Researchers continually demonstrated through published literature how LiDAR could create unparalleled measurements of ecosystem structure and forest height.There are a number of studies conducted utilizing waveform Li...Researchers continually demonstrated through published literature how LiDAR could create unparalleled measurements of ecosystem structure and forest height.There are a number of studies conducted utilizing waveform LiDAR products for terrestrial monitoring,but those that deal specifically with the assessment of space-borne waveform LiDAR for monitoring and modeling of phenology is very limited.This review highlights the waveform LiDAR system and looks into satellite sensors that could link waveform LiDAR and vegetation phenology,such as the proposed NASA’s Global Ecosystem Dynamics Investigation(GEDI)and the Japanese Experimental Module(JEM)-borne LiDAR sensor named MOLI(Multi-footprint Observation LIDAR and Imager).Further,this work examines the richness and utility of the waveform returns and proposes a spline-function-derived model that could be exploited for estimating the leaf-shooting date.The new approach may be utilized for ecosystem-level phenological studies.展开更多
According to the second Short-term Commercial Paper Prospectus for 2012 of Shaanxi Nonferrous Metals Holdings Group Co., Ltd, by the end of 2011, the company owns 1,193,800 tonnes of molybdenum metal reserve, with 1.4...According to the second Short-term Commercial Paper Prospectus for 2012 of Shaanxi Nonferrous Metals Holdings Group Co., Ltd, by the end of 2011, the company owns 1,193,800 tonnes of molybdenum metal reserve, with 1.40 million tonnes of proven geological reserve of controllable lead and zinc ore, and 633,900 tonnes of recoverable metal deposit.展开更多
文摘Researchers continually demonstrated through published literature how LiDAR could create unparalleled measurements of ecosystem structure and forest height.There are a number of studies conducted utilizing waveform LiDAR products for terrestrial monitoring,but those that deal specifically with the assessment of space-borne waveform LiDAR for monitoring and modeling of phenology is very limited.This review highlights the waveform LiDAR system and looks into satellite sensors that could link waveform LiDAR and vegetation phenology,such as the proposed NASA’s Global Ecosystem Dynamics Investigation(GEDI)and the Japanese Experimental Module(JEM)-borne LiDAR sensor named MOLI(Multi-footprint Observation LIDAR and Imager).Further,this work examines the richness and utility of the waveform returns and proposes a spline-function-derived model that could be exploited for estimating the leaf-shooting date.The new approach may be utilized for ecosystem-level phenological studies.
文摘According to the second Short-term Commercial Paper Prospectus for 2012 of Shaanxi Nonferrous Metals Holdings Group Co., Ltd, by the end of 2011, the company owns 1,193,800 tonnes of molybdenum metal reserve, with 1.40 million tonnes of proven geological reserve of controllable lead and zinc ore, and 633,900 tonnes of recoverable metal deposit.
