Metodología operativa para la obtención de datos históricos de precipitación a partir de la misión satelital Tropical Rainfall Measuring Mission. Validación de resultados con datos de pluviómetros

GAVILAN, SEBASTIAN; URANGA, JAVIER; FERRAL, ANABELA; ACEÑOLAZA, P.G.; PASTORE, JUAN IGNACIO; LIGHEZZOLO, ANDRES

Revista de la Facultad de Agronomía, La Plata

UNLP

Lugar: La Plata; Año: 2019 vol. 118 p. 111 - 121

0041-8676

Gavilan, Sebastián; Juan Ignacio Pastore; Javier Uranga; Anabella Ferral; Andrés Lighezzolo Pablo Aceñolaza (2019) Operational methodology to obtain historical rainfall data from the satellite Tropical Rainfall Measuring Mission. Validation of results with rain gauge data. Rev. Fac. Agron. Vol 118 (1): 111-121.Precipitation informationis critical for understanding the hydrological equilibrium on a global scale. Rain, with other conditions, represents a factor of interest for agricultural production. Therefore, the need of carrying out studies that makepossible to understand spatial and temporal variability of rainbecomes evident. This paper presents a methodology that allows the automatic downloading of time series of precipitation data from the Tropical Rainfall Measurement Mission (TRMM) from the Google Earth Engine (GEE)platform and validate it with a series of meteorological data. The system was developed under the GEEplatform for downloading theTRMMdata. As a case of study, the Arroyo Las Conchasbasin inthe Entre Ríos province, in Argentina was established. To validate the results, a set of data was generated with rainfall information in 16 yearperiod, by measuring the rain gauges for the area of influence atthe meteorological station in the Instituto Nacional de Tecnología Agropecuaria(INTA)Station at Oro Verde, Paraná,Entre Ríos,Argentina. The results through the evaluation process show a close relationship between both sources of information. The proposed methodology will allow generating sets of historical rainfall data to study the hydrologicalregime of the Las Conchas Stream basin