Title
PISCOeo_pm, a reference evapotranspiration gridded database based on FAO Penman-Monteith in Peru
Date Issued
01 December 2022
Access level
open access
Resource Type
data paper
Author(s)
Bonnesoeur V.
Cuadros-Adriazola J.
Gutierrez L.
Ochoa-Tocachi B.F.
Román-Dañobeytia F.
Publisher(s)
Nature Research
Abstract
A new FAO Penman-Monteith reference evapotranspiration gridded dataset is introduced, called PISCOeo_pm. PISCOeo_pm has been developed for the 1981–2016 period at ~1 km (0.01°) spatial resolution for the entire continental Peruvian territory. The framework for the development of PISCOeo_pm is based on previously generated gridded data of meteorological subvariables such as air temperature (maximum and minimum), sunshine duration, dew point temperature, and wind speed. Different steps, i.e., (i) quality control, (ii) gap-filling, (iii) homogenization, and (iv) spatial interpolation, were applied to the subvariables. Based on the results of an independent validation, on average, PISCOeo_pm exhibits better precision than three existing gridded products (CRU_TS, TerraClimate, and ERA5-Land) because it presents a predictive capacity above the average observed using daily and monthly data and has a higher spatial resolution. Therefore, PISCOeo_pm is useful for better understanding the terrestrial water and energy balances in Peru as well as for its application in fields such as climatology, hydrology, and agronomy, among others.
Volume
9
Issue
1
Language
English
OCDE Knowledge area
Meteorología y ciencias atmosféricas
Scopus EID
2-s2.0-85132109365
Source
Scientific Data
ISSN of the container
20524463
Sponsor(s)
This publication is made possible by the generous support of the American people through the United States Agency for International Development (USAID) and the Government of Canada. The contents are the responsibility of the authors, and do not necessarily reflect the views of USAID, the United States Government or the Government of Canada. This research was also funded by Newton-Paulet fund through “Water Security and Climate Change adaptation in Peruvian glacier-fed river basins” (RAHU project). Contract N° 005-2019-FONDECYT. Peru. We are grateful for the freely available global gridded data: ERA5-Land climate reanalysis data from the Copernicus Climate Change Service (C3S) Climate Data Store at https://cds.climate.copernicus.eu/ , the TerraClimate data from the Climatology Lab portal at https://www.climatologylab.org/terraclimate.html ; and, the CRU_TS climate data from Climatic Research Unit at https://crudata.uea.ac.uk/cru/data/hrg/ .
Sources of information:
Directorio de Producción Científica
Scopus
Servicio Nacional de Meteorología e Hidrología del Perú