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Heat, water and momentum budgets over the ocean

海洋上空的热量、水和动量预算

基本信息

批准号：
08241111
负责人：
KUBOTA Masahisa
金额：
$ 47.04万
依托单位：
Tokai University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-08241111/
关键词：
shortwave radiation flux longwave radiation flux latent heat flux sensible heat flux momentum flux satellite data DMSP SSMI GMS 風応力エル・ニ-ニュ海面高度エル・ニ-ニョ

项目摘要

Accurate ocean surface fluxes with high resolution are critical for understanding a mechanism of global climate. However, it is difficult to derive those fluxes by using ocean observation data because the number of ocean observation data is extremely small and the distribution is inhomogeneous. On the other hand, satellite data are characterized by the high density, the high resolution and the homogeneity. Therefore, it can be considered that we obtain accurate ocean surface fluxes by using satellite data. Recently we constructed ocean surface data sets mainly using satellite data. The data set is named by Japanese Ocean Flux data sets with Use of Remote sensing Observations (J-OFURO). The data set includes shortwave radiation, longwave radiation, latent heat flux, sensible heat flux, and momentum flux etc. Moreover, sea surface dynamic topography data are included in the data set. Radiation data sets covers western Pacific and eastern Indian Ocean because we use a Japanese geostationally satellite (GMS) to estimate radiation fluxes. On the other hand, turbulent heat fluxes are globally estimated. The constructed data sets are used and shows the effectiveness for many scientific studies.

精确的高分辨率海洋表面通量对于理解全球气候机制至关重要。然而，由于海洋观测资料数量极少且分布不均匀，很难利用海洋观测资料推导出这些通量。另一方面，卫星数据具有高密度、高分辨率和均匀性的特点。因此，我们可以认为利用卫星资料获得了准确的海洋表面通量。近年来，我们主要利用卫星数据构建海洋表面数据集。该数据集以日本利用遥感观测的海洋通量数据集（J-OFURO）命名。数据集包括短波辐射、长波辐射、潜热通量、感热通量、动量通量等。此外，数据集中还包括海面动力地形数据。辐射数据集涵盖西太平洋和东印度洋，因为我们使用日本地球静止卫星（GMS）来估计辐射通量。另一方面，湍流热通量是全球估计的。构建的数据集被用于许多科学研究，并显示出有效性。