Evaluation of AMSR-E SST in the Southern Ocean using drifting buoy data

LI Ming; LIU Ji-ping; ZHANG Zhan-hai; ZHANG Lin

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LI Ming, LIU Ji-ping, ZHANG Zhan-hai, ZHANG Lin. Evaluation of AMSR-E SST in the Southern Ocean using drifting buoy data[J]. Haiyang Xuebao, 2010, 32(6): 47-55.

Citation:

LI Ming, LIU Ji-ping, ZHANG Zhan-hai, ZHANG Lin. Evaluation of AMSR-E SST in the Southern Ocean using drifting buoy data[J]. Haiyang Xuebao, 2010, 32(6): 47-55.

LI Ming, LIU Ji-ping, ZHANG Zhan-hai, ZHANG Lin. Evaluation of AMSR-E SST in the Southern Ocean using drifting buoy data[J]. Haiyang Xuebao, 2010, 32(6): 47-55.

Citation:

LI Ming, LIU Ji-ping, ZHANG Zhan-hai, ZHANG Lin. Evaluation of AMSR-E SST in the Southern Ocean using drifting buoy data[J]. Haiyang Xuebao, 2010, 32(6): 47-55.

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Evaluation of AMSR-E SST in the Southern Ocean using drifting buoy data

1.
National Marine Environmental Forecasting Center, Beijing 100081, China
2.
State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
3.
Polar Research Institute of China, Shanghai 200136, China

Received Date: 2010-04-10
Rev Recd Date: 2010-08-04

Abstract

Abstract

This study evaluated the microwave remote sensing SST derived from AMSR-E (Advanced Microwave Scanning Radiometer for the Earth Observing System) using AOML (Atlantic Oceanographical and Meteorological Laboratory) SVP drifting buoy data, focusing on the Southern Ocean (south of 30°S). Compared to the buoy data, AMSR-E has a mean bias of -0.01 ℃ (0.004 ℃ for summer and -0.06 ℃ for winter) and standard deviation (STD) of 0.70 ℃(0.64 ℃ for summer, and 0.75 ℃ for winter). The biases of AMSR-E SST (ΔT) are influenced by ocean surface velocity, particularly decreasing with the increasing velocity in summer. The drogued data shows similar results to that of all data, but the undrogued data is more significantly influenced by the velocity. Also, the biases of AMSR-E SST are influenced by water vapor, particularly decreasing with the increasing water vapor in winter. Further analyses of tracing four buoys crossing or following the Antarctic circumpolar current suggest that the SST bias is influenced by the ocean current systems. The SST uncertainty is much larger than that of overall circumstances.
- sea surface temperature,
- AMSR-E SST,
- SVP drifters,
- Southern Ocean

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References(14)

References

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