[ncl-talk] select sub_region

Wed Dec 15 04:00:13 MST 2021

Hi Chatchurika,

it is very hard to say what is going wrong without the data and only the 
information 'It does not select the Pacifik Ocean'. Can you send one 
timestep of your data and best would be to provide your NCL script.

-Karin

Am 14.12.21 um 18:17 schrieb Chathurika:
>
> Dear Karin,
>
>
> Many many thanks for your email. I am sorry It is a typo. I actually 
> did try this
>
>> = f->tauuo(:,{10:75},{-120:120}) and vice versa.
>> = f->tauuo(:,{10:75},300:60}) and vice versa.
>>
> However, It does not select the Pacific Ocean.
>
> Summary of longitude is;
>
>
> Variable: lon (coordinate)
>
> Type: double
>
> Total Size: 2888 bytes
>
> 361 values
>
> Number of Dimensions: 1
>
> Dimensions and sizes: [lon | 361]
>
> Coordinates:
>
> Number Of Attributes: 4
>
> standard_name : longitude
>
> long_name : longitude
>
> units : degrees_east
>
> axis : X
>
> (0) -180
>
> (1) -179
>
> (2) -178
>
> (3) -177
>
> (4) -176
>
> (5) -175
>
> (6) -174
>
> (7) -173
>
> (8) -172
>
> (9) -171
>
> (10) -170
>
> (11) -169
>
> (12) -168
>
> (13) -167
>
> (14) -166
>
> (15) -165
>
> (16) -164
>
> (17) -163
>
> (18) -162
>
> (19) -161
>
> (20) -160
>
> (21) -159
>
> (22) -158
>
> (23) -157
>
> (24) -156
>
> (25) -155
>
> (26) -154
>
> (27) -153
>
> (28) -152
>
> (29) -151
>
> (30) -150
>
> (31) -149
>
> (32) -148
>
> (33) -147
>
> (34) -146
>
> (35) -145
>
> (36) -144
>
> (37) -143
>
> (38) -142
>
> (39) -141
>
> (40) -140
>
> (41) -139
>
> (42) -138
>
> (43) -137
>
> (44) -136
>
> (45) -135
>
> (46) -134
>
> (47) -133
>
> (48) -132
>
> (49) -131
>
> (50) -130
>
> (51) -129
>
> (52) -128
>
> (53) -127
>
> (54) -126
>
> (55) -125
>
> (56) -124
>
> (57) -123
>
> (58) -122
>
> (59) -121
>
> (60) -120
>
> (61) -119
>
> (62) -118
>
> (63) -117
>
> (64) -116
>
> (65) -115
>
> (66) -114
>
> (67) -113
>
> (68) -112
>
> (69) -111
>
> (70) -110
>
> (71) -109
>
> (72) -108
>
> (73) -107
>
> (74) -106
>
> (75) -105
>
> (76) -104
>
> (77) -103
>
> (78) -102
>
> (79) -101
>
> (80) -100
>
> (81) -99
>
> (82) -98
>
> (83) -97
>
> (84) -96
>
> (85) -95
>
> (86) -94
>
> (87) -93
>
> (88) -92
>
> (89) -91
>
> (90) -90
>
> (91) -89
>
> (92) -88
>
> (93) -87
>
> (94) -86
>
> (95) -85
>
> (96) -84
>
> (97) -83
>
> (98) -82
>
> (99) -81
>
> (100) -80
>
> (101) -79
>
> (102) -78
>
> (103) -77
>
> (104) -76
>
> (105) -75
>
> (106) -74
>
> (107) -73
>
> (108) -72
>
> (109) -71
>
> (110) -70
>
> (111) -69
>
> (112) -68
>
> (113) -67
>
> (114) -66
>
> (115) -65
>
> (116) -64
>
> (117) -63
>
> (118) -62
>
> (119) -61
>
> (120) -60
>
> (121) -59
>
> (122) -58
>
> (123) -57
>
> (124) -56
>
> (125) -55
>
> (126) -54
>
> (127) -53
>
> (128) -52
>
> (129) -51
>
> (130) -50
>
> (131) -49
>
> (132) -48
>
> (133) -47
>
> (134) -46
>
> (135) -45
>
> (136) -44
>
> (137) -43
>
> (138) -42
>
> (139) -41
>
> (140) -40
>
> (141) -39
>
> (142) -38
>
> (143) -37
>
> (144) -36
>
> (145) -35
>
> (146) -34
>
> (147) -33
>
> (148) -32
>
> (149) -31
>
> (150) -30
>
> (151) -29
>
> (152) -28
>
> (153) -27
>
> (154) -26
>
> (155) -25
>
> (156) -24
>
> (157) -23
>
> (158) -22
>
> (159) -21
>
> (160) -20
>
> (161) -19
>
> (162) -18
>
> (163) -17
>
> (164) -16
>
> (165) -15
>
> (166) -14
>
> (167) -13
>
> (168) -12
>
> (169) -11
>
> (170) -10
>
> (171) -9
>
> (172) -8
>
> (173) -7
>
> (174) -6
>
> (175) -5
>
> (176) -4
>
> (177) -3
>
> (178) -2
>
> (179) -1
>
> (180) 0
>
> (181) 1
>
> (182) 2
>
> (183) 3
>
> (184) 4
>
> (185) 5
>
> (186) 6
>
> (187) 7
>
> (188) 8
>
> (189) 9
>
> (190) 10
>
> (191) 11
>
> (192) 12
>
> (193) 13
>
> (194) 14
>
> (195) 15
>
> (196) 16
>
> (197) 17
>
> (198) 18
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> (199) 19
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> (200) 20
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> (201) 21
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> (202) 22
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> (203) 23
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> (204) 24
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> (205) 25
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> (206) 26
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> (207) 27
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> (208) 28
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> (209) 29
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> (210) 30
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> (211) 31
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> (212) 32
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> (213) 33
>
> (214) 34
>
> (215) 35
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> (216) 36
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> (217) 37
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> (218) 38
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> (219) 39
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> (222) 42
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> (223) 43
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> (225) 45
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> (226) 46
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> (227) 47
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> (230) 50
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> (231) 51
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> (232) 52
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> (233) 53
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> (234) 54
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> (235) 55
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> (236) 56
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> (237) 57
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> (238) 58
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> (239) 59
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> (240) 60
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> (241) 61
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> (242) 62
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> (243) 63
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> (244) 64
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> (245) 65
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> (246) 66
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> (247) 67
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> (248) 68
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> (249) 69
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> (250) 70
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> (251) 71
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> (252) 72
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> (253) 73
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> (254) 74
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> (255) 75
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> (256) 76
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> (257) 77
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> (258) 78
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> (259) 79
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> (260) 80
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> (261) 81
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> (262) 82
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> (263) 83
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> (264) 84
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> (265) 85
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> (266) 86
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> (267) 87
>
> (268) 88
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> (269) 89
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> (270) 90
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> (271) 91
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> (272) 92
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> (273) 93
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> (274) 94
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> (275) 95
>
> (276) 96
>
> (277) 97
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> (278) 98
>
> (279) 99
>
> (280) 100
>
> (281) 101
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> (282) 102
>
> (283) 103
>
> (284) 104
>
> (285) 105
>
> (286) 106
>
> (287) 107
>
> (288) 108
>
> (289) 109
>
> (290) 110
>
> (291) 111
>
> (292) 112
>
> (293) 113
>
> (294) 114
>
> (295) 115
>
> (296) 116
>
> (297) 117
>
> (298) 118
>
> (299) 119
>
> (300) 120
>
> (301) 121
>
> (302) 122
>
> (303) 123
>
> (304) 124
>
> (305) 125
>
> (306) 126
>
> (307) 127
>
> (308) 128
>
> (309) 129
>
> (310) 130
>
> (311) 131
>
> (312) 132
>
> (313) 133
>
> (314) 134
>
> (315) 135
>
> (316) 136
>
> (317) 137
>
> (318) 138
>
> (319) 139
>
> (320) 140
>
> (321) 141
>
> (322) 142
>
> (323) 143
>
> (324) 144
>
> (325) 145
>
> (326) 146
>
> (327) 147
>
> (328) 148
>
> (329) 149
>
> (330) 150
>
> (331) 151
>
> (332) 152
>
> (333) 153
>
> (334) 154
>
> (335) 155
>
> (336) 156
>
> (337) 157
>
> (338) 158
>
> (339) 159
>
> (340) 160
>
> (341) 161
>
> (342) 162
>
> (343) 163
>
> (344) 164
>
> (345) 165
>
> (346) 166
>
> (347) 167
>
> (348) 168
>
> (349) 169
>
> (350) 170
>
> (351) 171
>
> (352) 172
>
> (353) 173
>
> (354) 174
>
> (355) 175
>
> (356) 176
>
> (357) 177
>
> (358) 178
>
> (359) 179
>
> (360) 180
>
>
> It always select the middle part instead of Pacific.
>
>
> Thank you very very much and best regards,
>
> Chathu
>
>     -----Original Messages-----
>     *From:*"Karin Meier-Fleischer via ncl-talk"
>     <ncl-talk at mailman.ucar.edu>
>     *Sent Time:*2021-12-14 20:33:47 (Tuesday)
>     *To:* ncl-talk at mailman.ucar.edu
>     *Cc:*
>     *Subject:* Re: [ncl-talk] select sub_region
>
>     Hi Chatchu,
>
>     you should have received an error message because you try to
>     extract data from a 4D variable tauuo which seems to be a 3D
>     variable (with a different name tauuo_ssp ??).
>
>     Variable: tauuo_ssp
>     ...
>     Dimensions and sizes: [time | 720] x [lat | 66] x [lon | 360]
>     Coordinates:
>            time: [569784..744360]
>            lat: [  10..  75]
>            lon: [ 180..-180]
>
>     Try
>
>        variable = f->tauuo_ssp(:,:,{-120.:120.})
>
>     -Karin
>
>
>     Am 14.12.21 um 13:12 schrieb Chathurika via ncl-talk:
>>
>>     Hello Everyone,
>>
>>
>>     I have a dataset and the variable summary as follows;
>>
>>
>>     Variable: tauuo_ssp
>>     Type: float
>>     Total Size: 45809280 bytes
>>      11452320 values
>>     Number of Dimensions: 3
>>     Dimensions and sizes: [time | 720] x [lat | 66] x [lon | 360]
>>     Coordinates:
>>      time: [569784..744360]
>>      lat: [  10..  75]
>>      lon: [ 180..-180]
>>     Number Of Attributes: 7
>>       depth :  0
>>     standard_name : surface_downward_x_stress
>>     long_name : Surface downward x stress
>>       units : N m-2
>>       code : 548
>>     _FillValue : -9e+33
>>     missing_value : -9e+33
>>
>>     I want to select the pacific ocean (-120:120). However, this does
>>     not work. I tried out several ways to choose this subsection, but
>>     I always got the part that I wanted to subtract between -120:120
>>     (means Atlantic plus the Indian Ocean instead of Pacific Ocean).
>>
>>
>>     I tried this
>>
>>
>>     = f->tauuo(:,0,{10:75},{-120:120}) and vice versa.
>>     = f->tauuo(:,0,{10:75},300:60}) and vice versa.
>>
>>     Nothing selected the Pacific Ocean from 120E to 120W.
>>
>>
>>     Could you please give me a hint on how I could do this? That
>>     would be a great help.
>>
>>
>>     Thank you very very much and best regards,
>>     Chathu
>>
>>     ------------------------------------------------------------------------
>>
>>
>>
>>
>>         //
>>         //
>>         //
>>         //
>>
>>
>>     _______________________________________________
>>     ncl-talk mailing listncl-talk at mailman.ucar.edu  List instructions, subscriber options, unsubscribe:https://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
>
>
>
> ------------------------------------------------------------------------
>
>
>
>     Wickramage Chathurika Hemamali
>     Msc in Physical Oceanography
>     State Key Laboratory of Tropical Oceanography
>     South China Sea Institute of Oceanology
>     University of Chinese Academy of Science
>     China
>
>     /Specialized in Oceanography and Marine Geology (Bachelor)/
>     /University of Ruhuna/
>     /Matara/
>     /Sri Lanka/
>
>     Email : wickramagechathurika at rocketmail.com
>     chatu at scsio.ac.cn
>
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