Dropsonde data denial study for 2020 Atmospheric Rivers campaign

Title Dropsonde data denial study for 2020 Atmospheric Rivers campaign
Description noDropsonde experiment (other all usual observation types assimilated) for Observing System Experiment (OSE) looking at ARs affecting western USA DeHaan et al (2023, WAF, submitted). Experiment from 2020-01-20 to 2020-04-28, control is hd8r.
DOI 10.21957/6p0c-gz45
Experiment ID hd6r
Experiment class ECMWF Research Department
Examples

Forecast fields of integrated water vapour, step gives forecast range in hours

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

server = ECMWFDataServer()

server.retrieve({
    "anoffset": "9",
    "class": "rd",
    "dataset": "research",
    "date": "2020-01-20",
    "expver": "hd8r",
    "levtype": "sfc",
    "param": "137.128",
    "step": "0/12/24/48",
    "stream": "lwda",
    "target": "output.grib",
    "time": "00:00:00",
    "type": "fc"
})

Analysis fields for u-wind and v-wind @850 hPa

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

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "2020-01-20",
    "expver": "hd8r",
    "levelist": "850",
    "levtype": "pl",
    "param": "131/132",
    "stream": "lwda",
    "target": "output.grib",
    "time": "00:00:00",
    "type": "an"
})