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Yesterday

  1. page ERA5 edited ... Requested variables ERA5 variable list Temporary version (this will be deleted soon!!!):** …
    ...
    Requested variables
    ERA5 variable list
    Temporary version (this will be deleted soon!!!):**
    The grib files are in
    /g/data/ub4/era5/grib/<stream>/<variable>/<yr>/<files>
    where <stream> currently is
    oper_an_sfc --> operative analysis surface
    oper_fc_sfc --> operative forecast surface
    filename:
    <var>_era5_<stream>_03x03_90N0E90S35970E_<from-date>_<to-date>
    For example:
    10U_era5_oper_an_sfc_03x03_90N0E90S35970E_20080101_20080131
    Files are then converted to netcdf applying CF convention and partly CMOR conventions to allowed for this to be more easily used with a variety of software.
    Currently the netcdf are in
    /g/data/ub4/era5/netcdf/1hr/<realm>/<stream>/v01/<cmip-variable>/<files>
    filename:
    <var>_1hr_reanalysis_IFS-Cy41r2_<stream>_<from-date>_<to-date>.nc
    For example:
    psl_1hr_reanalysis_IFS-Cy41r2_an-sfc_20121201_20121231.nc
    This is temporary and both filenames and directory structure might chnage in the near future, including attributes in the files.
    Variable list with ECMWF/CMIP names (where available) i.e. grib/netcdf names
    10U /uas - analysis 10 m wind eastward component
    10V /vas - analysis 10 m wind northward component
    MSL/psl -analysis mean sea level pressure
    TP/ forecast total precipitation

    Note on forecasts
    Forecasts are accumulated values defined at 20 steps (0-19) starting from times 06.00 and 18.00.
    (view changes)
    5:48 pm
  2. 4:16 pm

Thursday, December 6

  1. page ERA5 edited ... Known Issues Known issues from ECMWF website Dec 7 2018: an error has been discovered affec…
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    Known Issues
    Known issues from ECMWF website
    Dec 7 2018: an error has been discovered affecting the values of the following variables
    CDS Dataset
    ERA5 hourly data on pressure levels from 2000 to present
    Parameters affected
    U-component of wind, V-component of wind
    Level
    All pressure levels
    Time periods affected
    01 Jan. 2000 - 31 Dec. 2008
    01 Jun. 2018 - present
    This problem was caused by the computation of U/V from Vorticity (Vo) and Divergence (D) already interpolated onto a regular grid in CDS. U/V should have been computed from Vo and D in the spherical harmonics representation (the native model representation) and then interpolated to a regular grid before saving to the climate data store.
    This error has yet to be fixed, which means that any data corresponding to the description above is wrong, and will continue to be wrong until a fix is in place. You should not use this data and wait until the problem is fixed.
    It is estimated that the problem will be fixed in December 2018.

    License
    ERA5 data is open access and free to download for all uses, including commercial use.
    (view changes)
    2:37 pm

Thursday, November 29

  1. page ERA5 edited ... filename: <variable>_era5_global_<from-date>_<to-date>.nc Variables (ECMW…
    ...
    filename:
    <variable>_era5_global_<from-date>_<to-date>.nc
    Variables (ECMWF code):
    100U - 100m u wind (246.228)
    100V - 100m v wind (247.228)
    10U - 10m u wind (165.128)
    10V - 10m v wind (166.128)
    2D - 2m dewpoint temperature (168.128)
    2T - 2m temperature (167.128)
    MSL - mean sea level pressure (151.128)
    SP - surface pressure (134.128)
    TP - total precipitation (228.128)

    Pressure levels
    data is downloaded as netcdf on a regular 0.25x0.25 longitude/latitude grid at 1 hr resolution, on an Australian region defined as in the criteria.
    ...
    filename:
    <variable>_era5_aus_<from-date>_<to-date>.nc
    ...
    netcdf files wherewere following where
    ...
    CMIP conventions
    T - temperature on pressure levels (130.128)
    U - u wind

    Wave surface level
    data is downloaded as netcdf
    on pressure levels (131.128)
    V - v wind
    a regular 0.5x0.5 longitude/latitude grid at 1 hr resolution, on pressure levels (132.128)a global grid.
    /g/data/ub4/era5/netcdf/wave/<variable>/<yr>/<files>
    filename:
    <variable>_era5_global_<from-date>_<to-date>.nc
    Requested variables
    ERA5 variable list

    Temporary version (this will be deleted soon!!!):**
    The grib files are in
    (view changes)
    8:01 pm

Tuesday, November 27

  1. page NCI Induction edited Joining a project Command line basics - bash File systems
    Joining a project
    Command line basics - bash
    File systems

    (view changes)
    10:16 pm
  2. 10:15 pm
  3. 10:15 pm
  4. page An Introduction to the CLEX Research Workflow edited ... For NCI Users NCI Induction ... a model on NCI Analysing Model Results / Data Publishi…
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    For NCI Users
    NCI Induction
    ...
    a model on NCI
    Analysing Model Results / Data
    Publishing Data
    For Non-NCI Users
    Finding Data
    Running a model locally

    Local Analysis
    Publishing Data
    (view changes)
    10:12 pm

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