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Title: | Measurement of sun induced chlorophyll fluorescence using hyperspectral satellite imagery | Authors: | Irteza, SM Nichol, JE |
Issue Date: | 2016 | Source: | International archives of the photogrammetry, remote sensing and spatial information sciences, 2016, v. XLI-B8, p. 911-913 | Abstract: | Solar Induced Chlorophyll Fluorescence (SIF), can be used as an indicator of stress in vegetation. Several scientific approaches have been made and there is considerable evidence that steady state Chlorophyll fluorescence is an accurate indicator of plant stress hence a reliable tool to monitor vegetation health status. Retrieval of Chlorophyll fluorescence provides an insight into photochemical and carbon sequestration processes within vegetation. Detection of Chlorophyll fluorescence has been well understood in the laboratory and field measurement. Fluorescence retrieval methods were applied in and around the atmospheric absorption bands 02B (Red wavelength) approximately 690 nm and 02A (Far red wavelengths) 740 nm. Hyperion satellite images were acquired for the years 2012 to 2015 in different seasons. Atmospheric corrections were applied using the 6S Model. The Fraunhofer Line Discrimanator (FLD) method was applied for retrieval of SIF from the Hyperion images by measuring the signal around the absorption bands in both vegetated and non vegetated land cover types. Absorption values were extracted in all the selected bands and the fluorescence signal was detected. The relationships between NDVI and Fluorescence derived from the satellite images are investigated to understand vegetation response within the absorption bands. | Keywords: | Forest stress analysis Hyperspectral Image analysis Sun Induced Chlorophyll Fluorescence Hong Kong Hyperion satellite images Vegetation Indices |
Publisher: | Copernicus GmbH | Journal: | International archives of the photogrammetry, remote sensing and spatial information sciences | ISSN: | 1682-1750 | EISSN: | 2194-9034 | DOI: | 10.5194/isprsarchives-XLI-B8-911-2016 | Description: | 23rd Congress of the International-Society-for-Photogrammetry-and-Remote-Sensing (ISPRS), Prague, Czech Republic, Jul 12-19, 2016 | Rights: | © Author(s) 2016. This work is distributed under the Creative Commons Attribution 3.0 License. The following publication Irteza, S. M. and Nichol, J. E.: Measurement of sun induced chlorophyll fluorescence using hyperspectral satellite imagery, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B8, 2016, 911-913 is available at https://doi.org/10.5194/isprs-archives-XLI-B8-911-2016. |
Appears in Collections: | Conference Paper |
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