ERA5 / ERA5-Land reanalysis#

era5 · theme climate · live

ECMWF ERA5 hourly reanalysis (ARCO-ERA5 on Google Cloud Storage, 0.25°, 1940 to ERA5T) and the ERA5 / ERA5-Land hourly, daily and monthly aggregates on Earth Engine (the only ERA5-Land route today).

import easysnowdata as esd

aoi = (-121.94, 46.72, -121.54, 46.99)   # Mount Rainier
data = esd.climate.era5.load(aoi, time="2024-03")

No account needed for the default route

source="arco-era5-gcs" is open. source="gee" needs earthengine — see the credentials page.

Sources#

2 routes serve this product; the first is the default and source= picks another. The return contract is the same either way.

source

provider

credentials

resolution

extent

temporal

latency

notes

arco-era5-gcs (default)

zarr_cloud

none

27750 m

global

1940/present (ERA5T)

~1 week (ERA5T); ~3 months (final ERA5)

Zarr v2, consolidated, anonymous; hourly ERA5 only

gee

gee

earthengine

11132 m

global

1950/present

~1 week

the only ERA5-Land route; daily and monthly aggregates

Where each route points#

arco-era5-gcs — ARCO-ERA5 (GCS) live

gs://gcp-public-data-arco-era5/ar/full_37-1h-0p25deg-chunk-1.zarr-v3

gee — Earth Engine live

ECMWF/ERA5_LAND/HOURLY (and ERA5 / ERA5_LAND daily and monthly aggregates)

Variables#

variable

units

dtype

nodata

categorical

2m_temperature

K

—

—

no

total_precipitation

m

—

—

no

snow_depth

m of water equivalent

—

—

no

snowfall

m of water equivalent

—

—

no

snowmelt

m of water equivalent

—

—

no

temperature_2m

K

—

—

no

snow_depth_water_equivalent

m of water equivalent

—

—

no

Provenance#

Licence · Copernicus licence

DOI · 10.1002/qj.3803

Cite the data as

Hersbach, H., et al. (2020). The ERA5 global reanalysis. QJRMS 146, 1999–2049. Muñoz-Sabater, J., et al. (2021). ERA5-Land. ESSD 13, 4349–4383. Carver, R. W. and Merose, A. (2023). ARCO-ERA5: An Analysis-Ready Cloud-Optimized Reanalysis Dataset. 22nd Conf. on AI for Env. Science, AMS.

Documentation

Loader · easysnowdata.climate.era5.load