Science Service System

Summary of Proposal LAN0019

TitleMeasuring subsidence of tropical peat soils and vegetation parameters in Kalimantan, Indonesia using TerraSAR-X
Investigator Tansey, Kevin - University of Leicester, Department of Geography
Team Members
Dr. Page, Sue - University of Leicester, Department of Geography
Miss Hoscilo, Agata - University of Leicester, Department of Geography
Ir. Limin, Suwido - University of Palangka Raya, Centre for International Co-operation in Management of Tropical Peatlands (CIMTR
SummaryThe aim of this project is to exploit the potential of TerraSAR-X to observe and measure a number of important properties and processes in tropical peat swamp forests. Tropical peatlands are important carbon sinks and stores, habitats for endangered animals and are considered to be of high biodiversity. Many tropical peatlands that are forested are being subjected to deforestation to agriculture with the resulting loss of peat soil through drainage, erosion and fire. This project will focus on a region in Central Kalimantan, Indonesia.

Specific objectives are:
To derive a digital elevation model of the region by means of InSAR methods. Monitor changes in height of the land surface with respect to changes in land cover, occurrence of fire and drainage of peat soils.
Investigate the potential for retrieval of biophysical properties of forested areas, for example, tree height, biomass, etc. Use this information to monitor the regrowth of vegetation that has occurred as a result of restoration work that has been undertaken in the study area.
Evaluate the information provided to provide quantitative spatial information on the amount of peat soil that has subsided and relate this loss to carbon emissions.

Validation of these products will be undertaken in the field. Anticipated deliverables include a DEM of the study area derived from InSAR methods, images showing the spatial distribution and variation in subsidence in the study area, validated subsidence rates derived from in-situ point measurement (secondary data) and recently acquired GPS height values, estimates of peat soil loss in terms of volumetric loss and carbon emissions. The results will be published international journals e.g. Remote Sensing of Environment, IEEE Transactions of Geoscience and Remote Sensing and Journal of Geophysical Research.

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DLR 2004-2016