DocumentCode :
142367
Title :
An automatic mosaicking algorithm for generating a large-scale forest stand height map using spaceborne repeat-pass InSAR coherence
Author :
Yang Lei ; Siqueira, Paul
Author_Institution :
Univ. of Massachusetts, Amherst, MA, USA
fYear :
2014
fDate :
13-18 July 2014
Firstpage :
84
Lastpage :
87
Abstract :
This paper describes the algorithm and results for an automatic mosaicking method in generating a large-scale forest stand height (FSH) map utilizing spaceborne repeat-pass HV-pol InSAR coherence data. This technique demonstrates the capability for creating FSH metrics that can cover large areas. By using repeat-pass InSAR correlation measurements that are dominated by temporal decorrelation and scene-wide fitting parameters (two) that depend on the mean random motion and dielectric changes of the volume scatterers within the scene, it can be shown that a height sensitive measure can be created and validated over the whole scene. In order to combine these single-scene results into a mosaic, a matrix formulation is used with nonlinear least squares (NLS) and observations in adjacent-scene overlap areas to create a self-consistent estimate of FSH over the larger region. This mosaicking algorithm is validated over the US state of Maine by comparing the inverted FSH with Laser Vegetation Imaging Sensor (LVIS) height and National Biomass and Carbon Dataset (NBCD) Basal Area Weighted (BAW) height.
Keywords :
carbon; geophysical techniques; radar interferometry; spaceborne radar; synthetic aperture radar; vegetation mapping; FSH metric capability; LVIS height; Laser Vegetation Imaging Sensor height; Maine; NBCD BAW height; NLS; National Biomass and Carbon Dataset; US state; adjacent-scene overlap area; automatic mosaicking algorithm; automatic mosaicking method; basal area weighted height; height sensitive measure; inverted FSH; large-scale FSH map; large-scale forest stand height map; matrix formulation; mean random motion; mosaic single-scene result; nonlinear least square; repeat-pass InSAR correlation measurement; scene-wide fitting parameter; self-consistent FSH estimation; spaceborne repeat-pass HV-pol InSAR coherence data; temporal decorrelation; volume scatterer dielectric change; Coherence; Correlation; Decorrelation; Dielectrics; Spaceborne radar; Vegetation; InSAR; coherence; forest stand height; mosaic;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
Type :
conf
DOI :
10.1109/IGARSS.2014.6946361
Filename :
6946361
Link To Document :
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