TERRAPUB Journal of Oceanography

Journal of Oceanography, Vol. 65 (No. 6), pp. 859-870, 2009

Research and Development of the New Generation Sea Surface Temperature for Open Ocean (NGSST-O) Product and Its Demonstration Operation

Futoki Sakaida1, Hiroshi Kawamura1*, Shin Takahashi2, Teruhisa Shimada1, Yoshimi Kawai3, Kohtaro Hosoda1 and Lei Guan4

1Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
2Information and Mathematical Science Laboratory Inc., Meikei bldg., Ohtsuka, Bunkyo-ku, Tokyo 112-0012, Japan
3Ocean General Circulation Observational Research Program, Institute of Observational Research for Global Change, Independent Administrative Institution, Japan Agency for Marine-Earth Science and Technology, Natsushima-cho, Yokosuka 237-0061, Japan
4Ocean Remote Sensing Institute, Ocean University of Qingdao, Qingdao 266003, China

(Received 23 February 2009; in revised form 31 July 2009; accepted 31 July 2009)

Abstract: Real-time generation and distribution of the New Generation Sea Surface Temperature for Open Ocean (NGSST-O) product began in September 2003 as a demonstration operation of the Global Ocean Data Assimilation Experiment (GODAE) High-Resolution Sea Surface Temperature Pilot Project. Satellite sea surface temperature (SST) observations from infrared radiometers (AVHRR, MODIS) and a microwave radiometer (AMSR-E) are objectively merged to generate the NGSST-O product, which is a quality-controlled, cloud-free, high-spatial-resolution (0.05° gridded), wide-coverage (13-63°N, 116-166°E), daily SST digital map. The NGSST-O demonstration operation system has been developed in cooperation with the Japanese Space Agency (JAXA) and has produced six years of continuous data without gaps. Comparison to in situ SSTs measured by drifting buoys indicates that the root mean-square error of NGSST-O has been kept at approximately 0.9°C.

*Corresponding author E-mail: kamu@ocean.caos.tohoku.ac.jp

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