Abstract
The centimeter-scale roughness of natural surfaces, such as soil and sea ice, influences both microwave scattering and turbulent exchanges of heat and momentum between the surface and atmosphere. In this paper, we present a technique for determining surface roughness parameters from high-resolution terrestrial Light Detection and Ranging (LiDAR) data. Field tests demonstrate that the two-dimensional roughness parameters obtained are considerably more precise than parameters determined from traditional one-dimensional profiling techniques. However, laboratory experiments show that the accuracy of the measured roughness parameters is limited by the high inclination scanning angle of the LiDAR system. Results from a numerical model are used to determine a set of calibration functions which can be used to easily correct the LiDAR measurements for the inclination angle effects.
Original language | English |
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Title of host publication | 2015 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 2068-2071 |
Number of pages | 4 |
Volume | 2015-November |
ISBN (Electronic) | 9781479979295 |
DOIs | |
Publication status | Published - 10 Nov 2015 |
Event | IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Milan, Italy Duration: 26 Jul 2015 → 31 Jul 2015 |
Conference
Conference | IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 |
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Country/Territory | Italy |
City | Milan |
Period | 26/07/15 → 31/07/15 |
Keywords
- Geophysical measurements
- laser applications
- numerical modelling
- parameter estimation
- sea ice
- surface roughness