DOI: 10.1016/j.jag.2013.05.008
Scopus记录号: 2-s2.0-84897091468
论文题名: Fisher-Shannon information plane analysis of SPOT/VEGETATION normalized difference vegetation index (NDVI) time series to characterize vegetation recovery after fire disturbance
作者: Lanorte A ; , Lasaponara R ; , Lovallo M ; , Telesca L
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2014
卷: 26, 期: 1 起始页码: 441
结束页码: 446
语种: 英语
英文关键词: Fires
; Fisher information measure
; Satellite time series
; Shannon entropy
; SPOT
Scopus关键词: evergreen forest
; fire
; NDVI
; pixel
; spatial resolution
; SPOT
; time series
; vegetation cover
; Greece
; Peloponnese
; Spain
英文摘要: The time dynamics of SPOT-VEGETATION Normalized Difference Vegetation Index (NDVI) time series areanalyzed by using the statistical approach of the Fisher-Shannon (FS) information plane to assess andmonitor vegetation recovery after fire disturbance. Fisher-Shannon information plane analysis allowsus to gain insight into the complex structure of a time series to quantify its degree of organization andorder. The analysis was carried out using 10-day Maximum Value Composites of NDVI (MVC-NDVI) witha 1 km × 1 km spatial resolution. The investigation was performed on two test sites located in Galizia(North Spain) and Peloponnese (South Greece), selected for the vast fires which occurred during thesummer of 2006 and 2007 and for their different vegetation covers made up mainly of low shrublandin Galizia test site and evergreen forest in Peloponnese. Time series of MVC-NDVI have been analyzedbefore and after the occurrence of the fire events. Results obtained for both the investigated areas clearlypointed out that the dynamics of the pixel time series before the occurrence of the fire is characterized bya larger degree of disorder and uncertainty; while the pixel time series after the occurrence of the fire arefeatured by a higher degree of organization and order. In particular, regarding the Peloponneso fire, suchdiscrimination is more evident than in the Galizia fire. This suggests a clear possibility to discriminatethe different post-fire behaviors and dynamics exhibited by the different vegetation covers. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79800
Appears in Collections: 气候变化事实与影响
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作者单位: Consiglio Nazionale delle Ricerche, Istituto di Metodologie per l'Analisi Ambientale, C. da S. Loja, 85050 Tito, PZ, Italy; ARPAB, 85100 Potenza, Italy
Recommended Citation:
Lanorte A,, Lasaponara R,, Lovallo M,et al. Fisher-Shannon information plane analysis of SPOT/VEGETATION normalized difference vegetation index (NDVI) time series to characterize vegetation recovery after fire disturbance[J]. International Journal of Applied Earth Observation and Geoinformation,2014-01-01,26(1)