EXPECT constant CO2/ocean experiment

Title EXPECT constant CO2/ocean experiment
Description EXPECT seasonal hindcast experiment ConstantCO2/ocean. CO2 emissions kept constant at 1993 levels and warming footprint removed from ocean initial conditions. (For full details see Mayer et al. 2026). Experiment uses Cy49R2 v8 at Tco199 and ORCA025Z75 resolution (the reference ocean ICs are from ORAS6 0001). 51 member ensemble of May initialisations for the years 1993-2026 and run for 7 months.
DOI -
Experiment ID iqe9
Experiment class ECMWF Research Department
Examples

Monthly mean meridional wind at 200 hPa for ensemble member 4 and the second month of forecast from May 1999

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

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "1999-05-01",
    "expver": "iqe9",
    "fcmonth": "2",
    "levelist": "200",
    "levtype": "pl",
    "method": "1",
    "number": "4",
    "origin": "ecmf",
    "param": "132",
    "stream": "msmm",
    "target": "output.grib",
    "time": "00:00:00",
    "type": "fcmean"
})

Forecast of 850 hPa temperature at step 48 (hours) into the forecast from 1 May 2004 for ensemble member 8

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

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "2004-05-01",
    "expver": "iqe9",
    "levelist": "850",
    "levtype": "pl",
    "method": "1",
    "number": "8",
    "origin": "ecmf",
    "param": "130.128",
    "step": "48",
    "stream": "mmsf",
    "target": "output.grib",
    "time": "00:00:00",
    "type": "fc"
})