Title :
Using Remote Sensing Data to Quantify Changes in Vegetation over Peatland Areas
Author :
MacBean, N. ; Disney, M. ; Lewis, P. ; Ineson, P.
Author_Institution :
Dept. of Geogr., Univ. Coll. London, London
Abstract :
A time-series of MODIS Terra daily 500 m resolution surface reflectance data is investigated to examine the effect of current land management activity taking place on an upland peat site in North Wales. A catchment-scale controlled experiment has been set up to monitor the effect blocking of the artificial drainage channels (`grips´) has on the ecosystem dynamics. The reflectance data and the Normalised Difference Vegetation Index (NDVI) and Normalised Difference Water Index (NDWI) were compared both before and after the period of grip blocking and between the control and treated catchmensts. No change was observed as a result of the grip blocking. Reasons why this might be the case are discussed.
Keywords :
carbon; geochemistry; groundwater; moisture; soil; time series; vegetation mapping; MODIS Terra surface reflectance data; NDVI; NDWI; Normalised Difference Vegetation Index; Normalised Difference Water Index; North Wales; UK; artificial drainage channels; catchment-scale controlled experiment; ecosystem dynamics; grip blocking; land management activity; peatland areas; remote sensing data; time-series; upland peat site; vegetation changes; Carbon dioxide; Earth; Ecosystems; Floods; Intelligent networks; Land surface; Reflectivity; Remote sensing; Soil; Vegetation;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4779730
