Nell’iperspazio con Rocket: il Framework Web di Rust!
TU4.T10.1.pptx
1. SAR-derived Sea Surface Winds in the Seas around Korea and Air-Sea Interaction Kyung-AePark and Tae-Sung Kim Department of Earth Science Education / Research Institute of Oceanography, Seoul National University, KOREA SEOUL(Satellite Earth/Ocean Sciences & EdUcationLab.)
23. Understanding air-sea interactions through wind field modification over a variety of complex oceanographic phenomena, frequently apparent along the Korean coast.
26. Estimation of Wind Direction Wind measurement data (in situ, other satellite sensor data, reanalysis data, etc) ECMWF Interim Reanalysis Winds Interpolation 2 1 3 Incidence Angle Wind Direction Normalized Radar Cross Section(σ0) Algorithms L-band HH GMF Distribution of interpolated near surface wind vectors from ECMWF reanalysis data on 18 Jul 2007 Wind Speed
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31. Backscattering Coefficient (σ0) (a) DN (b) σ0 Yellow Sea Dark and Bright Stripe- and Band-like Features Irregularity Animation of DN and NRCS values All images reveal the same issues Also found on Land !
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33. Careful landuses are neededMaps of (a) NRCS(σ0) and (b) Gradient values of ALOS PALSAR ScanSAR (2007. 07. 18 02:15:15 (UTC))
34. Wind Field from ALOS PALSAR Observing Direction Low Incidence Angle Images of (a) NRCS and (b) retrieved wind field off the east coast of Korea from ALOS PALSAR image (2007/08/11 02:56:56 (UTC))
51. Detailed patial structure of wind speeds(a) Location of SIR-C SAR image on the SST map and (b) distribution of wind field off the east coast of Korea from SIR-C SAR data by using CMOD4 algorithm (m/s).
61. Determination of the frequency for band-pass filtering Clear image after noise reduction
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63. Ships and Small scale oceanic features still remainedSubimagewith band-like noises, (b) the mean image of extracted noises from the spectrum, and (c) the filtered ScanSARsubimage
70. Schematic of air flow over coastal ranges cold-air outbreak in winter Role of Wind Field has been paid no attention Beardsley et al.(2000), The mountain ranges along the North Korean and Russian coasts reach heights of 1000m or higher, and are separated by an orographic gap at Vladivostok The wintertime synoptic weather pattern is dominated by the Siberian high, which forces northerly or northwesterly winds(cold-air outbreak) from the Asian continent over the JES 36
73. Hypothesis on air-sea-land interaction Fig. (a) Land topography,and (b) mean of Ekman pumping. Contour overlaid in (a) is mean of EKP. Contours with zero EKP corresponds to the enter of strong winds along the wind direction, which seem to be affected by intensified winds through shallow trough of land orography. 37
74. Evidence of Orography-Induced Ekman Pumping Structure VladivostokGap Fig. Land topography, wind speed, and EKP along the Russian and North Korean coast. Zero value of EKP corresponds to the center of strong winds along the wind direction, which is produced by intensified winds through a shallow trough of land orography. 38
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77. QuikSCAT winds : Similar to SAR Wind, low resolution No observation along the coast.