%0 Journal Article
%4 sid.inpe.br/plutao/2016/12.05.19.56.43
%2 sid.inpe.br/plutao/2016/12.05.19.56.44
%@doi 10.1061/(ASCE)HE.1943-5584.0001432
%@issn 1084-0699
%F lattes: 6072354470541631 8 CalvettiBNISGHG:2016:QuPrEs
%T Quantitative precipitation estimation integrated by poisson's equation using radar mosaic, satellite, and rain gauge network
%D 2017
%A Calvetti, Leonardo,
%A Beneti, Cesar,
%A Neundorf, Réverton Luís Antunes,
%A Inouye, Rafael Toshio,
%A Santos, Tiago Noronha dos,
%A Gomes, Ana Maria,
%A Herdies, Dirceu Luis,
%A Gonçalves, Luis Gustavo Gonçalves de,
%@affiliation Universidade Federal de Pelotas
%@affiliation SIMEPAR
%@affiliation SIMEPAR
%@affiliation SIMEPAR
%@affiliation SIMEPAR
%@affiliation Universidade Estadual Paulista (UNESP)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@electronicmailaddress lcalvetti@gmail.com
%@electronicmailaddress beneti@simpar.br
%@electronicmailaddress revertonluis@gmail.com
%@electronicmailaddress rafa.toshio@gmail.com
%@electronicmailaddress noronhati@gmail.com
%@electronicmailaddress ana@gheld.net.br
%@electronicmailaddress dirceu.herdies@cptec.inpe.br
%@electronicmailaddress gustavo.goncalves@cptec.inpe.br
%B Journal of Hydrologic Engineering
%V 22
%N 5
%P E5016003
%X High-resolution quantitative precipitation estimation (QPE) from radar and satellite combined with rain gauges is one of the most important guides for hydrological forecasts. Whereas rain gauges provide accurate measurement at a point, remote sensing helps to retrieve the spatial pattern. An algorithm, named Siprec, has been used to blend rain gauges, radar mosaic data, and satellite Eumetsat/MPE estimates by using Poissons equation over two basins in Brazil. The results indicated that Siprec decreased the root mean square error (RMSE) when compared to radar and satellite estimates as well as improved the correlation. Most of the errors were related to precipitation above 10 mm h−110 mm h−1, due to large spatial variability, typical of deep convection. The solution of Poissons equation acts directly on the data received at a certain time, converging the amplitude to the rain gauge values and keeping the spatial distribution of the radar or satellite measurement without a priori adjustments. This is an important advantage in an operational environment because it does not require frequent processing to update the weights like other schemes.
%@language en
%3 Siprec_poisson_JHE_Calvetti_etal_2016.pdf
%U http://ascelibrary.org/doi/ref/10.1061/%28ASCE%29HE.1943-5584.0001432