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.

May 2018

Recent decline in lower stratospheric ozone attributed to circulation changes

April 2018

Stratospheric Intrusion-Influenced Ozone Air Quality Exceedances Investigated in the NASA MERRA-2 Reanalysis

February 2018

Active Winter Weather Forecasted over North America follow a Major Stratospheric Sudden Warming Event

December 2017

Forecasting the Mt. Agung Ash Cloud Using GEOS

MERRA-2 Data on a Cube

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

KORUS-AQ

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

Tropospheric & Stratospheric circulation changes related to cold outbreak over eastern US during week of 8-14 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

Assimilating SMOS Brightness Temperatures into the NASA GEOS-5 Catchment Land Surface Model for Soil Moisture Estimation

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

A Neural-Network-Based Bias Correction Enhances the Value of Aquarius Sea Surface Salinity (SSS) Data

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]

January 2013

Hurricane Sandy Forecasts with GEOS-5 [PDF]

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