نتایج جستجو برای: scale altimeter

تعداد نتایج: 578305  

2016
Tal Ezer

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...

2015
John M. Brozena JOHN M. BROZENA MARY F. PETERS

Journal: :Science 2003
Andrew Shepherd Duncan Wingham Tony Payne Pedro Skvarca

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...

Journal: :Remote Sensing 2023

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...

2003
J. H. Kim

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...

Journal: :Science 1979
R S Mather C Rizos R Coleman

The Geodynamics Experimental Ocean Satellite (GEOS-3) radar altimeter has provided some information on the dynamic sea-surface topography of the global oceans. Regional studies of the densely surveyed Sargasso Sea indicate that the average nontidal variability of the oceans is +/- 28 centimeters. Sea-surface highs and lows determined from GEOS-3 altimetry correlate favorably with eddy structure...

2007
J. J. Martinez A. Ortiz Castellon M. Martinez Garcia J. Talaya G. Rodriguez Velasco B. Perez E. Alvarez

Three Begur Cape experiences on radar altimeter calibration and marine geoid mapping made on 1999, 2000 and 2002 are overviewed. The marine geoid has been used to relate the coastal tide gauge data from l’Estartit harbour to off-shore altimetric data. The necessity to validate and calibrate the satellite’s altimeter due to increasing needs in accuracy and long term integrity implies establishin...

2007
Euiho Kim Uri Peled Todd Walter

The FAA currently uses its Automated Flight Inspection System (AFIS) to check the accuracy of Instrument Landing Systems (ILS) and other navaids. It is desirable to measure the deviations of the ILS to within 0.015 degree accuracy. Therefore, a flight inspection system requires a high level of accuracy in determining position which is computed by a Flight Inspection Truth System (FITS). The AFI...

Journal: :Journal of Space Weather and Space Climate 2023

Solar radio bursts have been associated with a number of disruptions in avionic systems. The objective this work is to develop solar burst interference thresholds which account for the technical specifications aviation-related instrumentation, instrument operating frequencies as well industry stipulated error tolerances. are suggested be potentially hazardous when exceeding these calculated thr...

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