全球表面实况分析产品

全球表面实况分析产品（V1.0）是基于全球大气实况分析系统输出的短期预报值作为背景场，利用集合卡尔曼滤波同化算法，融合全球地面（含中国国家站地面）、机场、船舶、浮标等常规观测资料和METOP/ASCAT卫星反演洋面风产品，计算得到的全球同化分析产品，产品空间分辨率10km，时间分辨率3小时。

The Global Surface Real-Time Analysis Product (Version 1.0) is a global assimilated analysis product developed using the short-term forecast outputs from the Global Atmospheric Real-Time Analysis System as its background field. It is generated via the ensemble Kalman filter (EnKF) data assimilation algorithm by integrating conventional observational data including global surface stations (with national surface stations in China), airport, ship, and buoy observations, as well as sea surface wind products retrieved by METOP/ASCAT satellites. The product has a spatial resolution of 10 km and a temporal resolution of 3 hours.

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背景与挑战

背景概述

全球表面实况分析产品（V1.0）是一款高分辨率全球地表气象分析数据集，采用集合卡尔曼滤波同化算法，融合全球地面站、机场、船舶、浮标及METOP/ASCAT卫星反演洋面风等多源观测数据，生成空间分辨率10公里、时间分辨率3小时的同化分析场。该产品能够提供连续、可靠的全球表面气象实况信息，适用于气象监测、预警及科学研究等领域。