کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4534473 1626325 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sea surface cooling in the Northern South China Sea observed using Chinese sea-wing underwater glider measurements
ترجمه فارسی عنوان
خنک کننده سطح دریا در دریای شمال دریای چین با استفاده از اندازه گیری های منظره دریایی زیر دریایی چینی دریایی دیده می شود
کلمات کلیدی
خنک کننده سطح دریا پلاتر زیر آب دریایی، عمق لایه مختلط، بودجه حرارتی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
چکیده انگلیسی


• We used Chinese Sea-wing glider measurements to study air–sea interactions.
• We documented cooling of the upper, mixed layer of the ocean in response to heavy winds.
• We observed relatively large entrainment rates caused by deepening of the mixed layer.

Based on 26 days of Chinese Sea-wing underwater glider measurements and satellite microwave data, we documented cooling of the upper mixed layer of the ocean in response to changes in the wind in the Northern South China Sea (NSCS) from September 19, 2014, to October 15, 2014. The Sea-wing underwater glider measured 177 profiles of temperature, salinity, and pressure within a 55 km×55 km area, and reached a depth of 1000 m at a temporal resolution of ∼4 h. The study area experienced two cooling events, Cooling I and Cooling II, according to their timing. During Cooling I, water temperature at 1-m depth (T1) decreased by ∼1.0 °C, and the corresponding satellite-derived surface winds increased locally by 4.2 m/s. During Cooling II, T1 decreased sharply by 1.7 °C within a period of 4 days; sea surface winds increased by 7 m/s and covered the entire NSCS. The corresponding mixed layer depth (MLD) deepened sharply from 30 m to 60 m during Cooling II, and remained steady during Cooling I. We estimated temperature tendencies using a ML model. High resolution Sea-wing underwater glider measurements provided an estimation of MLD migration, allowing us to obtain the temporal entrainment rate of cool sub-thermocline water. Quantitative analysis confirmed that the entrainment rate and latent heat flux were the two major components that regulated cooling of the ML, and that the Ekman advection and sensible heat flux were small.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Deep Sea Research Part I: Oceanographic Research Papers - Volume 105, November 2015, Pages 111–118
نویسندگان
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