonticiella, Alfredo Leyva Céspedes
Formato: article
Lenguaje:ES
Publicado: Universidad Central "Marta Abreu" de Las Villas 2021
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Acceso en línea:https://doaj.org/article/78f018ec9c8041bf9f7d9bb9d8d034d6
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spelling oai:doaj.org-article:78f018ec9c8041bf9f7d9bb9d8d034d62021-11-16T15:03:46ZSimplified model for the calculation of degrees-day with variable time scale0253-57852072-2001https://doaj.org/article/78f018ec9c8041bf9f7d9bb9d8d034d62021-04-01T00:00:00Zhttp://cagricola.uclv.edu.cu/index.php/es/volumen-48-2021/no-2-abr-jun-2021/1295-modelo-simplificado-para-el-calculo-de-grados-dia-con-escala-de-tiempo-variablehttps://doaj.org/toc/0253-5785https://doaj.org/toc/2072-2001In this paper, the authors propose a simplified model for the calculation of degree days for different time scales and variable base temperature. It is summarized in six expressions that result in a simple, compact and easy to program model in any spreadsheet. Its main advantage lies in the integrated calculation of degree days for daily, monthly and annual time scales, which makes it attractive for its application in strategic sectors of the economy such as the electro-energy, construction and agriculture sectors. It is applicable to regions for which the values of the regression coefficients necessary for the determination of the equivalent temperature (parameter defined by the authors, valid for a given geographical region) have been previously fixed. These coefficients have been determined for the areas surrounding the Yabú meteorological station, belonging to the province of Villa Clara, for the territory covered by this province and for the whole territory of the Cuban archipelago. Two versions of the model are presented, a base version and an extended one; the first one uses as input variables the mean temperature, the mean minimum temperature and the mean maximum temperature, according to the time scale to be considered, the second one allows its application by introducing the mean temperature as the only input variable. The difference in accuracy between these versions is not significant, so both are recommendedOvidio Rodríguez SantosOscar Cruz FonticiellaAlfredo Leyva CéspedesUniversidad Central "Marta Abreu" de Las Villasarticleagricultureenergy managementthermal integralthermal timeheat unitsAgriculture (General)S1-972Plant ecologyQK900-989ESCentro Agrícola, Vol 48, Iss 2, Pp 57-65 (2021)
institution DOAJ
collection DOAJ
language ES
topic agriculture
energy management
thermal integral
thermal time
heat units
Agriculture (General)
S1-972
Plant ecology
QK900-989
spellingShingle agriculture
energy management
thermal integral
thermal time
heat units
Agriculture (General)
S1-972
Plant ecology
QK900-989
Ovidio Rodríguez Santos
Oscar Cruz Fonticiella
Alfredo Leyva Céspedes
Simplified model for the calculation of degrees-day with variable time scale
description In this paper, the authors propose a simplified model for the calculation of degree days for different time scales and variable base temperature. It is summarized in six expressions that result in a simple, compact and easy to program model in any spreadsheet. Its main advantage lies in the integrated calculation of degree days for daily, monthly and annual time scales, which makes it attractive for its application in strategic sectors of the economy such as the electro-energy, construction and agriculture sectors. It is applicable to regions for which the values of the regression coefficients necessary for the determination of the equivalent temperature (parameter defined by the authors, valid for a given geographical region) have been previously fixed. These coefficients have been determined for the areas surrounding the Yabú meteorological station, belonging to the province of Villa Clara, for the territory covered by this province and for the whole territory of the Cuban archipelago. Two versions of the model are presented, a base version and an extended one; the first one uses as input variables the mean temperature, the mean minimum temperature and the mean maximum temperature, according to the time scale to be considered, the second one allows its application by introducing the mean temperature as the only input variable. The difference in accuracy between these versions is not significant, so both are recommended
format article
author Ovidio Rodríguez Santos
Oscar Cruz Fonticiella
Alfredo Leyva Céspedes
author_facet Ovidio Rodríguez Santos
Oscar Cruz Fonticiella
Alfredo Leyva Céspedes
author_sort Ovidio Rodríguez Santos
title Simplified model for the calculation of degrees-day with variable time scale
title_short Simplified model for the calculation of degrees-day with variable time scale
title_full Simplified model for the calculation of degrees-day with variable time scale
title_fullStr Simplified model for the calculation of degrees-day with variable time scale
title_full_unstemmed Simplified model for the calculation of degrees-day with variable time scale
title_sort simplified model for the calculation of degrees-day with variable time scale
publisher Universidad Central "Marta Abreu" de Las Villas
publishDate 2021
url https://doaj.org/article/78f018ec9c8041bf9f7d9bb9d8d034d6
work_keys_str_mv AT ovidiorodriguezsantos simplifiedmodelforthecalculationofdegreesdaywithvariabletimescale
AT oscarcruzfonticiella simplifiedmodelforthecalculationofdegreesdaywithvariabletimescale
AT alfredoleyvacespedes simplifiedmodelforthecalculationofdegreesdaywithvariabletimescale
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