MERIS and the red-edge position

J.G.P.W. Clevers, S.M. de Jong, G.F. Epema, F. van der Meer, W.H. Bakker, A.K. Skidmore, E.A. Addink

Research output: Contribution to journalArticleAcademicpeer-review

24 Citations (Scopus)

Abstract

The Medium Resolution Imaging Spectrometer (MERIS) is a payload component of Envisat-1. MERIS will be operated over land with a standard 15 band setting acquiring images with a 300 m spatial resolution. The red-edge position (REP) is a promising variable for deriving foliar chlorophyll concentration, which plays an important role in ecosystem processes. The objectives of this paper are: (1) to study which factors effect the REP of vegetation, (2) to study whether this REP can be derived from the MERIS standard band setting and (3) to show what REP represents at the scale of MERIS data. Two different data sets were explored for simulating the REP using MERIS bands: (1) simulated data using reflectance models and (2) airborne reflectance spectra of an agricultural area obtained by the airborne visible-infrared imaging spectrometer (AVIRIS). A "linear method", assuming a straight slope of the reflectance spectrum around the midpoint of the slope, was a robust method for determining the REP and the MERIS bands at 665, 708.75, 753.75 and 778.75 nm could be used for applying the "linear method" for REP estimation. Results of the translation to the scale of MERIS data were very promising for applying MERIS at, for instance, the ecosystem level.
Original languageEnglish
Pages (from-to)313-320
JournalInternational Journal of applied Earth Observation and Geoinformation
Volume3
Issue number4
DOIs
Publication statusPublished - 2002

Fingerprint Dive into the research topics of 'MERIS and the red-edge position'. Together they form a unique fingerprint.

  • Cite this

    Clevers, J. G. P. W., de Jong, S. M., Epema, G. F., van der Meer, F., Bakker, W. H., Skidmore, A. K., & Addink, E. A. (2002). MERIS and the red-edge position. International Journal of applied Earth Observation and Geoinformation, 3(4), 313-320. https://doi.org/10.1016/s0303-2434(01)85038-8