A Manual Transportable Instrument Platform for Ground-Based Spectro-Directional Observations (ManTIS) and the Resultant Hyperspectral Field Goniometer System

Sensors

Marcel Buchhorn¹  Reinhold Petereit² 

[1] Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI), Research Unit Potsdam, Telegrafenberg A43, Potsdam D-14473, Germany; E-Mail:;Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI), Scientific Workshop Department Bremerhaven, Am Handelshafen 12, Bremerhaven D-27570, Germany; E-Mail:

关键词: reflectance anisotropy;    spectro-directional remote sensing;    spectro-goniometer;    HDRF;    BRDF;    hyperspectral HCRF measurements;   

DOI  :  10.3390/s131216105

来源: mdpi

【 摘 要 】

This article presents and technically describes a new field spectro-goniometer system for the ground-based characterization of the surface reflectance anisotropy under natural illumination conditions developed at the Alfred Wegener Institute (AWI). The spectro-goniometer consists of a Manual Transportable Instrument platform for ground-based Spectro-directional observations (ManTIS), and a hyperspectral sensor system. The presented measurement strategy shows that the AWI ManTIS field spectro-goniometer can deliver high quality hemispherical conical reflectance factor (HCRF) measurements with a pointing accuracy of ±6 cm within the constant observation center. The sampling of a ManTIS hemisphere (up to 30° viewing zenith, 360° viewing azimuth) needs approx. 18 min. The developed data processing chain in combination with the software used for the semi-automatic control provides a reliable method to reduce temporal effects during the measurements. The presented visualization and analysis approaches of the HCRF data of an Arctic low growing vegetation showcase prove the high quality of spectro-goniometer measurements. The patented low-cost and lightweight ManTIS instrument platform can be customized for various research needs and is available for purchase.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.