All Stories

  1. Development of an Aerosol Assimilation System Using a Global Non‐Hydrostatic Model, a 2‐Dimensional Variational Method, and Multiple Satellite‐Based Aerosol Products

    Article • Journal of Advances in Modeling Earth Systems, August 2024, American Geophysical Union (AGU)

    Dr. Hisashi Yashiro

  2. The greenhouse gas observation mission with Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW): Objectives, conceptual framework and scientific contributions

    Article • July 2024, Springer Science + Business Media

    Dr. Hisashi Yashiro

  3. How Can We Improve the Seamless Representation of Climatological Statistics and Weather Toward Reliable Global K‐Scale Climate Simulations?

    Article • Journal of Advances in Modeling Earth Systems, February 2024, American Geophysical Union (AGU)

    Dr. Hisashi Yashiro

  4. Impacts of a double-moment bulk cloud microphysics scheme (NDW6-G23) on aerosol fields in NICAM.19 with a global 14 km grid resolution

    Article • Geoscientific Model Development, January 2024, Copernicus GmbH

    Dr. Hisashi Yashiro

  5. Parallelized Remapping Algorithms for km-scale Global Weather and Climate Simulations with Icosahedral Grid System

    Article • January 2024, ACM (Association for Computing Machinery)

    Dr. Hisashi Yashiro, Chihiro Kodama

  6. Modeling Water Isotopes Using a Global Non‐Hydrostatic Model With an Explicit Convection: Comparison With Gridded Data Sets and Site Observations

    Article • Journal of Geophysical Research Atmospheres, December 2023, American Geophysical Union (AGU)

    Dr. Hisashi Yashiro

  7. Global and regional CO2 and CH4 flux distributions derived from the inversion analyses of GOSAT series data and their temporal variations

    Article • October 2023, SPIE

    Dr. Hisashi Yashiro

  8. Large Ensemble Simulation for Investigating Predictability of Precursor Vortices of Typhoon Faxai in 2019 With a 14‐km Mesh Global Nonhydrostatic Atmospheric Model

    Article • Geophysical Research Letters, February 2023, American Geophysical Union (AGU)

    Dr. Hisashi Yashiro

  9. A System-Wide Communication to Couple Multiple MPI Programs for Heterogeneous Computing

    Article • January 2023, Springer Science + Business Media

    Dr. Hisashi Yashiro

  10. Flux Adjustment on Seasonal-Scale Sea Surface Temperature Drift in NICOCO

    Article • Journal of the Meteorological Society of Japan, January 2023, Meteorological Society of Japan

    Dr. Hisashi Yashiro

  11. Autotuning Power Consumption and Computation Accuracy using ppOpen-AT

    Article • December 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr. Hisashi Yashiro

  12. NEXRA: A weather research analysis system based on the Nonhydrostatic Icosahedral Atmospheric Model with a local ensemble transform Kalman filter

    Article • November 2022, Research Square

    Dr. Hisashi Yashiro

  13. Evaluating the contribution of the unexplored photochemistry of aldehydes on the tropospheric levels of molecular hydrogen (H2)

    Article • Atmospheric Chemistry and Physics", September 2022, Copernicus GmbH

    Dr. Hisashi Yashiro

  14. Development of a coupler h3-Open-UTIL/MP

    Article • January 2022, ACM (Association for Computing Machinery)

    Dr. Hisashi Yashiro

  15. Enhancing data assimilation of GPM observations

    Article • January 2022, Elsevier

    Dr. Hisashi Yashiro

  16. Large Ensemble Atmospheric and Environmental Prediction for Disaster Prevention and Mitigation with the Supercomputer Fugaku

    Article • Sen i Gakkaishi, February 2021, Society of Fiber Science and Technology Japan

    Dr. Hisashi Yashiro

  17. The Nonhydrostatic ICosahedral Atmospheric Model for CMIP6 HighResMIP simulations (NICAM16-S): experimental design, model description, and impacts of model updates

    Article • Geoscientific Model Development, February 2021, Copernicus GmbH

    Dr. Hisashi Yashiro

  18. Effect of Model Resolution on Black Carbon Transport from Siberia to the Arctic Associated with the Well-Developed Low-Pressure Systems in September

    Article • Journal of the Meteorological Society of Japan, January 2021, Meteorological Society of Japan

    Dr. Hisashi Yashiro

  19. A 1024-Member Ensemble Data Assimilation with 3.5-Km Mesh Global Weather Simulations

    Article • November 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr. Hisashi Yashiro

  20. Co-Design for A64FX Manycore Processor and ”Fugaku”

    Article • November 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Dr. Hisashi Yashiro

  21. Global aerosol simulations using NICAM.16 on a 14 km grid spacing for a climate study: improved and remaining issues relative to a lower-resolution model

    Article • Geoscientific Model Development, August 2020, Copernicus GmbH

    Dr. Hisashi Yashiro

  22. Coupling library Jcup3: its philosophy and application

    Article • Progress in Earth and Planetary Science, February 2020, Springer Science + Business Media

    Dr. Hisashi Yashiro

  23. AIMES: Advanced Computation and I/O Methods for Earth-System Simulations

    Article • January 2020, Springer Science + Business Media

    Dr. Hisashi Yashiro

  24. An Energy Balance Model for Low--Level Clouds Based on a Simulation Resolving Mesoscale Motions

    Article • Journal of the Meteorological Society of Japan, January 2020, Meteorological Society of Japan

    Dr. Hisashi Yashiro

  25. Precipitation Ensemble Data Assimilation in NWP Models

    Article • January 2020, Springer Science + Business Media

    Dr. Hisashi Yashiro

  26. Convergence of Convective Updraft Ensembles With Respect to the Grid Spacing of Atmospheric Models

    Article • Geophysical Research Letters, December 2019, American Geophysical Union (AGU)

    Seiya Nishizawa, Dr. Hisashi Yashiro

  27. An evaluation method for uncertainties in regional climate projections

    Article • Atmospheric Science Letters, December 2018, Wiley

    Seiya Nishizawa, Dr. Hisashi Yashiro

  28. Maintenance condition of back-building squall-line in a numerical simulation of a heavy rainfall event in July 2010 in Western Japan

    Article • Atmospheric Science Letters, December 2018, Wiley

    Seiya Nishizawa, Dr. Hisashi Yashiro

  29. ppOpen-HPC/pK-Open-HPC: Application Development Framework with Automatic Tuning (AT)

    Article • December 2018, Springer Science + Business Media

    Dr. Hisashi Yashiro

  30. Online Model Parameter Estimation With Ensemble Data Assimilation in the Real Global Atmosphere: A Case With the Nonhydrostatic Icosahedral Atmospheric Model (NICAM) and the Global Satellite Mapping of Precipitation Data

    Article • Journal of Geophysical Research Atmospheres, July 2018, American Geophysical Union (AGU)

    Dr. Hisashi Yashiro

  31. Single Precision in the Dynamical Core of a Nonhydrostatic Global Atmospheric Model: Evaluation Using a Baroclinic Wave Test Case

    Article • Monthly Weather Review, February 2018, American Meteorological Society

    Dr. Hisashi Yashiro

  32. Decomposition of the large-scale atmospheric state driving downscaling: a perspective on dynamical downscaling for regional climate study

    Article • Progress in Earth and Planetary Science, January 2018, Springer Science + Business Media

    Seiya Nishizawa, Dr. Hisashi Yashiro

  33. Analysis of High Radon-222 Concentration Events Using Multi-Horizontal-Resolution NICAM Simulations

    Article • SOLA, January 2018, Meteorological Society of Japan

    Dr. Hisashi Yashiro

  34. Multi-scale Simulations of Atmospheric Pollutants Using a Non-hydrostatic Icosahedral Atmospheric Model

    Article • January 2018, Springer Science + Business Media

    Dr. Hisashi Yashiro

  35. Contributions of changes in climatology and perturbation and the resulting nonlinearity to regional climate change

    Article • Nature Communications, December 2017, Springer Science + Business Media

    Seiya Nishizawa, Dr. Hisashi Yashiro

  36. A Madden-Julian Oscillation event remotely accelerates ocean upwelling to abruptly terminate the 1997/1998 super El Niño

    Article • Geophysical Research Letters, September 2017, Wiley

    Dr. Hisashi Yashiro

  37. CONeP: A cost-effective online nesting procedure for regional atmospheric models

    Article • Parallel Computing, July 2017, Elsevier

    Seiya Nishizawa, Dr. Hisashi Yashiro

  38. Outcomes and challenges of global high-resolution non-hydrostatic atmospheric simulations using the K computer

    Article • Progress in Earth and Planetary Science, April 2017, Springer Science + Business Media

    Dr. Hisashi Yashiro

  39. Evaluation of summertime surface ozone in Kanto area of Japan using a semi-regional model and observation

    Article • Atmospheric Environment, March 2017, Elsevier

    Dr. Hisashi Yashiro

  40. The Near-Real-Time SCALE-LETKF System: A Case of the September 2015 Kanto-Tohoku Heavy Rainfall

    Article • SOLA, January 2017, Meteorological Society of Japan

    Seiya Nishizawa, Dr. Hisashi Yashiro

  41. Resolution Dependency of Numerically Simulated Stratosphere-to-Troposphere Transport Associated with Mid-Latitude Closed Cyclones in Early Spring around Japan

    Article • SOLA, January 2017, Meteorological Society of Japan

    Dr. Hisashi Yashiro

  42. Validation of high-resolution aerosol optical thickness simulated by a global non-hydrostatic model against remote sensing measurements

    Article • January 2017, American Institute of Physics

    Dr. Hisashi Yashiro

  43. Simulations of Below-Ground Dynamics of Fungi: 1.184 Pflops Attained by Automated Generation and Autotuning of Temporal Blocking Codes

    Article • November 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Seiya Nishizawa, Dr. Hisashi Yashiro

  44. Precursors of deep moist convection in a subkilometer global simulation

    Article • Journal of Geophysical Research Atmospheres, October 2016, American Geophysical Union (AGU)

    Dr. Hisashi Yashiro

  45. Automatic generation of efficient codes from mathematical descriptions of stencil computation

    Article • September 2016, ACM (Association for Computing Machinery)

    Seiya Nishizawa, Dr. Hisashi Yashiro

  46. Performance evaluation of a throughput-aware framework for ensemble data assimilation: the case of NICAM-LETKF

    Article • Geoscientific Model Development, July 2016, Copernicus GmbH

    Dr. Hisashi Yashiro

  47. Performance Analysis and Optimization of Nonhydrostatic ICosahedral Atmospheric Model (NICAM) on the K Computer and TSUBAME2.5

    Article • June 2016, ACM (Association for Computing Machinery)

    Dr. Hisashi Yashiro

  48. Resolution dependence of deep convections in a global simulation from over 10-kilometer to sub-kilometer grid spacing

    Article • Progress in Earth and Planetary Science, June 2016, Springer Science + Business Media

    Dr. Hisashi Yashiro

  49. Unrealistically pristine air in the Arctic produced by current global scale models

    Article • Scientific Reports, May 2016, Springer Science + Business Media

    Dr. Hisashi Yashiro

  50. Martian dust devil simulations with 5-m resolution

    Article • Geophysical Research Letters, May 2016, American Geophysical Union (AGU)

    Seiya Nishizawa, Dr. Hisashi Yashiro

  51. Resolution Dependence of the Diurnal Cycle of Precipitation Simulated by a Global Cloud-System Resolving Model

    Article • SOLA, January 2016, Meteorological Society of Japan

    Dr. Hisashi Yashiro

  52. Performance assessment of a triple-frequency spaceborne cloud–precipitation radar concept using a global cloud-resolving model

    Article • Atmospheric Measurement Techniques, August 2015, Copernicus GmbH

    Dr. Hisashi Yashiro

  53. Impacts of cloud microphysics on trade wind cumulus: which cloud microphysics processes contribute to the diversity in a large eddy simulation?

    Article • Progress in Earth and Planetary Science, August 2015, Springer Science + Business Media

    Seiya Nishizawa, Dr. Hisashi Yashiro

  54. Does convection vary in different cloud disturbances?

    Article • Atmospheric Science Letters, January 2015, Wiley

    Dr. Hisashi Yashiro

  55. Horizontal Distance of Each Cumulus and Cloud Broadening Distance Determine Cloud Cover

    Article • SOLA, January 2015, Meteorological Society of Japan

    Seiya Nishizawa, Dr. Hisashi Yashiro

  56. Corrigendum: “Potential of Retrieving Shallow-Cloud Life Cycle from Future Generation Satellite Observations through Cloud Evolution Diagrams: A Suggestion from a Large Eddy Simulation”

    Article • SOLA, January 2015, Meteorological Society of Japan

    Seiya Nishizawa, Dr. Hisashi Yashiro

  57. Influence of grid aspect ratio on planetary boundary layer turbulence in large-eddy simulations

    Article • Geoscientific Model Development, January 2015, Copernicus GmbH

    Seiya Nishizawa, Dr. Hisashi Yashiro

  58. The Non-hydrostatic Icosahedral Atmospheric Model: description and development

    Article • Progress in Earth and Planetary Science, October 2014, Springer Science + Business Media

    Dr. Hisashi Yashiro

  59. Scalable rank-mapping algorithm for an icosahedral grid system on the massive parallel computer with a 3-D torus network

    Article • Parallel Computing, August 2014, Elsevier

    Dr. Hisashi Yashiro

  60. Madden–Julian Oscillation prediction skill of a new-generation global model demonstrated using a supercomputer

    Article • Nature Communications, May 2014, Springer Science + Business Media

    Dr. Hisashi Yashiro

  61. Potential of Retrieving Shallow-Cloud Life Cycle from Future Generation Satellite Observations through Cloud Evolution Diagrams: A Suggestion from a Large Eddy Simulation

    Article • SOLA, January 2014, Meteorological Society of Japan

    Seiya Nishizawa, Dr. Hisashi Yashiro

  62. Deep moist atmospheric convection in a subkilometer global simulation

    Article • Geophysical Research Letters, September 2013, American Geophysical Union (AGU)

    Dr. Hisashi Yashiro

  63. The impact of soil uptake on the global distribution of molecular hydrogen: chemical transport model simulation

    Article • Atmospheric Chemistry and Physics", July 2011, Copernicus GmbH

    Dr. Hisashi Yashiro

  64. Temporal and spatial variations of carbon monoxide over the western part of the Pacific Ocean

    Article • Journal of Geophysical Research Atmospheres, April 2009, American Geophysical Union (AGU)

    Dr. Hisashi Yashiro