47R1 stratosphere relaxation experiment

Title 47R1 stratosphere relaxation experiment
Description This experiment contains 20 years of re-forecasts with 9 start dates twice a week between 12 December and 12 January of the following year. ensemble size is 11 members.
DOI 10.21957/xz9s-kf04
Experiment ID hk4g
Experiment class ECMWF Research Department
Examples

retrieval of 2-meter temperature 10m-member perturbed forecast at step 24 from the re-forecasts tarting on 12 December 2002, with reference date 12 December 2019

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

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "2019-12-12",
    "expver": "hk4g",
    "hdate": "2002-12-12",
    "levtype": "sfc",
    "number": "1/to/10",
    "param": "2t",
    "step": "24",
    "stream": "enfh",
    "target": "output.grib",
    "time": "00:00:00",
    "type": "pf"
})

retrieval of the control forecast (unperturbed) at forecast day 32.

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

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "2019-12-12",
    "expver": "hk4g",
    "hdate": "2002-12-12",
    "levtype": "sfc",
    "param": "2t",
    "step": "768",
    "stream": "enfh",
    "target": "output.grib",
    "time": "00:00:00",
    "type": "cf"
})