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Comment: Confirmed: Information provided here refers to the introduction of MIR and is currently up to date.

HRES O1280

...

 Soil type is a index taking an integer value between 1 and

...

7 over land points and 0 over sea points.  It is interpolated using a nearest neighbour method

...

. Differences occur due to the different selection of nearest points from the source grid.

HRES O1280

Soil type has been interpolated from the O1280 octahedral reduced Gaussian grid to regular lat-lon grids at different target target resolutions using EMOSLIB and MIR. 

  • In general, the selection of the nearest neighbour point is in agreement with that returned by the ecCodes find_nearest routine
  • Many differences occur close to the coasts due to the absence of any land sea-mask processing by MIR
  • Typically, fewer than 1% of points are different

The plots show the differences with the contours chosen on a logarithmic scale to enhance the smaller differences.  Differences smaller than 0.5% of the field range are not shown. Grid points where the absolute difference is greater than 50% of the maximum absolute difference are indicated with red (EMOSLIB greater than MIR) and blue (EMOSLIB less than MIR) filled circles.


000000 .600000    225 003470%)  600000 200000             200000 800000    1260 019434%800000 400000            400000 000000            000000 400000 -        6472764 ( 99.832871%)
1.400000 800000            .800000 200000    1251 019295%200000 600000             .600000 000000    226 003486% -7.000000 600000 -            157 003783%600000 200000             .200000 800000 -            818 019710%800000 400000            400000 000000            000000 400000 -        4143015 ( 99.829762%)
1.400000 800000            800000 200000 -            840 020241%200000 600000             600000 000000 -            141 003398%-7.000000 600000 -              4 006139%600000 200000               .200000 800000 -             20 030694%800000 400000              400000 000000              000000 400000 -          64962 ( 99.696133%)
1.400000 800000              800000 200000    26 039902%200000 600000               600000 7000000              
Target resolutionStatistics of differencesHistogram of differeneceGlobalEurope
0.1x0.1

Maximum difference = 7.000000
Minimum difference = -7.000000
Average difference = 0.000119
Mean absolute difference = 0.000119004536
Median absolute difference = 0.000000
Standard deviation = 0.114896
Variance RMS of differences = 0.013201114896RMS of differences = 0.114896

Percentage of points with absolute difference

        < 1.0 = 99.777%
        < 2.0 = 99.883%

-7.

5 : -6.5

-

        

11 (  0.

000170%)
-6.5 : -5.5 -        214 (  0.003301%)
-5.

5 : -4.

5 -

        301 (  0.004642%)
-4.

5 : -3.5 -        574 (  0.008853%)
-3.5 : -2.

5 -

       

686 (  0.

010581%)
-2.

5 : -1.

5 -

       1918 (  0.029582%)
-1.

5 : -0.

5 -

       3263 (  0.050327%)
-0.

5 : 0.5 -    6469117 ( 99.776621%)
  0.5 : 1.

5 -       3647 (  0.056250%)
  1.5 : 2.

5 -

       2066 (  0.031865%)
  2

.5 : 3.5 -        695 (  0.010719%)
  3.5 : 4.

5 -

       

556 (  0.

008575%)
  4.

5 : 5.

5 -

        326 (  0.005028%)
  5.5

: 6.5 -        212 (  0.003270%)
  6.5 : 7.

5 -

        

14 (  0.

000216%)

Image RemovedImage Added

0.125x0.125

Maximum difference = 7.000000
Minimum difference = -7.000000
Average difference = 0.000156
Mean absolute difference = 0.000156004631
Median absolute difference = 0.000000
Standard deviation = 0.115920
Variance RMS of differences = 0.013438115921RMS of differences = 0.115921

Percentage of points with absolute difference

        < 1.0 = 99.772%
        < 2.0 = 99.881%

-7.5 : -6.5 -          8 (  0.000193%)
-6.5 : -5.

5 -        149 (  0.

003590%)
-5.

5 : -4.

5 -

        176 (  0.004241%)
-4

.5 : -3.5 -        350 (  0.008434%)
-3.5 : -2.

5 -        468 (  0.

011277%)
-2.

5 : -1.

5 -

       1272 (  0.030650%)
-1.

5 : -0.

5 -

       2108 (  0.050794%)
-0.

5 : 0.5 -    4140598 ( 99.771522%)
  0.5 : 1.

5 -       2417 (  0.058240%)
  1.5 : 2.

5 -

       1334 (  0.032144%)
    2.

5 : 3.5 -        458 (  0.011036%)
    3.5 : 4.

5 -        382 (  0.

009205%)
    4.

5 : 5.

5 -

        219 (  0.005277%)
    5.

5 : 6.5 -        136 (  0.003277%)
    6.5 : 7.

5 -          5 (  0.

000120%)

Image RemovedImage Added

0.25x0.25

Maximum difference = 7.000000
Minimum difference = -7.000000
Average difference = 0.000132
Mean absolute difference = 0.000132005759
Median absolute difference = 0.000000
Standard deviation = 0.128737
Variance RMS of differences = 0.016573128737RMS of differences = 0.128737

Percentage of points with absolute difference

        < 1.0 = 99.717%
        < 2.0 = 99.849%



-7.5 : -6.5 -          3 (  0.000289%)
-6.5

-7.000000

: -5.

600000 -             47

5 -         44 (  0.

004527%

004238%)
-5.

600000

5 : -4.

200000

5 -

            

         51 (  0.004912%)
-4

.200000

.5 : -3.5 -         94 (  0.009054%)
-3.5 : -2.

800000 -            261

5 -        167 (  0.

025139%

016085%)
-2.

800000

5 : -1.

400000

5 -

           

        428 (  0.041224%)
-1.

400000

5 : -0.

000000

5 -

           

        648 (  0.062413%)
-0.

000000

5 : 0.5 -    1035299 ( 99.716732%)
  0.5 : 1.

400000 -        1036020 ( 99.786177%)
1.400000

5 -        721 (  0.069444%)
  1.5 : 2.

800000

5 -

           

        392 (  0.037756%)
  2.

800000

5 : 3.5 -        166 (  0.015989%)
  3.5 : 4.

200000 -            292

5 -        126 (  0.

028125%

012136%)
  4.

200000

5 : 5.

600000

5 -

            

         57 (  0.005490%)
  5.5 : 6.5

.600000

-         42 (  0.004045%)
  6.5 : 7.

000000

5 -

  

         

44

2 (  0.

004238%

000193%)

Image RemovedImage Added

0.5x0.5

Maximum difference = 7.000000
Minimum difference = -7.000000
Average difference = 0.000269
Mean absolute difference = 0.000269008279
Median absolute difference = 0.000000
Standard deviation = 0.155042
Variance RMS of differences = 0.024038155042RMS of differences = 0.155042

Percentage of points with absolute difference

        < 1.0 = 99.597%
        < 2.0 = 99.784%

-7.5 : -6.5 -          2 (  0.000769%)
-6.5

-7.000000

: -5.

600000 -             13

5 -         11 (  0.

005002%

004232%)
-5.

600000

5 : -4.

200000

5 -

            

         24 (  0.009234%)
-4

.200000

.5 : -3.5 -         37 (  0.014235%)
-3.5 : -2.

800000

5 -

  

        

100

63 (  0.

038473%

024238%)
-2.

800000

5 : -1.

400000

5 -

           

        138 (  0.053093%)
-1.

400000

5 : -0.

000000

5 -

           

        228 (  0.087719%)
-0.5 : 0.5 -     258873 ( 99.597184%)
    0.

000000

5 : 1.

400000 -         259131 ( 99.696445%)
1.400000

5 -        258 (  0.099261%)
    1.5 : 2.

800000

5 -

           

        135 (  0.051939%)
    2

.800000

.5 : 3.5 -         73 (  0.028086%)
    3.5 : 4.

200000

5 -

  

        

120

47 (  0.

046168%

018082%)
    4.

200000

5 : 5.

600000

5 -

            

         11 (  0.004232%)
    5.5 : 6.5

.600000

-         19 (  0.007310%)
    6.5 : 7.

000000

5 -

  

         

20

1 (  0.

007695%

000385%)

Image RemovedImage Added

1.0x1.0

Maximum difference = 6.000000
Minimum difference = -7.000000
Average difference = -0.000153
Mean Mean absolute difference = - 0.000153007766
Median absolute difference = 0.000000
Standard deviation = 0.144895
Variance RMS of differences = 0.020994144895RMS of differences = 0.144895

 Percentage of points with absolute difference

        < 1.0 = 99.601%
        < 2.0 = 99.790%

-7.5 : -6.5 -          1 (  0.001535%)
-6.5 : -5.

5 -          3 (  0.

004604%)
-5.

5 : -4.

5 -

          5 (  0.007673%)
-4

.5 : -3.5 -          7 (  0.010743%)
-3.5 : -2.

5 -         13 (  0.

019951%)
-2.

5 : -1.

5 -

         40 (  0.061387%)
-1.

5 : -0.

5 -

         61 (  0.093616%)
-0.

5 : 0.5 -      64900 ( 99.600982%)
    0.5 : 1.

5 -         62 (  0.095150%)
    1.5 : 2.

5 -

         36 (  0.055249%)
    2.

5 : 3.5 -         21 (  0.032228%)
    3.5 : 4.

5 -

         

5 (  0.

007673%)
    4.

5 : 5.

5 -

          5 (  0.007673%)
    5.

5 :

6.

5 -

          1 (  0.001535%)
    6.5 : 7.5 -          0 (  0.000000%)

Image RemovedImage Added