An Effective Method for InSAR Mapping of Tropical Forest Degradation in Hilly Areas

Current satellite remote sensing methods struggle to detect and map forest degradation, which is a critical issue as it is likely a major and growing source of carbon emissions and biodiveristy loss. TanDEM-X InSAR phase height is a promising variable for measuring forest disturbances, as it is closely related to the mean canopy height, and thus should decrease if canopy trees are removed. However, previous research has focused on relatively flat terrains, despite the fact that much of the world's remaining tropical forests are found in hilly areas, and this inevitably introduces artifacts in sideways imaging systems. In this paper, we find a relationship between InSAR phase height and aboveground biomass change in four selectively logged plots in a hilly region of central Gabon. We show that minimising multilooking prior to the calculation of InSAR phase height on a pixel-by-pixel basis. This shows that TanDEM-X InSAR can measure the magnitude of degradation, and that topographic effects can be mitigated if data from multiple SAR viewing geometries are available

SAR Toolbox User Manual and Functional Description

This document describes how to use the SAR Toolbox (STB) along with its structure and setup

SAR Toolbox Verification and Validation Plan

This test plan describes the test procedure for verification and validation testing of the SAR Toolbox (STB)

External Calibration Tool Interface Description

Description of the input and output interfaces of the External Calibration Too

Internal Calibration Tool User Manual and Functional Description - Issue 1.1

Internal Calibration Tool User manual and Functional Description (Version 1.1

Internal Calibration Tool User Manual and Functional Description

Internal Calibration Tool User manual and Functional Description (Version 1.1

Internal Calibration Tool Verification and Validation Plan - Issue 1.2

Test plan for verification and validation of the Internal Calibration Tool (Version 1.2