HRES O1280
EMOSLIB does not apply any land sea-mask processing when interpolating the mean sea-level pressure so differences arise only from the different interpolation method and selection of nearest points used by MIR
HRES O1280
Mean sea-level pressure has been interpolated from the O1280 target grid to regular lat-lon grids at different resolutions using EMOSLIB and MIR.
- The differences for more than 99% of grid points are less than 20Pa
- The largest differences occur in regions of high orography with the field gradient changes most rapidly.
- Larger differences are also seen in the lower resolution target grids (0.5ºx0.5º and 1.0ºx1.0º) at the polar latitudes (90ºN and 90ºS) which arise from the different handling of the interpolation at the poles.
Target resolution | Statistics of differences | Histogram of differences | Global | Europe |
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0.1x0.1 | Maximum difference = 68.125000 Minimum difference = -91.375000 Average difference = -0.000294 Mean Mean absolute difference = - 0.000294312304 Median absolute difference = - 0.125000 Standard deviation = 1.072257 Variance RMS of differences = 1.149734072257RMS of differences = 1.072257 Percentage of points with absolute difference < 1.0 = 95.306% < 2.0 = 97.828% < 10.0 = 99.743% | -100.000000 : -90.000000 - 1 ( 0.000015%) -90.000000 : -80.000000 - 0 ( 0.000000%) -80.000000 : -70.000000 -91.375000 : -73.100000 - 1 ( 0.000015%) -7370.100000 000000 : -5460.825000 000000 - 9 5 ( 0.000139%000077%) -5460.825000 000000 : -3650.550000 000000 - 80 12 ( 0.001234%000185%) -50.000000 : -40.000000 - 36 .550000 : -18.275000 - 996 ( 0.000555%) -40.000000 : -30.000000 - 153 ( 0.002360%) -30.000000 : -20.000000 - 638 ( 0.015362%009840%) -1820.275000 : 000000 : -10.000000 - 7583 ( 0.116957%) -10.000000 : 0.000000 - 3302198 3294855 ( 50.931550%818295%) 0.000000 : 10.000000 - 3172050 ( 48.924209%) 10.000000 : 20.000000 - 7478 ( 0.115337%) 20.000000 : 1830.275000 000000 - 3179303 ( 49.036076%) 18.275000 : 36.550000 - 932 603 ( 0.009300%) 30.000000 : 40.000000 - 121 ( 0.001866%) 40.000000 : 50.000000 - 49 ( 0.014375%000756%) 6 50.550000 000000 : 5460.825000 - 72 000000 - 13 ( 0.000201%) 60.000000 : 70.000000 - 2 ( 0.000031%) 70.000000 : 80.000000 - 0 ( 0.001110%000000%) 54 80.825000 000000 : 7390.100000 000000 - 9 0 ( 0.000139%000000%) 73 90.100000 000000 : 91100.375000 000000 - 0 ( 0.000000%) | Image RemovedImage Added | |
0.125x0.125 | Maximum difference = 92.937500 Minimum difference = -80.062500 Average difference = -0.000149 Mean absolute difference = - 0.000149297040 Median absolute difference = - 0.062500 Standard deviation = 1.112258 Variance RMS of differences = 1.237119112258RMS of differences = 1.112258 Percentage of points with absolute difference < 1.0 = 95.244% < 2.0 = 97.784% < 10.0 = 99.717% | -100.000000 : -90.000000 - 0 ( 0.000000%) -90.000000 : -80.000000 -92.937500 : -74.350000 - 1 ( 0.000024%) -80.000000 : -70.000000 - 3 ( 0.000072%) -74.350000 : -55.762500 - 13 -70.000000 : -60.000000 - 10 ( 0.000241%) -60.000000 : -50.000000 - 7 ( 0.000169%) -50.000000 : -40.000000 - 26 ( 0.000313%000626%) -5540.762500 000000 : -3730.175000 000000 - 49 84 ( 0.001181%002024%) -3730.175000 000000 : -1820.587500 000000 - 563 387 ( 0.009325%) -20.000000 : -10.000000 - 5446 ( 0.013566%131226%) -1810.587500 000000 : 0.000000 - 2867529 2862191 ( 6968.095752%967128%) 0.000000 : 1810.587500 000000 - 1281313 1276136 ( 30.874417%749672%) 18 10.587500 : 37.175000 - 556 000000 : 20.000000 - 5303 ( 0.127781%) 20.000000 : 30.000000 - 362 ( 0.013397%008723%) 37 30.175000 : 55.762500 - 46 000000 : 40.000000 - 81 ( 0.001952%) 40.000000 : 50.000000 - 28 ( 0.000675%) 50.000000 : 60.000000 - 9 ( 0.000217%) 60.000000 : 70.000000 - 2 ( 0.001108%000048%) 55 70.762500 : 74.350000 - 6 000000 : 80.000000 - 3 ( 0.000072%) 80.000000 : 90.000000 - 0 ( 0.000145%000000%) 74 90.350000 000000 : 92100.937500 000000 - 4 1 ( 0.000096%000024%) | Image RemovedImage Added | |
0.25x0.25 | Maximum difference = 92.875000 Minimum difference = -61.875000 Average difference = 0.000752 Mean absolute difference = 0.000752338583 Median absolute difference = - 0.125000 Standard deviation = 1.266861 Variance RMS of differences = 1.604937266861RMS of differences = 1.266861 Percentage of points with absolute difference < 1.0 = 95.149% < 2.0 = 97.663% < 10.0 = 99.580% | -100.000000 : -90.000000 - 0 ( 0.000000%) -90.000000 : -80.000000 - 0 ( 0.000000%) -80.000000 : -70.000000 -92.875000 : -74.300000 - 0 ( 0.000000%) -70.000000 : -60.000000 - 4 ( 0.000385%) -7460.300000 000000 : -5550.725000 000000 - 4 ( 0.000385%) -55.725000 : -37.150000 - 12 -50.000000 : -40.000000 - 6 ( 0.000578%) -40.000000 : -30.000000 - 15 ( 0.001156%001445%) -3730.150000 000000 : -1820.575000 000000 - 150 101 ( 0.009728%) -20.000000 : -10.000000 - 2043 ( 0.014448%196775%) -1810.575000 000000 : 0.000000 - 529369 527362 ( 50.987151%793843%) 0.000000 : 1810.575000 000000 - 508549 506516 ( 48.981835%) 18.575000 : 37.150000 - 141 786022%) 10.000000 : 20.000000 - 2066 ( 0.198991%) 20.000000 : 30.000000 - 93 ( 0.013581%008957%) 37 30.150000 000000 : 5540.725000 - 12 000000 - 19 ( 0.001830%) 40.000000 : 50.000000 - 6 ( 0.000578%) 50.000000 : 60.000000 - 2 ( 0.000193%) 60.000000 : 70.000000 - 1 ( 0.001156%000096%) 55 70.725000 000000 : 7480.300000 000000 - 1 ( 0.000096%) 80.000000 : 90.000000 - 0 ( 0.000000%) 74 90.300000 000000 : 92100.875000 000000 - 2 1 ( 0.000193%000096%) | Image RemovedImage Added | |
0.5x0.5 | Maximum difference = 51.000000 Minimum difference = -61.000000 Average difference = 0.004363 Mean absolute difference = 0.004363309541 Median absolute difference = 0.000000 Standard deviation = 1.523147 Variance = 2.319977 RMS of differences = 1.523153 Percentage of points with absolute difference < 1.0 = 94.304% < 2.0 = 97.268% < 10.0 = 99.306% | -70.000000 : -60.000000 - 2 ( 0.000769%) -60.000000 : -50.000000 - 1 ( 0.000385%) -6150.000000 : -4840.800000 000000 - 3 1 ( 0.001154%000385%) -4840.800000 000000 : -3630.600000 000000 - 2 3 ( 0.000769%001154%) -3630.600000 000000 : -2420.400000 000000 - 13 21 ( 0.005002%008079%) -2420.400000 000000 : -1210.200000 000000 - 818 855 ( 0.314712%328947%) -1210.200000 000000 : 0.000000 - 41933 41886 ( 16.133041%114958%) 0.000000 : 1210.200000 000000 - 216306 216238 ( 83.220222%194060%) 12 10.200000 000000 : 2420.400000 000000 - 825 871 ( 0.317405%335103%) 24 20.400000 000000 : 3630.600000 000000 - 15 33 ( 0.012696%) 30.000000 : 40.000000 - 6 ( 0.005771%002308%) 36 40.600000 000000 : 4850.800000 000000 - 4 2 ( 0.001539%000769%) 48 50.800000 000000 : 6160.000000 - 1 ( 0.000385%) 60.000000 : 70.000000 - 0 ( 0.000000%) | Image RemovedImage Added | |
1.0x1.0 | Maximum difference = 50.937500 Minimum difference = -60.812500 Average difference = 0.012001 Mean absolute difference = 0.012001437874 Median absolute difference = - 0.062500 Standard deviation = 1.932739 Variance = 3.735481 RMS of differences = 1.932777 Percentage of points with absolute difference < 1.0 = 94.672% < 2.0 = 96.980% < 10.0 = 98.766% | -70.000000 : -60.000000 -60.812500 : -48.650000 - 1 ( 0.001535%) -48.650000 : -36.487500 -60.000000 : -50.000000 - 0 ( 0.000000%) -50.000000 : -40.000000 - 0 ( 0.000000%) -3640.487500 000000 : -2430.325000 000000 - 0 ( 0.000000%) -24.325000 : -12.162500 - 382 30.000000 : -20.000000 - 2 ( 0.003069%) -20.000000 : -10.000000 - 389 ( 0.586249%596992%) -1210.162500 000000 : 0.000000 - 44628 44619 ( 68.489871%476059%) 0.000000 : 1210.162500 000000 - 19754 19737 ( 30.316145%290055%) 12 10.162500 000000 : 2420.325000 000000 - 388 401 ( 0.595457%615408%) 24.325000 : 36.487500 - 6 20.000000 : 30.000000 - 9 ( 0.013812%) 30.000000 : 40.000000 - 1 ( 0.009208%001535%) 36 40.487500 000000 : 4850.650000 000000 - 0 ( 0.000000%) 48 50.650000 000000 : 60.812500 000000 - 1 ( 0.001535%) 60.000000 : 70.000000 - 0 ( 0.000000%) | Image AddedImage Removed | |