ERA5 hourly data on single levels

Here we propose a subset of ERA5 data for world atmospheric and land surface quantities called ERA5 hourly data on single levels. The data are available from 1940 until the last closed month and updated monthly and are regridded to a regular lat-lon grid of 0.25 degrees.

They are presented as a zarr archive optimised for time analysis.

How to access

It's required to before running the code snippet below.
1import xarray as xr
2
3xr.open_dataset(
4    "https://data.earthdatahub.destine.eu/era5/reanalysis-era5-single-levels-v0.zarr",
5    storage_options={"client_kwargs":{"trust_env":True}},
6    chunks={},
7    engine="zarr",
8)
9

Tutorials

Variables

Short NameUnitsDescription
alnid
(0 - 1)

Near IR albedo for diffuse radiation (climatological)

alnip
(0 - 1)

Near IR albedo for direct radiation (climatological)

aluvd
(0 - 1)

UV visible albedo for diffuse radiation (climatological)

aluvp
(0 - 1)

UV visible albedo for direct radiation (climatological)

anor
radians

Angle of sub-gridscale orography

asn
(0 - 1)

Snow albedo

bld
J m-2

Time-integrated boundary layer dissipation

blh
m

Boundary layer height

cape
J kg-1

Convective available potential energy

cdir
J m-2

Surface direct short-wave radiation, clear sky

chnk
Numeric

Charnock

cin
J kg-1

Convective inhibition

cl
(0 - 1)

Lake cover

cp
m

Convective precipitation

crr
kg m-2 s-1

Convective rain rate

csf
m of water equivalent

Convective snowfall

csfr
kg m-2 s-1

Convective snowfall rate water equivalent

cvh
(0 - 1)

High vegetation cover

cvl
(0 - 1)

Low vegetation cover

d2m
K

2 metre dewpoint temperature

dctb
m

Duct base height

dl
m

Lake total depth

dndza
m-1

Mean vertical gradient of refractivity inside trapping layer

dndzn
m-1

Minimum vertical gradient of refractivity inside trapping layer

e
m of water equivalent

Evaporation

es
m of water equivalent

Snow evaporation

ewss
N m-2 s

Time-integrated eastward turbulent surface stress

fal
(0 - 1)

Forecast albedo

fdir
J m-2

Total sky direct short-wave (solar) radiation at surface

flsr
Numeric

Forecast logarithm of surface roughness for heat

fsr
m

Forecast surface roughness

gwd
J m-2

Gravity wave dissipation

hcc
(0 - 1)

High cloud cover

ie
kg m-2 s-1

Instantaneous moisture flux

iews
N m-2

Instantaneous eastward turbulent surface stress

ilspf
(0 - 1)

Instantaneous large-scale surface precipitation fraction

inss
N m-2

Instantaneous northward turbulent surface stress

ishf
W m-2

Instantaneous surface sensible heat flux

isor
Numeric

Anisotropy of sub-gridscale orography

istl1
K

Ice temperature layer 1

istl2
K

Ice temperature layer 2

istl3
K

Ice temperature layer 3

istl4
K

Ice temperature layer 4

kx
K

K index

lai_hv
m2 m-2

Leaf area index, high vegetation

lai_lv
m2 m-2

Leaf area index, low vegetation

lblt
K

Lake bottom temperature

lcc
(0 - 1)

Low cloud cover

lgws
N m-2 s

Eastward gravity wave surface stress

licd
m

Lake ice total depth

lict
K

Lake ice surface temperature

lmld
m

Lake mix-layer depth

lmlt
K

Lake mix-layer temperature

lsf
m of water equivalent

Large-scale snowfall

lshf
dimensionless

Lake shape factor

lsm
(0 - 1)

Land-sea mask

lsp
m

Large-scale precipitation

lspf
s

Large-scale precipitation fraction

lsrr
kg m-2 s-1

Large scale rain rate

lssfr
kg m-2 s-1

Large scale snowfall rate water equivalent

ltlt
K

Lake total layer temperature

mcc
(0 - 1)

Medium cloud cover

mgws
N m-2 s

Northward gravity wave surface stress

mn2t
K

Minimum temperature at 2 metres since previous post-processing

mntpr
kg m-2 s-1

Minimum total precipitation rate since previous post-processing

msl
Pa

Mean sea level pressure

mx2t
K

Maximum temperature at 2 metres since previous post-processing

mxtpr
kg m-2 s-1

Maximum total precipitation rate since previous post-processing

nsss
N m-2 s

Time-integrated northward turbulent surface stress

pev
m

Potential evaporation

ptype
(Code table 4.201)

Precipitation type

ro
m

Runoff

rsn
kg m-3

Snow density

sd
m of water equivalent

Snow depth

sdfor
m

Standard deviation of filtered subgrid orography (climatological)

sdor
m

Standard deviation of sub-gridscale orography

sf
m of water equivalent

Snowfall

siconc
(0 - 1)

Sea ice area fraction

skt
K

Skin temperature

slhf
J m-2

Surface latent heat flux

slor
Numeric

Slope of sub-gridscale orography

slt
(Code table 4.213)

Soil type

smlt
m of water equivalent

Snowmelt

sp
Pa

Surface pressure

src
m of water equivalent

Skin reservoir content

sro
m

Surface runoff

sshf
J m-2

Surface sensible heat flux

ssr
J m-2

Surface net short-wave (solar) radiation

ssrc
J m-2

Surface net short-wave (solar) radiation, clear sky

ssrd
J m-2

Surface short-wave (solar) radiation downwards

ssrdc
J m-2

Surface short-wave (solar) radiation downward clear-sky

ssro
m

Sub-surface runoff

sst
K

Sea surface temperature

stl1
K

Soil temperature level 1

stl2
K

Soil temperature level 2

stl3
K

Soil temperature level 3

stl4
K

Soil temperature level 4

str
J m-2

Surface net long-wave (thermal) radiation

strc
J m-2

Surface net long-wave (thermal) radiation, clear sky

strd
J m-2

Surface long-wave (thermal) radiation downwards

strdc
J m-2

Surface long-wave (thermal) radiation downward clear-sky

swvl1
m3 m-3

Volumetric soil water layer 1

swvl2
m3 m-3

Volumetric soil water layer 2

swvl3
m3 m-3

Volumetric soil water layer 3

swvl4
m3 m-3

Volumetric soil water layer 4

t2m
K

2 metre temperature

tcc
(0 - 1)

Total cloud cover

tciw
kg m-2

Total column cloud ice water

tclw
kg m-2

Total column cloud liquid water

tco3
kg m-2

Total column ozone

tcrw
kg m-2

Total column rain water

tcsw
kg m-2

Total column snow water

tisr
J m-2

TOA incident short-wave (solar) radiation

tp
m

Total precipitation

tsn
K

Temperature of snow layer

tsr
J m-2

Top net short-wave (solar) radiation

tsrc
J m-2

Top net short-wave (solar) radiation, clear sky

ttr
J m-2

Top net long-wave (thermal) radiation

ttrc
J m-2

Top net long-wave (thermal) radiation, clear sky

tvh
(Code table 4.234)

Type of high vegetation

tvl
(Code table 4.234)

Type of low vegetation

u10
m s-1

10 metre U wind component

u100
m s-1

100 metre U wind component

u10n
m s-1

10 metre u-component of neutral wind

uvb
J m-2

Downward UV radiation at the surface

v10
m s-1

10 metre V wind component

v100
m s-1

100 metre V wind component

v10n
m s-1

10 metre v-component of neutral wind

viiwd
kg m-2 s-1

Vertical integral of divergence of cloud frozen water flux

viiwe
kg m-1 s-1

Vertical integral of eastward cloud frozen water flux

viiwn
kg m-1 s-1

Vertical integral of northward cloud frozen water flux

vilwd
kg m-2 s-1

Vertical integral of divergence of cloud liquid water flux

vilwe
kg m-1 s-1

Vertical integral of eastward cloud liquid water flux

vilwn
kg m-1 s-1

Vertical integral of northward cloud liquid water flux

z
m2 s-2

Geopotential

zust
m s-1

Friction velocity

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