Showing 41 - 60 results of 77 for search '"National Center for Atmospheric Research"', query time: 0.08s Refine Results
  1. 41
    The importance of sub-meter-scale snow roughness on conductive heat flux of Arctic sea ice

    The importance of sub-meter-scale snow roughness on conductive heat flux of Arctic sea ice by David Clemens-Sewall, Chris Polashenski, Don Perovich, Melinda Anne Webster

    Published 2024-01-01
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  2. 42
    Ten Years of Earth and Space Science: Introduction to the Special Collection

    Ten Years of Earth and Space Science: Introduction to the Special Collection by Graziella Caprarelli, David Baratoux, Subrahmanyam Bulusu, Cinzia Cervato, Paolo Diviacco, Alina Donea, Steven J. Fletcher, Helen M. Glaves, Cathleen E. Jones, Gaopeng Lu, Astrid Maute, Franklin P. Mills, Sara C. Pryor, Kristy Tiampo, Zunyi Xie

    Published 2025-01-01
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  3. 43
    World Climate Research Programme lighthouse activity: an assessment of major research gaps in solar radiation modification research

    World Climate Research Programme lighthouse activity: an assessment of major research gaps in solar radiation modification research by Jim M. Haywood, Olivier Boucher, Chris Lennard, Trude Storelvmo, Simone Tilmes, Daniele Visioni

    Published 2025-02-01
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  4. 44
    A Deep Learning Model for the Thermospheric Nitric Oxide Emission

    A Deep Learning Model for the Thermospheric Nitric Oxide Emission by Xuetao Chen, Jiuhou Lei, Dexin Ren, Wenbin Wang

    Published 2021-03-01
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  5. 45
    The Impact of Solar Activity on Forecasting the Upper Atmosphere via Assimilation of Electron Density Data

    The Impact of Solar Activity on Forecasting the Upper Atmosphere via Assimilation of Electron Density Data by Timothy Kodikara, Kefei Zhang, Nicholas Michael Pedatella, Claudia Borries

    Published 2021-05-01
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  6. 46
    The Impact of Assimilating Ionosphere and Thermosphere Observations on Neutral Temperature Improvement: Observing System Simulation Experiments Using EnKF

    The Impact of Assimilating Ionosphere and Thermosphere Observations on Neutral Temperature Improvement: Observing System Simulation Experiments Using EnKF by Jianhui He, Xinan Yue, Zhipeng Ren

    Published 2021-10-01
    “…Such observations are ingested into the coupled ionosphere and thermosphere model based on our developed ensemble Kalman Filter data assimilation systems on the basis of the ensemble Kalman filter algorithm and the National Center for Atmospheric Research Thermosphere Ionosphere Electrodynamics General Circulation Model. …”
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  7. 47
    Recent Decreasing Trends in Surface PM2.5 over East Asia in the Winter-Spring Season: Different Responses to Emissions and Meteorology between Upwind and Downwind Regions

    Recent Decreasing Trends in Surface PM2.5 over East Asia in the Winter-Spring Season: Different Responses to Emissions and Meteorology between Upwind and Downwind Regions by Young-Hee Ryu, Seung-Ki Min, Alma Hodzic

    Published 2021-02-01
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  8. 48
    Comparison of Precipitation Rates from Global Datasets for the Five-Year Period from 2019 to 2023

    Comparison of Precipitation Rates from Global Datasets for the Five-Year Period from 2019 to 2023 by Heike Hartmann

    Published 2025-01-01
    “…In this study, I compared precipitation rates from five reanalysis datasets and one analysis dataset—the European Centre for Medium-Range Weather Forecasts Reanalysis Version 5 (ERA-5), the Japanese 55-Year Reanalysis (JRA-55), the Modern-Era Retrospective Analysis for Research and Applications Version 2 (MERRA-2), the National Center for Environmental Prediction/National Center for Atmospheric Research Reanalysis 1 (NCEP/NCAR R1), the NCEP/Department of Energy Reanalysis 2 (NCEP/DOE R2), and the NCEP/Climate Forecast System Version 2 (NCEP/CFSv2)—with the merged satellite and rain gauge dataset from the Global Precipitation Climatology Project in Version 2.3 (GPCPv2.3). …”
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  9. 49
    Validation of formaldehyde products from three satellite retrievals (OMI SAO, OMPS-NPP SAO, and OMI BIRA) in the marine atmosphere with four seasons of Atmospheric Tomography Mission (ATom) aircraft observations

    Validation of formaldehyde products from three satellite retrievals (OMI SAO, OMPS-NPP SAO, and OMI BIRA) in the marine atmosphere with four seasons of Atmospheric Tomography Missi... by J. Liao, J. Liao, G. M. Wolfe, A. E. Kotsakis, A. E. Kotsakis, A. E. Kotsakis, J. M. Nicely, J. M. Nicely, J. M. St. Clair, J. M. St. Clair, T. F. Hanisco, G. González Abad, C. R. Nowlan, Z. Ayazpour, Z. Ayazpour, I. De Smedt, E. C. Apel, R. S. Hornbrook

    Published 2025-01-01
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  10. 50
    Evaluation on the Quasi‐Realistic Ionospheric Prediction Using an Ensemble Kalman Filter Data Assimilation Algorithm

    Evaluation on the Quasi‐Realistic Ionospheric Prediction Using an Ensemble Kalman Filter Data Assimilation Algorithm by Jianhui He, Xinan Yue, Huijun Le, Zhipeng Ren, Weixing Wan

    Published 2020-03-01
    “…The National Center for Atmospheric Research Thermosphere Ionosphere Electrodynamics General Circulation Model is used as the background model in the system. …”
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  11. 51
    Medium-scale traveling ionospheric disturbances created by primary gravity waves generated by a winter storm

    Medium-scale traveling ionospheric disturbances created by primary gravity waves generated by a winter storm by Kogure Masaru, Chou Min-Yang, Yue Jia, Otsuka Yuichi, Liu Huixin, Sassi Fabrizio, Pedatella Nicholas, Randall Cora E., Harvey V. Lynn

    Published 2024-01-01
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  12. 52
    ML-AMPSIT: Machine Learning-based Automated Multi-method Parameter Sensitivity and Importance analysis Tool

    ML-AMPSIT: Machine Learning-based Automated Multi-method Parameter Sensitivity and Importance analysis Tool by D. Di Santo, C. He, F. Chen, L. Giovannini

    Published 2025-01-01
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  13. 53
    Validation of Simulated Statistical Characteristics of Magnetosphere‐Ionosphere Coupling in Global Geospace Simulations Over an Entire Carrington Rotation

    Validation of Simulated Statistical Characteristics of Magnetosphere‐Ionosphere Coupling in Global Geospace Simulations Over an Entire Carrington Rotation by Qianfeng Yin, Kevin H. Pham, Junjie Chen, Binzheng Zhang

    Published 2024-06-01
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  14. 54
    Impacts of Different Causes on the Inter‐Hemispheric Asymmetry of Ionosphere‐Thermosphere System at Mid‐ and High‐Latitudes: GITM Simulations

    Impacts of Different Causes on the Inter‐Hemispheric Asymmetry of Ionosphere‐Thermosphere System at Mid‐ and High‐Latitudes: GITM Simulations by Yu Hong, Yue Deng, Qingyu Zhu, Astrid Maute, Cheng Sheng, Daniel Welling, Ramon Lopez

    Published 2021-11-01
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  15. 55
    Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic Storm

    Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic Storm... by Ercha Aa, Shun‐Rong Zhang, Shasha Zou, Wenbin Wang, Zihan Wang, Xuguang Cai, Philip J. Erickson, Anthea J. Coster

    Published 2024-03-01
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  16. 56
    Impact of irrigation on farmworkers’ heat stress in California differs by season and during the day and night

    Impact of irrigation on farmworkers’ heat stress in California differs by season and during the day and night by Sagar P. Parajuli, Trent Biggs, Fernando de Sales, Miguel Angel Zavala Perez, Cenlin He, Charles Jones, Callum Thompson, Nicolas Lopez Galvez, Haley Ciborowski, Tiago Quintino, Claudia Di Napoli, Aliasghar Montazar, Tayebeh Hosseini Yazdi, Monica Soucier

    Published 2024-12-01
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  17. 57
    Comparative Accuracies of Models for Drag Prediction During Geomagnetically Disturbed Periods: A First Principles Model Versus Empirical Models

    Comparative Accuracies of Models for Drag Prediction During Geomagnetically Disturbed Periods: A First Principles Model Versus Empirical Models by R. L. Walterscheid, M. W. Chen, C.‐C. Chao, S. Gegenheimer, J. Cabrera‐Guzman, J. McVey

    Published 2023-05-01
    “…Abstract We examine the accuracy of density prediction by the first principles model Thermosphere Ionosphere Electrodynamics General Circulation Model (TIEGCM) developed by the National Center for Atmospheric Research and compare it to the accuracy of three empirical models: Jacchia 71, the Naval Research Laboratory Mass Spectrometer Incoherent Scatter Extended 2000 (NRLMSIS), Jacchia 1971, and Jacchia‐Bowman 2008. …”
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  18. 58
    Specifying Satellite Drag Through Coupled Thermosphere‐Ionosphere Data Assimilation of Radio Occultation Electron Density Profiles

    Specifying Satellite Drag Through Coupled Thermosphere‐Ionosphere Data Assimilation of Radio Occultation Electron Density Profiles by Nicholas Dietrich, Tomoko Matsuo, Chih‐Ting Hsu

    Published 2022-08-01
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  19. 59
    Opposite Effects of Mineral Dust Nonsphericity and Size on Dust‐Induced Snow Albedo Reduction

    Opposite Effects of Mineral Dust Nonsphericity and Size on Dust‐Induced Snow Albedo Reduction by Tenglong Shi, Cenlin He, Daizhou Zhang, Xuelei Zhang, Xiaoying Niu, Yuxuan Xing, Yang Chen, Jiecan Cui, Wei Pu, Xin Wang

    Published 2022-06-01
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  20. 60
    A Comparison of Machine Learning-Based Approaches in Estimating Surface PM<sub>2.5</sub> Concentrations Focusing on Artificial Neural Networks and High Pollution Events

    A Comparison of Machine Learning-Based Approaches in Estimating Surface PM<sub>2.5</sub> Concentrations Focusing on Artificial Neural Networks and High Pollution Events by Shijin Wei, Kyle Shores, Yangyang Xu

    Published 2025-01-01
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