Creating Custom ERA5Variables
While the list of available ERA5Variables in the Climate Data Store is very extensive, they are not exhaustive. There is therefore a need to define a list of custom ERA5Variables that will be otherwise calculated (although this has to be done separately outside of ERA5Reanalysis.jl), and then can thus be saved and manipulated and analyzed in the same way that the default ERA5Variables in ERA5Reanalysis.jl can be. In this page, we break this down into the SingleLevel and PressureLevel components
Custom SingleLevel Variables
As of ERA5Reanalysis.jl v0.3, we have predefined all the single-level variables that are available directly from the CDS. As such, all custom SingleLevel variables are defined under the SingleCustom type.
All Single-Level variables defined in the Climate Data Store are now available in ERA5Reanalysis.jl, but only for versions ≧ v0.3.
Defining a new SingleCustom variable
To define aSingleCustom variables, we use the funciton SingleVariable().
ERA5Reanalysis.SingleVariable — Type
SingleVariable(
ST = String;
ID :: AbstractString,
long :: AbstractString = "",
name :: AbstractString,
units :: AbstractString
) -> evar :: SingleLevelCreate a custom Single-Level variable that is not in the default list exported by ERA5Reanalysis.jl. These variables are not available in the CDS store, and so they must be separately calculated from other variables and analyzed.
Keyword Arguments
ID: variable ID (in string format) used in the NetCDF filelong: long-name for variable (used in specifying variable for CDS downloads)name: user-defined variable nameunits: user-defined units of the variableinCDS: Boolean that indicates if this variable is available on the CDS store. True if available.
Removing Custom SingleLevel Variables
To remove a SingleCustom variable, we can use the rmSingle() function:
Missing docstring for rmSingle( varID :: AbstractString ). Check Documenter's build log for details.
An Example!
In this example, we add a SingleLevel variable to the list:
eke, for Eddy Kinetic Energy, which is not downloadable and must be calculated using other variables
The Eddy Kinetic Energy is calculated by the following:
\[E = \frac{1}{2g} \int_0^{p_s} \overline{u'^2} + \overline{v'^2} \>dp\]
And it is often used as a measure of storm-track intensity.
julia> using ERA5Reanalysisjulia> SingleVariable( ID = "eke", units = "J m**-2", name = "Eddy Kinetic Energy", long = "eddy_kinetic_energy" )┌ Warning: 2025-11-29T00:49:30.009 - ERA5Reanalysis.jl - "eke" is not a valid SingleVariable identifier, use the function SingleVariable() or SingleCustom() to add this ERA5Variable to the list. └ @ ERA5Reanalysis ~/work/ERA5Reanalysis.jl/ERA5Reanalysis.jl/src/variable/is.jl:59 The Single-Level Custom Variable "eke" has the following properties: Variable ID (ID/ncID) : eke Long Name (long) : eddy_kinetic_energy Variable Name (name) : Eddy Kinetic Energy Variable Units (units) : J m**-2julia> tableSingles(custom=true)┌ Warning: 2025-11-29T00:49:31.216 - ERA5Reanalysis.jl - The custom file does "singlecustom.txt" does not exist in /home/runner, use `setupERA5Variables()` to copy templates and empty custom lists to /home/runner. └ @ ERA5Reanalysis ~/work/ERA5Reanalysis.jl/ERA5Reanalysis.jl/src/variable/tables.jl:87 ------------ ---------------- ----------------------- ------- ----------------------------------------------------------------- --------- ---------------- ID Variable Type Name Units ERA5 Long-Name DKRZ ID DKRZ Invariant ------------ ---------------- ----------------------- ------- ----------------------------------------------------------------- --------- ---------------- alnid SingleVariable (0 - 1) true Near IR albedo for diffuse radiation true false alnip SingleVariable (0 - 1) true Near IR albedo for direct radiation true false aluvd SingleVariable (0 - 1) true UV visible albedo for diffuse radiation true false aluvp SingleVariable (0 - 1) true UV visible albedo for direct radiation true false anor SingleVariable radians true Angle of sub-gridscale orography missing missing asn SingleVariable (0 - 1) true Snow albedo true false bfi SingleVariable dimensionless true Benjamin-Feir index true false bld SingleVariable J m**-2 false Boundary layer dissipation true false blh SingleVariable m true Boundary layer height true false cape SingleVariable J kg**-1 true Convective available potential energy true false cbh SingleVariable m false Cloud base height true false cdir SingleVariable J m**-2 false Clear-sky direct solar radiation at surface true false cdww SingleVariable dimensionless true Coefficient of drag with waves true false chnk SingleVariable ~ true Charnock true false ci SingleVariable (0 - 1) true Sea ice area fraction true false cin SingleVariable J kg**-1 false Convective inhibition true false cl SingleVariable (0 - 1) true Lake cover true true cp SingleVariable m false Convective precipitation true false crr SingleVariable kg m**-2 s**-1 false Convective rain rate true false csf SingleVariable m of water equivalent false Convective snowfall true false csfr SingleVariable kg m**-2 s**-1 false Convective snowfall rate water equivalent true false cvh SingleVariable (0 - 1) true High vegetation cover missing missing cvl SingleVariable (0 - 1) true Low vegetation cover missing missing d2m SingleVariable K true 2 metre dewpoint temperature true false dctb SingleVariable m false Duct base height true false deg0l SingleVariable m false Zero degree level true false dl SingleVariable m true Lake depth true true dndza SingleVariable m**-1 false Mean vertical gradient of refractivity inside trapping layer true false dndzn SingleVariable m**-1 false Minimum vertical gradient of refractivity inside trapping layer true false dwi SingleVariable degrees true 10 metre wind direction true false dwps SingleVariable Radians true Wave spectral directional width for swell true false dwww SingleVariable Radians true Wave spectral directional width for wind waves true false e SingleVariable m of water equivalent false Evaporation true false es SingleVariable m of water equivalent false Snow evaporation true false ewss SingleVariable N m**-2 s false Eastward turbulent surface stress true false fal SingleVariable (0 - 1) true Forecast albedo true false fdir SingleVariable J m**-2 false Total sky direct solar radiation at surface true false fg10 SingleVariable m s**-1 false 10 metre wind gust since previous post-processing true false flsr SingleVariable ~ true Forecast logarithm of surface roughness for heat true false fsr SingleVariable m true Forecast surface roughness true false gwd SingleVariable J m**-2 false Gravity wave dissipation true false hcc SingleVariable (0 - 1) true High cloud cover true false hmax SingleVariable m true Maximum individual wave height true false i10fg SingleVariable m s**-1 false Instantaneous 10 metre wind gust true false ie SingleVariable kg m**-2 s**-1 true Instantaneous moisture flux true false iews SingleVariable N m**-2 true Instantaneous eastward turbulent surface stress true false ilspf SingleVariable (0 - 1) false Instantaneous large-scale surface precipitation fraction true false inss SingleVariable N m**-2 true Instantaneous northward turbulent surface stress true false ishf SingleVariable W m**-2 true Instantaneous surface sensible heat flux true false isor SingleVariable ~ true Anisotropy of sub-gridscale orography missing missing istl1 SingleVariable K true Ice temperature layer 1 true false istl2 SingleVariable K true Ice temperature layer 2 true false istl3 SingleVariable K true Ice temperature layer 3 true false istl4 SingleVariable K true Ice temperature layer 4 true false kx SingleVariable K false K index2 true false lai_hv SingleVariable m**2 m**-2 true Leaf area index, high vegetation3 true false lai_lv SingleVariable m**2 m**-2 true Leaf area index, low vegetation3 true false lblt SingleVariable K true Lake bottom temperature true false lcc SingleVariable (0 - 1) true Low cloud cover true false lgws SingleVariable N m**-2 s false Eastward gravity wave surface stress true false licd SingleVariable m true Lake ice depth true false lict SingleVariable K true Lake ice temperature true false lmld SingleVariable m true Lake mix-layer depth true false lmlt SingleVariable K true Lake mix-layer temperature true false lsf SingleVariable m of water equivalent false Large-scale snowfall true false lshf SingleVariable dimensionless true Lake shape factor true false lsm SingleVariable (0 - 1) true Land-sea mask true true lsp SingleVariable m false Large-scale precipitation true false lspf SingleVariable s false Large-scale precipitation fraction true false lsrr SingleVariable kg m**-2 s**-1 false Large scale rain rate true false lssfr SingleVariable kg m**-2 s**-1 false Large scale snowfall rate water equivalent true false ltlt SingleVariable K true Lake total layer temperature true false mbld SingleVariable W m**-2 false Mean boundary layer dissipation true false mcc SingleVariable (0 - 1) true Medium cloud cover true false mcpr SingleVariable kg m**-2 s**-1 false Mean convective precipitation rate true false mcsr SingleVariable kg m**-2 s**-1 false Mean convective snowfall rate true false mdts SingleVariable degrees true Mean direction of total swell true false mdww SingleVariable degrees true Mean direction of wind waves true false megwss SingleVariable N m**-2 false Mean eastward gravity wave surface stress true false mer SingleVariable kg m**-2 s**-1 false Mean evaporation rate true false metss SingleVariable N m**-2 false Mean eastward turbulent surface stress true false mgwd SingleVariable W m**-2 false Mean gravity wave dissipation true false mgws SingleVariable N m**-2 s false Northward gravity wave surface stress true false mlspf SingleVariable Proportion false Mean large-scale precipitation fraction true false mlspr SingleVariable kg m**-2 s**-1 false Mean large-scale precipitation rate true false mlssr SingleVariable kg m**-2 s**-1 false Mean large-scale snowfall rate true false mn2t SingleVariable K false Minimum temperature at 2 metres since previous post-processing true false mngwss SingleVariable N m**-2 false Mean northward gravity wave surface stress true false mntpr SingleVariable kg m**-2 s**-1 false Minimum total precipitation rate since previous post-processing true false mntss SingleVariable N m**-2 false Mean northward turbulent surface stress true false mp1 SingleVariable s true Mean wave period based on first moment true false mp2 SingleVariable s true Mean zero-crossing wave period true false mper SingleVariable kg m**-2 s**-1 false Mean potential evaporation rate true false mpts SingleVariable s true Mean period of total swell true false mpww SingleVariable s true Mean period of wind waves true false mror SingleVariable kg m**-2 s**-1 false Mean runoff rate true false msdrswrf SingleVariable W m**-2 false Mean surface direct short-wave radiation flux true false msdrswrfcs SingleVariable W m**-2 false Mean surface direct short-wave radiation flux, clear sky true false msdwlwrf SingleVariable W m**-2 false Mean surface downward long-wave radiation flux true false msdwlwrfcs SingleVariable W m**-2 false Mean surface downward long-wave radiation flux, clear sky true false msdwswrf SingleVariable W m**-2 false Mean surface downward short-wave radiation flux true false msdwswrfcs SingleVariable W m**-2 false Mean surface downward short-wave radiation flux, clear sky true false msdwuvrf SingleVariable W m**-2 false Mean surface downward UV radiation flux true false mser SingleVariable kg m**-2 s**-1 false Mean snow evaporation rate true false msl SingleVariable Pa true Mean sea level pressure true false mslhf SingleVariable W m**-2 false Mean surface latent heat flux true false msmr SingleVariable kg m**-2 s**-1 false Mean snowmelt rate true false msnlwrf SingleVariable W m**-2 false Mean surface net long-wave radiation flux true false msnlwrfcs SingleVariable W m**-2 false Mean surface net long-wave radiation flux, clear sky true false msnswrf SingleVariable W m**-2 false Mean surface net short-wave radiation flux true false msnswrfcs SingleVariable W m**-2 false Mean surface net short-wave radiation flux, clear sky true false msqs SingleVariable dimensionless true Mean square slope of waves true false msr SingleVariable kg m**-2 s**-1 false Mean snowfall rate true false msror SingleVariable kg m**-2 s**-1 false Mean surface runoff rate true false msshf SingleVariable W m**-2 false Mean surface sensible heat flux true false mssror SingleVariable kg m**-2 s**-1 false Mean sub-surface runoff rate true false mtdwswrf SingleVariable W m**-2 false Mean top downward short-wave radiation flux true false mtnlwrf SingleVariable W m**-2 false Mean top net long-wave radiation flux true false mtnlwrfcs SingleVariable W m**-2 false Mean top net long-wave radiation flux, clear sky true false mtnswrf SingleVariable W m**-2 false Mean top net short-wave radiation flux true false mtnswrfcs SingleVariable W m**-2 false Mean top net short-wave radiation flux, clear sky true false mtpr SingleVariable kg m**-2 s**-1 false Mean total precipitation rate true false mvimd SingleVariable kg m**-2 s**-1 false Mean vertically integrated moisture divergence true false mwd SingleVariable degrees true Mean wave direction true false mwd1 SingleVariable degrees true Mean wave direction of first swell partition true false mwd2 SingleVariable degrees true Mean wave direction of second swell partition true false mwd3 SingleVariable degrees true Mean wave direction of third swell partition true false mwp SingleVariable s true Mean wave period true false mwp1 SingleVariable s true Mean wave period of first swell partition true false mwp2 SingleVariable s true Mean wave period of second swell partition true false mwp3 SingleVariable s true Mean wave period of third swell partition true false mx2t SingleVariable K false Maximum temperature at 2 metres since previous post-processing true false mxtpr SingleVariable kg m**-2 s**-1 false Maximum total precipitation rate since previous post-processing true false nsss SingleVariable N m**-2 s false Northward turbulent surface stress true false p1ps SingleVariable s true Mean wave period based on first moment for swell true false p1ww SingleVariable s true Mean wave period based on first moment for wind waves true false p2ps SingleVariable s true Mean wave period based on second moment for swell true false p2ww SingleVariable s true Mean wave period based on second moment for wind waves true false pev SingleVariable m false Potential evaporation true false phiaw SingleVariable dimensionless true Normalized energy flux into waves true false phioc SingleVariable dimensionless true Normalized energy flux into ocean true false pp1d SingleVariable s true Peak wave period true false ptype SingleVariable code table (4.201) false Precipitation type true false rhoao SingleVariable kg m**-3 true Air density over the oceans true false ro SingleVariable m false Runoff true false rsn SingleVariable kg m**-3 true Snow density true false sd SingleVariable m of water equivalent true Snow depth true false sdfor SingleVariable m true Standard deviation of filtered subgrid orography missing missing sdor SingleVariable ~ true Standard deviation of sub-gridscale orography missing missing sf SingleVariable m of water equivalent false Snowfall true false shts SingleVariable m true Significant height of total swell true false shww SingleVariable m true Significant height of wind waves true false skt SingleVariable K true Skin temperature true false slhf SingleVariable J m**-2 false Surface latent heat flux true false slor SingleVariable ~ true Slope of sub-gridscale orography missing missing slt SingleVariable ~ true Soil type1 missing missing smlt SingleVariable m of water equivalent false Snowmelt true false sp SingleVariable Pa true Surface pressure true false src SingleVariable m of water equivalent true Skin reservoir content true false sro SingleVariable m false Surface runoff true false sshf SingleVariable J m**-2 false Surface sensible heat flux true false ssr SingleVariable J m**-2 false Surface net solar radiation true false ssrc SingleVariable J m**-2 false Surface net solar radiation, clear sky true false ssrd SingleVariable J m**-2 false Surface solar radiation downwards true false ssrdc SingleVariable J m**-2 false Surface solar radiation downward clear-sky true false ssro SingleVariable m false Sub-surface runoff true false sst SingleVariable K true Sea surface temperature true false stl1 SingleVariable K true Soil temperature level 11 true false stl2 SingleVariable K true Soil temperature level 21 true false stl3 SingleVariable K true Soil temperature level 31 true false stl4 SingleVariable K true Soil temperature level 41 true false str SingleVariable J m**-2 false Surface net thermal radiation true false strc SingleVariable J m**-2 false Surface net thermal radiation, clear sky true false strd SingleVariable J m**-2 false Surface thermal radiation downwards true false strdc SingleVariable J m**-2 false Surface thermal radiation downward clear-sky true false swh SingleVariable m true Significant height of combined wind waves and swell true false swh1 SingleVariable m true Significant wave height of first swell partition true false swh2 SingleVariable m true Significant wave height of second swell partition true false swh3 SingleVariable m true Significant wave height of third swell partition true false swvl1 SingleVariable m**3 m**-3 true Volumetric soil water layer 11 true false swvl2 SingleVariable m**3 m**-3 true Volumetric soil water layer 21 true false swvl3 SingleVariable m**3 m**-3 true Volumetric soil water layer 31 true false swvl4 SingleVariable m**3 m**-3 true Volumetric soil water layer 41 true false t2m SingleVariable K true 2 metre temperature true false tauoc SingleVariable dimensionless true Normalized stress into ocean true false tcc SingleVariable (0 - 1) true Total cloud cover true false tciw SingleVariable kg m**-2 true Total column cloud ice water true false tclw SingleVariable kg m**-2 true Total column cloud liquid water true false tco3 SingleVariable kg m**-2 true Total column ozone true false tcrw SingleVariable kg m**-2 true Total column rain water true false tcslw SingleVariable kg m**-2 false Total column supercooled liquid water true false tcsw SingleVariable kg m**-2 true Total column snow water true false tcw SingleVariable kg m**-2 true Total column water true false tcwv SingleVariable kg m**-2 true Total column water vapour true false tisr SingleVariable J m**-2 false TOA incident solar radiation true false tmax SingleVariable s true Period corresponding to maximum individual wave height true false totalx SingleVariable K false Total totals index2 true false tp SingleVariable m false Total precipitation true false tplb SingleVariable m false Trapping layer base height true false tplt SingleVariable m false Trapping layer top height true false tsn SingleVariable K true Temperature of snow layer true false tsr SingleVariable J m**-2 false Top net solar radiation true false tsrc SingleVariable J m**-2 false Top net solar radiation, clear sky true false ttr SingleVariable J m**-2 false Top net thermal radiation true false ttrc SingleVariable J m**-2 false Top net thermal radiation, clear sky true false tvh SingleVariable ~ true Type of high vegetation missing missing tvl SingleVariable ~ true Type of low vegetation missing missing u10 SingleVariable m s**-1 true 10 metre U wind component true false u100 SingleVariable m s**-1 true 100 metre U wind component true false u10n SingleVariable m s**-1 true Neutral wind at 10 m u-component true false ust SingleVariable m s**-1 true U-component stokes drift true false uvb SingleVariable J m**-2 false Downward UV radiation at the surface true false v10 SingleVariable m s**-1 true 10 metre V wind component true false v100 SingleVariable m s**-1 true 100 metre V wind component true false v10n SingleVariable m s**-1 true Neutral wind at 10 m v-component true false viec SingleVariable W m**-2 true Vertical integral of energy conversion true false vigd SingleVariable W m**-2 true Vertical integral of divergence of geopotential flux true false vige SingleVariable W m**-1 true Vertical integral of eastward geopotential flux true false vign SingleVariable W m**-1 true Vertical integral of northward geopotential flux true false viiwd SingleVariable kg m**-2 s**-1 true Vertical integral of divergence of cloud frozen water flux true false viiwe SingleVariable kg m**-1 s**-1 true Vertical integral of eastward cloud frozen water flux true false viiwn SingleVariable kg m**-1 s**-1 true Vertical integral of northward cloud frozen water flux true false vike SingleVariable J m**-2 true Vertical integral of kinetic energy true false viked SingleVariable W m**-2 true Vertical integral of divergence of kinetic energy flux true false vikee SingleVariable W m**-1 true Vertical integral of eastward kinetic energy flux true false viken SingleVariable W m**-1 true Vertical integral of northward kinetic energy flux true false vilwd SingleVariable kg m**-2 s**-1 true Vertical integral of divergence of cloud liquid water flux true false vilwe SingleVariable kg m**-1 s**-1 true Vertical integral of eastward cloud liquid water flux true false vilwn SingleVariable kg m**-1 s**-1 true Vertical integral of northward cloud liquid water flux true false vima SingleVariable kg m**-2 true Vertical integral of mass of atmosphere true false vimad SingleVariable kg m**-2 s**-1 true Vertical integral of divergence of mass flux true false vimae SingleVariable kg m**-1 s**-1 true Vertical integral of eastward mass flux true false viman SingleVariable kg m**-1 s**-1 true Vertical integral of northward mass flux true false vimat SingleVariable kg m**-2 s**-1 true Vertical integral of mass tendency missing missing vimd SingleVariable kg m**-2 false Vertically integrated moisture divergence true false viozd SingleVariable kg m**-2 s**-1 true Vertical integral of divergence of ozone flux true false vioze SingleVariable kg m**-1 s**-1 true Vertical integral of eastward ozone flux true false viozn SingleVariable kg m**-1 s**-1 true Vertical integral of northward ozone flux true false vipie SingleVariable J m**-2 true Vertical integral of potential+internal energy true false vipile SingleVariable J m**-2 true Vertical integral of potential+internal+latent energy true false vit SingleVariable K kg m**-2 true Vertical integral of temperature true false vithe SingleVariable J m**-2 true Vertical integral of thermal energy true false vithed SingleVariable W m**-2 true Vertical integral of divergence of thermal energy flux true false vithee SingleVariable W m**-1 true Vertical integral of eastward heat flux true false vithen SingleVariable W m**-1 true Vertical integral of northward heat flux true false vitoe SingleVariable J m**-2 true Vertical integral of total energy true false vitoed SingleVariable W m**-2 true Vertical integral of divergence of total energy flux true false vitoee SingleVariable W m**-1 true Vertical integral of eastward total energy flux true false vitoen SingleVariable W m**-1 true Vertical integral of northward total energy flux true false viwvd SingleVariable kg m**-2 s**-1 true Vertical integral of divergence of moisture flux true false viwve SingleVariable kg m**-1 s**-1 true Vertical integral of eastward water vapour flux true false viwvn SingleVariable kg m**-1 s**-1 true Vertical integral of northward water vapour flux true false vst SingleVariable m s**-1 true V-component stokes drift true false wdw SingleVariable Radians true Wave spectral directional width true false wind SingleVariable m s**-1 true 10 metre wind direction true false wmb SingleVariable m true Model bathymetry true false wsk SingleVariable dimensionless true Wave spectral kurtosis true false wsp SingleVariable dimensionless true Wave spectral peakedness true false wss SingleVariable dimensionless true Wave Spectral Skewness true false wstar SingleVariable m s**-1 true Free convective velocity over the oceans true false z SingleVariable m**2 s**-2 true Geopotential true true zust SingleVariable m s**-1 false Friction velocity true false ------------ ---------------- ----------------------- ------- ----------------------------------------------------------------- --------- ----------------julia> rmSingle("eke")ERROR: UndefVarError: `rmSingle` not defined in `Main` Suggestion: check for spelling errors or missing imports.julia> isSingle("eke",throw=false) # don't throw error, just show warningERROR: UndefVarError: `isSingle` not defined in `Main` Suggestion: check for spelling errors or missing imports.
Custom PressureLevel variables
In ERA5Reanalysis.jl, we have predefined all the pressure-level variables that are available directly from the CDS. As such, all custom PressureLevel variables are defined under the PressureCustom type.
Defining Custom PressureLevel Variables
PressureCustom variables are defined using the PressureVariable() function, as follows:
ERA5Reanalysis.PressureVariable — Type
PressureVariable(
ST = String;
ID :: AbstractString,
long :: AbstractString = "",
name :: AbstractString,
units :: AbstractString,
hPa :: Int = 0,
throw :: Bool = true
) -> evar :: PressureCustomCreate a custom Pressure-Level variable that is not in the default list exported by ERA5Reanalysis.jl. These variables are not available in the CDS store, and so they must be separately calculated from other variables and analyzed.
Keyword Arguments
ID: variable ID (in string format) used in the NetCDF filelong: long-name for variable (used in specifying variable for CDS downloads)name: user-defined variable nameunits: user-defined units of the variablehPa: Pressure level specified in hPa. Default is 0, which indicates all levels.throw: ifhPalevel does not exist andthrowis true, throw error, otherwise find nearest pressure level
Removing Custom PressureLevel Variables
To remove a PressureCustom variable, we can use the rmPressure() function:
Missing docstring for rmPressure( varID :: AbstractString ). Check Documenter's build log for details.
An Example!
Let us define the custom variable "vt" for Virtual Temperature, which is a proxy to buoyancy in the atmosphere. Virtual Temperature is calculated from both the water vapour mixing ratio and atmospheric temperature and is given by the formula:
\[T_v = T(1+0.61q)\]
Virtual Temperature has the units "K", and for this example let us define the pressure level height we are interested in to be at 1000 hPa. The resultant PressureCustom variable is given by:
julia> using ERA5Reanalysisjulia> PressureVariable( ID = "vt", units = "K", hPa = 1000, long = "virtual_temperature", name = "Virtual Temperature" )┌ Warning: 2025-11-29T00:49:36.371 - ERA5Reanalysis.jl - "vt" is not a valid PressureVariable identifier, use the function PressureCustom() to add this ERA5Variable to the list. └ @ ERA5Reanalysis ~/work/ERA5Reanalysis.jl/ERA5Reanalysis.jl/src/variable/is.jl:110 The Pressure-Level Custom Variable "vt" has the following properties: Variable ID (ID/ncID) : vt Long Name (long) : virtual_temperature Variable Name (name) : Virtual Temperature (1000 hPa) Variable Units (units) : K Pressure Level (hPa) : 1000julia> tablePressures()ERROR: ArgumentError: Each vector in `column_labels` must have the same number of elements as the table columns (7).julia> rmPressure("vt")ERROR: UndefVarError: `rmPressure` not defined in `Main` Suggestion: check for spelling errors or missing imports.julia> isPressure("vt",throw=false) # don't throw error, just show warningERROR: UndefVarError: `isPressure` not defined in `Main` Suggestion: check for spelling errors or missing imports.