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Horizontal resolution <strong>in</strong>crease planned for early <strong>2016</strong><br />
HRES ENS Leg 1 ENS Leg 2<br />
Resolution <strong>in</strong>crease achieved by:<br />
64 km<br />
32 km<br />
T L 639<br />
N320<br />
T L 319<br />
N160<br />
T CO 319<br />
O320<br />
• represent<strong>in</strong>g the shortest wave by<br />
four (“cubic”) <strong>in</strong>stead of two<br />
(“l<strong>in</strong>ear”) grid po<strong>in</strong>ts<br />
(T L →T C )<br />
• Us<strong>in</strong>g the octahedral grid<br />
(T C → T CO , N → O)<br />
16 km<br />
T L 1279<br />
N640<br />
T CO 639<br />
O640<br />
T L xxx<br />
spectral l<strong>in</strong>ear<br />
8 km<br />
T CO 1279<br />
O1280<br />
T CO xxx<br />
Nxxx<br />
Oxxx<br />
spectral cubic octahedral<br />
orig<strong>in</strong>al reduced Gaussian<br />
octahedral reduced Gaussian<br />
EUROPEAN CENTRE FOR MEDIUM-RANGE WEATHER FORECASTS<br />
Oc<strong>to</strong>ber 29, 2014<br />
2
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