Minimizing measurement uncertainties of coniferous needle-leaf optical properties, part I: methodological review

Authors

Lucia Yanez-Rausell, Wageningen University
Michael E. Schaepman, University of Zurich
Jan G. P. W Clevers, Wageningen University
Zbynek Malenovsky, University of ZurichFollow

RIS ID

97896

Publication Details

Yanez-Rausell, L., Schaepman, M. E., Clevers, J. G. P. W. & Malenovsky, Z. (2014). Minimizing measurement uncertainties of coniferous needle-leaf optical properties, part I: methodological review. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 7 (2), 399-405.

Abstract

Optical properties (OPs) of non-flat narrow plant leaves, i.e., coniferous needles, are extensively used by the remote sensing community, in particular for calibration and validation of radiative transfer models at leaf and canopy level. Optical measurements of such small living elements are, however, a technical challenge and only few studies attempted so far to investigate and quantify related measurement errors. In this paper we review current methods and developments measuring optical properties of narrow leaves. We discuss measurement shortcomings and knowledge gaps related to a particular case of non-flat nonbifacial coniferous needle leaves, e.g., needles of Norway spruce (Picea abies (L.) Karst.).