WE4_T05_1_lopezsanchez_rice_igarss2011.ppt

Monitoring and Retrieving Rice Phenology by means of Satellite SAR Polarimetry at X-band Juan M. Lopez-Sanchez J. David Ballester-Berman Signals, Systems & Telecommunications Group University of Alicante Shane R. Cloude AEL Consultants

Motivation ,[object Object],End users Demand Objective Authorities or agencies at national-regional-local level Crop-type mapping and classification Justification of subsidies, fraud detection, acreages, insurance claims, etc. Water resources consumption Control in regions suffering droughts or with scarce water resources Yield prediction Economic and market predictions, price regulations, etc. Farmers with extensive fields Timely information about crop condition Planning and triggering of farming practices according to specific phenological stages Water requirements Irrigation only when and where necessary Final crop productivity Benefits

Motivation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Site ,[object Object],30km x 30km

Ground campaign ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Satellite data 2008 2009 TerraSAR-X images provided by DLR in the framework of projects LAN0021 and LAN0234 Failed orders Available images

Analysis of observations ,[object Object],HH VV HH-VV

Analysis of observations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Coherent acquisition of co-pol channels

Analysis of observations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Coherent acquisition of co-pol channels Single-pol (ERS, Radarsat1) Quad-pol (ALOS-PALSAR, Radarsat-2) Incoherent dual-pol (Envisat) Coherent dual-pol (TerraSAR-X)

[object Object],Analysis of observations vs phenology HH and VV power Wind induced roughness Double-bounce Vertical orientation: differential extinction Development Increasing randomness Nearly random volume Vegetative phase Reproductive phase Maturation

[object Object],Analysis of observations vs phenology HH and VV power HH / VV Vegetative phase Reproductive phase Maturation Vegetative phase Reproductive phase Maturation

[object Object],Analysis of observations vs phenology Magnitude Phase (PPD) Vegetative phase Reproductive phase Maturation Vegetative phase Reproductive phase Maturation

[object Object],Analysis of observations vs phenology Entropy Alpha (dominant) Vegetative phase Reproductive phase Maturation Wind induced roughness Double-bounce +

[object Object],Analysis of observations vs phenology Volume component Polarized component Vegetative phase Reproductive phase Maturation Vegetative phase Reproductive phase Maturation

Retrieval of phenology from TSX data ,[object Object],[object Object],[object Object],[object Object]

Retrieval of phenology from TSX data ,[object Object],[object Object],[object Object]

Retrieval of phenology from TSX data ,[object Object]

Retrieval of phenology from TSX data ,[object Object],[object Object],Parcel B Parcel C

Retrieval of phenology from TSX data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Future lines of research ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

WE4_T05_1_lopezsanchez_rice_igarss2011.ppt

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