Gaussian grid (ガウス格子)について


NCEP/NCAR Reanalysis で使用しているガウス格子は、
  • 東西方向:1.875度、0E 起点で192地点
  • 南北方向:可変、北極 => 南極の方向、94地点

    Gaussian latitude のリストは以下の通り:
    J-index latitude(deg N) cos(latitude)
    1 88.5420 0.0254
    2 86.6532 0.0584
    3 84.7532 0.0914
    4 82.8508 0.1245
    5 80.9474 0.1573
    6 79.0435 0.1901
    7 77.1393 0.2226
    8 75.2351 0.2549
    9 73.3307 0.2868
    10 71.4262 0.3185
    11 69.5217 0.3499
    12 67.6171 0.3808
    13 65.7125 0.4113
    14 63.8079 0.4414
    15 61.9033 0.4710
    16 59.9986 0.5000
    17 58.0940 0.5285
    18 56.1893 0.5565
    19 54.2846 0.5838
    20 52.3799 0.6104
    21 50.4752 0.6364
    22 48.5705 0.6617
    23 46.6658 0.6863
    24 44.7611 0.7100
    25 42.8564 0.7331
    26 40.9517 0.7553
    27 39.0470 0.7766
    28 37.1422 0.7971
    29 35.2375 0.8168
    30 33.3328 0.8355
    31 31.4281 0.8533
    32 29.5234 0.8702
    33 27.6186 0.8861
    34 25.7139 0.9010
    35 23.8092 0.9149
    36 21.9044 0.9278
    37 19.9997 0.9397
    38 18.0950 0.9505
    39 16.1902 0.9603
    40 14.2855 0.9691
    41 12.3808 0.9767
    42 10.4760 0.9833
    43 8.5713 0.9888
    44 6.6666 0.9932
    45 4.7618 0.9965
    46 2.8571 0.9988
    47 0.9524 0.9999
    48 -0.9524 0.9999
    49 -2.8571 0.9988
    50 -4.7618 0.9965
    51 -6.6666 0.9932
    52 -8.5713 0.9888
    53 -10.4760 0.9833
    54 -12.3808 0.9767
    55 -14.2855 0.9691
    56 -16.1902 0.9603
    57 -18.0950 0.9505
    58 -19.9997 0.9397
    59 -21.9044 0.9278
    60 -23.8092 0.9149
    61 -25.7139 0.9010
    62 -27.6186 0.8861
    63 -29.5234 0.8702
    64 -31.4281 0.8533
    65 -33.3328 0.8355
    66 -35.2375 0.8168
    67 -37.1422 0.7971
    68 -39.0470 0.7766
    69 -40.9517 0.7553
    70 -42.8564 0.7331
    71 -44.7611 0.7100
    72 -46.6658 0.6863
    73 -48.5705 0.6617
    74 -50.4752 0.6364
    75 -52.3799 0.6104
    76 -54.2846 0.5838
    77 -56.1893 0.5565
    78 -58.0940 0.5285
    79 -59.9986 0.5000
    80 -61.9033 0.4710
    81 -63.8079 0.4414
    82 -65.7125 0.4113
    83 -67.6171 0.3808
    84 -69.5217 0.3499
    85 -71.4262 0.3185
    86 -73.3307 0.2868
    87 -75.2351 0.2549
    88 -77.1393 0.2226
    89 -79.0435 0.1901
    90 -80.9474 0.1573
    91 -82.8508 0.1245
    92 -84.7532 0.0914
    93 -86.6532 0.0584
    94 -88.5420 0.0254