Surface diurnal warming in the East China Sea derived from satellite remote sensing
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Process of sea surface diurnal warming has drawn a lot of attention in recent years, but that occurs in shelf seas was rarely addressed. In the present work, surface diurnal warming strength in the East China Sea was calculated by the sea surface temperature (SST) data derived from the MODIS sensors carried by the satellites Aqua and Terra. Due to transit time difference, both the number of valid data and the surface diurnal warming strength computed by the MODIS-Aqua data are relatively larger than Terra. Therefore, the 10-year MODIS-Aqua data from 2005 to 2014 were used to analyze the monthly variability of the surface diurnal warming. Generally, the surface diurnal warming in the East China sea is stronger in summer and autumn but weaker in winter and spring, while it shows different peaks in different regions. Large events with ΔT≥5 K have also been discussed. They were found mainly in coastal area, especially near the Changjiang (Yangtze) River estuary. And there exists a high-incidence period from April to July. Furthermore, the relationship between surface diurnal warming and wind speed was discussed. Larger diurnal warming mainly lies in areas with low wind speed. And its possibility decreases with the increase of wind speed. Events with ΔT≥2.5 K rarely occur when wind speed is over 12 m/s. Study on surface diurnal warming in the East China Sea may help to understand the daily scale air-sea interaction in the shelf seas. A potential application might be in the marine weather forecasts by numerical models. Its impact on the coastal eco-system and the activities of marine organisms can also be pursued.
KeywordModerate-Resolution Imaging Spectroradiometer (MODIS) sea surface temperature (SST) diurnal warming East China Sea
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The authors would like to thank the editor and the reviewers for their remarkable advices, and Mr. FAN Jianlei for proofreading.
- Gentemann C L. 2014. Three way validation of MODIS and AMSR-E sea surface temperatures. Journal of Geophysical Research, 119 (4): 2 583–2 598.Google Scholar
- Hong X Y, Fu Y F, Xian T, Wang Y, Yang Y J, Heng Z W. 2014. Relationships between sea surface wind speed and the diurnal variation of sea surface temperature over the Tropical Ocean. Climatic and Environmental Research, 19 (4): 437–451. (in Chinese with English abstract)Google Scholar
- Li Y L, Han W Q, Shinoda T, Wang C Z, Lien R C, Moum J N, Wang J W. 2013. Effects of the diurnal cycle in solar radiation on the tropical Indian Ocean mixed layer variability during wintertime Madden-Julian Oscillations. Journal of Geophysical Research, 118 (10): 4 945–4 964.Google Scholar
- Lin R, Zhang C Y, Li Y. 2014. Satellite observation of the temporal and spatial variation of sea surface diurnal warming in the South China Sea. Journal of Tropical Oceanography, 33 (2): 17–27. (in Chinese with English abstract)Google Scholar
- Merchant C J, Filipiak M J, Le Borgne P, Roquet H, Autret E, Piollé J F, Lavender S. 2008. Diurnal warm-layer events in the western Mediterranean and European shelf seas. Geophysical Research Letters, 35 (4): L04601.Google Scholar
- Weng X C, Zhang Q L, Zhang Y K, Yang Y L. 1993. Characteristics of the daily variations of the temperature in BoHai Sea, Yellow Sea and East China Sea. Marine Sciences, 17 (6): 49–54. (in Chinese)Google Scholar
- Wentz F J, Meissner T. 2007. Supplement 1 algorithm theoretical basis document for AMSR-E ocean algorithms. NASA, Santa Rosa, CA, USA.Google Scholar
- Zheng J G, Li J L, Yang W B. 2006. Retrieval of SST in the East China Sea with MODIS remote sensing data. Marine Fisheries, 28 (2): 141–146. (in Chinese with English abstract)Google Scholar