ST radar observations of atmospheric waves over mountainous areas: a review
نویسندگان
چکیده
منابع مشابه
Observations of Atmospheric Gravity Waves over the Chinese Seas by Spaceborne Synthetic Aperture Radar
On synthetic aperture radar (SAR) images acquired over the ocean often sea surface signatures of atmospheric gravity waves (AGWs) as well as of oceanic internal waves are visible. They often look quite similar and it is not always easy to decide whether the wave-like patterns result from AGWs or from oceanic internal waves. In this paper we present criteria how to discriminate between these two...
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This paper proposes a new technique for Atmospheric Phase Screen (APS) compensation based on a 2D Multiple Regression Model (height-dependent) in Ground-Based (GB) zero-baseline synthetic aperture radar (SAR) acquisitions over mountainous areas with steep topography. For this purpose, polarimetric measurements acquired using the GB-SAR sensor developed at the Universitat Politècnica de Cataluny...
متن کاملPrecipitation estimation over radar gap areas based on satellite and adjacent radar observations
Continuous rainfall measurements from groundbased radars are crucial for monitoring and forecasting heavy rainfall-related events such as floods and landslides. However, complete coverage by ground-based radars is often hampered by terrain blockage and beam-related errors. In this study, we presented a method to fill the radar gap using surrounding radar-estimated precipitation and observations...
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Semidiurnal solar tides in the mid-latitude troposphere are investigated using harmonic analysis of 404 MHz radar profiler wind data obtained from a wide longitude zone in the U.S. The tides are apparent above a 1000-m-deep surface layer and increase in amplitude with height, attaining speeds of 0.5-0.7 rn/s at 5-7 km. Observed wind characteristics agree well with tidal characteristics obtained...
متن کاملDirect Observations of Coherent Backscatter of Radar Waves in Precipitation
In previous work, it was argued that a source of radar coherent scatter occurs in the direction perpendicular to the direction of wave propagation because of the presence of grids of enhanced particle concentrations with spatial periodicities in resonance with the radar wavelength. While convincing, the evidence thus far has been indirect. In this work the authors now present direct observation...
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ژورنال
عنوان ژورنال: Annales Geophysicae
سال: 2000
ISSN: 0992-7689
DOI: 10.1007/s005850000231