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http://dx.doi.org/10.7780/kjrs.2018.34.3.7

Calculation and Monthly Characteristics of Satellite-based Heat Flux Over the Ocean Around the Korea Peninsula  

Kim, Jaemin (Department of Atmospheric Sciences, Chungnam National University)
Lee, Yun Gon (Department of Atmospheric Sciences, Chungnam National University)
Park, Jun Dong (National Meteorological Satellite Center, Korea Meteorological Administration)
Sohn, Eun Ha (National Meteorological Satellite Center, Korea Meteorological Administration)
Jang, Jae-Dong (National Meteorological Satellite Center, Korea Meteorological Administration)
Publication Information
Korean Journal of Remote Sensing / v.34, no.3, 2018 , pp. 519-533 More about this Journal
Abstract
The sensible heat flux (SHF)and latent heat flux (LHF) over Korean Peninsula ocean during recent 4 years were calculated using Coupled Ocean-Atmosphere Response Experiment (COARE) 3.5 bulk algorithm and satellite-based atmospheric-ocean variables. Among the four input variables (10-m wind speed; U, sea surface temperature; $T_s$, air temperature; $T_a$, and air humidity; $Q_a$) required for heat flux calculation, Ta and $Q_a$, which are not observed directly by satellites, were estimated from empirical relations developed using satellite-based columnar atmospheric water vapor (W) and $T_s$. The estimated satellite-based $T_a$ and $Q_a$ show high correlation coefficients above 0.96 with the buoy observations. The temporal and spatial variability of monthly ocean heat fluxes were analyzed for the Korean Peninsula ocean. The SHF showed low values of $20W/m^2$ over the entire areas from March to August. Particularly, in July, SHF from the atmosphere to the ocean, which is less than $0W/m^2$, has been shown in some areas. The SHF gradually increased from September and reached the maximum value in December. Similarly, The LHF showed low values of $40W/m^2$ from April to July, but it increased rapidly from autumn and was highest in December. The analysis of monthly characteristics of the meteorological variables affecting the heat fluxes revealed that the variation in differences of temperature and humidity between air and sea modulate the SHF and LHF, respectively. In addition, as the sensitivity of SHF and LHF to U increase in winter, it contributed to the highest values of ocean heat fluxes in this season.
Keywords
Satellite; Sensible heat flux; Latent heat flux; COARE 3.5 bulk algorithm; Korean Peninsula Ocean;
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Times Cited By KSCI : 3  (Citation Analysis)
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