Arctic sea-ice extent: No record minimum in 2023 or recent years
January 2025
Arctic sea-ice extent reaches its minimum each year in September. On 11 September 2023 the minimum was 4.969 million square kilometers (mill.km2). This was not a record low, which occurred in 2012,...
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Progress and future prospects of decadal prediction and data assimilation: A review
January 2024
Decadal prediction, also known as “near-term climate prediction”, aims to forecast climate changes in the next 1–10 years and is a new focus in the fields of climate prediction and climate change research....
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U-Net: A deep-learning method for improving summer precipitation forecasts in China
July 2023
A deep-learning method named U-Net was applied to improve the skill in forecasting summer (June–August) precipitation for at a one-month lead during the period 1981–2020 in China. The variables of geopotential...
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The ocean response to climate change guides both adaptation and mitigation efforts
July 2022
The ocean's thermal inertia is a major contributor to irreversible ocean changes exceeding time scales that matter to human society. This fact is a challenge to societies as they prepare for the consequences...
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Role of the Greenland Sea ice anomaly in the late-spring drought over Northwest China
January 2025
Drought across Northwest China in late spring has exerted a vital effect on the local climate and agricultural production, and has been alleviated during the past decades. This study explored the influence...
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Deep learning in extracting tropical cyclone intensity and wind radius information from satellite infrared images—A review
July 2023
Tropical cyclones (TCs) seriously endanger human life and the safety of property. Real-time monitoring of TCs has been one of the focal points in meteorological studies. With the development of space...
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State of China's climate in 2023
September 2024
China witnessed a warm and dry climate in 2023. The annual surface air temperature reached a new high of 10.71°C, with the hottest autumn and the second hottest summer since 1961. Meanwhile, the annual...
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3D DBSCAN detection and parameter sensitivity of the 2022 Yangtze river summertime heatwave and drought
July 2023
Spatially and temporally accurate event detection is a precondition for exploring the mechanisms of climate extremes. To achieve this, a classical unsupervised machine learning method, the DBSCAN (Density-Based...
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State of China's climate in 2022
November 2023
China experienced a warm and dry climate in 2022. The average annual surface air temperature (SAT) was 10.51°C, which was the second highest since 1961. The annual average rainfall was 606.1 mm, which...
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Perspectives and challenges on the interaction between tropical cyclone precipitation and the ocean: A review
March 2025
Tropical cyclone–induced heavy precipitation (TCP) can have a detrimental impact on human productivity, causing significant economic losses and even human casualties in coastal countries every year....
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Impacts of lateral boundary conditions from numerical models and data-driven networks on convective-scale ensemble forecasts
March 2025
The impacts of lateral boundary conditions (LBCs) provided by numerical models and data-driven networks on convective-scale ensemble forecasts are investigated in this study. Four experiments are conducted...
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Predicting climate anomalies: A real challenge
January 2022
In recent decades, the damage and economic losses caused by climate change and extreme climate events have been increasing rapidly. Although scientists all over the world have made great efforts to...
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Multi-model ensemble forecasting of 10-m wind speed over eastern China based on machine learning optimization
September 2023
Wind substantially impacts human activity and electricity generation. Thus, accurately forecasting the short-term wind speed is of profound societal and economic significance. Based on 100 weather stations...
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Assessment of global meteorological, hydrological and agricultural drought under future warming based on CMIP6
January 2022
Quantifying the changes and propagation of drought is of great importance for regional eco-environmental safety and water-related disaster management under global warming. In this study, phase 6 of...
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Comparative study on the performance of ConvLSTM and ConvGRU in classification problems—taking early warning of short-duration heavy rainfall as an example
July 2024
Convolutional long short-term memory (ConvLSTM) and convolutional gated recurrent unit (ConvGRU) are two widely adopted deep learning models that combine recurrent mechanisms with convolutional operations...
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Application of the improved dung beetle optimizer, muti-head attention and hybrid deep learning algorithms to groundwater depth prediction in the Ningxia area, China
January 2025
Due to the lack of accurate data and complex parameterization, the prediction of groundwater depth is a challenge for numerical models. Machine learning can effectively solve this issue and has been...
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Climatic drivers of the Canadian wildfire episode in 2023
July 2024
Extreme wildfires broke out in Canada from May 2023 and persisted four months. Tremendous fire emissions posed significant impacts on the air quality in both local and downwind regions. Here, the authors...
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Impacts of the annual cycle of background SST in the tropical Pacific on the phase and amplitude of ENSO
January 2025
The dominant annual cycle of sea surface temperature (SST) in the tropical Pacific exhibits an antisymmetric mode, which explains 83.4% total variance, and serves as a background of El Niño–Southern...
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Enhanced atmospheric phosphorus deposition in Asia and Europe in the past two decades
September 2021
Image, graphical abstract...
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More extreme-heat occurrences related to humidity in China
September 2023
The co-occurrence of day and night compound heat extremes has attracted much attention because of the amplified socioeconomic and human health impacts. Based on ERA5 hourly reanalysis data, this study...
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Prediction of ENSO using multivariable deep learning
July 2023
A novel multivariable prediction system based on a deep learning (DL) algorithm, i.e., the residual neural network and pure observations, was developed to improve the prediction of the El Niño–Southern...
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Skillful bias correction of offshore near-surface wind field forecasting based on a multi-task machine learning model
Available online 6 January 2025
Accurate short-term forecast of offshore wind fields is still challenging for numerical weather prediction models. Based on three years of 48-hour forecast data from the European Centre for Medium-Range...
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Interannual variability of boreal summer intraseasonal oscillation over the northwestern Pacific influenced by the Pacific Meridional Mode
January 2025
During the boreal summer, intraseasonal oscillations exhibit significant interannual variations in intensity over two key regions: the central-western equatorial Pacific (5°S–5°N, 150°E–150°W) and the...
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Visible and shortwave-infrared spectral characteristics of mixed-phase clouds in typical satellite radiometer channels
Available online 25 December 2024
Mixed-phase clouds (MPCs) involve complex microphysical and dynamical processes of cloud formation and dissipation, which are crucial for numerical weather prediction and cloud-climate feedback. However,...
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Significant contributions of the petroleum industry to volatile organic compounds and ozone pollution: Insights from year-long observations in the Yellow River Delta
November 2024
The petroleum industry is a significant source of anthropogenic volatile organic compounds (VOCs), but up to now, its exact impact on urban VOCs and ozone (O3) remains unclear. This study conducted...
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