ECMWF 24-Month Extended-Seasonal Reforecasts (1981–2024) for the ASPECT Project

Title ECMWF 24-Month Extended-Seasonal Reforecasts (1981–2024) for the ASPECT Project
Description This dataset contains parameters from 24-month extended-seasonal reforecasts using the ECMWF seasonal forecast system 5 (SEAS5, Johnson et al, 2019). The reforecasts are intialised on 01-May and 01-November with 25 ensemble members and cover the period 1981-2024. Note that these forecasts are not real-time operational products; rather, they are experimental and generated as part of the ASPECT project (https://www.aspect-project.eu). The ASPECT project has received funding from the European Union’s Horizon Europe – the Framework Programme for Research and Innovation (2021-2027) under grant agreement No. 101081460. For further details, please contact Magdalena Balmaseda (magdalena.balmaseda@ecmwf.int).
DOI 10.21957/5e60-rf82
Experiment ID i12j
Experiment class ECMWF Research Department
Examples

Monthly mean 2m Temperature

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "1993-05-01",
    "expver": "i12j",
    "fcmonth": "1/to/24",
    "levtype": "sfc",
    "method": "1",
    "number": "0/to/24",
    "origin": "ecmf",
    "param": "2t",
    "stream": "msmm",
    "system": "5",
    "target": "output_2t.grib",
    "time": "00:00:00",
    "type": "fcmean"
})

Monthly mean Geopotential at 500 hPa 

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "1993-05-01",
    "expver": "i12j",
    "fcmonth": "1/to/24",
    "levelist": "500",
    "levtype": "pl",
    "method": "1",
    "number": "0/to/24",
    "origin": "ecmf",
    "param": "z",
    "stream": "msmm",
    "system": "5",
    "target": "output_z500.grib",
    "time": "00:00:00",
    "type": "fcmean"
})

6-hourly 2m Temperature

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "1993-11-01",
    "expver": "i12j",
    "levtype": "sfc",
    "method": "1",
    "number": "0/to/24",
    "origin": "ecmf",
    "param": "167.128",
    "step": "0/to/744/by/6",
    "stream": "mmsf",
    "target": "output_2t_6h.grib",
    "time": "00:00:00",
    "type": "fc"
})