Coupled ensemble subseasonal reforecasts (ENS-C) with IFS cycle 49r2

Title Coupled ensemble subseasonal reforecasts (ENS-C) with IFS cycle 49r2
Description Coupled subsesaonal reforecasts (ENS-C) consisting of 10 perturbed members, each integrated for 46-days, starting on the first of each month between 2006 and 2023 for a total of 216 start dates. The atmospheric model is configured to use the cubic octahedral reduced Gaussian grid with 137 vertical levels and a horizontal resolution of Tco319. The atmosphere is coupled hourly to an eddy-permitting NEMO4-SI3 configuration, which uses 75 vertical levels in the ocean and the eORCA025 grid. Atmospheric fields are initialised from the ERA5 reanalysis and ocean/sea-ice fields are initialised using the ORAS6 ensemble reanalysis. Ensemble spread in coupled forecasts is generated through a combination of atmosphere, ocean, and sea ice initial condition perturbations and stochastic parameterisations in the atmospheric model.
DOI 10.21957/2c00-rw28
Experiment ID impq
Experiment class ECMWF Research Department
Examples

Retrieve all pressure level fields initialised on January 1st 

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

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "2024-01-01",
    "expver": "impq",
    "hdate": "2006-01-01/2007-01-01/2008-01-01/2009-01-01/2010-01-01/2011-01-01/2012-01-01/2013-01-01/2014-01-01/2015-01-01/2016-01-01/2017-01-01/2018-01-01/2019-01-01/2020-01-01/2021-01-01/2022-01-01/2023-01-01",
    "levelist": "10/50/100/200/250/500/700/850/1000",
    "levtype": "pl",
    "number": "1/2/3/4/5/6/7/8/9/10",
    "param": "129.128/130.128/131/132/133.128/135.128/138.128/155.128/157.128",
    "step": "0/12/24/36/48/60/72/84/96/108/120/132/144/156/168/180/192/204/216/228/240/252/264/276/288/300/312/324/336/348/360/372/384/396/408/420/432/444/456/468/480/492/504/516/528/540/552/564/576/588/600/612/624/636/648/660/672/684/696/708/720/732/744/756/768/780/792/804/816/828/840/852/864/876/888/900/912/924/936/948/960/972/984/996/1008/1020/1032/1044/1056/1068/1080/1092/1104",
    "stream": "enfh",
    "target": "output.grib",
    "time": "00:00:00",
    "type": "pf"
})

Retrieve all surface fields initialised on January 1st 

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

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "2024-01-01",
    "expver": "impq",
    "hdate": "2006-01-01/2007-01-01/2008-01-01/2009-01-01/2010-01-01/2011-01-01/2012-01-01/2013-01-01/2014-01-01/2015-01-01/2016-01-01/2017-01-01/2018-01-01/2019-01-01/2020-01-01/2021-01-01/2022-01-01/2023-01-01",
    "levtype": "sfc",
    "number": "1/2/3/4/5/6/7/8/9/10",
    "param": "20.3/29.228/31.128/32.128/33.128/34.128/35.128/36.128/37.128/38.128/39.128/40.128/41.128/42.128/47.128/49.128/98.174/129.128/130.151/131.151/132.151/136.128/137.128/139.128/141.128/142.128/143.128/144.128/145.128/145.151/146.128/147.128/148.128/148.151/151.128/159.128/163.151/164.128/164.151/165.128/166.128/167.128/168.128/169.128/170.128/172.128/173.128/174.128/175.128/175.151/176.128/177.128/178.128/179.128/180.128/181.128/182.128/183.128/186.128/187.128/188.128/189.128/197.128/198.128/201.128/202.128/205.128/216.228/217.228/218.228/219.228/220.228/221.228/228.128/235.128/238.128/243.128/244.128/251.228/228050/260015/260121/260123",
    "step": "0/12/24/36/48/60/72/84/96/108/120/132/144/156/168/180/192/204/216/228/240/252/264/276/288/300/312/324/336/348/360/372/384/396/408/420/432/444/456/468/480/492/504/516/528/540/552/564/576/588/600/612/624/636/648/660/672/684/696/708/720/732/744/756/768/780/792/804/816/828/840/852/864/876/888/900/912/924/936/948/960/972/984/996/1008/1020/1032/1044/1056/1068/1080/1092/1104",
    "stream": "enfh",
    "target": "output.grib",
    "time": "00:00:00",
    "type": "pf"
})