New research reveals that during the early Eocene, the rain belt's seasonal shifts weakened dramatically due to extreme warming and a reduced Intertropical Convergence Zone (ITCZ). This ancient change could offer critical warnings about the impact of modern global warming.
Fine particulate matter (PM2.5) and ground-level ozone (O3) are major pollutants degrading China's urban air quality, with serious human health effects. Coordinating their control is central to improving air quality, according to scientists.
A new model has combined data from unmanned aerial vehicles and Beidou sounding systems to improve typhoon forecasting capabilities. The results show that the forecast landing point of Typhoon Haikui was significantly closer to reality.
The Institute of Atmospheric Physics at the Chinese Academy of Sciences' two English journals, Advances in Atmospheric Sciences and Advances in Oceanic and Atmospheric Science Letters, achieved notable rankings for their international reach in the 2024 China English-Language Scientific Journal Overseas Media Influence Report. AAS ranke...
A new study reveals how decadal-scale climate fluctuations impact tropical cyclone frequency in response to ENSO events. The FGOALS-g3 large ensemble model shows improved performance in capturing the ENSO-affected cyclone activity, highlighting the importance of accounting for decadal variability.
Researchers developed a statistical seasonal forecasting model to predict typhoons landing on Taiwan Island by mid-May, achieving an accuracy rate of 98% for the period 1979-2022. The model utilizes four pre-typhoon-season environmental predictors and will benefit disaster prevention and mitigation efforts.
A new study published in Geophysical Research Letters refines permafrost loss estimates for High Mountain Asia (HMA) under future warming. By adjusting climate sensitivity values, the researchers found that HMA permafrost area could shrink by 37% to 64% under mid- and low-emission scenarios by 2081-2100.
A collaborative project between the UK and China aims to develop actionable climate information for the tea industry, informing adaptation measures and decision-making. The Tea-CUP project focuses on Yunnan Province, where climate variability affects tea yield and quality, and has broader implications for sustainable development.
A new study reveals that models accurately capturing Indian summer monsoon rainfall can simulate the CGT pattern better. The research highlights the crucial link between monsoon rainfall and wave structure over west-central Asia, which is essential for improving climate model predictions.
A recent study found that climate factors play a more dominant role in determining wood density for tree species than soil characteristics, while both factors equally influence shrub species. The research provides new insights into vegetation responses to environmental factors, with implications for improving ecosystem predictions.
Researchers have developed a new satellite data fusion method to enhance the early detection of convective clouds. By combining high-resolution texture information with multispectral data, forecasters can identify smaller-scale convective clouds earlier and improve the precision of predicting where these clouds will form and intensify.
A recent study published in Science Advances found that the ocean's heat storage efficiency during the last deglaciation was substantially enhanced to ≥1 by strong warming in intermediate-depth waters. This significant increase resolves a long-standing paradox in the conventional view of climate system dynamics.
A recent study reveals that tropical cyclones with a critical inner-core size are more likely to intensify rapidly. The researchers found that this nonlinear relationship is driven by the balance between angular momentum transport and horizontal diffusion.
A recent study found that urban trees provide increased cooling benefits on hotter summer days, offering a promising solution to the growing urban heat island effect. However, research suggests that this benefit may be limited in extreme heat conditions, where trees' efficiency is reduced at high temperatures.
The Tibetan Plateau plays a crucial role in atmospheric synergy between westerly and Asian monsoon systems. Research efforts, such as the Second Tibetan Plateau Scientific and Research program, have improved understanding of water vapor changes and land–atmosphere interactions.
A new study reveals that soil moisture played a significant role in amplifying the intensity of the heatwave, particularly in high-altitude areas. Atmospheric circulation also contributed to the extreme temperatures, highlighting the need for further research on climate effects of heatwaves in unexpected places.
A recent study identifies key weather patterns contributing to typhoon clustering, including the Monsoon Trough pattern and other atmospheric factors. This clustering of tropical cyclones can significantly increase disaster risks and cause extensive damage.
A recent study found that human-made secondary organic aerosols (SOAs) contribute up to 53% of total SOA levels today, a significant increase from preindustrial times. This dramatic change is crucial to understanding the environmental impact of human activities on air quality and climate change.
Research finds that weather patterns play a crucial role in triggering complex air pollution in Dongying, China. The study identifies specific synoptic patterns that contribute to the formation of fine particulate matter and ozone pollution, highlighting the need for targeted strategies to mitigate these issues.
A new study reveals that climate models exhibit pronounced biases in simulating the global monsoon, with the dry and wet biases found in earlier models persisting. However, CMIP6 models show significant improvements over CMIP5, attributed to reduced dry biases and better representation of energy transport.
The region experienced extreme heatwaves, regional heavy rainfall and flooding, overcast rain, and cold spells. Precipitation was significantly different between 2022 and 2023, with droughts followed by floods.
Researchers studied mesoscale eddy observations to estimate theoretical predictability limits of eddy trajectories. Long-lived eddies have higher predictability limits, while short-lived ones are less predictable. The study also introduced a complexity index to elucidate OME track complexity.
A recent study found that atmospheric rivers contribute to over 36% of the increase in Arctic summer water vapor trends since 1979. This contribution is significant in areas where AR activity has increased, such as western Greenland and eastern Siberia.
A new reconstruction of past Arctic sea ice coverage shows surprisingly low levels in the 1940s, a period characterized by strong warming, before the 1950s. This finding suggests that anthropogenic forcing played a significant role in shaping climate variability during this time.
A recent study published in Geophysical Research Letters found that most large flood events and potential flood peak periods in East Asia are dominated by mesoscale convective systems (MCS). The research revealed that among major floods from 2000 to 2021, 91% were related to MCS.
The Tibetan Plateau's permafrost active layer has shown significant interdecadal changes since 2000, with a decrease in overall thickness and regional inconsistencies. Environmental factors such as temperature and precipitation significantly impact the active layer's transformation under global warming.
Researchers found that wildfire-induced aerosols can lead to both ozone depletion and increase at different atmospheric layers, with the middle stratosphere experiencing an increase in ozone concentrations. This complex interplay buffers approximately 40% of ozone depletion observed in the lower stratosphere.
A recent analysis suggests that the optimal fingerprinting method (OFM) can be improved to enhance its usefulness and accuracy in assessing climate tipping points. The study highlights the limitations of current methods and proposes a new approach that combines theoretical and dynamical reasoning.
Penetrative turbulence plays a crucial role in climate and weather prediction, influencing oceanic life and ecosystem health. The recent review article examines scaling laws and transport mechanisms of penetrative convection, offering insights into its implications for climate modeling.
China's 2023 annual temperature was the highest on record, with a warm-dry climate featuring record-breaking heatwaves and severe droughts. The country experienced heavy precipitation events and floods despite lower overall rainfall and fewer rainy days.
A new study by NUIST's team constructs a coupled background error covariance that considers the interaction between land and atmosphere variables. The results show strong correlations between surface temperature errors and atmospheric temperature, with varying relationships at different altitudes.
The Amazon rainforest, a crucial carbon sink, may experience reduced precipitation due to increased CO2 concentrations, leading to higher tree mortality rates and forest shrinkage. A recent study found that rainy season precipitation in the Amazon is irreversible under a CO2 removal scenario, putting the region at risk of drought.
A new study found that using a moving baseline reduced the perceived magnitude of the 2022 Yangtze River Valley heatwave. The research suggests that continuous adaptation to warming could mitigate future risks, but reducing greenhouse gas emissions is still crucial.
Researchers observed extreme cold temperatures across a broad region of Antarctica in late winter 2023, with record low temperatures recorded at multiple locations. The study highlights the importance of understanding atmospheric environments that lead to extreme cold temperatures and their impact on Antarctic operations.
The study explores spatiotemporal and convective characteristics of cirrus clouds over the SCS, highlighting their impact on regional radiative climate. Convective and non-convective cirrus clouds show distinct properties, such as ice water content and vertical distributions.
Researchers have discovered significant interactions between sea surface temperature variations in Western Australia and the western-central tropical Pacific, driven by external forces since 1985. Warm SST anomalies in the tropical Indian Ocean drive decadal climate linkages with the two regions.
A recent study using satellite remote sensing data reveals that Asian forests have shown excellent resilience to disturbances from climate change and human activities. Despite 20% of forests experiencing disturbances between 2000 and 2022, 95% recovered within a few decades.
Researchers studied surface energy flux patterns on Mount Everest's north and south slopes to understand land-atmosphere interactions. The study found differences in sensible and latent heat fluxes between the two slopes, with varying effects of altitude and vegetation.
A recent study reveals that reducing primary emissions has a significant impact on decreasing fine particles and ozone levels in China's North China Plain region. The research, published in Atmospheric and Oceanic Science Letters, found that controlling anthropogenic emissions can effectively mitigate secondary pollution during summer.
Researchers applied machine learning models to predict groundwater depth in Ningxia, China, achieving better performance than traditional methods. The hybrid models outperformed multiple linear regression, and the DBO algorithm further enhanced prediction accuracy.
A study published by the Institute of Atmospheric Physics predicts significant economic impacts on provinces like Hunan, Jiangxi, and Guangdong due to increased heavy precipitation and droughts. The region's GDP is expected to be hardest hit under certain climate change scenarios, emphasizing the need for adaptation strategies.
A recent study at the Beijing Observatory has homogenized daily temperature data for over a century, correcting biases and deriving more reliable conclusions about climate change. The study reveals a significant warming trend of 0.199℃ per decade, with winter showing the most pronounced increase.
Researchers employed an advanced ocean data assimilation scheme to predict subsurface temperature anomalies, improving forecasting for marine heatwaves like the Blob. The new approach leveraged a broader range of oceanic observations, enhancing accuracy in the lower ocean layer.
A recent study led by Prof. Yele Sun found that gym air contains a higher percentage of organic aerosols compared to outdoor air, with 50% of indoor air consisting of these particles. The study also identified two types of organic aerosols that can be inhaled during exercise, potentially impacting health.
A new data center aims to tackle emerging air quality issues in China, providing a comprehensive platform for scientific research and collaboration. The China Air Pollution Data Center (CAPDC) offers high-quality datasets and tools to help combat ozone pollution and other complexities.
A recent study published in the Journal of Hydrology reveals significant changes in bioclimatic environments across China's dry–wet transition zones due to climate change. The research identifies these zones as hotspots of ecosystem vulnerability, emphasizing the need for targeted impact assessment and adaptation studies.
Researchers advocate for a collaborative approach between AI and physics in climate modeling to impose physical constraints and achieve global optimality. By integrating AI's spatial prowess with physics' foundational principles, they aim to create a truly learnable climate model.
The year 2023 saw unprecedented extreme weather events globally, with a record-breaking temperature increase of 1.45°C above pre-industrial times. Emerging features include earlier onset of heatwaves and increased simultaneous events in different parts of the world.
A recent machine learning study has discovered a surprising link between wildfires in the western United States and hailstorms in the central US. The research, led by Jiwen Fan, used ML algorithms to analyze vast datasets spanning two decades, predicting hail storms with remarkable accuracy.
Researchers found isolated deep convection (IDCs) mainly concentrate in the southern Tibetan Plateau, with an average of 54.2 IDCs per rainy season. IDCs contribute up to 70% of extreme precipitation in July and August, highlighting their significant role in regional weather patterns.