Though the ERS satellites are today out of service, the huge quantity of altimetric data collected during the so-called “geodetic missions” covers the globe with sufficient density for many mapping projects. This paper first describes the general principle of ERS altimetric measurement . Then, the paper shows the method adopted to take advantage of ERS high-energy measurements (specular), which...

Change of globe surface height is an important factor to study human living environment. The Geoscience Laser Altimeter System (GLAS) on ICESat is the first laser-ranging instrument for continuous global observations of the Earth. In order to have a comprehensive understanding of full-waveform laser altimeter, this study simulated the operating mode of ICESat and modeled different terrains’ (pl...

This Article is brought to you for free and open access by the Center for Coastal Physical Oceanography at ODU Digital Commons. It has been accepted for inclusion in CCPO Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Repository Citation Ezer, Tal, "Sea Level Rise, Spatially Uneven and Temporally Unsteady: Why the...

The retreat and collapse of Antarctic Peninsula ice shelves in tandem with a regional atmospheric warming has fueled speculation as to how these events may be related. Satellite radar altimeter measurements show that between 1992 and 2001 the Larsen Ice Shelf lowered by up to 0.27 +/- 0.11 meters per year. The lowering is explained by increased summer melt-water and the loss of basal ice throug...

The baseline error is a primary source of the wide-swath altimeter, directly related to cross-track distance, and can lead serious height errors at swath’s outer edge. Cross-calibration using discrepancies with reference data effectively estimate correct error. However, building surface that accurately describes sea observation time necessary use this cross-correction method. dynamic ocean envi...

Incorporating new altimeter data from CryoSat-2 (30 months), Envisat (18 months), and Jason-1 (7 months) satellites into an updated marine gravity field yields significant reduction in noise and improved resolution. Compared to an older gravity field that did not include the new altimeter data, incoherent power is reduced globally by approximately 2.9 dB at 15 km, 1.6 dB at 20 km, and 1.0 dB at...

This paper presents the results of augmenting an INS/GPS navigation system with a barometric altimeter for an autonomous Uninhabited Aerial Vehicle (UAV). The INS/GPS system was designed using a loosely coupled integration architecture that incorporates the GPS navigation solution. The GPS typically has a poor accuracy in the vertical channel due to satellite geometry and atmospheric effects. E...