1993年1月-2021年9月海洋表面流实时分析数据集

"该数据集中的数据获取自Nasa的研制发布的OSCAR_L4_OC_third-deg数据集，包括1993年1月-2021年9月逐5天1/3°分辨率流场的nc数据，将nc文件存储的经纬度和U、V按时间序列拆分，转换为逐5天的时间序列数据，并转为TIF格式。数据总体量为7.43G。
OSCAR（Ocean Surface Current Analysis Real-time）包含近地表洋流估计，使用准线性和稳态流动动量方程得出。水平速度由海面高度、海面矢量风和海面温度直接估算。这些数据是从各种卫星和现场仪器收集的。该模型公式结合了地转、Ekman 和 Stommel 剪切动力学，以及来自表面浮力梯度的补充项。数据位于 1/3 度网格上，分辨率为 5 天。OSCAR 由地球空间研究 (ESR) https://www.esr.org/research/oscar/oscar-surface-currents/ 生成。"

The data in this dataset is sourced from the OSCAR_L4_OC_third-deg dataset developed and released by NASA. It includes netCDF (nc) format data of 1/3° resolution ocean current fields at 5-day intervals from January 1993 to September 2021. The latitude/longitude coordinates, U and V velocity components stored in the original nc files are split along the time dimension, converted into 5-day interval time-series data, and then transformed into TIFF format. The total size of the dataset is 7.43 GB.

OSCAR (Ocean Surface Current Analysis Real-time) provides near-surface ocean current estimates derived using quasi-linear and steady-state flow momentum equations. Horizontal velocities are directly estimated from sea surface height, sea surface vector winds, and sea surface temperature. These data are collected from various satellites and in-situ instruments. The model formulation combines geostrophic, Ekman, and Stommel shear dynamics, along with supplementary terms derived from surface buoyancy gradients. The data are gridded at a 1/3-degree spatial resolution with a 5-day temporal resolution. OSCAR is produced by Earth Space Research (ESR) at https://www.esr.org/research/oscar/oscar-surface-currents/.

搜集汇总

背景与挑战

背景概述

该数据集是一个全球范围的海洋表面流实时分析产品，覆盖时间从1993年1月到2021年9月，具有1/3°的空间分辨率和5天的时间分辨率。数据来源于NASA的OSCAR数据集，通过处理海面高度、风场和温度等多源卫星和现场观测数据，结合地球物理模型估算得出，并以TIF格式提供，总数据量为7.43G，适用于海洋科学研究。