Ground-truthing airborne geophysical data for carbon stock monitoring

A. Keaney, J. M. McKinley*, A. Ruffell, M. Robinson, C. Graham, J. Hodgson, M. Desissa

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

This research project uses previously generated airborne Tellus radiometric data (Tellus project, GSNI) and newly acquired data collected as part of the EU-funded Tellus Border project to improve peat depth models for Northern Ireland and the bordering counties of the Republic of Ireland. The theory being tested is that gamma radiation from rocks is attenuated by overlying peat. Improved peat depth models produced though the integration and calibration of the Tellus data against known peat depths are used to improve carbon stock estimations. A 6km test line of the airborne survey is undertaken every 4-6 weeks and flown at a series of different elevations to allow the data to be assessed temporally with different saturation levels. An associated field survey takes place every 4-6 weeks to obtain data on the ground to correspond as closely as possible to the timing of the airborne flight survey. Analysis techniques on the ground include magnetometry, resistivity, radiometrics, moisture content, GPR and peat probing. Results for the airborne flight survey and ground-based data collection indicate that similarities between the traces can be identified. Ground validation enables the effect of changes in factors such as soil moisture to be assessed for the airborne radiometric data.

Original languageEnglish
Publication statusPublished - 01 Jan 2012
Event1st EAGE/GRSG Remote Sensing Workshop and Exhibition - Paris, France
Duration: 03 Sep 201205 Sep 2012

Conference

Conference1st EAGE/GRSG Remote Sensing Workshop and Exhibition
CountryFrance
CityParis
Period03/09/201205/09/2012

ASJC Scopus subject areas

  • Geophysics

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