TY - GEN
T1 - Application of the GR4j Method and the ERA5 Grilled Climatic Information to Obtain Monthly Flows in the Pisco Basin to the Letrayoc Station
AU - Fabricio, Flores Peralta Luis
AU - Rafael, Silva Arce George
AU - Abel, Carmona Arteaga
AU - Luis, Neyra Torres José
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.
PY - 2025
Y1 - 2025
N2 - Given the need to know the records of long-standing monthly flows in the Pisco River Basin and the little hydrometeorological information that is available within it, this research focused on generating series of historical flows using the ERA5 grilled climate records of average daily precipitation, average daily temperature, and monthly flows of the Pisco River basin to the Letrayoc hydrometric station provided by the Peruvian National Authority of Water (ANA). To generate these flows, the precipitation method – RUN off GR4j was used. With this method, excellent R2 correlation coefficients close to 1 were obtained between 2015 and 2017, both for its calibration and validation period. This excellent fit between the measured and generated records allowed us to build a historical record of 40 years between 1979 and 2019. These flows will be very useful in the development of water and hydrological projects in the future.
AB - Given the need to know the records of long-standing monthly flows in the Pisco River Basin and the little hydrometeorological information that is available within it, this research focused on generating series of historical flows using the ERA5 grilled climate records of average daily precipitation, average daily temperature, and monthly flows of the Pisco River basin to the Letrayoc hydrometric station provided by the Peruvian National Authority of Water (ANA). To generate these flows, the precipitation method – RUN off GR4j was used. With this method, excellent R2 correlation coefficients close to 1 were obtained between 2015 and 2017, both for its calibration and validation period. This excellent fit between the measured and generated records allowed us to build a historical record of 40 years between 1979 and 2019. These flows will be very useful in the development of water and hydrological projects in the future.
KW - Daily flows
KW - ERA5
KW - GR4j
KW - Letrayoc
KW - Monthly flows
KW - Pisco basin
UR - https://www.scopus.com/pages/publications/105010130590
U2 - 10.1007/978-3-031-92651-8_50
DO - 10.1007/978-3-031-92651-8_50
M3 - Conference contribution
AN - SCOPUS:105010130590
SN - 9783031926501
T3 - Smart Innovation, Systems and Technologies
SP - 476
EP - 484
BT - Proceedings of the 10th Brazilian Technology Symposium, BTSym 2024 - Emerging Trends and Challenges in Technology
A2 - Iano, Yuzo
A2 - Saotome, Osamu
A2 - Arthur, Rangel
A2 - Quispe-Barra, Marco Antonio
A2 - Vizuete, Marcelo Zambrano
A2 - Patel, Kanubhai K.
A2 - Gomes de Oliveira, Gabriel
T2 - 10th Brazilian Technology Symposium, BTSym 2024
Y2 - 16 October 2024 through 18 October 2024
ER -