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View article: Changes in Stratospheric Climate and Age‐Of‐Air in Recent GEOS Systems Since MERRA‐2
Changes in Stratospheric Climate and Age‐Of‐Air in Recent GEOS Systems Since MERRA‐2 Open
Accurately modeling the large‐scale transport of trace gases and aerosols is critical for interpreting past (and projecting future) changes in atmospheric composition. Simulations of the stratospheric mean age‐of‐air continue to show persi…
View article: Stratospheric Water Vapor Beyond NASA's Aura MLS: Assimilating SAGE III/ISS Profiles for a Continued Climate Record
Stratospheric Water Vapor Beyond NASA's Aura MLS: Assimilating SAGE III/ISS Profiles for a Continued Climate Record Open
Stratospheric water vapor (SWV) is a greenhouse gas that has an important, yet uncertain, impact on the Earth's climate through its radiative effect and feedback. As the climate changes, it is thus critical to monitor and understand change…
View article: Impact of Assimilating Surface Sensitive IASI and CrIS Radiance Observations over Land in the NASA GEOS
Impact of Assimilating Surface Sensitive IASI and CrIS Radiance Observations over Land in the NASA GEOS Open
Satellite infrared radiances contain a wealth of information on Earth’s environment including its atmosphere and different surface properties. The potential of infrared (IR) radiances to further improve the quality of the data assimilation…
View article: Middle and upper atmosphere response to the February 2018 Sudden Stratospheric Warming revealed by MERRA-2 and SABER
Middle and upper atmosphere response to the February 2018 Sudden Stratospheric Warming revealed by MERRA-2 and SABER Open
The middle and upper atmosphere plays a critical role in linking the lower atmosphere forcing with ionospheric variability, especially during strong atmospheric activities. This study examines the dynamical response in the altitude range f…
View article: Envisioning U.S. Climate Predictions and Projections to Meet New Challenges
Envisioning U.S. Climate Predictions and Projections to Meet New Challenges Open
In the face of a changing climate, the understanding, predictions, and projections of natural and human systems are increasingly crucial to prepare and cope with extremes and cascading hazards, determine unexpected feedbacks and potential …
View article: GEOS Constituent Data Assimilation Beyond Aura MLS: Assimilating NASA SAGE III/ISS profiles of stratospheric water vapor for continued climate record
GEOS Constituent Data Assimilation Beyond Aura MLS: Assimilating NASA SAGE III/ISS profiles of stratospheric water vapor for continued climate record Open
Stratospheric water vapor (SWV) is a greenhouse gas that has a significant, yet uncertain, impact on the Earth’s climate through its radiative effect and feedback. As the climate changes, it is thus critical to monitor and understand chang…
View article: Envisioning U.S. Climate Predictions and Projections to Meet New Challenges
Envisioning U.S. Climate Predictions and Projections to Meet New Challenges Open
In the face of a changing climate, the understanding, predictions and projections of natural and human systems are increasingly crucial to prepare and cope with extremes and cascading hazards, determine unexpected feedbacks and potential t…
View article: Application of Satellite‐Based Detections of Arctic Bromine Explosion Events Within GEOS‐Chem
Application of Satellite‐Based Detections of Arctic Bromine Explosion Events Within GEOS‐Chem Open
During polar spring, periods of elevated tropospheric bromine drive near complete removal of surface ozone. These events impact the tropospheric oxidative capacity and are an area of active research with multiple approaches for representin…
View article: Improved advection, resolution, performance, and community access in the new generation (version 13) of the high-performance GEOS-Chem global atmospheric chemistry model (GCHP)
Improved advection, resolution, performance, and community access in the new generation (version 13) of the high-performance GEOS-Chem global atmospheric chemistry model (GCHP) Open
We describe a new generation of the high-performance GEOS-Chem (GCHP) global model of atmospheric composition developed as part of the GEOS-Chem version 13 series. GEOS-Chem is an open-source grid-independent model that can be used online …
View article: Satellite-Based Emission Estimates of Arctic Bromine and Application within GEOS-Chem
Satellite-Based Emission Estimates of Arctic Bromine and Application within GEOS-Chem Open
During polar spring, periods of elevated tropospheric bromine known as “bromine explosion events” are associated with near complete removal of surface ozone. The satellite-based Ozone Monitoring Instrument (OMI) provides total column measu…
View article: NASA GEOS Composition Forecast Modeling System GEOS‐CF v1.0: Stratospheric Composition
NASA GEOS Composition Forecast Modeling System GEOS‐CF v1.0: Stratospheric Composition Open
The NASA Goddard Earth Observing System (GEOS) Composition Forecast (GEOS‐CF) provides recent estimates and 5‐day forecasts of atmospheric composition to the public in near‐real time. To do this, the GEOS Earth system model is coupled with…
View article: Comment on gmd-2022-42
Comment on gmd-2022-42 Open
We describe a new generation of the high-performance GEOS-Chem (GCHP) global model of atmospheric composition developed as part of the GEOS-Chem version 13 series. GEOS-Chem is an open-source grid-independent model that can be used online …
View article: Joint Collaboration on Coupled Data Assimilation and Modeling
Joint Collaboration on Coupled Data Assimilation and Modeling Open
For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses). Corresponding author: Youngsun Jung, [email protected]
View article: Improved Advection, Resolution, Performance, and Community Access in the New Generation (Version 13) of the High Performance GEOS-Chem Global Atmospheric Chemistry Model (GCHP)
Improved Advection, Resolution, Performance, and Community Access in the New Generation (Version 13) of the High Performance GEOS-Chem Global Atmospheric Chemistry Model (GCHP) Open
We describe a new generation of the high-performance GEOS-Chem (GCHP) global model of atmospheric composition developed as part of the GEOS-Chem version 13 series. GEOS-Chem is an open-source grid-independent model that can be used online …
View article: Regional impacts of COVID-19 on carbon dioxide detected worldwide from space
Regional impacts of COVID-19 on carbon dioxide detected worldwide from space Open
The regional impact of COVID-19 on atmospheric carbon dioxide is observable from space.
View article: NASA GEOS Composition Forecast Modeling System GEOS-CF v1.0: Stratospheric composition
NASA GEOS Composition Forecast Modeling System GEOS-CF v1.0: Stratospheric composition Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Journal of Advances in Modeling Earth Systems (JAMES). ESSOAr is a venue for early communication or feedback before peer review. Data ma…
View article: Grid-stretching capability for the GEOS-Chem 13.0.0 atmospheric chemistry model
Grid-stretching capability for the GEOS-Chem 13.0.0 atmospheric chemistry model Open
Modeling atmospheric chemistry at fine resolution globally is computationally expensive; the capability to focus on specific geographic regions using a multiscale grid is desirable. Here, we develop, validate, and demonstrate stretched gri…
View article: Augmenting the Standard Operating Procedures of Health and Air Quality Stakeholders With NASA Resources
Augmenting the Standard Operating Procedures of Health and Air Quality Stakeholders With NASA Resources Open
The combination of air quality (AQ) data from satellites and low‐cost sensor systems, along with output from AQ models, have the potential to augment high‐quality, regulatory‐grade data in countries with in situ monitoring networks and pro…
View article: GEOS/OCO-2 COVID-19 analysis CO2 fields
GEOS/OCO-2 COVID-19 analysis CO2 fields Open
The Goddard Earth Observing System/Orbiting Carbon Observatory 2 (GEOS/OCO-2) atmospheric carbon monitoring system tracks changes in global atmospheric CO2 by ingesting OCO-2 Build 10 XCO2 full-physics retrievals into GEOS. It produces out…
View article: GEOS/OCO-2 COVID-19 analysis CO2 fields
GEOS/OCO-2 COVID-19 analysis CO2 fields Open
The Goddard Earth Observing System/Orbiting Carbon Observatory 2 (GEOS/OCO-2) atmospheric carbon monitoring system tracks changes in global atmospheric CO2 by ingesting OCO-2 Build 10 XCO2 full-physics retrievals into GEOS. It produces out…
View article: ATom: GEOS-5 Derived Meteorological Conditions and Tagged Tracers Along Flight Tracks
ATom: GEOS-5 Derived Meteorological Conditions and Tagged Tracers Along Flight Tracks Open
This dataset provides modeled meteorological conditions and tagged-CO tracer concentrations along ATom flight paths derived from the Goddard Earth Observing System Version 5 (GEOS-5) data assimilation products from the Global Modeling and …
View article: Impacts of the Eruption of Mount Pinatubo on Surface Temperatures and Precipitation Forecasts With the NASA GEOS Subseasonal‐to‐Seasonal System
Impacts of the Eruption of Mount Pinatubo on Surface Temperatures and Precipitation Forecasts With the NASA GEOS Subseasonal‐to‐Seasonal System Open
A contemporary seasonal forecasting system is used to study the impacts of a volcanic sulfate injection into the stratosphere on the seasonal forecasts for surface temperatures, the El Niño Southern Oscillation (ENSO), and precipitation. T…
View article: Bias-correcting carbon fluxes derived from land-surface satellite data for retrospective and near-real-time assimilation systems
Bias-correcting carbon fluxes derived from land-surface satellite data for retrospective and near-real-time assimilation systems Open
The ability to monitor and understand natural and anthropogenic variability in atmospheric carbon dioxide (CO2) is a growing need of many stakeholders across the world. Systems that assimilate satellite observations, given their short late…
View article: Description of the NASA GEOS Composition Forecast Modeling System GEOS‐CF v1.0
Description of the NASA GEOS Composition Forecast Modeling System GEOS‐CF v1.0 Open
The Goddard Earth Observing System composition forecast (GEOS‐CF) system is a high‐resolution (0.25°) global constituent prediction system from NASA's Global Modeling and Assimilation Office (GMAO). GEOS‐CF offers a new tool for atmospheri…
View article: Near real-time air quality forecasts using the NASA GEOS model
Near real-time air quality forecasts using the NASA GEOS model Open
<p>NASA's Global Modeling and Assimilation Office (GMAO) produces high-resolution global forecasts for weather, aerosols, and air quality. The NASA Global Earth Observing System (GEOS) model has been expanded to provide global near-r…
View article: Satellite-Based Emission Estimates of Tropospheric Bromine During Arctic Spring and Impact on Surface Ozone&#160;
Satellite-Based Emission Estimates of Tropospheric Bromine During Arctic Spring and Impact on Surface Ozone  Open
<p>The OMI satellite instrument provides total column measurements of bromine monoxide (BrO) with daily global coverage. Reactive bromine compounds (Br and BrO) catalytically destroy ozone in both the stratosphere and troposphere. Pe…
View article: Grid-Stretching Capability for the GEOS-Chem 13.0.0 AtmosphericChemistry Model
Grid-Stretching Capability for the GEOS-Chem 13.0.0 AtmosphericChemistry Model Open
Modeling atmospheric chemistry at fine resolution globally is computationally expensive; the capability to focus on specific geographic regions using a multiscale grid is desirable. Here, we develop, validate, and demonstrate stretched-gri…
View article: Regional Impacts of COVID-19 on Carbon Dioxide Detected Worldwide from Space
Regional Impacts of COVID-19 on Carbon Dioxide Detected Worldwide from Space Open
Activity reductions in early 2020 due to the Coronavirus Disease 2019 pandemic led to unprecedented decreases in carbon dioxide (CO2) emissions. Despite their record size, the resulting atmospheric signals are smaller than and obscured by …
View article: Global Impact of COVID-19 Restrictions on the Surface Concentrations of Nitrogen Dioxide and Ozone
Global Impact of COVID-19 Restrictions on the Surface Concentrations of Nitrogen Dioxide and Ozone Open
Social-distancing to combat the COVID-19 pandemic has led to widespread reductions in air pollutant emissions. Quantifying these changes requires a business as usual counterfactual that accounts for the synoptic and seasonal variability of…