منابع مشابه
Sampling and Mapping Forest Volume and Biomass Using Airborne LIDARs
—Since around 1995, extensive research efforts have been made in Scandinavia to develop airborne Light Detection and Ranging (LIDAR) as an operational tool for wall-to-wall mapping of forest stands for planning purposes. Scanning LIDAR has the ability to capture the entire three-dimensional structure of forest canopies and has therefore proved to be a very efficient technique to determine bioph...
متن کاملUsing airborne & space lidars for large-area inventory
Boudreau et al (2008) reports on a three-phase statistical framework for estimating forest biomass and carbon using a space LiDAR – ICESat/GLAS – as a large-area sampling tool to inventory the Province of Quebec. An airborne profiling LiDAR was used to tie ground plot observations to GLAS pulses by overflying both plots and pulses to facilitate development of two sets of regression equations. T...
متن کاملChallenges and Solutions for Frequency and Energy References for Spaceborne and Airborne Integrated Path Differential Absorption Lidars
The stringent requirements for both the frequency stability and power reference represent a challenging task for Integrated Path Differential Absorption Lidars (IPDA) to measure greenhouse gas columns from satellite or aircraft. Currently, the German-French methane mission MERLIN (Methan Remote Lidar Mission) is prepared. At the same time CHARM-F, an aircraft installed system has been developed...
متن کاملThe Lidars in Flat Terrain (LIFT) Experiment
The atmospheric boundary layer (ABL) is “that part of the troposphere that is directly influenced by the presence of the earth’s surface, and responds to surface forcings with a timescale of about an hour or less” (Stull 1988). Mixing in the ABL can be driven by surface heating (free convection) and wind shear (forced convection). A capping inversion usually limits the depth of the daytime conv...
متن کاملNoise suppressions in synchronized chaos lidars.
The noise suppressions in the chaos lidar (CLIDAR) and the synchronized chaos lidar (S-CLIDAR) systems with the optoelectronic feedback (OEF) and optical feedback (OF) schemes are studied numerically. Compared with the CLIDAR system, the S-CLIDAR system with the OEF scheme has better correlation coefficients in the large noise regime for SNR < 15 dB. For the S-CLIDAR system with the OF scheme, ...
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ژورنال
عنوان ژورنال: The Review of Laser Engineering
سال: 1989
ISSN: 0387-0200,1349-6603
DOI: 10.2184/lsj.17.4_300