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Inter-comparison of stratospheric mean-meridional circulation and eddy mixing among six reanalysis data sets [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
The stratospheric mean-meridional circulation (MMC) and eddy mixing are compared among six meteorological reanalysis data sets: NCEP-NCAR, NCEP-CFSR, ERA-40, ERA-Interim, JRA-25, and JRA-55 for the period 1979–2012.
K. Miyazaki   +5 more
doaj   +20 more sources

Comparison of large-scale dynamical variability in the extratropical stratosphere among the JRA-55 family data sets: impacts of assimilation of observational data in JRA-55 reanalysis data [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
This study compares large-scale dynamical variability in the extratropical stratosphere, such as major stratospheric sudden warmings (MSSWs), among the Japanese 55-year Reanalysis (JRA-55) family data sets. The JRA-55 family consists of three products:
M. Taguchi
doaj   +5 more sources

The Impact of the Observation Data Assimilation on Atmospheric Reanalyses over Tibetan Plateau and Western Yunnan-Guizhou Plateau [PDF]

open access: yesAtmosphere, 2020
Three modern atmospheric reanalyses with different input observation data (NOAA–CIRES 20th Century Reanalysis (20CR), Japanese 55-year Reanalysis (JRA-55), and JRA-55C) were compared against the independent radiosonde observations over the Tibetan ...
Xinghua Bao   +3 more
doaj   +2 more sources

Uncertainty in recent near-surface wind speed trends: a global reanalysis intercomparison [PDF]

open access: yesEnvironmental Research Letters, 2017
Reanalysis products have become a tool for wind energy users requiring information about the wind speed long-term variability. These users are sensitive to many aspects of the observational references they employ to estimate the wind resource, such as ...
Verónica Torralba   +2 more
doaj   +3 more sources

Comparison of Atmospheric Vertical Motion over China in ERA-Interim, JRA-55, and NCEP/NCAR Reanalysis Datasets [PDF]

open access: yesAsia-Pacific Journal of Atmospheric Sciences, 2021
AbstractVertical motion is an important feature of the atmosphere, being closely linked to clouds and precipitation. Here, we present a comparison of the vertical velocity of air over China, with particular focus on the Tibetan Plateau, during the period 1981–2010 using three reanalysis datasets: ERA-Interim, JRA-55 and NCEP/NCAR.
Rongxiang Tian
exaly   +2 more sources

Performance evaluation of ERA-5, JRA-55, MERRA-2, and CFS-2 reanalysis datasets, over diverse climate regions of Pakistan

open access: yesWeather and Climate Extremes, 2021
Reanalysis precipitation products (RPPs) are frequently used for studying the water cycle changes from short to long-term scale globally. In the current study, ERA-5 produced by the European Centre for Medium-Range Weather Forecasts (ECMWF), the Japanese
Muhammad Arshad   +5 more
doaj   +2 more sources

An intercomparison of subtropical cut-off lows in the Southern Hemisphere using recent reanalyses: ERA-Interim, NCEP-CFRS, MERRA-2, JRA-55, and JRA-25 [PDF]

open access: yesClimate Dynamics, 2020
Four recent reanalysis products ERA-Interim, NCEP-CFSR, MERRA-2 and JRA-55 are evaluated and compared to an older reanalysis JRA-25, to quantify their confidence in representing Cut-off lows (COLs) in the Southern Hemisphere.
Gan, Manoel Alonso   +2 more
core   +4 more sources

JRA-55 based surface dataset for driving ocean–sea-ice models (JRA55-do)

open access: yesOcean Modelling, 2018
We present a new surface-atmospheric dataset for driving ocean–sea-ice models based on Japanese 55-year atmospheric reanalysis (JRA-55), referred to here as JRA55-do. The JRA55-do dataset aims to replace the CORE interannual forcing version 2 (hereafter called the CORE dataset), which is currently used in the framework of the Coordinated Ocean-ice ...
Hiroyuki Tsujino   +2 more
exaly   +6 more sources

An increase in global daily precipitation records in response to global warming based on reanalysis and observations [version 2; peer review: 2 approved] [PDF]

open access: yesOpen Research Europe
Understanding trends in extreme precipitation events in the context of global warming is critical for assessing climate change impacts. This study employs a novel methodology developed by Giorgi and Ciarlo (2022) to analyze record-breaking daily ...
James Ciarlo', Filippo Giorgi
doaj   +2 more sources

Evaluation of surface albedo products from ERA5, JRA-55, MERRA-2, and CERES-EBAF on the Tibetan Plateau: insights from in-situ observations and MODIS data

open access: yesInternational Journal of Digital Earth
Land surface albedo is essential for comprehending energy budget and climate effects. However, significant discrepancies exist in various albedo datasets, primarily due to variations in the surface data and simulation models employed. This study assessed
Guojin Pang   +6 more
doaj   +2 more sources

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