| Name | Tohoku University high-resolution global analytical sea surface temperature (SST) dataset |
| Abbreviation | MSST |
| Metadata Identifier | MSST20230727075448-DIAS20221121113753-en |
| Name | Hiromichi Igarashi |
|---|---|
| Organization | JAMSTEC/DrC |
| Address | 3173-25,Showa-machi, Kanazawa-ku, Yokohama, Kanagawa, 236-0001, Japan |
| higarashi@jamstec.go.jp |
| Name | Hiroshi Kawamura |
|---|---|
| Organization | Center for Atmospheric and Oceanic Studies Graduate School of Science, Tohoku University |
| kamu@ocean.caos.tohoku.ac.jp |
A research group mainly from Tohoku University have made a unprecedented high-resolution global analytical sea surface temperature (SST) dataset from January 1990 by merging various satellite data. They are daily and 0.1grid (about 10 km) data. Conventional analytical SST data for climate research were weekly or monthly 1タ gridded (about 100 km), and it was very difficult to detect eddies in the ocean and the current axis of Kuroshio, for example. This new high-resolution SST has a much finer grid size, and we have also attempted to suppress spatial smoothing when producing this SST. This enables us to detect small-scale variations easily and to analyze the heat budget and dynamics of the ocean and atmosphere. Heat transport due to oceanic eddies or Kuroshio, and heat exchange between the ocean and atmosphere are very important phenomena that control the climate on earth. Our SST data will enable us to understand the basin- or globe-scale heat budget and water circulation better than before. Hence they may also serve to the improvement of the prediction accuracy of the global warming using high-resolution global climate models running on the Earth Simulator. The group has developed a technique to merge different kinds of satellite SST data with a high resolution using optimum interpolation. It is one of the new features that the SST observed with microwave satellite sensors, which have enabled the observation through clouds, is utilized in addition to the thermal infrared SST that have been used widely for a long time. The microwave sensors to observe the globe have been developed, produced, and operated by the Japan Aerospace Exploration Agency (JAXA). The new SST data have been produced on a developed computer system which enables us to process the large-amount global long-term SST data with high speed.
| North bound latitude | 85 |
| West bound longitude | -180 |
| Eastbound longitude | 180 |
| South bound latitude | -85 |
| Dimension Name | Dimension Size (slice number of the dimension) | Resolution Unit |
|---|---|---|
| row | 3600 | 0.1 (deg) |
| column | 1700 | 0.1 (deg) |
| Keyword Type | Keyword | Keyword thesaurus Name |
|---|---|---|
| theme | ocean, satellite, OISST, Kyosei-7 |
These global high-resolution analytical SST data have been produced by the Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University, and sponsored by the Category 7 of MEXT (Ministry of Education, Culture, Sports, Science and Technology) RR2002 Project for Sustainable Coexistence of Humans, Nature and the Earth.
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