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Forest structure monitoring by means of multi-baseline SAR configurations

Papathanassiou, Konstantinos and Tello Alonso, Marivi and Cazcarra-Bes, Victor and Pardini, Matteo and Kim, Jun Su (2018) Forest structure monitoring by means of multi-baseline SAR configurations. ForestSat, 2018-10-02 - 2018-10-05, College Park, MD, USA.

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Abstract

The penetration capability of microwaves into and through vegetation layers allows scattering interactions across the whole vertical vegetation extend. This, combined with the ability of multi-baseline Synthetic Aperture Radar (SAR) techniques to reconstruct the 3D radar reflectivity opens the door to the use of air- and space-borne SAR configurations to explore and map forest structure parameters on large (global) scales with high spatial and temporal resolution. In this paper we discuss the potential of multi-baseline SAR configurations to estimate (or map) physical forest structure parameters. For this, first the link between 3D radar reflectivity and 3D forest structure has to be established. Accordingly, a framework for qualitative and quantitative forest structure interpretation and estimation from 3D radar reflectivity reconstructed by multi-baseline SAR measurements is introduced, reviewed and validated against experimental data (including Lidar and inventory meassurements) acquired over/in different temperate and tropical forest conditions. The role of system frequency, implementation and spatial resolution is discussed. The dependency of the obtained / possible structure estimates on the spatial scales is addressed and through the analysis on real and simulated data it is demonstrated that a single (spatial) scale does not always ensure a complete characterization of forest structure. The potential of multi-baseline SAR configurations to monitor dynamic effects as the temporal variations of forest structure induced by natural or anthropogenic changes is considered. Results achieved in the framework of actual air-borne SAR (F-SAR) temperate and tropical forest campaigns and/or experiments at different frequencies and/or configurations are critically discussed. Finally, the role of future multibaseline SAR spaceborne configurations / missions as Tandem-L in the context of global forest structure and structure change mapping is discussed.

Item URL in elib:https://elib.dlr.de/121289/
Document Type:Conference or Workshop Item (Speech)
Title:Forest structure monitoring by means of multi-baseline SAR configurations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Papathanassiou, KonstantinosUNSPECIFIEDUNSPECIFIED
Tello Alonso, MariviUNSPECIFIEDUNSPECIFIED
Cazcarra-Bes, VictorUNSPECIFIEDUNSPECIFIED
Pardini, MatteoUNSPECIFIEDUNSPECIFIED
Kim, Jun SuUNSPECIFIEDUNSPECIFIED
Date:2018
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Forest Structure and Biomass, Forest Monitoring, Radar Remote Sensing
Event Title:ForestSat
Event Location:College Park, MD, USA
Event Type:international Conference
Event Dates:2018-10-02 - 2018-10-05
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Sicherheitsrelevante Erdbeobachtung
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Radzuweit, Sibylle
Deposited On:13 Aug 2018 13:21
Last Modified:07 Nov 2018 16:05

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