Search Results - "Pernak, Rick"

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  1. 1

    Space-based observations of tropospheric ethane map emissions from fossil fuel extraction by Brewer, Jared F., Millet, Dylan B., Wells, Kelley C., Payne, Vivienne H., Kulawik, Susan, Vigouroux, Corinne, Cady-Pereira, Karen E., Pernak, Rick, Zhou, Minqiang

    Published in Nature communications (07-09-2024)
    “…Ethane is the most abundant non-methane hydrocarbon in the troposphere, where it impacts ozone and reactive nitrogen and is a key tracer used for partitioning…”
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    Journal Article
  2. 2

    Hard X-Ray Flare Source Sizes Measured with the Ramaty High Energy Solar Spectroscopic Imager by Dennis, Brian R, Pernak, Rick L

    Published in The Astrophysical journal (20-06-2009)
    “…Ramaty High Energy Solar Spectroscopic Imager (RHESSI) observations of 18 double hard X-ray sources seen at energies above 25 keV are analyzed to determine the…”
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    Journal Article
  3. 3

    Forecasting Surface O_3 in Texas Urban Areas Using Random Forest and Generalized Additive Models by Rick Pernak, Matthew Alvarado, Chantelle Lonsdale, Marikate Mountain, Jennifer Hegarty, Thomas Nehrkorn

    Published in Aerosol and Air Quality Research (01-12-2019)
    “…We developed and evaluated three types of statistical forecasting models (quantitative, probabilistic, and classification) for predicting the maximum daily…”
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    Journal Article
  4. 4

    Benchmark Calculations of Radiative Forcing by Greenhouse Gases by Pincus, Robert, Buehler, Stefan A., Brath, Manfred, Crevoisier, Cyril, Jamil, Omar, Franklin Evans, K., Manners, James, Menzel, Raymond L., Mlawer, Eli J., Paynter, David, Pernak, Rick L., Tellier, Yoann

    “…Changes in concentrations of greenhouse gases lead to changes in radiative fluxes throughout the atmosphere. The value of this change, the instantaneous…”
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    Journal Article
  5. 5
  6. 6

    HARD X-RAY FLARE SOURCE SIZES MEASURED WITH THE RAMATY HIGH ENERGY SOLAR SPECTROSCOPIC IMAGER by Dennis, Brian R., Pernak, Rick L.

    Published in The Astrophysical journal (20-06-2009)
    “…Ramaty High Energy Solar Spectroscopic Imager (RHESSI) observations of 18 double hard X-ray sources seen at energies above 25 keV are analyzed to determine the…”
    Get full text
    Journal Article
  7. 7

    Benchmark Calculations of Radiative Forcing by Greenhouse Gases by Pincus, Robert, Buehler, Stefan A., Brath, Manfred, Crevoisier, Cyril, Jamil, Omar, Evans, K. Franklin, Manners, James, Menzel, Raymond L., Mlawer, Eli J., Paynter, David, Pernak, Rick L., Tellier, Yoann

    “…Changes in concentrations of greenhouse gases lead to changes in radiative fluxes throughout the atmosphere. The value of this change, the instantaneous…”
    Get full text
    Journal Article
  8. 8

    Spectral Scaling Technique to Determine Extreme Carrington-level Geomagnetically Induced Currents Effects by Winter, Lisa M, Gannon, Jennifer, Pernak, Rick, Huston, Stu, Quinn, Richard, Pope, Edward, Ruffenach, Alexis, Bernardara, Pietro, Crocker, Nicholas

    Published 20-04-2017
    “…Space weather events produce variations in the electric current in the Earth's magnetosphere and ionosphere. From these high altitude atmospheric regions,…”
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    Journal Article
  9. 9

    Comparing SSN Index to X-ray Flare and Coronal Mass Ejection Rates from Solar Cycles 22-24 by Winter, Lisa M, Pernak, Rick, Balasubramaniam, K. S

    Published 02-05-2016
    “…The newly revised sunspot number series allows for placing historical geoeffective storms in the context of several hundred years of solar activity. Using…”
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    Journal Article