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Lex, Sylvia and Conrad, Christopher and Schorcht, Gunther (2013) Analyzing the seasonal relations between in situ fpar / LAI of cotton and spectral information of RapidEye. In: From the Basics to the Service. 5th RESA Workshop, pp. 145-155. 5th RESA Workshop - From the Basics to the Service, 20. - 21. März 2013, Neustrelitz. ISBN 978-3-95545-002-1.
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Abstract
Leaf Area Index (LAI) and the fraction of absorbed Photosynthetically Active Radiation (fPAR) are frequently used for biophysical modeling of crop growth and yield prediction. This study examines the calculation of LAI and fPAR of cotton using statistical regression with spectral information of RapidEye. Based on the knowledge that commonly used vegetation indices (NDVI, SAVI, EVI) may underperform in the situation of dense vegetation the growing season was divided into main growth and reproductive phases. To account for saturation effects indices including the curvature in the red edge part of the spectra were tested. Field measurements on LAI and fPAR were carried out during the vegetation period of 2011 on cotton fields in Uzbekistan. The LAI/fPAR results for RapidEye data will be used as input for an upscaling to TERRA-MODIS time series and transfer to larger areas of Central Asia.
| Item URL in elib: | https://elib.dlr.de/87480/ | ||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||
| Title: | Analyzing the seasonal relations between in situ fpar / LAI of cotton and spectral information of RapidEye | ||||||||||||||||
| Authors: |
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| Date: | 2013 | ||||||||||||||||
| Journal or Publication Title: | From the Basics to the Service. 5th RESA Workshop | ||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||
| Open Access: | No | ||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||
| Page Range: | pp. 145-155 | ||||||||||||||||
| Editors: |
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| ISBN: | 978-3-95545-002-1 | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | Biophysical Parameters, cotton, RapidEye, Fergana Valley, RedEdge, Uzbekistan | ||||||||||||||||
| Event Title: | 5th RESA Workshop - From the Basics to the Service | ||||||||||||||||
| Event Location: | Neustrelitz | ||||||||||||||||
| Event Type: | Workshop | ||||||||||||||||
| Event Dates: | 20. - 21. März 2013 | ||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
| HGF - Program: | Space | ||||||||||||||||
| HGF - Program Themes: | Earth Observation | ||||||||||||||||
| DLR - Research area: | Raumfahrt | ||||||||||||||||
| DLR - Program: | R EO - Earth Observation | ||||||||||||||||
| DLR - Research theme (Project): | R - Geoscientific remote sensing and GIS methods | ||||||||||||||||
| Location: | Oberpfaffenhofen | ||||||||||||||||
| Institutes and Institutions: | German Remote Sensing Data Center | ||||||||||||||||
| Deposited By: | Wöhrl, Monika | ||||||||||||||||
| Deposited On: | 22 Jan 2014 21:14 | ||||||||||||||||
| Last Modified: | 08 Jul 2015 08:50 |
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