Ningxin Jiang
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View article: Towards compliance with the 2021 WHO air quality guidelines: A comparative analysis of PM2.5 trends in australia and china
Towards compliance with the 2021 WHO air quality guidelines: A comparative analysis of PM2.5 trends in australia and china Open
In 2021, the World Health Organization (WHO) released new Air Quality Guidelines (AQG) which significantly reduced the recommended annual mean concentration of fine particulate matter (PM2.5) in ambient air from 10 μg/m3 (AQG 2005) to 5 μg…
View article: Transport of pollutants from Pilliga Forest wildfires in northern New South Wales in December 2023 and its impact on air quality
Transport of pollutants from Pilliga Forest wildfires in northern New South Wales in December 2023 and its impact on air quality Open
In mid-December 2023, a large wildfire occurred in Pilliga Forest, Duck Creek, about 20 km south of the town of Narrabri in northern New South Wales. The fire was started and caused by lightning. It quickly spread due to high temperature a…
View article: Pre-synthetic redox control of structure and properties in copper TTFtt coordination polymers
Pre-synthetic redox control of structure and properties in copper TTFtt coordination polymers Open
Conductive coordination polymers (CPs) with sulfur-based ligands offer strong metal–ligand interactions and redox tunability, making them promising candidates for electronic applications.
View article: Dempster-Shafer ensemble learning framework for air pollution nowcasting
Dempster-Shafer ensemble learning framework for air pollution nowcasting Open
Deep-learning has emerged as a powerful approach to significantly improve forecast accuracy for air quality estimation. Several models have been developed, demonstrating their own merits in some scenarios and for certain pollutants. In now…
View article: A Bayesian-Optimized Surrogate Model Integrating Deep Learning Algorithms for Correcting PurpleAir Sensor Measurements
A Bayesian-Optimized Surrogate Model Integrating Deep Learning Algorithms for Correcting PurpleAir Sensor Measurements Open
Lowcost sensors are widely used for air quality monitoring due to their affordability, portability and easy maintenance. However, the performance of such sensors, such as PurpleAir Sensors (PAS), is often affected by changes in environment…
View article: High resolution catalog of the Luxian (Sichuan, China) MS6.0 earthquake sequence and analysis of the seismogenic structures
High resolution catalog of the Luxian (Sichuan, China) MS6.0 earthquake sequence and analysis of the seismogenic structures Open
The epicenter of the Luxian MS6.0 earthquake on September 16, 2021, was located in the southern Sichuan Basin, which is a historically seismically quiescent area. In recent years, the frequency of earthquakes has increased with the large-s…
View article: A Bayesian-Optimized Surrogate Model Integrating Deep Learning Algorithms for Correcting PurpleAir Sensor Measurements
A Bayesian-Optimized Surrogate Model Integrating Deep Learning Algorithms for Correcting PurpleAir Sensor Measurements Open
Low-cost sensors are widely used for air quality monitoring due to their affordability, portability and easy maintenance. However, the performance of such sensors, such as PurpleAir Sensors (PAS), is often affected by changes in environmen…
View article: The Small and Moderate Earthquake Parameters Training Catalog on the Main Faults in Sichuan, China
The Small and Moderate Earthquake Parameters Training Catalog on the Main Faults in Sichuan, China Open
Numerous investigations have suggested that seismic source parameters and properties of the surrounding medium harbor valuable information regarding alterations in stress fields and medium properties at the focal depth. Monitoring the spat…
View article: Visualising Daily PM10 Pollution in an Open-Cut Mining Valley of New South Wales, Australia—Part II: Classification of Synoptic Circulation Types and Local Meteorological Patterns and Their Relation to Elevated Air Pollution in Spring and Summer
Visualising Daily PM10 Pollution in an Open-Cut Mining Valley of New South Wales, Australia—Part II: Classification of Synoptic Circulation Types and Local Meteorological Patterns and Their Relation to Elevated Air Pollution in Spring and Summer Open
The Upper Hunter Valley is a major coal mining area in New South Wales (NSW), Australia. Due to the ongoing increase in mining activities, PM10 (air-borne particles with an aerodynamic diameter less than 10 micrometres) pollution has becom…
View article: Visualising Daily PM10 Pollution in an Open-Cut Mining Valley of New South Wales, Australia—Part I: Identification of Spatial and Temporal Variation Patterns
Visualising Daily PM10 Pollution in an Open-Cut Mining Valley of New South Wales, Australia—Part I: Identification of Spatial and Temporal Variation Patterns Open
The Upper Hunter Valley is a major coal mining area containing approximately 40% of the currently identified total coal reserves in New South Wales (NSW), Australia. Due to the ongoing increase in mining activities, PM10 (airborne particle…
View article: Visualising Daily PM10 Pollution in an Open-Cut Mining Valley of New South Wales, Australia - Part II: Classification of Synoptic Circulation Types and Local Meteorological Patterns and Their Relation to Elevated Air Pollution in Spring and Summer
Visualising Daily PM10 Pollution in an Open-Cut Mining Valley of New South Wales, Australia - Part II: Classification of Synoptic Circulation Types and Local Meteorological Patterns and Their Relation to Elevated Air Pollution in Spring and Summer Open
The Upper Hunter Valley is a major coal mining area in New South Wales (NSW), Australia. Due to the ongoing increase of mining activities, PM10 (air-borne particle with an aerodynamic diameter less than 10 micrometres) pollution has become…
View article: Visualising Daily PM10 Pollution Data in an Open-Cut Mining Valley of New South Wales, Australia—Part I: Identification of Spatial and Temporal Variation Patterns
Visualising Daily PM10 Pollution Data in an Open-Cut Mining Valley of New South Wales, Australia—Part I: Identification of Spatial and Temporal Variation Patterns Open
The Upper Hunter Valley is a major coal mining area containing approximately 40% of the currently identified total coal reserves in New South Wales (NSW), Australia. Due to the ongoing increase of mining activities, PM10 (air-borne particl…
View article: Assessing the Precision of Radon Measurements from Beta-Attenuation Monitors
Assessing the Precision of Radon Measurements from Beta-Attenuation Monitors Open
Atmospheric radon measurements assist in many aspects of climate and meteorological research, notably as an airmass tracer and for modelling boundary layer development, mixing heights and stability. Daughter products from radon decay are s…
View article: Long-Term Trends in Inferred Continental Background Ozone in Eastern Australia
Long-Term Trends in Inferred Continental Background Ozone in Eastern Australia Open
A better understanding of background tropospheric ozone delivers multiple benefits. Robust estimates of regional background ozone are required to understand the limits of anthropogenic emissions controlling ozone reduction. Long-term estim…
View article: Long-Term Trends in Inferred Continental Background Ozone in Eastern Australia
Long-Term Trends in Inferred Continental Background Ozone in Eastern Australia Open
A better understanding of background tropospheric ozone delivers multiple benefits. Robust estimates of regional background ozone assist policy makers to understand the limits to reducing ozone by controlling anthropogenic emissions alone …
View article: Long Short-Term Memory Bayesian Neural Network for Air Pollution Forecast
Long Short-Term Memory Bayesian Neural Network for Air Pollution Forecast Open
This paper presents a data fusion framework to enhance the accuracy of air-pollutant forecast in the state of New South Wales (NSW), Australia using deep learning (DL) as a core model. Here, we propose a long short-term memory Bayesian neu…
View article: On thresholds for controlling negative particle (PM 2.5 ) readings in air quality reporting
On thresholds for controlling negative particle (PM 2.5 ) readings in air quality reporting Open
Ambient PM 2.5 (particles less than 2.5 µm in diameter) is monitored in many countries including Australia. Occasionally PM 2.5 instruments may report negative measurements, although in realty the ambient air can never contain negative amo…
View article: Tropospheric ozone measurements at a rural town in New South Wales, Australia
Tropospheric ozone measurements at a rural town in New South Wales, Australia Open
In Australia, tropospheric ozone measurements in rural locations are scarce with measurements mostly made in cities. This limits the ability to estimate background ozone levels that inform policy development. The few studies that have asse…
View article: Air quality impacts of the 2019–2020 Black Summer wildfires on Australian schools
Air quality impacts of the 2019–2020 Black Summer wildfires on Australian schools Open
The 2019–2020 Black Summer wildfires wrought destruction across Australia and exposed millions of people to air pollution. Using a new school-based observational network alongside long-standing observations, we provide the first assessment…
View article: The Effect of Lockdown Period during the COVID-19 Pandemic on Air Quality in Sydney Region, Australia
The Effect of Lockdown Period during the COVID-19 Pandemic on Air Quality in Sydney Region, Australia Open
In early 2020 from April to early June, the metropolitan area of Sydney as well as the rest of New South Wales (NSW, Australia) experienced a period of lockdown to prevent the spread of COVID-19 virus in the community. The effect of reduci…
View article: The Effect of Lockdown Period During Covid-19 Pandemic on Air Quality in Sydney Region, Australia
The Effect of Lockdown Period During Covid-19 Pandemic on Air Quality in Sydney Region, Australia Open
In early 2020 from April to early June, the metropolitan area of Sydney as well as the rest of New South Wales (NSW, Australia) experienced a period of lockdown to prevent the spread of Covid-19 virus in the community. The effect of reduci…
View article: The 3D Seismic Azimuthal Anisotropies and Velocities in the Eastern Tibetan Plateau Extracted by an Azimuth‐Dependent Dispersion Curve Inversion Method
The 3D Seismic Azimuthal Anisotropies and Velocities in the Eastern Tibetan Plateau Extracted by an Azimuth‐Dependent Dispersion Curve Inversion Method Open
An azimuth‐dependent dispersion curve inversion (ADDCI) method is applied to Rayleigh waves to extract 3D velocity and azimuthal anisotropy. The synthetic tests show that the ADDCI method is able to extract azimuthal anisotropy at differen…
View article: Performance Evaluation of CCAM-CTM Regional Airshed Modelling for the New South Wales Greater Metropolitan Region
Performance Evaluation of CCAM-CTM Regional Airshed Modelling for the New South Wales Greater Metropolitan Region Open
A comprehensive evaluation of the performance of the coupled Conformal Cubic Atmospheric Model (CCAM) and Chemical Transport Model (CTM) (CCAM-CTM) for the New South Wales Greater Metropolitan Region (NSW GMR) was conducted based on modell…
View article: Meteorological controls on atmospheric particulate pollution during hazard reduction burns
Meteorological controls on atmospheric particulate pollution during hazard reduction burns Open
Internationally, severe wildfires are an escalating problem likely to worsen given projected changes to climate. Hazard reduction burns (HRBs) are used to suppress wildfire occurrences, but they generate considerable emissions of atmospher…
View article: Meteorological controls on atmospheric particulate pollution during hazardreduction burns
Meteorological controls on atmospheric particulate pollution during hazardreduction burns Open
Internationally, severe wildfires are an escalating problem likely to worsen given projected changes to climate. Hazard reduction burns (HRB) are used to suppress wildfire occurrences, but they generate considerable emissions of atmospheri…
View article: Local and regional smoke impacts from prescribed fires
Local and regional smoke impacts from prescribed fires Open
Smoke from wildfires poses a significant threat to affected communities. Prescribed burning is conducted to reduce the extent and potential damage of wildfires, but produces its own smoke threat. Planners of prescribed fires model the like…
View article: Visualising the relationships between synoptic circulation type and air quality in Sydney, a subtropical coastal‐basin environment
Visualising the relationships between synoptic circulation type and air quality in Sydney, a subtropical coastal‐basin environment Open
Ozone and particle pollution are of concern for the Sydney basin, in particular during warm months (November to March) when pollution levels can exceed national standards. Previous studies on the relationship between synoptic circulation a…
View article: Local and regional smoke impacts from prescribed fires
Local and regional smoke impacts from prescribed fires Open
Smoke from wildfires poses a significant threat to affected communities. Prescribed burning is conducted to reduce the extent and potential damage of wildfires, but produces its own smoke threat. Planners of prescribed fires model the like…