Chinese scientists have launched a rocketsonde from an unmanned semi-submersible vehicle, enabling accurate meteorological and oceanographic data collection over vast marine environments. The launch aims to improve numerical weather forecasts, typhoon tracking, and coastal zone monitoring.
Simulating clouds over the Tibetan Plateau helps researchers understand the role of convective systems in disastrous Chinese weather events. The study reveals biased models with excessive water vapor lifting, leading to more high-level ice clouds and less middle-level cumulus cloud.
The 2018 ocean heat content observations reveal the highest recorded temperature for the global ocean since the 1950s. This increase in heat content is ~100 million times more than the Hiroshima bomb and highlights the consequences of global warming on oceanic water temperatures.
New research reveals ocean heat content is accelerating, with 2018 likely the hottest year on record. The warming contributes to sea level rise, increased rainfall intensity, and stronger storms.
A new study found that fire air pollution weakens forest productivity globally, with surface O3 reducing GPP by 4.9 Pg C and global aerosols enhancing it by 1.0 Pg C. The net impact is dominated by O3, leading to a reduction of 0.9 Pg C annually.
A recent study by Chinese researchers reveals that horizontal heat flux in the mixed layer is crucial for extreme heat events. The analysis of a 2015 heatwave found that this factor, combined with sensible heat flux, drove high temperatures.
A collaborative research team examined predictive models used to forecast wind farm effects, revealing the importance of model resolution in simulating weather patterns. Higher vertical and horizontal resolutions improved simulations, but more study is needed to optimize wind energy deployment.
A new study reveals a significant decline in wind energy resources over the Northern Hemisphere, with 30-80% of stations losing wind power potential since 1979. Climate models are found to be inadequate in simulating long-term wind energy changes, underscoring the need for careful consideration when using GCM-based projections.
A study focusing on iron in the North Pacific reveals its role in controlling primary productivity, carbon cycle, and marine ecosystem. The distribution of biologically available iron is influenced by factors like mixing, upwelling, and ocean acidification.
Researchers monitored agglomerate fog formation during a cold surge in Southeast China, analyzing the effect of rain, snow, and supercooled fog on wire icing growth. They found that certain meteorological conditions fueled the rate of icing growth, particularly at higher heights.
Researchers from China used Fengyun-3A satellite data to develop a more accurate model for predicting aerosol mass. The team's method improved the accuracy of climate predictions by combining satellite observations with ground-based data.
A new study reveals that global warming continued unabated since the Industrial Revolution, with a constant rate of change after World War II. The hiatus, often attributed to internal variability and external forcing, is actually a decadal balance between global warming and cooling from anomalous sea surface temperatures in the equator...
A high-resolution land surface model improves streamflow and soil moisture simulations over the Sanjiangyuan region. Natural climate change dominates changes in terrestrial hydrology, while anthropogenic climate change mainly affects ground temperature.
Scientists have identified a significant link between spring cold spells and crop yield losses in North China. Continuous negative temperature anomalies during these events can lead to devastating effects on wheat yields, resulting in losses of up to 20%.
The study used balloon-borne measurements to investigate dust particles in the free troposphere over a Chinese desert region. The findings suggest that mineral particles from desert areas have a local influence and are transported long distances, with coarse-mode particles dominating the size distribution.
A new ocean mixed layer model reproduces a more realistic sea surface temperature (SST) diurnal cycle than existing models. The 31-year global diurnal sea surface temperature dataset reveals significant seasonal and interannual variations of SST, with potential implications for ENSO prediction.
Researchers have developed a new method to identify outliers in air quality monitoring data, which can automatically flag erroneous data and improve forecasting accuracy. The method uses probability of residuals to discriminate outliers, allowing for simultaneous evaluation of spatial and temporal consistencies.
A global online survey found that heat-related work productivity loss varies significantly between developed and developing countries. The study estimated average WPL losses of 3.5 days for developed countries and 6.6 days for developing countries under different warming scenarios.
Researchers used NLLE approach to estimate predictability limit of TCs over WNP basin, finding a baseline uncertainty of 102 hours comparable to TC intensity. The spatial distribution characteristics reveal varying predictability limits across regions, with highest in eastern WNP and lowest in South China Sea.
Two types of flash drought have been identified in China, Type I driven by high temperatures and evapotranspiration, while Type II is initiated by rainfall deficiency. Both types have increased significantly over the past 30 years, with a two-fold greater increase for Type I.
The new global marine environmental forecasting system will provide accurate predictions of ocean temperature, salinity, velocity, and tidal currents with a horizontal resolution of 10 km. The system's accuracy is expected to reach an advanced international level, enabling clear identification of ocean mesoscale phenomena.
Researchers from the Institute of Atmospheric Physics in China used a long-baseline lightning location network to track more than 30 red sprites. The study found that most sprite-producing cloud-to-ground strokes occurred during the mature stage of an asymmetric mesoscale convective system, with locations typically within 10 km.
The study reveals that the extratropical circulation is less predictable than the tropical component due to large atmospheric internal variability. The connection between the EAP pattern and surface temperatures in eastern Russia can modulate the East Asian rainband, improving seasonal forecasts.
Researchers analyzed precipitation and temperature records with NDVI data from 1982-2011 to find a shift in the climate factors controlling vegetation dynamics on the central and southeastern Tibetan Plateau. The study suggests that global warming may be contributing to this change, potentially impacting regional ecosystems.
A new approach using a geostationary hyperspectral infrared sounder can significantly improve local severe-storm forecasting by providing high-resolution atmospheric temperature and humidity information. This unprecedented data is crucial for nowcasting and forecasting high-impact weather events.
Recent study reveals Amazonian precipitation in wet season has largely increased during the past three decades due to changes in sea surface temperature (SST) variability. This finding suggests a new perspective for studying long-term change in Amazonian precipitation.
Researchers have found that volcanic eruptions cause different impacts on sea surface temperature (SST) gradients over the equatorial Pacific, depending on their latitude. Northern and tropical eruptions lead to El Nino-like warm SST anomalies in the eastern Pacific, while southern eruptions result in weaker warming anomalies with an e...
Researchers found that low-resolution climate models fail to capture the complexity of regional rainfall systems, leading to underestimated projections. High-resolution models, on the other hand, project large increases in summer rainfall under certain scenarios.
Research suggests that global oceanic warming contributes to warmer winters in Europe and northern East Asia. The team found positive North Atlantic Oscillation anomalies, low-pressure systems, and a weaker-than-normal East Asian trough linked to oceanic warming.
Researchers improved soil moisture drought forecasting over the Yellow River Basin by combining climate and land surface hydrology models, achieving higher probabilistic drought forecasting skill and reliability. The multimodel ensemble approach provides valuable information for drought adaptation in this region.
A study published in Nature Communications found that reducing global warming by half a degree Celsius could significantly decrease extreme precipitation events, resulting in lower exposure to flooding and landslides. The research suggests that limiting warming to 1.5°C could robustly benefit the populous global monsoon region.
The regional climate modeling community has made significant progress in developing regional earth system models (RESMs), which account for the atmosphere, ocean, land, sea ice, and other key components. Researchers highlight the need for further development, including the inclusion of human factors and interactive biosphere elements.
Researchers warn of significant changes in regional rainfall patterns over densely populated Eastern China due to global warming. The study, published in Advances in Atmospheric Sciences, reveals that increased CO2 forcing leads to differing responses on interannual and interdecadal timescales.
Researchers have pinpointed the geographic sectors that control the strength and edges of the Hadley circulation, a prominent atmospheric overturning circulation. The study found that mid-latitude eddies play a dominant role in the variability of Hadley circulation strength in certain regions.
The study found that solar irradiance strengthens the Siberian high and low-level East Asian winter circulation, resulting in lower surface air temperatures in East Asia. This mechanism helps explain the variability of the East Asian winter monsoon at decadal and longer time scales.
Historical data analysis reveals significant differences in source region contributions to haze under unfavorable weather systems. Policymakers can develop more efficient control plans by incorporating weather system analysis when haze events occur.
Researchers conducted an international survey to assess the importance of variables in climate models. They found consensus on certain variables like rainfall and evaporation but disagreement on others like surface winds. The study highlights the need for more systematic approaches to model assessment, which will aid in evaluating new ...
The study found that pollution levels in Hong Kong are mainly determined by tropical cyclone locations, with different impacts on PM10 and ozone levels. Tropical cyclones bring high concentrations of pollutants when located east or southeast of Hong Kong.
Climate change-induced tropical circulation slowdowns are linked to poleward Hadley cell expansion and intertropical convergence zone shifts. Regional precipitation redistribution involves complex thermodynamic and dynamical processes, including surface warming effects over oceans and land.
A new study presents a strategy for FY-3 microwave humidity sounders and radiation imager assimilation in the Met Office NWP model, significantly improving forecast error reduction. Operational monitoring allows rapid detection of data anomalies, which are fed back to China Meteorological Administration for investigation and remedy.
Scientists successfully forecasted summer temperatures in western China using a new model, showing high correlation with observations over most regions. The predictability is linked to interannual SST variations and tropical Pacific trends.
A recent study by Prof. Xuejie Gao and colleagues found that China's population will experience a six-fold increase in very hot days by the end of the 21st century, affecting over 0.2 billion people with no exposure to cooling. The region from Yangtze River valley to North China will see the largest increase in thermal stress.
The Climate Science for Service Partnership China (CSSP China) has improved understanding of climate change effects and reduced climatic risks through research collaborations with the UK. The partnership has led to advancements in seasonal forecasting, crop security, and climate services.
The ACRE China project recovers instrumental weather observations for the East Asian region, enhancing global weather and climate knowledge. The collaboration enables the creation of a spatially and temporally-complete data base of historical weather patterns and fluctuations.
A study found a positive feedback mechanism between the East Asian upper-tropospheric westerly jet (EAJ) and land surface temperature, particularly in the Russian Far East. The EAJ's deceleration leads to increased warming, which in turn strengthens the EAJ, creating a self-reinforcing cycle.
Researchers studied targeted observation for ENSO prediction, finding that observing central equatorial Pacific improves skill by 25%, while eastern Pacific observations during April-October boost accuracy by 62%. Implementing targeted observation weakens the spring predictability barrier, significantly improving prediction skill.
A new analysis projects a 4°C temperature increase by 2084, more severe than the 2°C threshold set by the Paris Agreement. This would lead to extreme weather events, ecosystem disruption, and societal threats.
Researchers found that the Unified Model's microphysics scheme produces unrealistic raindrop size distributions, affecting storm structures. The study emphasizes the importance of selecting the right microphysics scheme for accurate weather prediction.
A recent study found that limiting global warming to 1.5°C could reduce extreme climate events in Africa, such as droughts and heatwaves, by up to 25% and 20%, respectively. This reduction is projected despite a slight increase in precipitation extremes.
A new chemical method is used to determine nitrogen stable isotope composition at natural abundance for ammonium, revealing source dependence of isotopic abundance in urban Beijing. Fossil fuel emissions are found to be a significant source of aerosol ammonium, accounting for 37-52% of initial ammonia concentrations.