China Meteorological Administration

Grid-level source tracing and source variation of sand and dust storm affecting in Beijing

Abstract In recent years, sand and dust storm (SDS) activity in Northern China has shown a notable increasing trend. Fine-scale source apportionment of SDS events affecting Beijing is crucial for understanding the mechanisms behind this increase, facilitating effective desertific...

Contribution of Urbanization and Large‐Scale Warming to Temperature Increase From Pre‐Industrial Revolution Time to Recent Period in Central Beijing City

Abstract The annual mean Surface Air Temperature (SAT) observed during 1757–1762 in central Beijing was 3.1°C lower than that of the nearby Autonomous Weather Stations (AWS) in recent 6 years (2015–2020). The change was much larger than the averaged global warming of the past cen...

Improving Accuracy of Low-Altitude Three-Dimensional Wind Field Reconstruction via Multi-Task Learning

The demand for high-precision 3D wind fields in low-altitude weather services is increasing. To improve reconstruction accuracy, the high precision of 2D near-surface single-level products and the vertical structure of 3D numerical model outputs are combined to establish a mappin...

Global cloud phase monitoring from FY-3G multi-angle polarimetric observations using the new MAPLE-CP framework with independent multi-site lidar validation

Global cloud-top phase monitoring is constrained by an observing gap: passive imagers provide broad coverage but limited vertical phase information, whereas active sensors provide stronger physical constraints only along narrow tracks. Here we develop MAPLE-CP, a Multi-Angle Pola...

Spatiotemporal distribution of precipitation microphysical characteristics over the Tianshan Mountains based on GPM/DPR observations

Using monthly mean Level-3 GPM/DPR products from March 2014 to February 2023, this study systematically investigates the spatial distribution, vertical structure, and microphysical characteristics of stratiform and convective precipitation over the Tianshan Mountains. The results...

A Stepwise Correction Model for Operational Forecasting of Surface Soil Moisture During the Spring Sowing Period

Accurately predicting soil moisture conditions and determining the optimal sowing timing during the spring sowing period play a crucial role in ensuring high and stable grain yields. To address the limitations of existing soil moisture prediction models, i.e., the complexity and...

Why does El Niño develop slowly but decay rapidly

El Niño events typically develop slowly but decay rapidly, yet the processes driving this phase asymmetry remain insufficiently quantified. Here we diagnose the mixed-layer heat budget over integration depths ranging from 30 to 100 m and introduce a depth-resolved diagnostic fram...

The Outer‐Core Wind Structure Effects of Doksuri (2023) on the Heavy Rainfall Event in North China

Abstract While considerable attention has been paid to factors that determine the inner‐core and remote structure of tropical cyclone (TC) rainfall, less attention has been paid to what modulates TC rainfall distribution at intermediate distances. This study investigates the sens...