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제안 방법
- By using SEDM, we detected significant TF: the Subpolar Front (SPF) in the East Sea as open sea front, the Kuroshio Front (KF) in the East China Sea as continental shelf front, the South Sea Coastal Front (SSCF) in the South Sea as coastal front and the Tidal Front (TDF) in the West Sea as tidal front (Fig. 4). TF in the Korean seas are included in classification of ocean fronts by Yanagi (1987) (Fig.
- There have been a lot of research about SST variations in the Korean seas and they contributed to representing conditions of oceanic environment in this region (Gould and Arnone, 2004; Kang, 1984; Park, 1998; Yoon, 2001). In this paper, SST and Thermal Fronts (TF) in the Korean seas were analyzed temporally and spatially from the AHVRR (Advanced Very High Resolution Radiometer) instrument aboard the National Oceanic and Atmospheric Administration (NOAA) series of polar- orbiting environmental satellites, since satellite data are very useful for investigations of long-time variations and wide distributions in SST.
- This paper presented quantitative temporal and spatial variations in SST from EOF analysis based on satellite data, and showed distributions of TF and figured out the correlation of SST and TF. However, satellite data were so difficult to present the precise threshold for detecting TF.
대상 데이터
- The area covers the West Sea, the East China Sea, the South Sea and the East Sea influencing on the Korean seas. SST was validated using serial oceanographic data from the National Fisheries Research and Development Institute (NFRDI, Korea). Serial Oceanographic Data (SOD) of only 3 stations in the West Sea (WS), the South Sea (SS), the East Sea (ES) were compared with the most adjacent SST pixels, because NOAA/AVHRR MCSST by JPL PO.
- 1). The area covers the West Sea, the East China Sea, the South Sea and the East Sea influencing on the Korean seas. SST was validated using serial oceanographic data from the National Fisheries Research and Development Institute (NFRDI, Korea).
- A weekly period consists of 8 days so as to give a 1-day overlap between consecutive weekly files. The data containing mask values for areas of no data, sea ice, and land were provided by JPL PO.DAAC (Jet Propulsion Laboratory, Physical Oceanography Distributed Active Archive Center) (NASA/NOAA, 1998). The MCSST data set was chosen rather than the newer Pathfinder SST data set as it has a complete and continuous temporal coverage for this period.
- The MCSST data set was chosen rather than the newer Pathfinder SST data set as it has a complete and continuous temporal coverage for this period. The study area is 25°~45°N, 117O~142°E (Fig. 1). The area covers the West Sea, the East China Sea, the South Sea and the East Sea influencing on the Korean seas.
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