Data acquisition with the APEX hyperspectral sensor
Journal Title: Miscellanea Geographica - Regional Studies on Development - Year 2016, Vol 20, Issue 1
Abstract
APEX (Airborne Prism EXperiment) is a high spectral and spatial resolution hyperspectral sensor developed by a Swiss-Belgian consortium on behalf of the European Space Agency. Since the acceptance of the instrument in 2010, it has been operated jointly by the Flemish Institute for Technological Research (VITO, Mol, Belgium) and the Remote Sensing Laboratories (RSL, Zurich, Switzerland). During this period, several flight campaigns have been performed across Europe, gathering over 4 Terabytes of raw data. Following radiometric, geometric and atmospheric processing, this data has been provided to a multitude of Belgian and European researchers, institutes and agencies, including the European Space Agency (ESA), the European Facility for Airborne Research (EUFAR) and the Belgian Science Policy Office (BelSPO). The applications of APEX data span a wide range of research topics, e.g. landcover mapping (mountainous, coastal, countryside and urban regions), the assessment of important structural and (bio)physical characteristics of vegetative and non-vegetative species, the tracing of atmospheric gases, and water content analysis (chlorophyll, suspended matter). Recurrent instrument calibration, accurate flight planning and preparation, and experienced pilots and instrument operators are crucial to successful data acquisition campaigns. In this paper, we highlight in detail these practical aspects of a typical APEX data acquisition campaign.
Authors and Affiliations
Kristin Vreys, Marian-Daniel Iordache, Bart Bomans, Koen Meuleman
Keywords
Related Articles
- EP ID EP182776
- DOI 10.1515/mgrsd-2016-0001
- Views 92
- Downloads 0
VARIABILITY OF SPRING RIVERFLOW OF SELECTED LOWLAND RIVERS
This paper aims at identification of changes in the spring discharge of six lowland rivers in Poland in 1966-2006. The contribution of the spring flow (February, March, April) in the annual flow was analysed as well as t...
Kadavu Island: adaptation and stagnation in the Fijian periphery
The outer island of Kadavu is representative of the Fijian periphery. This paper deals with its physical characteristics, infrastructural conditions, and village economic activities with the aim of understanding the chan...
DISTANT YET LINKED PLACES -A THEORETICAL OUTLOOK ON GEOGRAPHY OF CONTEMPORARY ECONOMIC ACTIVITY
As number of studies show, Information and Communication Technologies (ICT) have become important factor of economic activity worldwide. This article presents a proposal of a theoretical approach to contemporary geograph...
TENDENCIES IN CLIMATE CHANGES IN POLAND AND UKRAINE DURING THE LAST CENTURIES AND THEIR CAUSES
The paper describes tendencies in changes of air temperature in Poland and Ukraine on the basis of a long series of measurements made in Warsaw (1779-2000), Cracow (1826-2000), Lviv (1824-2002) and Kiev (1812-2002). Air...
Laboratory and image spectroscopy for evaluating the biophysical state of meadow vegetation in the Krkonoše National Park
The paper deals with the evaluation of mountain meadow vegetation condition using in-situ measurements of the fraction of Accumulated Photosynthetically Active Radiation (fAPAR) and Leaf Area Index (LAI). The study analy...