Xiao-Hai Yan

Learn More
Satellite multi-sensor data is used to derive sensible heat flux (SHF), Bowen ratio (Bo), and thus latent heat flux (LHF) in the tropical Pacific. The temperature differences at the air – sea interface are determined empirically for regions where strong deep air convection is present due to the buoyancy force. The vertical airflow results in surface wind(More)
any ocean surface signatures in synthetic aperture radar (SAR) imagery are characterized by relatively low normalized radar cross section values. Distinguishing among these signatures objectively can be very difficult, especially with only the single-band and single-polarization SAR imagery available from the European Remote Sensing satellites and the(More)
The mean-square slope (MSS) of the sea surface for upwind and crosswind is derived, based on Phillips' equilibrium spectrum and the model herein on gravity–capillary wave spectrum. The MSS integrated from the above two spectra over high-frequency dissipation length (1 mm) fits the optical observations very well. The radar backscatter cross section (RBCS),(More)
Previous studies of the Mediterranean Sea outflow and meddies (O&M) were limited by the poor spatial and temporal resolution of conventional in situ observations as well as the confinement of satellite observations to the ocean's surface. Accordingly, little is known about the formation and transport of meddies and the spatial and temporal variation of O&M(More)
In this study, we examined possible impacts of the Yangtze River Three Gorges Dam (TGD), the world largest hydroelectric construction, on the adjacent marine ecosystem of the East China Sea (ECS) during its initial water storage period. The TGD filled the first one-third of its storage capacity of 39 billion m3 in 10 days in June 2003, causing an abrupt(More)
[1] We study freshwater discharge from the Amazon River into the tropical Atlantic using monthly mean multi-sensor data from September 1997 to July 2003. In order to demonstrate freshwater discharge, we used chlorophyll concentration (Chl_a) and diffuse attenuation coefficient (DAC) measured by the Sea-viewing Wide Field-of-view Sensor (SeaWiFS), and salt(More)
We examine a group of wave-like cloud patterns that occurred along the coast of Texas on a National Oceanic and Atmospheric Administration satellite advanced very high resolution radiometer IR images taken on January 22, 1999. These wave-like cloud patterns were interpreted to be signatures of a coastal lee wave packet on the basis of simultaneous field(More)