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Remote Sens. 2013, 5(7), 3357-3376; doi:10.3390/rs5073357
Article

Harmonization of Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) from Sea-ViewingWide Field-of-View Sensor (SeaWiFS) and Medium Resolution Imaging Spectrometer Instrument (MERIS)

,
*  and
Climate Risk Management Unit, Institute for Environment and Sustainability, European Commission Joint Research Centre, TP 272, Ispra 21020, Italy
* Author to whom correspondence should be addressed.
Received: 24 May 2013 / Revised: 9 July 2013 / Accepted: 9 July 2013 / Published: 12 July 2013
(This article belongs to the Special Issue High Performance Computing in Remote Sensing)
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Abstract

This paper describes the combination of terrestrial vegetation observations from two sensors, providing a historical dataset used for an in-depth analysis of the corresponding spatio-temporal patterns. The Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) is an important variable suitable for regional to large-scale monitoring of climate impacts on vegetation. In this work, we create an extensive dataset of FAPAR using a 10-day product at ∼1 km resolution from September, 1997, to April, 2012, combining information from two sensors: the NASA/Sea-viewing Wide Field-of-view Sensor (SeaWiFS) and the European Space Agency (ESA)/Medium Resolution Imaging Spectrometer Instrument (MERIS). The proposed methodology reduces the noise, fills the gaps and corrects for the spurious trends in the data, providing a time-consistent coverage of FAPAR. We develop a fast merging method and evaluate its performance over Europe and the Horn of Africa.
Keywords: MERIS; SeaWiFS; FAPAR; harmonization; trend MERIS; SeaWiFS; FAPAR; harmonization; trend
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Ceccherini, G.; Gobron, N.; Robustelli, M. Harmonization of Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) from Sea-ViewingWide Field-of-View Sensor (SeaWiFS) and Medium Resolution Imaging Spectrometer Instrument (MERIS). Remote Sens. 2013, 5, 3357-3376.

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