Stratospheric aerosol - PowerPoint PPT Presentation


NASA Atmosphere Observing System (AOS) Overview

NASA's Atmosphere Observing System (AOS) comprises innovative technologies and instruments to study aerosol, cloud, convection, and precipitation processes. AOS includes the AOS-Storm and AOS-Sky missions, utilizing various sensors like radars, lidars, radiometers, and polarimeters to address key at

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Gas Behavior Review

Review key concepts related to the behavior of gases, including characteristics of gases, properties at standard conditions, the kinetic molecular theory, and factors affecting gas pressure. Test your knowledge with true or false questions and learn about gas compression, gas movement in aerosol can

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Understanding Rinderpest: Symptoms, Transmission, and Host Range

Rinderpest is a viral disease characterized by high fever, lachrymal discharge, inflammation, erosions of the mouth, and diarrhea, leading to death. The disease affects cloven-hoofed animals, with cattle and water buffalo being most susceptible. Transmission occurs through aerosol vectors and ingest

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Understanding Pharmaceutical Aerosols: Components and Advantages

Pharmaceutical aerosols are pressurized systems used for delivering therapeutic active ingredients. They consist of components like propellants, containers, valves, and product concentrate. The use of aerosols offers advantages such as targeted delivery, reduced irritation, and ease of application.

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Aerosol Can Market Current Status and Future Prospects By 2024

Global Aerosol Can Market Breakdown by Application (Personal Care, Household, Automotive & Industrial, Food, Paints, Medical) by Type (Bag-on-valve (BOV), Standard) by Can Type (Steel, Aluminum, Plastic) and by Geography (North America, South America

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Respiratory Health Imaging Studies and Evaluation

Explore a series of informative images showcasing various respiratory health evaluations and studies, including mucociliary clearance, cough clearance measured by gamma scintigraphy, pulmonary deposition of inhaled aerosol therapies, and assessment of fitted filtration efficiency using specialized p

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Antarctic Ozone Hole Recovery and Future Challenges

Depletion of the stratospheric ozone layer in Antarctica due to chlorine emissions led to the formation of the ozone hole. Since the phasing out of Ozone-Depleting Substances (ODSs) under the Montreal Protocol, there has been a reduction in anthropogenic ODSs in the troposphere. Observations and che

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Aerosol Manufacturers' Association South Africa Overview

The Aerosol Manufacturers' Association (AMA) of South Africa, founded in 1963, aims to improve regulatory and safety standards in the aerosol industry. It conducts activities such as hosting an Annual General Meeting, electing an Executive Committee, and emphasizing on Anti-Trust obligations. AMA st

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Understanding Adenoviruses: Structure, Replication, and Epidemiology

Adenoviruses, known for causing respiratory infections, have at least 41 serotypes categorized into 6 subgenera. Their structure includes 252 capsomeres, 240 hexons, and specific proteins for attachment. The replication involves virus attachment, penetration, uncoating, and transportation of viral D

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GOES-18 Provisional Validation Review and Products Overview

Peer and stakeholder validation review of GOES-18 Group 3 products including land surface temperature, aerosol optical depth, aerosol detection products for dust and smoke, and rain rate/quantitative precipitation estimate. Data presented in non-operational format with discussions on wintertime use

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Chemistry in the Arctic: CHACHA Project Overview

The CHACHA Project is a collaborative research initiative involving six institutions to study Arctic chemistry in relation to sea ice loss and fossil fuel extraction. The team aims to assess how these environmental changes impact halogen, nitrogen, and sulfur chemistry, with a focus on aerosols and

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Understanding Chemistry and Composition in the Climate System

Dive into the intricate relationship between chemistry and composition in the climate system, exploring topics such as radiative effects, stratosphere-troposphere coupling, aerosol-cloud interactions, and the impact of various gases and particulates on radiative forcing. Discover how changes in comp

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IMT Connectivity by Stratospheric Base Stations (HIBS) Overview

The document presents information on High-Altitude Platform Stations (HIBS) as International Mobile Telecommunications base stations. It discusses the regulatory situation, support for IMT band plans, and the role of Agenda item 1.4 in WRC-23. Additionally, it outlines the work of ITU-R WP5D and upc

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Cutting-Edge Atmospheric Chemistry Modeling Research at Barcelona Supercomputing Center

Conducted by the Atmospheric Composition Group at Barcelona Supercomputing Center, this cutting-edge research focuses on atmospheric chemistry modeling using advanced tools and frameworks like HERMESv3 and MONARCH. The team's approach integrates various modules to study complex processes influencing

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Exploring Aerosol Microphysics and Aqueous Phase Chemistry in Atmospheric Research

This material delves into the study of aerosol microphysics and aqueous phase chemistry in the context of atmospheric research. It discusses topics such as scale-dependencies, obstacles in development, working groups for MUSICA, and the importance of various processes in aerosol modeling. The conten

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EPA Oil and Gas VOC Speciation Improvement Efforts

EPA's VOC Speciation transforms inventory species into Air Quality model species to support chemistry, ozone, and aerosol chemistry. The Speciate4.5 update in 2016 added oil and gas profiles, including location-specific uncontrolled profiles and WRAP profiles for various basins. The Uinta TMSR profi

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Advancements in Chemical Mechanisms for Aerosol Effects in WRF/Chem Model

This study focuses on the development of a new chemical mechanism in the Weather Research and Forecasting with Chemistry (WRF/Chem) model to address the underestimation of carbonaceous aerosols. The RACM/MADE/SOA-VBS mechanism incorporates advancements in gas-phase chemistry and particle parameteriz

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Advanced Analysis of SAGE III Limb Scatter Retrievals

The proposed effort focuses on enhancing LaRC operational retrieval codes for SAGE LS data, correcting Level 1 radiances, and recommending LS operational scenarios. OMPS LS retrieval algorithms for aerosol and ozone, as well as the SAGE/M3 LS ozone retrieval approach, are detailed. Out-of-field stra

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GOES-R ABI Aerosol Detection Product Validation Summary

The GOES-R ABI Aerosol Detection Product (ADP) Validation was conducted by Shobha Kondragunta and Pubu Ciren at the NOAA/NESDIS/STAR workshop in January 2014. The validation process involved testing and validating the ADP product using proxy data at various resolutions for detecting smoke, dust, and

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Emerging Security Concerns in the Proto-zone: A Closer Look at Airspace Management and Regulation

Contextualizing the evolving challenges in the Proto-zone above commercial airspace, this article delves into the importance of formal consideration by space legal experts. With the rise of technologies like hypersonic transports, stratospheric balloons, and dark sky research stations, there is a gr

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Stratospheric and Tropospheric NO2 Separation Approaches

This document discusses the separation of stratospheric and tropospheric NO2 using different approaches such as spectral retrieval, conversion of slant columns, and two distinct methods for handling the data. Challenges for geostationary sensors and baseline approaches for operational algorithms are

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Vaping Awareness Presentation for South Carolina Department of Alcohol & Other Drug Abuse Services

This presentation for the South Carolina Department of Alcohol and Other Drug Abuse Services focuses on educating educators, schools, and parents about vaping trends, youth vaping dangers, state-specific information, and resources available for parents and professionals. It covers topics such as wha

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Understanding Transport Timescales and Source Regions of UTLS Air

Complex mixtures of air in the Upper Troposphere and Lower Stratosphere (UTLS) are studied using in situ trace gas measurements from the START08 campaign and surface stations. This research aims to determine transport timescales and source regions of air in the extratropical UTLS, focusing on high a

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Understanding Uncertainties in Direct Radiative Forcing of Aerosols

The uncertainties in the direct radiative forcing of aerosols can be assessed by considering factors such as emissions, lifetime, Mass Absorption Cross Section (MAC), Aerosol Absorption Optical Depth (AAOD), and forcing efficiency. Variations in these factors contribute to the overall uncertainty in

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Research on Stratospheric Polar Vortex and TPVs for Arctic Cyclone Predictability

This research aims to enhance predictability of Arctic cyclones by studying the Stratospheric Polar Vortex and Tropopause Polar Vortices (TPVs). The presence of strong westerly winds in the stratosphere during fall leads to anomalous cold air outbreaks in mid-winter. TPVs serve as precursors to arct

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Simulation of Stratospheric Temperature by GFDL Models: Observations and Trends

Interannual variations of stratospheric temperature since 1979 are well simulated by GFDL models, showing general cooling trends, stronger cooling over Southern Hemisphere high latitudes, post-eruption warming, delayed cooling after eruptions, and flat trends in the 2000s. However, models tend to ov

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Impacts of Tropospheric Ozone and Stratospheric Transport Contribution

The study examines the trends and impacts of tropospheric ozone, focusing on the significant increase observed over the Northwestern Pacific Coastal regions. It explores the primary drivers behind this ozone increase, attributing up to 90% to stratospheric intrusions as a result of the Montreal Prot

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Understanding Inequity in Air Quality: Implications for Climate and Human Health

This course delves into the chemical and physical processes governing atmospheric composition and their impact on climate, ecosystems, and human welfare. Students explore topics such as nitrogen, oxygen, carbon, and sulfur cycles, as well as the chemical forcing of climate change. The course highlig

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Assimilation of NPP VIIRS Aerosol Optical Depth Data in Global Model

Preparation and assimilation of aerosol optical depth data from NPP VIIRS into a global aerosol model, including product descriptions, data requirements, processed observations, and conclusions on VIIRS aerosol products. Details on AOT, APSP, SM classification, and environmental data records are cov

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MODIS/VIIRS Atmosphere Discipline Team Session - May 2023, College Park, MD

The MODIS/VIIRS Atmosphere Discipline Team hosted a session in May 2023 at College Park, MD, focusing on various aspects of atmospheric science. The session included presentations on aerosols, clouds, data access, continuity products, and new science products. Speakers discussed topics such as ambie

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Stratospheric Aerosol Subtyping Confidence and Lidar Ratio Uncertainty

This research delves into the classification confidence of stratospheric aerosol subtypes and possibilities for quantifying uncertainties in lidar ratio estimates due to inaccurate classification. It discusses CALIOP initial aerosol lidar ratios, optical properties of stratospheric aerosol layers, c

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Influence of GHG and Aerosol Forcings on Pacific Decadal Variability in CESM2

The study investigates how greenhouse gas (GHG) and aerosol forcings impact Pacific decadal variability (PDV) through the analysis of CESM2 full-forcing large ensemble data. It explores the influence on the Pacific Decadal Oscillation (PDO) and North Pacific Gyre Oscillation (NPGO) modes, long-term

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SAGE III Validation Update: Mission Planning, Partnerships, and Criteria

Carrie Roller, the SAGE III Scientist/Engineer, provides an update on validation and mission planning, including partnerships with NDACC lidar and sonde sites, weekly coordination of SAGE III events with in-situ data, and the criteria for validation using in-situ data such as stratospheric ozone, ae

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Understanding Atmospheric Composition and Structure

The presentation covers fundamental concepts related to the Earth's atmosphere, including its composition, origin of oxygen, dry and moist layers, standard atmosphere layers, and temperature variations. Key topics discussed include the primordial atmosphere, atmospheric constituents, water vapor dis

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Developments in Vertical Columns Inference for TEMPO NO2 Algorithm

The development of the TEMPO NO2 algorithm to infer vertical columns from total slant columns involves contributions from various experts, such as Randall Martin, Nick Krotkov, Lok Lamsal, Jintai Lin, Chris McLinden, and Caroline Nowlan. Attention is needed for the removal of stratospheric NO2 and a

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Impacts of Stratospheric Ozone Depletion on Ecosystems and Human Health: 2014 Assessment Report

Significant scientific advances in understanding the effects of stratospheric ozone depletion on ecosystems and human health were presented in the 2014 Assessment Report. The report assessed research covering various subject areas and highlighted the increased UV-B radiation levels due to ozone depl

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GEOS-Chem Atmospheric Chemistry Model Overview

GEOS-Chem, developed by Daniel J. Jacob at Harvard University, is a global model of atmospheric composition used to understand human and natural influences on the environment. The model addresses various atmospheric chemistry issues on different scales, from local to global, and is regularly updated

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Understanding Secondary Organic Aerosol Formation from Volatile Chemical Products

This research explores the impacts of volatile chemical products (VCPs) on secondary organic aerosol (SOA) formation. By identifying chemical tracers, assessing VCP contributions, and analyzing VOC emissions in different cities, the study aims to enhance our understanding of air quality and sources

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Insights from 2022 Scientific Assessment of Ozone Depletion

The 2022 Scientific Assessment of Ozone Depletion, led by David Plummer, addresses key issues like Ozone Depleting Substances, HFCs, Global and Polar Stratospheric Ozone, Climate Impacts, Stratospheric Aerosol Injection, and more. Chapter details reveal decreasing trends in Ozone Depleting Substance

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Updates on GOES-R Aerosol Optical Depth Validation Activities

Generated proxy data algorithm enhancements for post-launch validation activities were discussed at the GOES-R AWG 2nd Validation Workshop in January 2014. The use of MODIS reflectances as a proxy for ABI to retrieve Aerosol Optical Depth (AOD) was emphasized, along with the importance of AERONET gr

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