A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)

This paper presents a new index to determine meteorological drought conditions, the Drought Exceedance Probability Index (DEPI), derived from monthly precipitation time series. Its formulation is simple and undemanding in terms of baseline information requirements. This makes the DEPI suitable for r...

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Detalles Bibliográficos
Autores: Limones, Natalia, Pita- López, María Fernanda, Camarillo-Naranjo, Juan Mariano
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:México
Institución:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
Repositorio:Atmósfera
Idioma:inglés
OAI Identifier:oai:ojs.pkp.sfu.ca:article/52870
Acceso en línea:https://www.revistascca.unam.mx/atm/index.php/atm/article/view/52870
Access Level:acceso abierto
Palabra clave:drought
drought Index
precipitation extremes
drought hazard assessment
climatology
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spelling A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)Limones, NataliaPita- López, María FernandaCamarillo-Naranjo, Juan Marianodroughtdrought Indexprecipitation extremesdrought hazard assessmentclimatologyThis paper presents a new index to determine meteorological drought conditions, the Drought Exceedance Probability Index (DEPI), derived from monthly precipitation time series. Its formulation is simple and undemanding in terms of baseline information requirements. This makes the DEPI suitable for routine application to any climate, similar to the well-known Standardized Precipitation Index (SPI). The index is based on the calculation of cumulative rainfall anomalies and their subsequent standardization, similarly to other indices. The hallmarks of the DEPI, and its main comparative advantages, are the process of accumulating anomalies and their standardization process. The paper compares the DEPI with the SPI in several different climates across the world and in all cases the results show the complementarity of both indices. The DEPI shows an excellent ability to reflect the actual severity and duration of droughts, without requiring application on different time scales, unlike the SPI. It is also valid for all types of climates, including arid and semiarid or Mediterranean, for which the literature has shown that using the SPI is problematic.Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México2021-12-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlapplication/pdfhttps://www.revistascca.unam.mx/atm/index.php/atm/article/view/5287010.20937/ATM.52870Atmósfera; Vol. 35 Núm. 1 (2022); 67-88Atmósfera; Vol. 35 No. 1 (2022); 67-882395-88120187-623610.20937/ATM.35.01reponame:Atmósferainstname:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICOinstacron:UNAMenghttps://www.revistascca.unam.mx/atm/index.php/atm/article/view/52870/46937https://www.revistascca.unam.mx/atm/index.php/atm/article/view/52870/46746Copyright (c) 2020 Atmósferahttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessoai:ojs.pkp.sfu.ca:article/528702024-08-16T16:52:41Z
dc.title.none.fl_str_mv A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)
title A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)
spellingShingle A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)
Limones, Natalia
drought
drought Index
precipitation extremes
drought hazard assessment
climatology
title_short A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)
title_full A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)
title_fullStr A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)
title_full_unstemmed A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)
title_sort A new index to assess meteorological drought: the Drought Exceedance Probability Index (DEPI)
dc.creator.none.fl_str_mv Limones, Natalia
Pita- López, María Fernanda
Camarillo-Naranjo, Juan Mariano
author Limones, Natalia
author_facet Limones, Natalia
Pita- López, María Fernanda
Camarillo-Naranjo, Juan Mariano
author_role author
author2 Pita- López, María Fernanda
Camarillo-Naranjo, Juan Mariano
author2_role author
author
dc.subject.none.fl_str_mv drought
drought Index
precipitation extremes
drought hazard assessment
climatology
topic drought
drought Index
precipitation extremes
drought hazard assessment
climatology
description This paper presents a new index to determine meteorological drought conditions, the Drought Exceedance Probability Index (DEPI), derived from monthly precipitation time series. Its formulation is simple and undemanding in terms of baseline information requirements. This makes the DEPI suitable for routine application to any climate, similar to the well-known Standardized Precipitation Index (SPI). The index is based on the calculation of cumulative rainfall anomalies and their subsequent standardization, similarly to other indices. The hallmarks of the DEPI, and its main comparative advantages, are the process of accumulating anomalies and their standardization process. The paper compares the DEPI with the SPI in several different climates across the world and in all cases the results show the complementarity of both indices. The DEPI shows an excellent ability to reflect the actual severity and duration of droughts, without requiring application on different time scales, unlike the SPI. It is also valid for all types of climates, including arid and semiarid or Mediterranean, for which the literature has shown that using the SPI is problematic.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-18
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.revistascca.unam.mx/atm/index.php/atm/article/view/52870
10.20937/ATM.52870
url https://www.revistascca.unam.mx/atm/index.php/atm/article/view/52870
identifier_str_mv 10.20937/ATM.52870
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistascca.unam.mx/atm/index.php/atm/article/view/52870/46937
https://www.revistascca.unam.mx/atm/index.php/atm/article/view/52870/46746
dc.rights.none.fl_str_mv Copyright (c) 2020 Atmósfera
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Atmósfera
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
application/pdf
dc.publisher.none.fl_str_mv Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México
publisher.none.fl_str_mv Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México
dc.source.none.fl_str_mv Atmósfera; Vol. 35 Núm. 1 (2022); 67-88
Atmósfera; Vol. 35 No. 1 (2022); 67-88
2395-8812
0187-6236
10.20937/ATM.35.01
reponame:Atmósfera
instname:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
instacron:UNAM
instname_str UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
instacron_str UNAM
institution UNAM
reponame_str Atmósfera
collection Atmósfera
repository.name.fl_str_mv
repository.mail.fl_str_mv
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