JRA-25 Regular N80 Gaussian Grid Numerical Values

The regular Gaussian grid is used in JRA-25. The curvilinear longitude increment was computed as where is the radius of the Earth (6370.0 km), the Gaussian latitude, and the number of equally spaced longitudinal grid points per circle of Gaussian latitude (320). Wheat background color indicates Northern Hemisphere values, light blue background color Southern Hemisphere values. Note how the values are symmetric about the Equator.
index latitude, °N Gaussian weight number of longitudes first longitude, °E last longitude, °E longitude increment, ° longitude increment, km
1 89.14152 0.000283 320 0.0 358.875 1.125 1.874
2 88.02943 0.000674 320 0.0 358.875 1.125 4.301
3 86.91077 0.001051 320 0.0 358.875 1.125 6.740
4 85.79063 0.001437 320 0.0 358.875 1.125 9.181
5 84.66992 0.001815 320 0.0 358.875 1.125 11.619
6 83.54895 0.002198 320 0.0 358.875 1.125 14.053
7 82.42782 0.002577 320 0.0 358.875 1.125 16.482
8 81.30659 0.002959 320 0.0 358.875 1.125 18.905
9 80.18531 0.003337 320 0.0 358.875 1.125 21.320
10 79.06398 0.003713 320 0.0 358.875 1.125 23.728
11 77.94262 0.004089 320 0.0 358.875 1.125 26.127
12 76.82124 0.004462 320 0.0 358.875 1.125 28.516
13 75.69984 0.004834 320 0.0 358.875 1.125 30.894
14 74.57843 0.005204 320 0.0 358.875 1.125 33.260
15 73.45701 0.005573 320 0.0 358.875 1.125 35.613
16 72.33558 0.005939 320 0.0 358.875 1.125 37.953
17 71.21414 0.006303 320 0.0 358.875 1.125 40.278
18 70.09269 0.006665 320 0.0 358.875 1.125 42.588
19 68.97124 0.007023 320 0.0 358.875 1.125 44.881
20 67.84978 0.007380 320 0.0 358.875 1.125 47.158
21 66.72833 0.007733 320 0.0 358.875 1.125 49.416
22 65.60686 0.008083 320 0.0 358.875 1.125 51.655
23 64.48540 0.008431 320 0.0 358.875 1.125 53.875
24 63.36393 0.008775 320 0.0 358.875 1.125 56.074
25 62.24246 0.009116 320 0.0 358.875 1.125 58.251
26 61.12099 0.009453 320 0.0 358.875 1.125 60.406
27 59.99952 0.009787 320 0.0 358.875 1.125 62.538
28 58.87804 0.010117 320 0.0 358.875 1.125 64.646
29 57.75657 0.010443 320 0.0 358.875 1.125 66.730
30 56.63509 0.010765 320 0.0 358.875 1.125 68.787
31 55.51361 0.011083 320 0.0 358.875 1.125 70.819
32 54.39214 0.011397 320 0.0 358.875 1.125 72.823
33 53.27066 0.011705 320 0.0 358.875 1.125 74.799
34 52.14917 0.012010 320 0.0 358.875 1.125 76.747
35 51.02769 0.012311 320 0.0 358.875 1.125 78.665
36 49.90621 0.012606 320 0.0 358.875 1.125 80.553
37 48.78473 0.012897 320 0.0 358.875 1.125 82.410
38 47.66325 0.013183 320 0.0 358.875 1.125 84.236
39 46.54176 0.013463 320 0.0 358.875 1.125 86.030
40 45.42028 0.013739 320 0.0 358.875 1.125 87.790
41 44.29879 0.014009 320 0.0 358.875 1.125 89.517
42 43.17731 0.014274 320 0.0 358.875 1.125 91.209
43 42.05582 0.014534 320 0.0 358.875 1.125 92.867
44 40.93434 0.014787 320 0.0 358.875 1.125 94.489
45 39.81285 0.015035 320 0.0 358.875 1.125 96.075
46 38.69137 0.015278 320 0.0 358.875 1.125 97.624
47 37.56988 0.015514 320 0.0 358.875 1.125 99.135
48 36.44839 0.015745 320 0.0 358.875 1.125 100.609
49 35.32691 0.015970 320 0.0 358.875 1.125 102.044
50 34.20542 0.016188 320 0.0 358.875 1.125 103.440
51 33.08393 0.016399 320 0.0 358.875 1.125 104.797
52 31.96244 0.016606 320 0.0 358.875 1.125 106.113
53 30.84096 0.016805 320 0.0 358.875 1.125 107.388
54 29.71947 0.016999 320 0.0 358.875 1.125 108.623
55 28.59798 0.017185 320 0.0 358.875 1.125 109.816
56 27.47649 0.017366 320 0.0 358.875 1.125 110.966
57 26.35500 0.017540 320 0.0 358.875 1.125 112.074
58 25.23351 0.017706 320 0.0 358.875 1.125 113.140
59 24.11203 0.017866 320 0.0 358.875 1.125 114.162
60 22.99054 0.018020 320 0.0 358.875 1.125 115.140
61 21.86905 0.018165 320 0.0 358.875 1.125 116.074
62 20.74756 0.018305 320 0.0 358.875 1.125 116.964
63 19.62607 0.018436 320 0.0 358.875 1.125 117.808
64 18.50458 0.018561 320 0.0 358.875 1.125 118.608
65 17.38309 0.018680 320 0.0 358.875 1.125 119.362
66 16.26160 0.018791 320 0.0 358.875 1.125 120.071
67 15.14011 0.018894 320 0.0 358.875 1.125 120.733
68 14.01862 0.018991 320 0.0 358.875 1.125 121.350
69 12.89713 0.019080 320 0.0 358.875 1.125 121.919
70 11.77564 0.019162 320 0.0 358.875 1.125 122.442
71 10.65415 0.019236 320 0.0 358.875 1.125 122.919
72 9.53266 0.019304 320 0.0 358.875 1.125 123.348
73 8.41117 0.019363 320 0.0 358.875 1.125 123.729
74 7.28968 0.019416 320 0.0 358.875 1.125 124.064
75 6.16819 0.019461 320 0.0 358.875 1.125 124.351
76 5.04670 0.019498 320 0.0 358.875 1.125 124.590
77 3.92521 0.019528 320 0.0 358.875 1.125 124.781
78 2.80372 0.019550 320 0.0 358.875 1.125 124.925
79 1.68223 0.019565 320 0.0 358.875 1.125 125.021
80 0.56074 0.019573 320 0.0 358.875 1.125 125.069
81 -0.56074 0.019573 320 0.0 358.875 1.125 125.069
82 -1.68223 0.019565 320 0.0 358.875 1.125 125.021
83 -2.80372 0.019550 320 0.0 358.875 1.125 124.925
84 -3.92521 0.019528 320 0.0 358.875 1.125 124.781
85 -5.04670 0.019498 320 0.0 358.875 1.125 124.590
86 -6.16819 0.019461 320 0.0 358.875 1.125 124.351
87 -7.28968 0.019416 320 0.0 358.875 1.125 124.064
88 -8.41117 0.019363 320 0.0 358.875 1.125 123.729
89 -9.53266 0.019304 320 0.0 358.875 1.125 123.348
90 -10.65415 0.019236 320 0.0 358.875 1.125 122.919
91 -11.77564 0.019162 320 0.0 358.875 1.125 122.442
92 -12.89713 0.019080 320 0.0 358.875 1.125 121.919
93 -14.01862 0.018991 320 0.0 358.875 1.125 121.350
94 -15.14011 0.018894 320 0.0 358.875 1.125 120.733
95 -16.26160 0.018791 320 0.0 358.875 1.125 120.071
96 -17.38309 0.018680 320 0.0 358.875 1.125 119.362
97 -18.50458 0.018561 320 0.0 358.875 1.125 118.608
98 -19.62607 0.018436 320 0.0 358.875 1.125 117.808
99 -20.74756 0.018305 320 0.0 358.875 1.125 116.964
100 -21.86905 0.018165 320 0.0 358.875 1.125 116.074
101 -22.99054 0.018020 320 0.0 358.875 1.125 115.140
102 -24.11203 0.017866 320 0.0 358.875 1.125 114.162
103 -25.23351 0.017706 320 0.0 358.875 1.125 113.140
104 -26.35500 0.017540 320 0.0 358.875 1.125 112.074
105 -27.47649 0.017366 320 0.0 358.875 1.125 110.966
106 -28.59798 0.017185 320 0.0 358.875 1.125 109.816
107 -29.71947 0.016999 320 0.0 358.875 1.125 108.623
108 -30.84096 0.016805 320 0.0 358.875 1.125 107.388
109 -31.96244 0.016606 320 0.0 358.875 1.125 106.113
110 -33.08393 0.016399 320 0.0 358.875 1.125 104.797
111 -34.20542 0.016188 320 0.0 358.875 1.125 103.440
112 -35.32691 0.015970 320 0.0 358.875 1.125 102.044
113 -36.44839 0.015745 320 0.0 358.875 1.125 100.609
114 -37.56988 0.015514 320 0.0 358.875 1.125 99.135
115 -38.69137 0.015278 320 0.0 358.875 1.125 97.624
116 -39.81285 0.015035 320 0.0 358.875 1.125 96.075
117 -40.93434 0.014787 320 0.0 358.875 1.125 94.489
118 -42.05582 0.014534 320 0.0 358.875 1.125 92.867
119 -43.17731 0.014274 320 0.0 358.875 1.125 91.209
120 -44.29879 0.014009 320 0.0 358.875 1.125 89.517
121 -45.42028 0.013739 320 0.0 358.875 1.125 87.790
122 -46.54176 0.013463 320 0.0 358.875 1.125 86.030
123 -47.66325 0.013183 320 0.0 358.875 1.125 84.236
124 -48.78473 0.012897 320 0.0 358.875 1.125 82.410
125 -49.90621 0.012606 320 0.0 358.875 1.125 80.553
126 -51.02769 0.012311 320 0.0 358.875 1.125 78.665
127 -52.14917 0.012010 320 0.0 358.875 1.125 76.747
128 -53.27066 0.011705 320 0.0 358.875 1.125 74.799
129 -54.39214 0.011397 320 0.0 358.875 1.125 72.823
130 -55.51361 0.011083 320 0.0 358.875 1.125 70.819
131 -56.63509 0.010765 320 0.0 358.875 1.125 68.787
132 -57.75657 0.010443 320 0.0 358.875 1.125 66.730
133 -58.87804 0.010117 320 0.0 358.875 1.125 64.646
134 -59.99952 0.009787 320 0.0 358.875 1.125 62.538
135 -61.12099 0.009453 320 0.0 358.875 1.125 60.406
136 -62.24246 0.009116 320 0.0 358.875 1.125 58.251
137 -63.36393 0.008775 320 0.0 358.875 1.125 56.074
138 -64.48540 0.008431 320 0.0 358.875 1.125 53.875
139 -65.60686 0.008083 320 0.0 358.875 1.125 51.655
140 -66.72833 0.007733 320 0.0 358.875 1.125 49.416
141 -67.84978 0.007380 320 0.0 358.875 1.125 47.158
142 -68.97124 0.007023 320 0.0 358.875 1.125 44.881
143 -70.09269 0.006665 320 0.0 358.875 1.125 42.588
144 -71.21414 0.006303 320 0.0 358.875 1.125 40.278
145 -72.33558 0.005939 320 0.0 358.875 1.125 37.953
146 -73.45701 0.005573 320 0.0 358.875 1.125 35.613
147 -74.57843 0.005204 320 0.0 358.875 1.125 33.260
148 -75.69984 0.004834 320 0.0 358.875 1.125 30.894
149 -76.82124 0.004462 320 0.0 358.875 1.125 28.516
150 -77.94262 0.004089 320 0.0 358.875 1.125 26.127
151 -79.06398 0.003713 320 0.0 358.875 1.125 23.728
152 -80.18531 0.003337 320 0.0 358.875 1.125 21.320
153 -81.30659 0.002959 320 0.0 358.875 1.125 18.905
154 -82.42782 0.002577 320 0.0 358.875 1.125 16.482
155 -83.54895 0.002198 320 0.0 358.875 1.125 14.053
156 -84.66992 0.001815 320 0.0 358.875 1.125 11.619
157 -85.79063 0.001437 320 0.0 358.875 1.125 9.181
158 -86.91077 0.001051 320 0.0 358.875 1.125 6.740
159 -88.02943 0.000674 320 0.0 358.875 1.125 4.301
160 -89.14152 0.000283 320 0.0 358.875 1.125 1.874

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