Researchers used in situ observations and simulations to understand the composition and sources of aerosols in the Asian Tropopause Aerosol Layer (ATAL). They found that part of the aerosols were transported from the Earth surface and upper troposphere, influencing the ATAL's formation.
A 50-year drying period in north central India reversed after 1999. Natural variability, including the Interdecadal Pacific Oscillation (IPO), contributed to changes in rainfall. The study supports robust handling of IPO in climate models for accurate projections.
Ozone pollution in China's most populated and industrialized city clusters poses a great challenge due to diverse precursors. Long-term research is necessary to accurately determine main sources of ozone and inform effective control strategies.
Recent research suggests that nitrogen in permafrost soils could be a major contributor to climate change, with potentially significant consequences. Scientists are studying the decomposition of organic matter and its impact on nitrogen availability, which could lead to high N2O emissions.
China experienced a warm year in 2019, with mean temperature 0.79°C above normal and annual rainfall 2.5% above normal. Disaster risks were reduced, leading to less economic loss and fewer fatalities.
New research from the Institute of Atmospheric Physics suggests a future intensification of the WNPSH under RCP 8.5, leading to stronger East Asian summer monsoon and increased rainfall but reduced typhoon landfalls over East Asia. However, this may also imply increased risk of heatwaves in southern and eastern China.
A new study found that the rainy season in Northern Central Asia will shift from May-July to March-May by the end of the 21st century. This change is attributed to increased precipitation, with a projected 14.41% rise under the highest emission scenario.
Researchers warn that a violent Philippine volcanic eruption could lead to an El Niño event, intense polar vortex, and Eurasian warming. The Taal volcano's ongoing eruption has the potential to produce hazardous consequences for the Earth's climate.
Human activity significantly disrupts the natural balance of nitrogen, posing a threat to terrestrial and aquatic life. The special issue examines the cascading consequences of rising nitrogen levels in circulation.
A recent study assesses fire aerosol impacts on global ecosystem productivity, finding cooling and drying effects on land surfaces. Fire aerosols decreased gross primary productivity in most vegetated areas, with some exceptions like the Amazon region.
A recent study published in Advances in Atmospheric Sciences estimates that the Yangtze River Delta region contributes around one-third of China's total hydrofluorocarbon emissions. The study found that the region has a higher emissions intensity per capita, area, and GDP compared to national and global levels, with HFC-23 being the pr...
New research from China provides detailed GHG emission estimates, including CO2 distribution in cities and non-CO2 monitoring. These findings support low-carbon development and energy conservation efforts.
Researchers improve forecasting of strong convective weather using analogy method, which estimates occurrence environment for similar weather phenomena based on historical model forecasts. The method performs well in predicting potential for strong convection in different regions of China.
Researchers tested three passive samples and found lower effective sampling rates due to incorrect mass transfer correction factors. They also discovered a diffusion isotope effect affecting ammonia isotope compositions, with a significant bias of 15.4‰ in urban Beijing.
A recent study uses the Noah LSM with multi-parameterization options to quantify the impacts of nitrogen dynamics on terrestrial carbon and water cycles in China. The results show improved simulations of gross primary productivity and leaf area index, with reduced errors and better spatial patterns.
A study estimates the cloud water path of mature tropical cyclones by analyzing the correlation between cloud microphysical properties and precipitation intensity. The results show that a notable sigmoid function can be used to fit the cloud water path and near-surface rain rate, providing a new way to estimate cloud water path in models.
Long-term crop straw incorporation reduces annual ammonia volatilization fluxes by 16.1% to 35.1%, likely due to high C/N ratio of straw increasing microbial N immobilization and ammonium transformation. This practice sustains agricultural development while minimizing environmental impact.
A miniaturized carbon dioxide monitoring instrument based on non-dispersive infrared technology has been developed to observe carbon dioxide concentrations in the boundary layer. The instrument provided consistent results with conventional gas chromatography analyzers and revealed that CO2 concentration decreases with increasing altitude.
Researchers found a strong correlation between air temperature and Terra Nova Bay polynya area, with lower temperatures showing stronger effects. The study provides new insights into the complex interactions between atmospheric conditions and Antarctic ice cover.
A recent special issue of Advances in Atmospheric Sciences presents the latest findings from expanded and ongoing research efforts in Antarctic meteorology and climate. The studies reveal signs of climate change, including strong warming over the Antarctic Peninsula, rapid ice loss, and changes in precipitation patterns.
Research reveals that livestock and poultry farming account for 78.08% of agricultural ammonia emissions in Jiangsu Province, with nitrogen fertilizer application contributing 21.92%. The study suggests focusing on controlling ammonia emissions from these sources to mitigate haze pollution.
Eastern China's air pollution has been a major concern, and new research suggests that future aerosol emission reductions could worsen atmospheric diffusion conditions conducive to extreme haze events. The study found that climate effects induced by aerosol reduction play a leading role in the anticyclone change in eastern China.
Researchers found that UAV sounding data can improve Antarctic weather forecasting, especially for temperature, wind speed, and humidity predictions. The limited flight altitude of UAVs restricts the improvement to the atmospheric boundary layer.
A recent study found that reducing sulfur dioxide emissions alone can significantly decrease air pollution, mainly due to the stability of ammonium nitrate formed with nitrogen oxides and ammonia. In China, nitrogen dioxide control is more effective in reducing surface PM2.5 concentrations.
A new study corrects systematic errors in ocean temperature data using empirical correction schemes, improving the homogeneity of global databases. The technique significantly reduces biases, especially during the 1940-1970 period, crucial for climate change studies.
A team of Brazilian researchers collected shallow snow cores and analyzed BC concentrations to study the particle's effect on Antarctic climate. They found very low BC concentrations, sparking questions about BC seasonal variability and geographical sources.
Open biomass burning has a significant impact on regional air quality, especially in Northeast China. The study found that the number of fire points concentrated in two key periods: March-April and October-November, with most fires occurring in cropland.
New research suggests that the Arctic may impact Eurasian extreme weather events as quickly as two to three weeks, highlighting the need for more robust analysis techniques. The study aims to improve forecast accuracy by targeting specific observations and developing simulation experiments.
The article discusses recent findings from WAMC workshops and YOPP meetings, focusing on Antarctic observations, numerical modeling, and weather forecasting. Open access to datasets and improved predictive skills are major aspirations for the Polar Prediction Project.
A recent study found that most ammonia emitted from fertilized paddy fields deposits near the source, rather than entering the atmosphere. This process reduces atmospheric ammonia pollution and is a result of dry deposition.
Recent studies challenge traditional approaches to understanding air pollution impacts by highlighting the importance of dry deposition processes, particularly ammonia. Ammonia plays a vital role in nitrogen deposition and haze pollution, with global concentrations increasing worldwide over recent decades.
Researchers used ensemble simulations to quantify uncertainty caused by internal variability in SASM rainfall projections. They found a linkage between the Interdecadal Pacific Oscillation (IPO) phase and the spread in projected SASM rainfall, identifying IPO as a leading internal mode influencing near-term projection.
Researchers discovered significant chemical differences between PM1 and PM2.5 aerosol species, affecting particle acidity and water content predictions. These findings are crucial for accurately modeling air pollution in highly polluted regions, where the distinction is critical.
A new method using Nonlinear Forcing Singular Vector (NFSV) reduces model error in numerical weather forecasting models. The approach identifies the uncertainty of variable and area most likely to cause large errors, enabling adaptive satellite observations to improve short-term forecasts.
Researchers find freeze-drying method yields more accurate results for measuring soil N reactive gas fluxes and total emissions. This approach could lead to revised understanding of global nitrogen cycle mechanisms.
A recent study by the Institute of Atmospheric Physics found that advanced leaf-out timing enhances annual surface warming in the Northern Hemisphere. The study revealed that early sprouting and opening leaves intensify water vapor release, leading to snow and cloud cover anomalies in northern high latitudes.
A new study verified multi-system forecasts for major stratospheric sudden warmings (MSSWs), showing that all four systems can be judged skilled for five-day forecasts when averaged across available MSSWs. Longer lead times present challenges, with some systems skillful but others not.
Researchers develop new method to predict rapid intensification in tropical cyclones using the Synchronization Index, which measures vertical structure coherence. This index helps forecasters monitor vortex structure and understand processes influencing rapid intensification.
A new analysis shows the world's oceans were the warmest in 2019 than any other time in recorded human history. The study reveals that the past ten years have been the warmest on record for global ocean temperatures, with significant consequences for marine life and extreme weather events.
The ENSO heat engine is shifting eastward under global warming, leading to changes in global climate variations during ENSO years. This shift may also accelerate the decay of El Niño events after their peak phase, shortening their duration.
Researchers have developed an optimal climate model configuration for Southeast Asia, addressing the region's complex topography and monsoon climate. The customized RegCM4.7 model improves precipitation reproduction and simulates weather and climate extremes with enhanced accuracy.
Research suggests that high-latitude vegetation growth can impede the spread of midlatitude deserts by altering regional energy balances. The study found significant retreat of southern midlatitude desert boundaries and expansion of polar ice belts and low-latitude vegetation zones.
The study estimated nitrogen deposition in northern China using a combination of remote sensing data and atmospheric chemical transport model simulations, revealing an average flux of 54.5 kg N per hectare. This represents 10% of the annual nitrogen application for winter wheat-summer maize rotation in the region.
Researchers at the Institute of Atmospheric Physics, Chinese Academy of Sciences, published a report analyzing climate monitoring data for the Three Gorges area of the Yangtze River in 2018. The study provides basic climate monitoring facts and data to inform further research on extreme climatic events.
A study published in Science Bulletin finds that limiting global warming to 1.5°C would reduce precipitation extremes in China, particularly in southeastern regions. The research highlights the social impacts of climate change, with heavy rainfall events intensifying across the country and dry extremes increasing in South China.
Researchers from the Chinese Academy of Sciences conducted model perturbation experiments to improve monsoon predictions. The study sheds light on the complex atmosphere-ocean-land interactions driving monsoon systems and their regional variations.
Researchers have made a breakthrough in predicting June rainfall in the lower Yangtze River Basin with four-month accuracy. The Met Office's seasonal forecasting system successfully identifies variations in mei-yu rainfall linked to atmospheric circulation patterns.
The study reviews a new method called emergent constraints, which uses current climate information to constrain future climate evolution. This approach aims to reduce uncertainties in climate sensitivity and improve the accuracy of climate model projections.
Research on warm-sector heavy rainfall (WSHR) in China has revealed its association with specific synoptic patterns and topography factors in South China. However, WSHR events in other regions are less understood, leading to inaccurate forecasts.
Research reveals surface discontinuity plays a significant role in developing nearshore convection systems, sustaining precipitation in coastal areas of Korea. The study found changes in wind stress and potential temperature enable these systems, with roughness changes enhancing convergence and energy transfer.