Science Snapshots
Below are titles of and links to concise summaries of work on specific scientific investigations by GMAO staff researchers and their colleagues. Details about refereed scientific papers published by the GMAO staff are compiled on our GMAO Publications page.
October 2024
Hurricanes Helene and Milton Showcase the Range of Tropical Cyclone Hazards
September 2024
August 2024
The Hottest July on Earth as Analyzed by MERRA-2
July - August 2024 Saharan Dust Transport
July 2024
GEOS-Exp 2km Highlights Severe Weather Outbreak, Selected For 2024 HWT Forecast Experiment
May 2024
GEOS-S2S-2 Predicts 2024 Mongolia Dzud
April 2024
March 2024 Sudan Heat Wave Through GEOS-S2S-2
April 2024 Solar Eclipse - 3-Day Cloud Cover Forecast
March 2024
MJO Propagation and Associated Moist Dynamics in Version 3 of GEOS-S2S Forecast System
April 2024 Solar Eclipse – Clear or Cloudy Skies?
February 2024
Lake Michigan Lake Effect Snow and the GEOS-4km Exp Model
Tropcial Cyclone Akara Brews Near Brazil
January 2024
Sudden Stratospheric Warming Event
December 2023
Early Season Snowfall in the Northeast US
November 2023
Google Earth Engine Data Fusion Tool to Support Air Quality Managers
Direct Assimilation of AVHRR Satellite Radiance Mmeasurements in a Reanalysis System
October 2023
Meteorologic Analysis of the August 2023 Maui Wildfires
GEOS S2Sv2 Indian Ocean Dipole Forecast and its Potential Global Impacts
September 2023
July 2023
Sea surface currents and salinity near the maritime continent
Ozone extremes over the U.S. tracked by NASA’s composition forecasting system
June 2023
Exceptional Wildfire Smoke Across Canada Inundates the Northeastern United States
May 2023
A New Minimum in Southern Hemisphere Sea Ice Extent
A New Generation of GMAO Apps in Google Earth Engine
April 2023
Health Impacts from Wildfires in 2021 Over North America
March 2023
Atmospheric Rivers: More Precipitation Saturates California
NASA GMAO Supports Successful Test of an Inflatable Decelerator (LOFTID)
February 2023
Atmospheric Rivers Inundate California
January 2023
Stratospheric Ozone Forecasts are Realistic when using the Chemical Mechanism in the GEOS-CF System
December 2022
Simulating the 2022 Mauna Loa volcanic eruption using the GEOS model
November 2022
Using Observations from NASA’s CAMP2Ex Campaign to Evaluate Smoke Optical Properties in GEOS
October 2022
Stratospheric Circulation Changes Associated with the Hunga Tonga Hunga Ha'apai Eruption
September 2022
Dynamical Drivers of the Exceptional Warmth Over Siberia During the Spring of 2020
August 2022
Continental Patterns of Bird Migration Linked to Climate Variability
The Detection of Atmospheric Rivers in Reanalyses and its Influence on Precipitation
July 2022
Unprecedented Amount of Water Vapor Injected into the Stratosphere by the Hunga Tonga Eruption
May 2022
A Dusty Atmospheric River Brings Floods to the Middle East
April 2022
An Atmospheric Blocking Event Shatters Temperature Records in East Antarctica
The Exceptional Warmth over Eurasia during JFM 2020: Role of the Tropics
March 2022
A 3D View of an Atmospheric River from an Earth System Model
February 2022
January 2022
The Many Faces of the Stratosphere
December 2021
Regional Impacts of COVID-19 on Carbon Dioxide Detected Worldwide from Space
October 2021
SMAP Observations Can Improve Near-Surface Humidity and Temperature in GEOS Weather Analysis
September 2021
Sub-city Scale Hourly Air Quality Forecasting by Combining Models with Observations
August 2021
2021 Greenland Ice Sheet Melt Events: A Variety Pack
The Abnormally Hot June 2021 in the Western U.S.: A MERRA-2 perspective
July 2021
An Early Start to the North American Biomass Burning Season in 2021
A Dynamical View of the Record Heatwave of June 2021 in Western North America
June 2021
The anomalous 2019 polar stratospheric chemistry in GMAO’s assimilation experiments
April 2021
GEOS-S2S Predicted 2020 Summertime Precipitation Anomalies Three Months in Advance
March 2021
Rare Atmospheric River Caused Record Floods Across the Middle East
February 2021
Impact of a regional US drought on land and atmospheric carbon
Was 2020 an exceptional year for fires in the Northern Hemisphere extratropics?
January 2021
Water Limitations in the Tropics Offset Carbon Uptake from Arctic Greening
December 2020
Long-Term Improvements of GEOS-FP Forecast Skill
September 2020
An Analysis of Ocean, Land and Ice
August 2020
July 2020
All-time Highs in the High Latitudes: Siberia 2020
Atmospheric Dust Rivers: Saharan Dust Makes the Journey to the Americas
June 2020
Major Advance in MJO Prediction Skill in GMAO’s Near Real Time Seasonal Forecasts
May 2020
GEOS Captures Tropical Cyclone-Like System Trudy over the Mediterranean Sea
April 2020
Developing an Ozone Climate Data Record from Assimilation of High-Resolution Satellite Observations
January 2020
Global Transport of Smoke from Australian Bushfires
Snow Depth Variability in the Northern Hemisphere Mountains Observed From Space
December 2019
GEOS Composition Forecasting System (GEOS-CF): Capabilities and complexities
Assessing the Impact of Nearly 40 Years of Observations on Short-Range MERRA-2 Forecasts
November 2019
Fires in Latin America and Carbon Monoxide
High Resolution GEOS Forecasts of Super Typhoon Hagibis
October 2019
American and European Heatwaves During Summer 2019
An Unusual Train of Waves in the Southern Hemisphere Stratosphere
Global Assessment of Added Value in the SMAP Level-4 Soil Moisture Product
September 2019
Length Scales of Hydrological Variability as Inferred from SMAP Soil Moisture Retrievals
Impacts of 2019 Boreal Forest Fires on Atmospheric Pollution
August 2019
Historic Greenland Ice Melt Event Follows European Heatwave
July 2019
May 2019
Impact of Satellite Sea Surface Salinity Observations on ENSO Predictions
April 2019
Assimilation of Satellite Soil Moisture for Improved Atmospheric Reanalyses
A Scale-Aware Representation of Convection in the GEOS Model
March 2019
Using Loon Stratospheric Balloon Observations in Global Assimilation
The Roles of Climate Change and Climate Variability in the 2017 Atlantic Hurricane Season
August 2018
Mid-Atlantic Local Area Flooding, July 21-25, 2018
May 2018
Joint Assimilation of SMOS brightness Temperature and GRACE Terrestrial Water Storage Observations
Recent decline in lower stratospheric ozone attributed to circulation changes
April 2018
February 2018
December 2017
Forecasting the Mt. Agung Ash Cloud Using GEOS
October 2017
Validation of Aquarius and SMAP Sea Surface Salinity in the Tropics
Summer 2017: Signals of Weather Extrema Shown in the Aerosol Fields
NASA’s OCO-2 mission tracks the influence of El Niño on atmospheric CO2
Space-based and Data Assimilation Views of Total Ozone
August 2017
Influence of ENSO on Wintertime Precipitation
June 2017
High-Resolution Global Modeling of Atmospheric Chemical Composition
An Icelandic low spins in the North Atlantic
A New Look at the 2015-2016 El Niño
May 2017
The Evolution and Anatomy of the GEOS Atmospheric Model
GMAO's Hybrid Ensemble-Variational System Gets an Upgrade
April 2017
Taking Air Pollution to the Extreme
January 2017
SMAP Soil Moisture Skillful in Determining Subsequent Streamflow
SMAP Soil Moisture and Drought in Ethiopia
Estimate of carbon fluxes generated with the NASA GMAO Catchment-CN model
December 2016
OCO-2 and GEOS Team Up to Produce a New View of Carbon Dioxide
November 2016
A Slinky-fied View of a Frozen-In Anticyclone in MERRA-2
The ENRR Field Campaign: Improving Our Response to El Niño
September 2016
NASA/GMAO Pulls the Plug on La Niña
Rebooting the Quasi-Biennial Oscillation (QBO)
August 2016
Forecasting the Ft. McMurray Fire in GEOS
July 2016
Sierra Nevada snowpack deficit in winter 2015 depicted by a Landsat-era Reanalysis
June 2016
Sensitivity to dust during the formation of hurricane Helene
May 2016
SMAP Level 4 Soil Moisture (L4_SM)
Tracking sudden stratospheric warming (SSW) onset with the adjoint
The Validated (Version 2) SMAP Level 4 Carbon Product Suite (L4_C)
April 2016
DJF 2015-2016: Warmest Arctic Winter in the Satellite Era
February 2016
MERRA-2: Improved Representation of Extreme Precipitation Events
January 2016
NASA's GEOS provides a satellite view of historic winter storm
"Historical" Hurricanes in MERRA-2
December 2015
The Global Pulse of Carbon Dioxide in the 21st Century
MERRA-2 Global Aerosol Distributions
MERRA-2 Quasi-Biennial Oscillation
Heat Waves and Cold Spells of the 21st Century
1.5-km Global Cloud-Resolving Simulations with GEOS-5
October 2015
SMAP Level 4 Surface and Root Zone Soil Moisture (L4_SM)
The NASA SMAP Level 4 Carbon (L4_C) Product Suite
A Stratospheric Intrusion Event on 29 April 2012 Captured by the MERRA-2 Reanalysis
September 2015
MERRA-2: Observing System Time Series
MERRA-2: Global Precipitation Time Series
MERRA-2: Greenland Ice Sheet Surface Mass Balance
August 2015
Hurricane Katrina with GEOS-5 (10-years of model improvements)
Influence of Orography on the Stratosphere
July 2015
Mapping Man-made CO2 from Space
GEOS-5 Seasonal El Niño Forecast: July 2015
June 2015
May 2015
Real-Time Assimiliation of ISS-RapidScat Observations
Observations Assimilated at NASA's GMAO: A six-hour snapshot
February 2015
The Tropopause Inversion Layer in GEOS-5: A Connection with Stratospheric Circulation
December 2014
Sulfur Dioxide and Sulfate in the 7km GEOS-5 Nature Run
Spring Hydrology Determines Summer Net Carbon Uptake in Northern Ecosystems
November 2014
7km GEOS-5 Nature Run Realism of Global Energy Budget and Land-Surface Features
7km GEOS-5 Nature Run Validation of Cloud and Radiation Fields
7km GEOS-5 Nature Run Mesoscale Convective Complexes
QFED - High Resolution Global Fire Emissions
October 2014
GEOS-5 Aerosol Analysis for the SEAC4RS Field Campaign
Tracking the Influence of Stratospheric Air in Aircraft Campaigns
Forecasting in the Southern Beaufort Sea for ARISE
Analysis and Prediction of the Upper Ocean Using GEOS iODAS
September 2014
August 2014
Using GPM Data for Cloud and Precipitation Analyses
September 2013
Verifying GEOS-5 sulfur dioxide simulations [PDF]
August 2013
Sea Surface Temperatures, Heat, and Drought in the U.S. [PDF]
February 2013
GEOS-5 and the Stratospheric Sudden Warming Event [PDF]
Simulating the Transport of Aerosols with GEOS-5
