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AVHRR NDVI Compositing Method Comparison and Generation of Multi-decadal Time Series —A TIMELINE Thematic Processor

Asam, Sarah and Eisfelder, Christina and Hirner, Andreas and Reiners, Philipp and Holzwarth, Stefanie and Bachmann, Martin (2023) AVHRR NDVI Compositing Method Comparison and Generation of Multi-decadal Time Series —A TIMELINE Thematic Processor. Remote Sensing, 15 (6), p. 1631. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/rs15061631. ISSN 2072-4292.

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Official URL: https://www.mdpi.com/2072-4292/15/6/1631


Remote sensing image composites are crucial for a wide range of remote sensing applications, such as multi-decadal time series analysis. The Advanced Very High Resolution Radiometer (AVHRR) instrument provides daily data since the early 1980s at a spatial resolution of 1 km, allowing analyses of climate change related environmental processes. For monitoring vegetation condition, the Normalized Difference Vegetation Index (NDVI) is the most widely used metric. However, to actually enable such analyses, a consistent NDVI time series over the AVHRR time-span needs to be created. In this context, the aim of this study is to thoroughly assess the effect of different compositing procedures on AVHRR NDVI composites, as there is no standard procedure established. 13 different compositing methods have been implemented, daily, decadal and monthly composites over Europe and Northern Africa have been calculated for the year 2007, and the resulting data sets have been thoroughly evaluated according to six criteria. The median approach was selected as the best performing compositing algorithm considering all investigated aspects. However, also the combination of NDVI value and viewing and illumination angles as criteria for best-pixel selection proved to be a promising approach. The generated NDVI time series, currently ranging from 1981 - 2018, shows a consistent behavior and a close agreement to the standard MODIS NDVI product. The conducted analyses demonstrate the strong influence of compositing procedures on the resulting AVHRR NDVI composites.

Item URL in elib:https://elib.dlr.de/194201/
Document Type:Article
Title:AVHRR NDVI Compositing Method Comparison and Generation of Multi-decadal Time Series —A TIMELINE Thematic Processor
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Asam, SarahUNSPECIFIEDhttps://orcid.org/0000-0002-7302-6813UNSPECIFIED
Eisfelder, ChristinaUNSPECIFIEDhttps://orcid.org/0000-0002-6790-6953UNSPECIFIED
Hirner, AndreasUNSPECIFIEDhttps://orcid.org/0009-0007-5473-9424UNSPECIFIED
Holzwarth, StefanieUNSPECIFIEDhttps://orcid.org/0000-0001-7364-7006UNSPECIFIED
Bachmann, MartinUNSPECIFIEDhttps://orcid.org/0000-0001-8381-7662UNSPECIFIED
Date:17 March 2023
Journal or Publication Title:Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Page Range:p. 1631
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Keywords:AVHRR; NDVI; time series; remote sensing; multispectral; compositing; weighing; temporal synthesis; temporal statistics; Europe; AVHRR CDR; MODIS; TIMELINE
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 - Geoproducts and systems, services
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface Dynamics
Deposited By: Asam, Dr. Sarah
Deposited On:21 Mar 2023 11:51
Last Modified:21 Mar 2023 11:51

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