Title :
Spatio-temporal interpolation of sea surface temperature using high resolution remote sensing data
Author :
Lguensat, Redouane ; Tandeo, Pierre ; Fablet, Ronan ; Garello, Rene
Author_Institution :
LabSTICC, Technopole Brest Iroise, Brest, France
Abstract :
In this work, we present a statistical model to generate relevant reanalysis of geophysical parameters. In particular, we use a stochastic equation to control the temporal and spatial variability of the signal and we take into account the possible error of the observations. We resolve the system iteratively using an ensemble Kalman filter and smoother. We apply the methodology to remote sensing data of Sea Surface Temperature (SST). We use high resolution SST maps provided by an infrared sensor, sensible to the presence of cloud. Comparing the results with the reference SST reanalysis, we demonstrate the capability of our approach to interpolate missing data and keep into account the spatial and temporal consistency of the SST signal.
Keywords :
Kalman filters; geophysical image processing; image resolution; infrared detectors; iterative methods; ocean temperature; oceanographic equipment; oceanographic techniques; remote sensing; statistical analysis; stochastic processes; cloud; ensemble Kalman filter; geophysical parameters; high resolution remote sensing data; high resolution sea surface temperature maps; infrared sensor; missing data; reference sea surface temperature reanalysis; sea surface temperature signal; smoother; spatial consistency; spatial variability; spatiotemporal interpolation; statistical model; stochastic equation; temporal consistency; temporal variability; Interpolation; Mathematical model; Ocean temperature; Remote sensing; Satellites; Sea surface;
Conference_Titel :
Oceans - St. John's, 2014
Conference_Location :
St. John´s, NL
Print_ISBN :
978-1-4799-4920-5
DOI :
10.1109/OCEANS.2014.7002988