UMBC GESTAR II
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n December 2021, GESTAR II partnered with NASA Goddard Space Flight Center’s Earth Science Division to advance Earth science and Goddard’s leadership by providing a competitive environment to hire and retain high-quality scientists who are on track to be leaders at NASA, in academia and in industry. GESTAR II exemplifies the power of mentorship, embracing a career development strategy that only a university research center can provide. In GESTAR II, early-career researchers and students can build outstanding resumes, launching them to become the Earth science leaders of tomorrow.
Recent Submissions
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Reducing Aerosol Forcing Uncertainty By Combining Models with Satellite and Within-the-Atmosphere Observations: A Three-Way Street
(AGU, 2023-05-03)Aerosol forcing uncertainty represents the largest climate forcing uncertainty overall. Its magnitude has remained virtually undiminished over the past 20 years despite considerable advances in understanding most of the ... -
OH, HO₂, and RO₂ radical chemistry in a rural forest environment: Measurements, model comparisons, and evidence of a missing radical sink
(EGU, 2023-04-24)The hydroxyl (OH), hydroperoxy (HO₂), and organic peroxy (RO₂) radicals play important roles in atmospheric chemistry. In the presence of nitrogen oxides (NOₓ), reactions between OH and volatile organic compounds (VOCs) ... -
Two decades of land cover change and forest fragmentation in Liberia: Consequences for the contribution of nature to people
(SCB, 2023-04-11)The Guinean forests of West Africa have been identified as a global biodiversity hotspot due to its exceptional concentrations of endemic species and exceptional loss of habitats. The majority of what remains of the Guinean ... -
How well do Earth System Models reproduce observed aerosol changes during the Spring 2020 COVID-19 lockdowns?
(EGU, 2023-04-11)One side effect of the Spring 2020 COVID-19 lockdowns was a rapid reduction in aerosol and aerosol precursor emissions. These emission reductions provide a unique opportunity for model evaluation, and to assess the potential ... -
Effects of local meteorology and aerosols on ozone and nitrogen dioxide retrievals from OMI and pandora spectrometers in Maryland, USA during DISCOVER-AQ 2011
(Springer Nature, 2013-04-19)An analysis is presented for both ground- and satellite-based retrievals of total column ozone and nitrogen dioxide levels from the Washington, D.C., and Baltimore, Maryland, metropolitan area during the NASA-sponsored ... -
Diurnal variation of 340 nm Lambertian equivalent reflectivity due to clouds and aerosols over land and oceans
(AGU, 2011-06-08)Thirty years of satellite measurements of Lambert equivalent reflectivity (LER) at 340 nm have been analyzed to show the changes in diurnal LER that are associated with cloud and aerosol amounts. Five degree zonal mean ... -
NO₂ column amounts from ground-based Pandora and MFDOAS spectrometers using the direct-sun DOAS technique: Intercomparisons and application to OMI validation
(AGU, 2009-07-15)Vertical column amounts of nitrogen dioxide, C(NO₂), are derived from ground-based direct solar irradiance measurements using two new and independently developed spectrometer systems, Pandora (Goddard Space Flight Center) ... -
Validation of Ozone Monitoring Instrument nitrogen dioxide columns
(AGU, 2008-05-07)We review the standard nitrogen dioxide ( NO₂ ) data product (Version 1.0.), which is based on measurements made in the spectral region 415–465 nm by the Ozone Monitoring Instrument (OMI) on the NASA Earth Observing ... -
A new technique for retrieval of tropospheric and stratospheric ozone profiles using sky radiance measurements at multiple view angles: Application to a Brewer spectrometer
(AGU, 2008-03-27)This paper describes and applies a new technique for retrieving diurnal variability in tropospheric ozone vertical distribution using ground-based measurements of ultraviolet sky radiances. The measured radiances are ... -
Validation of daily erythemal doses from Ozone Monitoring Instrument with ground-based UV measurement data
(AGU, 2007-12-21)The Dutch-Finnish Ozone Monitoring Instrument (OMI) on board the NASA EOS Aura spacecraft is a nadir viewing spectrometer that measures solar reflected and backscattered light in a selected range of the ultraviolet and ... -
Comparison of satellite-derived UV irradiances with ground-based measurements at four European stations
(AGU, 2006-07-15)Satellite-derived ultraviolet (UV) irradiances may form the basis for establishing a global UV climatology, provided that their accuracy is confirmed against ground-based measurements of known quality. In this study, ... -
Total ozone mapping spectrometer retrievals of noon erythemal-CIE ultraviolet irradiance compared with Brewer ground-based measurements at El Arenosillo (southwestern Spain)
(AGU, 2007-06-07)During the last decade, methods have been developed for estimating ultraviolet (UV) irradiance reaching the Earth’s surface using satellite-measured backscattered UV radiances. The aim of this work is to compare UV products ... -
Measurements of nitrogen dioxide total column amounts using a Brewer double spectrophotometer in direct Sun mode
(AGU, 2006-03-02)NO₂ column amounts were measured for the past 2 years at Goddard Space Flight Center, Greenbelt, Maryland, using a Brewer spectrometer in direct Sun mode. A new‘ ‘bootstrap’’ method to calibrate the instrument is introduced ... -
Interactions between atmospheric composition and climate change – Progress in understanding and future opportunities from AerChemMIP, PDRMIP, and RFMIP
(EGU, 2023-04-04)The climate science community aims to improve our understanding of climate change due to anthropogenic influences on atmospheric composition and the Earth’s surface. Yet not all climate interactions are fully understood ... -
Future Atmospheric Rivers and Impacts on Precipitation: Overview of the ARTMIP Tier 2 High-Resolution Global Warming Experiment
(AGU, 2023-03-14)Atmospheric rivers (ARs) are long, narrow synoptic scale weather features important for Earth’s hydrological cycle typically transporting water vapor poleward, delivering precipitation important for local climates. ... -
Impact of Pacific Ocean heatwaves on phytoplankton community composition
(SpringerNature, 2023-03-13)Since 2013, marine heatwaves have become recurrent throughout the equatorial and northeastern Pacific Ocean and are expected to increase in intensity relative to historic norms. Among the ecological ramifications associated ... -
Diverging Trends in Rain-On-Snow Over High Mountain Asia
(AGU, 2023-03-13)Rain-on-snow (ROS) over snow-dominated regions such as High Mountain Asia (HMA) modulates snowmelt and runoff and is key contributor in influencing water availability and hazards (e.g., floods and landslides). We studied ... -
The coupling between tropical meteorology, aerosol lifecycle, convection, and radiation, during the Cloud, Aerosol and Monsoon Processes Philippines Experiment (CAMP²Ex)
(AMS, 2023-03-08)The NASA Cloud, Aerosol, and Monsoon Processes Philippines Experiment (CAMP² Ex) employed the NASA P-3, Stratton Park Engineering Company (SPEC) Learjet 35, and a host of satellites and surface sensors to characterize ... -
First Mapping of Monthly and Diurnal Climatology of Saharan Dust Layer Height Over the Atlantic Ocean From EPIC/DSCOVR in Deep Space
(AGU, 2023-03-02)The monthly and hourly climatology of Saharan dust layer height over the Atlantic, at a spatial resolution of ∼10 km, is obtained for the first time, via a passive remote sensing technique. The technique is applied to ... -
Historical Changes in Wind-Driven Ocean Circulation Can Accelerate Global Warming
(AGU, 2023-02-22)Mitigation and adaptation strategies for climate change depend on accurate climate projections for the coming decades. While changes in radiative heat fluxes are known to contribute to surface warming, changes to ocean ...
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