On the assimilation of C-band radar data into CERES-wheat model

Author

Dente, Laura ; Rinaldi, Michele ; Mattia, Francesco ; Satalino, Giuseppe

Author_Institution

Ist. di Studi sui Sistemi Intelligenti per l´´Automazione, CNR, Bari

Volume

2

fYear

2004

fDate

20-24 Sept. 2004

Firstpage

1284

Lastpage

1287

Abstract

Based on recent experimental studies which have found a strong correlation between a multitemporal series of C-band HH/W backscatter ratios acquired at 40deg incidence angle and wheat biomass, this work investigates the effect of the assimilation of the radar retrieved information into CERES-Wheat crop model. A sensitivity analysis has shown that an inaccurate knowledge of some model inputs, concerning soil properties and crop management, can lead to erroneous predictions. However adopting a reinitialisation assimilation strategy, significant improvements in the model estimations have been obtained

Keywords

crops; data assimilation; radar cross-sections; radar polarimetry; remote sensing by radar; soil; vegetation mapping; C-band HH/W backscatter ratio; CERES-Wheat model; crop management; multitemporal series; polarimetric C-band radar data assimilation; reinitialisation assimilation strategy; sensitivity analysis; soil properties; wheat biomass; Backscatter; Biomass; Crops; Information retrieval; Predictive models; Radar measurements; Remote sensing; Sensitivity analysis; Soil measurements; Spaceborne radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International

Conference_Location

Anchorage, AK

Print_ISBN

0-7803-8742-2

Type

conf

DOI

10.1109/IGARSS.2004.1368651

Filename

1368651