Basic-07: Principles of imaging spectroscopy: Illumination and surface roughness скачать в хорошем качестве

Basic-07: Principles of imaging spectroscopy: Illumination and surface roughness

Once on the Earth’s surface, solar radiation finally interacts with surface objects, whereas it is partly absorbed, reflected, and (in case of non-opaque objects) transmitted. Again, absorption is the uptake of energy by a substance and reflectance means that incoming radiation is reflected without energy being absorbed or emitted. During transmission, the radiation penetrates an object without energy change. The reflected part of the radiation leaves the object as directed spectral radiation, modified by the spectral characteristics (degree of reflection) of the object – this is actually the part that most (imaging) spectroscopy applications are interested in. Besides on its physico-chemical properties, the reflectance of any surface will depend on the illumination and viewing geometry as well as on surface roughness. *** FREE ONLINE COURSE *** ‘Beyond the Visible – Introduction to Hyperspectral Remote Sensing‘ is the first Massive Open Online Course (MOOC) on Hyperspectral Remote Sensing presented by HYPERedu and EO-College OPEN FROM 24 NOVEMBER 2021, 08:00 am GMT Register now: https://eo-college.org/courses/beyond... The course teaches the principles of imaging spectroscopy, sensor technologies and data acquisition techniques, hyperspectral data processing approaches and data sources and provides expert-guided hands-on training. The course was developed by GFZ Potsdam as part of the HYPERedu initiative with support from experts at various partner institutions. The development was funded within the EnMAP science program under the German Space Agency at DLR with resources from the German Federal Ministry of Economic Affairs and Energy. *** For FURTHER READING we recommend *** • Jensen J.R. (2007). Remote Sensing of the Environment: An Earth Resource Perspective. 2nd Edition, Pearson • Lillesand T., Kiefer R.W. & J. Chipman (2008). Remote Sensing and Image Interpretation. 6th Edition, Wiley. *** You can find almost all FIGURES OF THIS VIDEO in the HYPERedu slide collection *** Brosinsky, T. Kuester, S. Foerster, H. Kaufmann, K. Segl, L. Guanter (2021). Principles of imaging spectroscopy - Electromagnetic radiation and its interactions with earth surface materials, slide collection, HYPERedu, EnMAP education initiative, October 2019, German Centre for Geosciences GFZ. Available on EO-College: https://eo-college.org/resource/princ...