Title
Potential of Red Edge Spectral Bands in Future Landsat Satellites on Agroecosystem Canopy Green Leaf Area Index Retrieval.
Abstract
Vegetation biophysical parameter retrieval is an important earth remote sensing system application. In this paper, we studied the potential impact of the addition of new spectral bands in the red edge region in future Landsat satellites on agroecosystem canopy green leaf area index (LAI) retrieval. The test data were simulated from SPARC '03 field campaign HyMap hyperspectral data. Three retrieval approaches were tested: empirical regression based on vegetation index, physical model-based look-up-table (LUT) inversion, and machine learning. The results of all three approaches showed that a potential new spectral band located between the Landsat-8 Operational Land Imager (OLI) red and NIR bands slightly improved the agroecosystem green LAI retrieval accuracy (R-2 of 0.787 vs. 0.810 for vegetation index approach, 0.806 vs. 0.828 for LUT inversion approach, and 0.925 vs. 0.933 for machine learning approach). The results of this work are consistent with the conclusions from previous research on the value of Sentinel-2 red edge bands for agricultural green LAI retrieval.
Year
DOI
Venue
2018
10.3390/rs10091458
REMOTE SENSING
Keywords
Field
DocType
Landsat,red edge band,leaf area index,vegetation indices,look-up-table inversion
Leaf area index,Satellite,Remote sensing,Geology,Spectral bands,Agroecosystem,Canopy,Red edge
Journal
Volume
Issue
ISSN
10
9
2072-4292
Citations 
PageRank 
References 
1
0.36
0
Authors
2
Name
Order
Citations
PageRank
zhaoyu cui111.03
John P. Kerekes219435.38