Earth and Planetary Observations with Spaceborne Radar System
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In this paper, we address the needs of the FIR space-flight community, providing an introductory-level treatment of the common heterodyne receiver configurations and the state of technology for various front-end components.
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The tantalizing 3-month snapshots from Seasat's altimeter and scatterometer were analyzed and reanalyzed and used to justify follow-on missions that were finally implemented within the last ten years.
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The Alaska SAR Facility (ASF) has been receiving, processing, archiving, and distributing data for Earth scientists and operations since it began receiving data in 1991. Four radar satellites are now being handled. Recent developments have served to increase the level of services of ASF to the Earth science community considerably. These developments are discussed.
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The anomalous warming along the equator is part of the developing El Nino condition and is related to the westerly wind anomalies and the relaxation of the trade-winds over the equatorial Pacific.
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Liu et al.[1998] (hereafter referred as LTH), superimposed wind velocity anomalies observed by the NASA Scatterometer (NSCAT) on the map of sea surface temperature (SST) anomalies observed by the Advanced Very High Resolution Radiometer (AVHRR) in the Pacific at the end of May 1997, and illustrated that the three regions of anomalous warming in the North Pacific Ocean are related to wind anomalies through different mechanisms.
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Knowledge of the global distribution of the vertical velocity of precipitation and cloud constituents is important in estimating latent heat fluxes, and therefore in the study of energy transportation in the atmosphere, the climate and weather.