Temporal and spatial variabilities of Japan Sea surface temperature and atmospheric forcing
Temporal and spatial variabilities of Japan Sea surface temperature and atmospheric forcings
Chu, Peter C.
MetadataShow full item record
In this study, we used the National Centers for Environmental Prediction monthly sea surface temperature (SST) and surface air temperature (SAT) data during 1982–1994 and the National Center for Atmospheric Research surface wind stress curl data during 1982–1989 to investigate the Japan Sea SST temporal and spatial variabilities and their relations to atmospheric forcing. First, we found an asymmetry in the correlation coefficients between SST and wind stress curl, which implies that the SST variability at the scales of the order of one month is largely due to atmospheric forcing. Second, we performed three analyses on the data fields: annual mean, composite analysis to obtain the monthly anomaly relative to the annual mean, and empirical orthogonal function (EOF) analysis on the residue data relative to the summation of the annual mean and the monthly anomaly. The first EOF mode of SST accounts for 59.9% of the variance and represents the Subpolar Front. The temporal variation of the first EOF mode implies that the deep Japan Sea could be cooler in cold seasons (November–April) of 1984–1987. Third, we computed cross-correlation coefficients among various principal components and found that the atmospheric warming/cooling is the key factor causing intra-seasonal and interannual SST variabilities.
Journal of Oceanography, Oceanographic Society of Japan, Vol. 54, pp. 273 to 284. 1998
Showing items related by title, author, creator and subject.
Chen, Y.C.; Chu, Peter C.; Ma, B.B (2002);In this study, we used the Navy's Master Oceanographic Observation Data Set (MOODS), consisting of 116 019 temperature and 9 617 salinity profiles, during 1968-1984 to investigate the temporal and spatial variabilities ...
Inter-annual variability of the acoustic propagation in the Mediterranean Sea identified from a synoptic monthly gridded database as compared with GDEM Kucukosmanoglu, Murat (Monterey, California. Naval Postgraduate School, 2016-12);The primary area of this research is to identify inter-annual variability of acoustic propagation in the Mediterranean Sea through comparison of sound speed profiles obtained from the synoptic monthly gridded World Ocean ...
Twigg, Katherine L. (Monterey, California. Naval Postgraduate School, 2007-09);Surface electromagnetic propagation over the ocean is highly sensitive to near-surface atmospheric variability, particularly the height of the evaporation duct. Seasonal variation in near-surface meterological factors and ...