The Joint Center for Earth Systems Technology (JCET) was formed under a Cooperative agreement between the Earth Science Division of NASA Goddard Space Flight Center (GSFC) and the University of Maryland, Baltimore County (UMBC) in 1995. The JCET family consists of its business staff, students, research faculty, GSFC Sponsors, appointed fellows and affiliated tenured/tenure-track faculty. JCET is an innovative center where these scientists interact in a seamless fashion with the support of an efficient business and administrative unit.

Recent Submissions

  • Dust Detection in Satellite Data using Convolutional Neural Networks 

    Cai, Changjie; Lee, Jangho; Shi, Yingxi Rona; Zerfas, Camille; Guo, Pei (HPCF UMBC, 2019)
    Atmospheric dust is known to cause health ailments and impacts earth’s climate and weather patterns. Due to the many issues atmospheric dust contributes to, it is important to study dust patterns and how it enters the ...
  • Clarifying linkages between canopy solar induced fluorescence (SIF) and physiological function for high latitude vegetation 

    Huemmrich, Karl F.; Campbell, Petya P.K.; Joiner, Joanna; Yoshida, Yasuko; Tweedie, Craig; Middleton, Elizabeth (National Aeronautics and Space Administration, 2018)
    Remote sensing of Solar-Induced Fluorescence (SIF) is a growing and dynamic research field that has the potential to provide innovative tools for monitoring plant status and photosynthetic function and transform global ...
  • Benchmarking Parallel K-Means Cloud Type Clustering from Satellite Data 

    Barajas, Carlos; Guo, Pei; Mukherjee, Lipi; Hoban, Susan; Wang, Jianwu; Jin, Daeho; Gangopadhyay, Aryya; Gobbert, Matthias K. (Springer, Cham, 2019-10-08)
    The study of clouds, i.e., where they occur and what are their characteristics, plays a key role in the understanding of climate change. Clustering is a common machine learning technique used in atmospheric science to ...
  • Reply to “A comment on “A test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth gravity model, by I. Ciufolini et al.”” 

    Ciufolini, Ignazio; Pavlis, Erricos C.; Ries, John; Matzner, Richard; Koenig, Rolf; Paolozzi, Antonio; Sindoni, Giampiero; Gurzadyan, Vahe; Penrose, Roger; Paris, Claudio (Springer Berlin Heidelberg, 2018-10-30)
    In 2016, we published “A test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth’s gravity model. Measurement of Earth’s dragging of inertial frames [1]”, a measurement of frame-dragging, a ...
  • Preface to the second special issue on Laser Ranging 

    Pavlis, Erricos C.; Luceri, Vincenza; Otsubo, Toshimichi; Schreiber, Ulrich (Springer Berlin Heidelberg, 2019-10-10)
  • A test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth gravity model 

    Ciufolini, Ignazio; Paolozzi, Antonio; Pavlis, Erricos C.; Koenig, Rolf; Ries, John; Gurzadyan, Vahe; Matzner, Richard; Penrose, Roger; Sindoni, Giampiero; Paris, Claudio; Khachatryan, Harutyun; Mirzoyan, Sergey (Springer Berlin Heidelberg, 2016-03-04)
    We present a test of general relativity, the measurement of the Earth’s dragging of inertial frames. Our result is obtained using about 3.5 years of laser-ranged observations of the LARES, LAGEOS, and LAGEOS 2 laser-ranged ...
  • Studies on the materials of LARES 2 satellite 

    Paolozzi, A.; Sindoni, G.; Felli, F.; Pilone, D.; Brotzu, A.; Ciufolini, I.; Pavlis, E. C.; Paris, C. (Springer Berlin Heidelberg, 2019-11-16)
    LARES 2 is an Italian Space Agency (ASI) satellite designed for testing with unprecedented accuracy frame-dragging, a fundamental prediction of General Relativity, and to contribute to space geodesy with a precision higher ...
  • Unidentified Gamma-ray Sources as Targets for Indirect Dark Matter Detection with the Fermi-Large Area Telescope 

    Coronado-Blázquez, Javier; Sánchez-Conde, Miguel A.; Domínguez, Alberto; Aguirre-Santaella, Alejandra; Di Mauro, Mattia; Mirabald, Néstor; Nieto, Daniel; Charles, Eric (2019-06)
    One of the predictions of the ΛCDM cosmological framework is the hierarchical formation of structure, giving rise to dark matter (DM) halos and subhalos. When the latter are massive enough they retain gas (i.e., baryons) ...
  • An improved test of the general relativistic effect of frame-dragging using the LARES and LAGEOS satellites 

    Ciufolini, Ignazio; Paolozzi, Antonio; Pavlis, Erricos C.; Sindoni, Giampiero; Ries, John; Matzner, Richard; Koenig, Rolf; Paris, Claudio; Gurzadyan, Vahe; Penrose, Roger (Springer Nature, 2019-10-23)
    We report the improved test of frame-dragging, an intriguing phenomenon predicted by Einstein’s General Relativity, obtained using 7 years of Satellite Laser Ranging (SLR) data of the satellite LARES (ASI, 2012) and 26 ...
  • Satellite Laser-Ranging as a Probe of Fundamental Physics 

    Ciufolini, Ignazio; Matzner, Richard; Paolozzi, Antonio; Pavlis, Erricos C.; Sindoni, Giampiero; Ries, John; Gurzadyan, Vahe; Koenig, Rolf (Nature Research, 2019-06)
    Satellite laser-ranging is successfully used in space geodesy, geodynamics and Earth sciences; and to test fundamental physics and specific features of General Relativity. We present a confirmation to approximately one ...
  • Translating the Physics of Snowfall to Radar-Based Validation of GPM 

    Petersen, W.; Pettersen, C.; Kirstetter, P.; Moisseev, D.; Lerber, A. von; Kulie, M.; Marks, David; Tokay, A.; Wolff, D.; Hudak, D. (NASA Technical Reports Server, 2019-06-19)
  • Atmospheric Acetaldehyde: Importance of Air‐Sea Exchange and a Missing Source in the Remote Troposphere 

    Wang, Siyuan; Hornbrook, Rebecca S.; Hills, Alan; Emmons, Louisa K.; Tilmes, Simone; Lamarque, Jean‐François; Jimenez, Jose L.; Campuzano‐Jost, Pedro; Nault, Benjamin A.; Crounse, John D.; Wennberg, Paul O.; Kim, Michelle; Allen, Hannah; Ryerson, Thomas B.; Thompson, Chelsea R.; Peischl, Jeff; Moore, Fred; Nance, David; Hall, Brad; Elkins, James; Tanner, David; Huey, L. Gregory; Hall, Samuel R.; Ullmann, Kirk; Orlando, John J.; Tyndall, Geoff S.; Flocke, Frank M.; Ray, Eric; Hanisco, Thomas F.; Wolfe, Glenn M.; Clair, Jason St.; Commane, Róisín; Daube, Bruce; Barletta, Barbara; Blake, Donald R.; Weinzierl, Bernadett; Dollner, Maximilian; Conley, Andrew; Vitt, Francis; Wofsy, Steven C.; Riemer, Daniel D.; Apel, Eric C. (American Geophysical Union, 2019-05-28)
    Abstract We report airborne measurements of acetaldehyde (CH₃CHO) during the first and second deployments of the National Aeronautics and Space Administration Atmospheric Tomography Mission (ATom). The budget of CH₃CHO ...
  • Hydrocarbon Removal in Power Plant Plumes Shows Nitrogen Oxide Dependence of Hydroxyl Radicals 

    Gouw, J. A. de; Parrish, D. D.; Brown, S. S.; Edwards, P.; Gilman, J. B.; Graus, M.; Hanisco, T. F.; Kaiser, J.; Keutsch, F. N.; Kim, S.‐W.; Lerner, B. M.; Neuman, J. A.; Nowak, J. B.; Pollack, I. B.; Roberts, J. M.; Ryerson, T. B.; Veres, P. R.; Warneke, C.; Wolfe, G. M. (American Geophysical Union, 2019-07-05)
    Abstract During an airborne study in the Southeast United States, measured mixing ratios of biogenic hydrocarbons were systematically lower in air masses containing enhanced nitrogen oxides from power plants, which we ...
  • SBG Applications: Aquatic Ecosystems Including Corals, Harmful Algal Blooms, Water Quality, Restoration 

    Uz, Stephanie; Tzortziou, Maria; Guild, Liane; Ortiz, Joe; Turpie, Kevin; Lee, Christine; Stravros, Natasha; Luvall, Jeff; Glenn, Nancy (NASA Technical Reports Server, 2019-06-12)
  • Learning from GES DISC's MLS and OMI Data Users: Metrics Matter 

    Wei, Jennifer; Shen, Suhung; Shie, Chung-Lin; Johnson, James; Lei, Guang-Dih; Owens, Elaine; Alcott, Gary; Meyer, David J. (NASA Technical Reports Server, 2019-08-27)
    It has been over 15 years since Aura research satellite launched in 2004 to observe the Earth's ozone layer, air quality, and climate from four different instruments - the High Resolution Dynamics Limb Sounder (HIRDLS), ...
  • A Tale of Two Dust Storms: analysis of a complex dust event in the Middle East 

    Miller, Steven D.; Grasso, Louie D.; Bian, Qijing; Kreidenweis, Sonia M.; Dostalek, Jack F.; Solbrig, Jeremy E.; Bukowski, Jennifer; van den Heever, Susan C.; Wang, Yi; Xu, Xiaoguang; Wang, Jun; Walker, Annette L.; Wu, Ting-Chi; Zupanski, Milija; Chiu, Christine; Reid, Jeffrey S. (EGU, 2019-09-24)
    Lofted mineral dust over data-sparse regions presents considerable challenges to satellite-based remote sensing methods and numerical weather prediction alike. The southwest Asia domain is replete with such examples, with ...
  • Why do models overestimate surface ozone in the Southeast United States 

    Travis, Katherine R.; Jacob, Daniel J.; Fisher, Jenny A.; Kim, Patrick S.; Marais, Eloise A.; Zhu, Lei; Yu, Karen; Miller, Christopher C.; Yantosca, Robert M.; Sulprizio, Melissa P.; Thompson, Anne M.; Wennberg, Paul O.; Crounse, John D.; St. Clair, Jason M.; Cohen, Ronald C.; Laughner, Joshua L.; Dibb, Jack E.; Hall, Samuel R.; Ullmann, Kirk; Wolfe, Glenn M.; Pollack, Illana B.; Peischl, Jeff; Neuman, Jonathan A.; Zhou, Xianliang (Copernicus Publications, 2016-11-01)
    Ozone pollution in the Southeast US involves complex chemistry driven by emissions of anthropogenic nitrogen oxide radicals (NOx  ≡  NO + NO₂) and biogenic isoprene. Model estimates of surface ozone concentrations tend to ...
  • Assessing Water Budget Sensitivity to Precipitation Forcing Errors in Potomac River Basin Using the VIC Hydrologic Model CyberTraining: Big Data + High-Performance Computing + Atmospheric Sciences 

    Majumder, Reetam; Walid, Redwan; Zheng, Jianyu (2019)
    The Potomac River Basin is a watershed located on the East Coast of the USA across West Virginia, Virginia, Pennsylvania, Maryland, and the District of Columbia. Inter-annual variations in precipitation makes it challenging ...

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