Fine-scale simulation of the seasonal variations of sea ice cover in the Prydz bay, Antarctic

LI Qun; WU Hui-ding; ZHANG Lu

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LI Qun, WU Hui-ding, ZHANG Lu. Fine-scale simulation of the seasonal variations of sea ice cover in the Prydz bay, Antarctic[J]. Haiyang Xuebao, 2011, 33(5): 32-38.

Citation:

LI Qun, WU Hui-ding, ZHANG Lu. Fine-scale simulation of the seasonal variations of sea ice cover in the Prydz bay, Antarctic[J]. Haiyang Xuebao, 2011, 33(5): 32-38.

LI Qun, WU Hui-ding, ZHANG Lu. Fine-scale simulation of the seasonal variations of sea ice cover in the Prydz bay, Antarctic[J]. Haiyang Xuebao, 2011, 33(5): 32-38.

Citation:

LI Qun, WU Hui-ding, ZHANG Lu. Fine-scale simulation of the seasonal variations of sea ice cover in the Prydz bay, Antarctic[J]. Haiyang Xuebao, 2011, 33(5): 32-38.

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Fine-scale simulation of the seasonal variations of sea ice cover in the Prydz bay, Antarctic

1.
Polar Research Institute of China, Shanghai, 200136,China
2.
Polar Research Institute of China, Shanghai, 200136,China;National Marine Environment Forecast Center, Beijing 100081,China
3.
Polar Research Institute of China, Shanghai, 200136,China;The Second Institute of Oceanography, State Oceanic Administration, Hangzhou310012,China

Received Date: 2009-11-24

Abstract

Abstract

Prydz Bay is almost partially covered by sea ice all year. The distribution of sea ice and its annual variation are controlled mainly by the meteorological conditions and ocean currents. To model the seasonal variation of sea ice, a coupled ice-ocean model has been developed. The ocean model based on the MITgcm, and the ice model is based on the viscous-plastic rheology of Hibler and Winton three-layer reformulated thermodynamics. The model domain encompasses Prydz Bay (75°~55°S, 50°~100°E,) and with a grid resolution of (1/6)°×(1/12)° degree (latitude/longitude, average 6 km). Forcing fields are computed from 6-hourly NCEP reanalysis. The main features of the model simulations include an increasing ice cover from March to August, an approximately constant ice cover from August to November and a decreasing ice cover from November to February. In mid-September, polynyas start to develop at three coastal regions, temporal and spatial characteristics of the three polynyas are well reproduced and compare with available satellite data. Thick ice up to 3 m is piled up at the east end of the West Ice Shelf due to westward alongcoast current.
- Prydz Bay,
- sea ice,
- ice-ocean coupled model,
- polynyas

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References(28)

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