See More - Daily gridded precipitation dataset over mainland Portugal
Data description
The dataset PT02 is a new high resolution (0.2°×0.2°) daily gridded precipitation dataset over mainland Portugal. This dataset spans the period from 1950 to 2003 and is based on 806 stations, 188 meteorological stations from Portuguese Meteorological Service (IM) and 618 rain gauges from the National Water Institute (INAG). Most of these (726) stations have at least 10 years of data.
The interpolation method applied to create the PT02 dataset was the ordinary kriging, which was compared with simpler techniques, namely, inverse distance weighting methods.
This dataset was used to evaluate four global gridded datasets: two based on rain gauges (Climate Research Unit (CRU) and Global Precipitation Climate Center (GPCC)) and two ECMWF re-analyses (ERA-40 and ERA-Interim). A detailed description about PT02 and about the comparison with other datasets is presented in the paper:
- Belo-Pereira, M., E. Dutra, and P. Viterbo, 2011: Evaluation of global precipitation data sets over the Iberian Peninsula, J. Geophys. Res., 116, D20101, doi:10.1029/2010JD015481. See paper
Terms and conditions of use
Figure 1 - Spatial distribution of stations over mainland Portugal selected to build the gridded dataset and its temporal coverage (in years), considering a maximum of 30% of missing data. Black circles identify stations with data during more than 50 years. Blue triangles, orange circles, and black crosses represent stations with data between 31 and 50 years, 21 and 30 years, and 10 and 20 years, respectively.
The PT02 dataset was developed by IPMA, I.P. and is distributed freely for non-commercial research and education projects only. For commercial applications you should contact IPMA, I.P. ( info @ ipma.pt ).
Redistribution of data to third parties is not allowed without IPMA, I.P. ´s permission.
Any publications or application using the whole or part of this dataset, should include the following acknowledgments and citation:
- "The authors thank IPMA, I.P. by the data provided for this work (PT02 gridded precipitation dataset)".
- Belo-Pereira, M., E. Dutra, and P. Viterbo, 2011: Evaluation of global precipitation data sets over the Iberian Peninsula, J. Geophys. Res., 116, D20101, doi:10.1029/2010JD015481.
Data access
The access to the precipitation data from the dataset PT02 is done by accessing the following links:
For other purposes and other data will need to contact the IPMA, IP ( info @ ipma.pt ).
PT02 can be completed with the Spain dataset (http://www.meteo.unican.es/es/datasets/spain02) to obtain a precipitation dataset covering the Iberian Peninsula (IP02).
