3:50 PM - 4:05 PM
[ACG36-26] MOLI(Multi-footprint Observation Lidar and Imager) Mission
for globally observing forest canopy height and forest structural characteristics from ISS(Internatinal Space Station)-JEM(Japanese Experimental Module)
Keywords:Forest biomass, Canopy height, Lidar, Imager, ISS-JEM, Forest structure
The Geoscience Laser Altimeter System (GLAS) on the Ice, Cloud and land Elevation Satellite (ICESat) had remarkably demonstrated higher potential that a laser altimetry was an excellent remote sensing not only for taking canopy height even in dense tropical forests but also for evaluating AGB by analyzing full waveforms. Therefore, a combination of the conventional remote sensing and the lidar on board satellite is significantly useful. For instance, recent studies approach a wall-to-wall mapping for distributions of the global canopy height, the forest biomass density and the carbon density.
A vegetation lidar and imager of MOLI( Multi-footprint Observation Lidar and Imager) mission onboard ISS-JEM presented here is a candidate of the first lidar mission in JAXA’s earth observation programs, which is planned to launch in 2021 just after a vegetation lidar of NASA/GEDI finished a two-year experiment. Both GEDI mission and MOLI mission should contribute to understanding the global environmental issue through more than three-year synergy effect. Another one-year operation will be expected if no system trouble happen. Multi footprint consisting of 2 footprints /shot with a footprint diameter of 25m are employed for self determination of slop angle & azimuth angle in order to reduce height errors induced by surface slope. A goal of the height error is less than 3m in RMSE. On the other hand, high resolution imager consists of RGB bands, a swath 500 m, a ground resolution of 5 m, respectively. The imager is adopted to provide information on tree crown size, height and field data for the conversion to AGB.
This paper describes an outline of MOLI mission and a mission requirement.