Webbfirst spaceborne LiDAR system, geoscience laser altimeter system (GLAS) has demonstrated its advantage in collecting extensive for-est structureinformation. Inthis study,we aimed to estimatetsLAI in a mixed forest with GLAS. The refined Levenberg–Marquardt algorithm for Gaussian decomposition was implemented to de- WebbAltimeter Satellites: The Altimeter: The pulse and its return: The pulse is generated by a 13.5 GigaHz oscillator, transmitted at 1000 Hz, and averaged at 1 sec.s The return of the pulse depends on Distance Surface roughness Significant wave height The Altimeter: The waveform: The waveform depends on Travel time: Distance / height Surface …
TC - Ice thickness and water level estimation for ice-covered lakes ...
WebbWaveform retracking for precise sea surface height (SSH) is an important method to improve the quality of satellite altimeter data. Combining the physical explanation of the … WebbSpace-borne radar altimeters measure the radar echo reflected from the surface of the ocean. This is called the ocean waveform. Usually 100 waveforms within 50 … albino leiloes rio preto
Monitoring of hydrological resources in surface water change by ...
WebbRadar altimeter waveform modeled parameter recovery Satellite-borne radar altimeters include waveform sampling gates providing point samples of the transmitted radar pulse … Webb23 mars 2024 · The accuracy and resolution of the marine gravity field derived from multisatellite altimeter data sets mainly depend on the corresponding range precision and spatial distribution. Here, we preliminarily investigate the performance of HY-2A altimeter data by analyzing cross-mission sea surface height discrepancies with SARAL/AltiKa … WebbKeywords: Altimetry; Waveform retracking; Sea surface height 1. Introduction As a very successful technique, satellite altimetry has now been used for some 30 years and … albino lemon