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Han, Inwoo; Kang, Yoon-Koo

doi:10.1023/a:1025563810201

Cited by 18 publications

(3 citation statements)

References 11 publications

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“…Climatologically, the EJS loses heat into the atmosphere during JFM (Figure 6A). However, a long-term energy balance indicates that surface heat loss into the atmosphere is balanced by the heat supply of the ocean current, such as the TWC (Hirose et al, 1996;Han and Kang, 2003). During a positive (negative) AO phase, anomalous heat gain (loss) is observed over the northeastern part of the EJS (Figures 6B, C).…”

Section: Physical Mechanisms On the Ao-sst Relationship In The East/j...mentioning

confidence: 99%

Wintertime sea surface temperature variability modulated by Arctic Oscillation in the northwestern part of the East/Japan Sea and its relationship with marine heatwaves

et al. 2023

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The northwestern part of the East/Japan Sea (EJS) is a region with large sea surface temperature (SST) variability and is known as a hotspot of marine heatwaves (MHW) stress for marine environments that peaked in boreal winter (January-February-March). This could have profound impacts on the marine ecosystems over the EJS. Here, we used a set of high-resolution satellite and reanalysis products to systematically analyze the spatiotemporal SST variations and examine their linkage to a large-scale mode of climate variability, such as the Arctic Oscillation (AO). The results show that AO-related wind forcing modulates the SST variability over the EJS via the oceanic dynamic adjustment processes. In particular, the abnormally warm SSTs in the northwestern part of the EJS are driven by the anomalous anticyclonic eddy-like circulation and Ekman downwelling during a positive AO phase. This physical linkage between a positive AO and the abnormally warm SST could be conducive to MHW occurrences in the EJS as in the extremely positive AO event during the winter of 2020. These results have implications that the MHW occurrences in the EJS could be amplified by natural climate variability along with long-term SST warming.

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Section: Physical Mechanisms On the Ao-sst Relationship In The East/j...mentioning

confidence: 99%

Wintertime sea surface temperature variability modulated by Arctic Oscillation in the northwestern part of the East/Japan Sea and its relationship with marine heatwaves

et al. 2023

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“…Casey and Adamec (2002) studied the relationship between SST and SSH variability over the North Pacific and showed that some of the Kuroshio transport-related changes are due to variations in the subtropical Pacific SSH. Han and Kang (2003) estimated how much heat is transported into the EJS through the Korea Strait. Using historical surface current data from 1999 -1993 (Japan Oceanographic Data Center), they estimated heat supplied by the current (HSC) in the EJS.…”

Section: Discussionmentioning

confidence: 99%

A Temporal Multiscale Analysis of the Waters off the East Coast of South Korea over the Past Four Decades

Jo¹,

Breaker²,

Tseng³

et al. 2014

Terr. Atmos. Ocean. Sci.

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We address the trends in water temperature variability to understand the local global warming effects through different time scales using daily sea surface temperature (SST) measurements from 1966 -2004. The abrupt SST changes off of the east coast of Korea are related to similar changes observed in the North Pacific. Seasonal water temperatures have increased by at least a factor of two or more in winter than in summer. While SSTs on annual timescales have increased significantly, SSTs on interannual timescales have decreased slightly at all stations. The anomalies in SST decadal time scales reveal maxima in temperature occurring in the mid-to-late 1970's, circa 1990 and circa 2000. These maxima coincide with major peaks in the North Pacific Gyre Oscillation (NPGO) with a lag of 4 -7 months. The most significant warming appears in the long-term SST trends at each station where it approaches +0.05°C yr -1 . Overall, the SST off the east coast of Korea has increased at rates that are far greater than what is reported in many other marginal seas.

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“…The TWC passing through the KTS provides heat and salt fluxes to the environment of the EJS (e.g., Isobe et al, 1994;Katoh, 1994;Moon et al, 2009). Hirose et al (1996) and Han and Kang (2003) demonstrated that heat transport by the TWC is responsible for ocean surface to atmosphere heat loss in the EJS. The TWC also affects upper-ocean hydrography in the EJS by acting as a main heat source (Chang et al, 2004;Yoon and Kim, 2009).…”

Section: Introductionmentioning

confidence: 99%

Non-linear long-term trend in volume transport through the Korea/Tsushima Strait

Moon,

Jang,

Kim

et al. 2023

Front. Mar. Sci.

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Based on the relation between volume transport and sea level difference across the Korea/Tsushima Strait (KTS), in this study, we estimated the volume transport of the Tsushima Warm Current over the past four decades and examined its long-term trend using an ensemble empirical model decomposition (EEMD) method. The estimated geostrophic transports showed very good agreement with those measured by acoustic Doppler current profiler and those estimated from satellite altimetry-based sea level data. This corroborates the reliability of the long-term estimation. EEMD analysis revealed an acceleration in volume transport in the KTS, with a persistent increase in the trend rate occurring after the mid-1980s. Further analyses indicate that the trend shift in the KTS closely coincided with an upper-ocean warming trend in the East/Japan Sea (EJS) after the mid-1980s. Analyzing large-scale wind patterns suggests that long-term trends of wind stress curls over the North Pacific are likely a key driver of the trend shifts in the inflow through the KTS and the upper-ocean warming in the EJS over the past four decades.

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Untitled

Cited by 18 publications

References 11 publications

Wintertime sea surface temperature variability modulated by Arctic Oscillation in the northwestern part of the East/Japan Sea and its relationship with marine heatwaves

Wintertime sea surface temperature variability modulated by Arctic Oscillation in the northwestern part of the East/Japan Sea and its relationship with marine heatwaves

A Temporal Multiscale Analysis of the Waters off the East Coast of South Korea over the Past Four Decades

Non-linear long-term trend in volume transport through the Korea/Tsushima Strait

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