Set IV - Ocean Wave Model Ensemble 15-day forecast (ENS-WAM)

Order real-time forecasts

Products based on an ensemble of forecasts providing an estimate of the reliability of a single forecast. The following sub-sets are available from the ENS-WAM:

The purchase of the "Basic Set" +72, +96, +120, +144, +168 hrs is a mandatory prerequisite for the purchase of time steps in the range 12 to 66 hours.

Dissemination schedule

IV-i: Wave fields

(dissemination data stream indicator = W)

12 UTC based Forecast time Time Available 00 UTC based Forecast time Time available
Forecast Day 0 19:00 Forecast Day 0 07:00
Forecast Day 10 19:40 Forecast Day 10 07:40
Forecast Day 15 20:00 Forecast Day 15 08:00
Derived products Step 0 to 240 19:41 Derived products Step 0 to 240 07:41
Derived products Step 246 to 360 20:01 Derived products Step 246 to 360 08:01

IV-ii: Probabilities

(dissemination data stream indicator = U)

12 UTC based Forecast time Time Available 00 UTC based Forecast time Time available
Forecast Day 0 19:00 Forecast Day 0 07:00
Forecast Day 10 19:40 Forecast Day 10 07:40
Forecast Day 15 20:00 Forecast Day 15 08:00
Derived products Step 0 to 240 19:41 Derived products Step 0 to 240 07:41
Derived products Step 246 to 360 20:01 Derived products Step 246 to 360 08:01

IV-iii: Extreme Forecast Index & Shift of Tails

(dissemination data stream indicator = U)

12 UTC based Forecast time Time Available 00 UTC based Forecast time Time available
Forecast Day 0 19:00 Forecast Day 0 07:00
Forecast Day 10 19:40 Forecast Day 10 07:40
Forecast Day 15 20:00 Forecast Day 15 08:00
Derived products Step 0 to 240 19:41 Derived products Step 0 to 240 07:41
Derived products Step 246 to 360 20:01 Derived products Step 246 to 360 08:01

Parameters

All tables are sortable by column. Use your browser search for specific parameters.

  Terms convention
(inv) Invariant field. If requested these parameters can be provided free of charge

IV-i: Wave fields

Product resolution: 0.25° x 0.25° lat/long grid or any multiple thereof (global or sub-area)

  Forecast time step Base time
T+0 to T+144 3-hourly 00 UTC and 12 UTC
T+150h to T+360h 6-houlry (unless otherwise specified) 00 UTC and 12 UTC
Short Name ID Long Name Units Additional information
weta 140098 Wave induced mean sea level correction m  
wraf 140099 Ratio of wave angular and frequency width dimensionless  
wnslc 140100 Number of events in freak waves statistics dimensionless  
utaua 140101 U-component of atmospheric surface momentum flux N m**-2  
vtaua 140102 V-component of atmospheric surface momentum flux N m**-2  
utauo 140103 U-component of surface momentum flux into ocean N m**-2  
vtauo 140104 V-component of surface momentum flux into ocean N m**-2  
wphio 140105 Wave turbulent energy flux into ocean W m**-2  
wefxm 140112 Wave energy flux magnitude W m**-1  
wefxd 140113 Wave energy flux mean direction Degree true  
h1012 140114 Significant wave height of all waves with periods within the inclusive range from 10 to 12 seconds m  
h1214 140115 Significant wave height of all waves with periods within the inclusive range from 12 to 14 seconds m  
h1417 140116 Significant wave height of all waves with periods within the inclusive range from 14 to 17 seconds m  
h1721 140117 Significant wave height of all waves with periods within the inclusive range from 17 to 21 seconds m  
h2125 140118 Significant wave height of all waves with periods within the inclusive range from 21 to 25 seconds m  
h2530 140119 Significant wave height of all waves with periods within the inclusive range from 25 to 30 seconds m  
sh10 140120 Significant wave height of all waves with period larger than 10s m  
swh1 140121 Significant wave height of first swell partition m  
mwd1 140122 Mean wave direction of first swell partition degrees  
mwp1 140123 Mean wave period of first swell partition s  
swh2 140124 Significant wave height of second swell partition m  
mwd2 140125 Mean wave direction of second swell partition degrees  
mwp2 140126 Mean wave period of second swell partition s  
swh3 140127 Significant wave height of third swell partition m  
mwd3 140128 Mean wave direction of third swell partition degrees  
mwp3 140129 Mean wave period of third swell partition s  
wss 140207 Wave Spectral Skewness dimensionless  
wstar 140208 Free convective velocity over the oceans m s**-1  
rhoao 140209 Air density over the oceans kg m**-3  
phiaw 140211 Normalized energy flux into waves dimensionless  
phioc 140212 Normalized energy flux into ocean dimensionless  
tauoc 140214 Normalized stress into ocean dimensionless  
ust 140215 U-component stokes drift m s**-1  
vst 140216 V-component stokes drift m s**-1  
tmax 140217 Period corresponding to maximum individual wave height s  
hmax 140218 Maximum individual wave height m  
wmb 140219 Model bathymetry m  
mp1 140220 Mean wave period based on first moment s  
mp2 140221 Mean zero-crossing wave period s  
wdw 140222 Wave spectral directional width dimensionless  
p1ww 140223 Mean wave period based on first moment for wind waves s  
p2ww 140224 Mean wave period based on second moment for wind waves s  
dwww 140225 Wave spectral directional width for wind waves dimensionless  
p1ps 140226 Mean wave period based on first moment for swell s  
p2ps 140227 Mean wave period based on second moment for swell s  
dwps 140228 Wave spectral directional width for swell dimensionless  
swh 140229 Significant height of combined wind waves and swell m  
mwd 140230 Mean wave direction Degree true  
pp1d 140231 Peak wave period s  
mwp 140232 Mean wave period s  
cdww 140233 Coefficient of drag with waves dimensionless  
shww 140234 Significant height of wind waves m  
mdww 140235 Mean direction of wind waves degrees  
mpww 140236 Mean period of wind waves s  
shts 140237 Significant height of total swell m  
mdts 140238 Mean direction of total swell degrees  
mpts 140239 Mean period of total swell s  
msqs 140244 Mean square slope of waves dimensionless  
wind 140245 10 metre wind speed m s**-1  
dwi 140249 10 metre wind direction degrees  
2dfd 140251 2D wave spectra (single) m**2 s radian**-1  
wsk 140252 Wave spectral kurtosis dimensionless  
bfi 140253 Benjamin-Feir index dimensionless  
wsp 140254 Wave spectral peakedness dimensionless  

IV-ii: Probabilities

Product resolution: 0.25° x 0.25° lat/long grid or any multiple thereof (global or sub-area)

  Forecast time step Base time
T+24 to T+360h 12-hourly 00 UTC and 12 UTC

Forecast ranges

Base time

2 -day period covering 120h < T ≤ 168h

00 UTC and 12 UTC

3 -day period covering 168h < T ≤ 240h

00 UTC and 12 UTC

5 -day period covering 120h < T ≤ 240h

00 UTC and 12 UTC

5-day periods: 240h < T ≤ 360h

00 UTC and 12 UTC

 IV-ii-a: Probabilities - Instantaneous weather events

Short Name ID Long Name Units Additional information
swhg2 131074 Significant wave height of at least 2 m %  
swhg4 131075 Significant wave height of at least 4 m %  
swhg6 131076 Significant wave height of at least 6 m %  
swhg8 131077 Significant wave height of at least 8 m %  
mwpg8 131078 Mean wave period of at least 8 s %  
mwpg10 131079 Mean wave period of at least 10 s %  
mwpg12 131080 Mean wave period of at least 12 s %  
mwpg15 131081 Mean wave period of at least 15 s %  

IV-ii-b: Probabilities - Averaged weather events

Short Name ID Long Name Units Additional information
swhg2 131074 Significant wave height of at least 2 m %  
swhg4 131075 Significant wave height of at least 4 m %  
swhg6 131076 Significant wave height of at least 6 m %  
swhg8 131077 Significant wave height of at least 8 m %  
mwpg8 131078 Mean wave period of at least 8 s %  
mwpg10 131079 Mean wave period of at least 10 s %  
mwpg12 131080 Mean wave period of at least 12 s %  
mwpg15 131081 Mean wave period of at least 15 s %  

IV-iii-a: Extreme Forecast Index (EFI) 1-day ranges

 

1-day forecast ranges

Base times
00-24, 24-48, 48-72,72-96, 96-120, 120-144, 144-168 00 UTC
12-36, 36-60, 60-84, 84-108, 108-132, 132-156, 156-180 12 UTC
Short Name ID Long Name Units Additional information
maxswhi 132216 Maximum of significant wave height index (-1 to 1)  

IV-iii-b: Shift of Tails (SOT) 1-day ranges

Short Name ID Long Name Units Additional information
maxswhi 132216 Maximum of significant wave height index (-1 to 1)  

Last updated 09-09-2020