View Source

Find on this page technical specification of the required input data and processing for the WMO Lead Centre for Wave Forecast Verification project (LC-WFV)

Parameters

Output time: 00 and 12 UTC
Output frequency: the model output steps should be between 1 and 12 hours (including step 0)
Output type: forecast
Domain: regular latitude‐longitude grid at the resolution best matching the native resolution of the direct model output

	Name	units
Atmospheric forcing:	10 metre U wind component	m/s
Atmospheric forcing:	10 metre V wind component	m/s
Wave Fields:	Significant height of combined wind waves and swell	m
	Peak wave period	s
	Mean zero-crossing wave period	s
	Mean wave direction	degree true

Follow the links for exact GRIB2 WMO compliant definitions.

Encoding

All details about the required input files including sample data can be found in the page Encoding details

Sample data

Providers are asked to provide full sample data from one model run containing all expected parameters, steps, forecast types etc.
Naming convention for sample data:
wave_<Organization_acronym>_<YYYYMMDDRR>_<prod/test>_<an/fc>.grib2
acronym listed in the table below
prod/test ... production or test version of the data
an/fc ... analysis or forecast
Merge all parameters from all steps for given model run and output type into one file:
e.g. wave test forecasts from ECMWF on the 1st of September 2017, 12Z => wave_ECMWF_2017090112_test_fc.grib2
Put sample data on ecgate to a directory with reading permission
- alternatively use any other downloadable location (e.g. google drive)
- alternatively use this ftp (quota only 10 GB):
  host: ftp.ecmwf.int user: observations passwd: observations2013 directory: wave
The naming convention for future production data might change

Production

The data will be pulled via ftp from an agreed server location at the data producer's site.
The ECMWF's acquisition system will be used for handling the production data exchange.
Participants are committed to guarantee a steady and reliable provision of their data and to communicate any relevant changes.
The support mailing list on provider's side will be required to allow smooth communication related to common production issues in the future.

Models description

	Organization	Acronym	Centre	suiteName ^*4 (centre + model + domain)	Runs [UTC] (0/12 only)	Last step [h]	Fcst step [h]	Number of fcst steps	Resolution [º] (lat x lon if not the same)	Domain [lat, lon] (of the first and last grid point)	Domain size [#lat x #lon] (#total points)	Full 1day data size ^*3 [GB]
1	European Centre for Medium-Range Weather	ECMWF	ecmf	ecmf-wam-glob	0, 12	240	3 (0-144) 6 (150-240)	65	0.125	[90.0,0] [-90,359.875]	1441 x 2880 (4150080)	4.8
1	European Centre for Medium-Range Weather	ECMWF	ecmf	ecmf-saw-glob
2	Met office, UK	UKMO	egrr	egrr-def-glob	0, 12	144	3		0.2343750 x 0.3515625	[80.03906S,0.17578125E] [80.03906N,359.82422E]
3	Fleet Numerical Meteorology and Oceanography Centre, USA	FNMOC	fnmo	fnmo-wavewatch-glob	0, 12	180	6		0.5	[ 90.0,0] [90,359.5]
4	Environment and Climate Change Canada, Canada	ECCC	cwao	cwao-def-glob	0, 12	120	1 or 3		0.25	[ 90.0,0] [90,359.75]
5	National Centres for Environmental Prediction, USA	NCEP	kwbc	kwbc-def-glob	0, 12	180	1 (0-120) 3 (123-180)		0.5 (base grid) 0.067-0.167 (regional/coastal mosaics)	[-90.0,0] [90,359.5]
6	Météo France, France	METFR	lfpw	lfpw-def-glob					0.2	[90.0,0] [ -90,359.8]
7	Deutscher Wetterdienst, Germany	DWD	edzw	edzw-wam-gwam	0, 12	174	1		0.25	[89.25,0] [-85.25,359.75]
				edzw-wam-ewam	0, 12	78	1		0.05 x 0.10	[66,-10.50] [30,42]
				edzw-wam-cwam	0, 12	48	1		30'' x 50''	[56°26'45'',06°10'25''] [53°13'45'',14°54'35'']
8	Bureau of Meteorology, Australia	BoM	ammc
9	Laboratoire D'Océanographie Physique et Spatiale, France	LOPS	Brest (lfrb)^*2	lfrb-def-glob	0, 12	144	3		0.5	[-78,-180] [80,179.5]
10	Japan Meteorological Agency, Japan	JMA	rjtd	rjtd-mri3-glob	0, 12,	84	3		0.5	[75,0] [-75,359.5]
10	Japan Meteorological Agency, Japan	JMA	rjtd	rjtd-mri3-glob	12	87-264	3		0.5	[75,0] [-75,359.5]
11	Korea Meteorological Administration, Republic of Korea	KMA	rksl
12	Puertos del Estado, Spain (Madrid)	PRTOS	lemm
13	Danmarks Meteorologiske Institut, Denmark	DMI	ekmi
14	National Institute of Water and Atmospheric Research, New Zealand	NIWA	Auckland (nzak) ^*2	nzak-def-glob	0	144	1		0.15625 x 0.234375 (10/64 x 15/64)	[-81.25,0] [81.25,359.765625]
15	Det Norske Meteorologiske Institutt, Norway	METNO	enmi
16	Servicio de Hidrografía Naval, Servicio Meteorológico, Argentina	SHNSM	sabm	sabm-wavewatch-glob	0, 12	96	1		1	[65,-180] [-80,179]
				sabm-wavewatch-aus					0.5	[-15,-180] [-79,179.5]
				sabm-wavewatch-plat					0.2	[-25,-70] [-56,-40]
				sabm-wavewatch-lit					4'	[-40,-69.5] [-55,-61.03]
				sabm-wavewatch-pam					3'	[-33.9,-62.5] [-40.5,-53.5]
17	New Zealand MetService	NZMS	nzkl
18	Servizio Meteorologico dell'Aeronautica Militare, Italy	METEOAM	cnmc	cnmc-def-lam	0, 12	72	3	25	0.05	[-33.9,-62.5] [-40.5,-53.5]	321 * 846 (271566)	0.1

~~(1) number defined but not name as a string in ECMWF ECCODES~~

(2) not defined yet in ECMWF ECCODES (WMO code does not exist yet for lfrb; more details are needed for nzak)

(3) both runs, 6 parameters, all steps, forecast only

(4) ECMWF ECCODES only (GRIB2 local section 2 for MARS archiving purposes)

Contact

Contact Richard Mladek for any further details, sample data exchange etc.