Patrones de Precipitación asociados a Extremos de Caudal Medio Mensual en la Provincia de Corrientes (Argentina)

Otros responsables
Fecha
12/2024
Editorial
Universidad Nacional del Nordeste. Instituto de Geografía
Revista
Geográfica Digital
Título del libro
Nombre del evento
Fecha del evento
Institución organizadora
ISSN
eISSN
1668-5180
ISBN
Idioma
Español
Tipo del evento
Clasificación temática
Palabras clave
Resumen
Se caracterizan los patrones de precipitación asociados a extremos de caudal medio mensual en los principales ríos de la Provincia de Corrientes, Argentina (1980-2022). Se utilizaron datos mensuales de caudal medio de seis estaciones de aforo para identificar casos donde el caudal medio fue inferior al percentil 5 (P05) o superior al percentil 95 (P95), definiendo los extremos mediante el criterio de ‘picos sobre un umbral’. Estos extremos se clasificaron según su alcance geográfico en localizados, intermedios y generalizados. Con la precipitación mensual del Reanálisis ERA5, se elaboraron campos de anomalías y se agruparon patrones similares mediante el algoritmo de k-means. Se detectaron cuatro patrones de precipitación para los extremos localizados, tres para los intermedios y dos para los generalizados. Los caudales inferiores al P05 se relacionan con anomalías pluviométricas negativas y los caudales superiores al P95 con anomalías positivas, aunque esta relación no es lineal debido a factores locales.
Precipitation patterns associated with monthly mean discharge extremes in the main rivers of Corrientes Province, Argentina (1980-2022), were characterized. Monthly mean discharge data from six gauging stations were used to identify cases where the monthly mean discharge was below the 5th percentile (P05) or above the 95th percentile (P95), defining the extremes based on the “peaks over threshold” criterion. These extremes were classified by their geographical extent as localized, intermediate, and generalized extremes. Using monthly precipitation data from the ERA5 Reanalysis, anomaly fields were calculated, and similar patterns were grouped with the k-means algorithm. Four precipitation patterns were identified for localized extremes, three for intermediate extremes, and two for generalized extremes. Discharges below P05 are associated with negative precipitation anomalies, while discharges above P95 are linked to positive anomalies. However, this relationship is not linear due to local factors.
Precipitation patterns associated with monthly mean discharge extremes in the main rivers of Corrientes Province, Argentina (1980-2022), were characterized. Monthly mean discharge data from six gauging stations were used to identify cases where the monthly mean discharge was below the 5th percentile (P05) or above the 95th percentile (P95), defining the extremes based on the “peaks over threshold” criterion. These extremes were classified by their geographical extent as localized, intermediate, and generalized extremes. Using monthly precipitation data from the ERA5 Reanalysis, anomaly fields were calculated, and similar patterns were grouped with the k-means algorithm. Four precipitation patterns were identified for localized extremes, three for intermediate extremes, and two for generalized extremes. Discharges below P05 are associated with negative precipitation anomalies, while discharges above P95 are linked to positive anomalies. However, this relationship is not linear due to local factors.
Colecciones
Aprobación
Revisión
Complementado por
Referenciado por
Licencia Creative Commons
Excepto donde se indique lo contrario, la licencia de este ítem se describe como by-nc
