A comparison between single site modeling and multiple site modeling approaches using Kalman filtering

This work presents a comparative study between two approaches to calibrate radar rainfall in real time. The weather radar provides continuous measurements in real-time which have errors of either meteorological or instrumental nature. Locally, gauge measurements have a greater performance than radar...

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Bibliographic Details
Main Author: Monteiro, Magda (author)
Other Authors: Costa, Marco (author)
Format: conferenceObject
Language:eng
Published: 2015
Subjects:
Online Access:http://hdl.handle.net/10773/13620
Country:Portugal
Oai:oai:ria.ua.pt:10773/13620
Description
Summary:This work presents a comparative study between two approaches to calibrate radar rainfall in real time. The weather radar provides continuous measurements in real-time which have errors of either meteorological or instrumental nature. Locally, gauge measurements have a greater performance than radar measurements that can be used to improve radar estimates. One way of doing that is via a state space representation associated to the Kalman filter algorithm. In the single- site modeling approach we use the linear calibration model applied in [1] and [3] while the multivariate state-space model proposed in [6] is used in the multiple site approach. This work aims to discuss and compare these two different state space formulations based on the same data set.