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Windeenheid    
             
  Localiseer me!

Grou, Friesland, 2 NAP

Tabel
Grafieken
Kaarten
Nauwkeurigheid
Vergelijken
Verwachtings grafiek
Vergelijking verwachtingsmodellen
Meerdaagse
EWN zet de prognose-modellen in een echte test door de controle op hun juistheid ook buiten de "thuiszone" te testen, die meestal het land betreft van het uitgevende meteorologische instituut. De nauwkeurigheid wordt gecontroleerd op ca 900 plaatsen ten noorden van de Alpen en wordt berekend door het vergelijken van de prognose met de waargenomen temperatuur elke 3 uur op 00, 03, 06, 09, 12, 15, 18 en 21 UTC. De gebruikte voorspelling voor de volgende dag wordt gegenereerd op ca 18 UTC. Deze resultaten worden gebruikt voor de berekening van de EWN voorspelling.
Models
- EWN: EWN's eigen verwachting
- WRFDA: WRF verwerkt door de EWN
- DWD: ICON, DWD, Duitsland
- MF: ARPEGE, Meteo Frankrijk
- KNMI: Hirlam, KNMI, Nederland
- FMI: Hirlam, FMI, Finland
- YR: XML-files (AROME-MetCoOp, Hirlam, ECMWF), MET Noorwegen (yr.no)
- GFS: GFS, NCEP, USA
- CMC: CMC Ensemble, CMC, Canada
- WXSIM: WXSIM-software gebruikt door privé weerstations (data niet beschikbaar voor alle locaties)

Nauwkeurigheid voor Grou

 
EWN
FMI
YR
--
DWD
MF
KNMI
GFS
CMC
WXSIM
Goede voorspellingen (±2°)
Gemiddelde fout
Goede voorspellingen (±2°)
Gemiddelde fout

Model nauwkeurigheid

De gemiddelde totale nauwkeurigheid voor elk prognose-model.
 
EWN
FMI
YR
--
DWD
MF
KNMI
GFS
CMC
WXSIM
Goede voorspellingen (±2°)
Gemiddelde fout
Goede voorspellingen (±2°)
Gemiddelde fout
Waarnemingen dichtbij
    mm
    30+
    25-30
    20-25
    15-20
    10-15
    6-10
    4-6
    2-4
    1-2
    0.5-1
    0.2-0.5
    0.1-0.2
    Sneeuwval
    Natte sneeuw
    Hagel
    Vorst
    Onweer
    mm
    50
    30
    22
    14
    9
    7
    5
    4
    3
    2
    1
    0.6
    0.2
    35°
    30°
    25°
    20°
    15°
    10°
    -5°
    -10°
    -15°
    -20°
    -25°
    -30°
    -35°
    m/s
    33+
    29
    25
    21
    17
    14
    11
    8
    5
    3
    0
    m/s
    100
    90
    80
    70
    60
    50
    40
    30
    m/s
    50+
    45
    40
    35
    30
    25
    20
    15
    10
    5
    0
    J/kg
    2600
    2400
    2200
    2000
    1800
    1600
    1400
    1200
    1000
    800
    600
    400
    200
    dBZ
    70
    65
    60
    55
    50
    45
    40
    35
    30
    25
    20
    15
    10
    5
    K
    -1
    -2
    -3
    -4
    -5
    -6
    -7
    -8
    -9
    m²/s²
    950
    900
    850
    800
    750
    700
    650
    600
    550
    500
    450
    400
    350
    300
    250
    200
    150
    100
    m/s
    46
    44
    42
    40
    38
    36
    34
    32
    30
    28
    26
    24
    22
    20
    16
    12
    8
    4
    m/s
    30
    28
    26
    24
    22
    20
    18
    16
    14
    12
    10
    8
    6
    4
    2
    3.0
    2.8
    2.6
    2.4
    2.2
    2.0
    1.8
    1.6
    1.4
    1.2
    1.0
    0.8
    0.6
    0.4
    0.2
    15
    14
    13
    12
    11
    10
    9
    8
    7
    6
    5
    4
    3
    2
    1
    %
    90
    80
    70
    60
    50
    40
    30
    20
    10
    cm
    200+
    175-200
    150-175
    125-150
    100-125
    80-100
    60-80
    40-60
    20-40
    10-20
    0-10
    Sneeuwval
    Natte sneeuw
    Regen
    mm
    >120
    110
    100
    90
    80
    70
    60
    50
    40
    30
    20
    10
    hPa
    960
    880
    800
    720
    640
    560
    gpdm
    584
    568
    552
    536
    520
    504
    488
    Extreem zwaar Noodweer Kans op onweer
    15% 15% 5% 50% 15%
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