This file is indexed.

/usr/share/ncarg/hluex/contourplot/cn15f.f is in libncarg-data 6.4.0-9.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
C
C      $Id: cn15f.f,v 1.12 2010-03-16 21:00:45 haley Exp $
C
C***********************************************************************
C                                                                      *
C                Copyright (C)  1997                                   *
C        University Corporation for Atmospheric Research               *
C     The use of this Software is governed by a License Agreement      *
C                                                                      *
C***********************************************************************
C
C  File:       cn15f.f
C
C   Author:     Bob Lackman
C               National Center for Atmospheric Research
C               PO 3000, Boulder, Colorado
C
C   Date:       Wed Jan 24, 1996
C
C   Description:    Combines a contour plot and an xy plot on a
C                   single frame.  Output goes to an X11 window,
C                   an NCGM, *and* a PostScript file.
C
      external NhlFAppClass
      external NhlFNcgmWorkstationClass
      external NhlFPSWorkstationClass
      external NhlFPDFWorkstationClass
      external NhlFCairoPSPDFWorkstationClass
      external NhlFCairoImageWorkstationClass
      external NhlFCairoWindowWorkstationClass
      external NhlFScalarFieldClass
      external NhlFTextItemClass
      external NhlFCoordArraysClass
      external NhlFContourPlotClass
      external NhlFMapPlotClass
      external NhlFXyPlotClass
      parameter(NLAT=91, NLON=181, NCOLORS=16)
C
C Declare variables for the HLU routine calls.
C
      integer appid, jan, cn, ice, mp, tx, srlist, zonal, xy_plot
C
C Declare variables for color map
C
      integer length(2)
      real cmap(3,NCOLORS)
C
C Declare variables for contour plot fills.
C
      integer linecolors(15),fillcolors(16)
      data linecolors/12,13,14,7,2,0,8,11,6,9,4,3,5,7,10/
      data fillcolors/0,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2/
C
C Declare variables for Tick Mark values.
C
      real xbvalues1(7),xbvalues2(11),ylvalues(7)
      character*4 xblabels1(7)
      character*2 xblabels2(11)
      character*3 yllabels(7)
      data xbvalues1/0,60,120,180,240,300,360/
      data xblabels1/'0','60E','120E','180','120W','60W','0'/
      data xbvalues2/0,3,6,9,12,15,18,21,24,27,30/
      data ylvalues/-90, -60,-30,0,30,60,90/
      data xblabels2/'0','3','6','9','12','15','18','21','24','27','30'/
      data yllabels/'90S','60S','30S','EQ','30N','60N','90N'/
C
C Declare variables to hold contour and xy plot data.
C
      real sstjan(NLON,NLAT), lat(NLAT), zoneave(NLAT)
      integer ocean1
      data zoneave/NLAT*1.e36/
C
C Declare variables for getting information from netCDF file.
C
      integer  ncid, lon_id, lat_id, stid
      integer start(3), count(3), lonlen, latlen
      character*256 filename
      character*50 recname
C
C Output to several workstations.
C
      integer ncgm1, x1, ps1, pdf1, ps2, pdf2, png1
C
C Generate a color map.
C
      cmap(1,1) = 1.00  ! white
      cmap(2,1) = 1.00
      cmap(3,1) = 1.00
      cmap(1,2) = 0.00  ! black
      cmap(2,2) = 0.00
      cmap(3,2) = 0.00
      cmap(1,3) = 0.00  ! blue
      cmap(2,3) = 0.00
      cmap(3,3) = 1.00
      cmap(1,4) = 0.20  ! sky blue
      cmap(2,4) = 0.56
      cmap(3,4) = 0.80
      cmap(1,5) = 0.00  ! cyan
      cmap(2,5) = 1.00
      cmap(3,5) = 1.00
      cmap(1,6) = 0.50  ! blue magenta
      cmap(2,6) = 0.00
      cmap(3,6) = 1.00
      cmap(1,7) = 0.00  ! green
      cmap(2,7) = 1.00
      cmap(3,7) = 0.00
      cmap(1,8) = 0.14  ! forest green
      cmap(2,8) = 0.56
      cmap(3,8) = 0.14
      cmap(1,9) = 1.00  ! yellow
      cmap(2,9) = 1.00
      cmap(3,9) = 0.00
      cmap(1,10) = 1.00  ! orange
      cmap(2,10) = 0.50
      cmap(3,10) = 0.00
      cmap(1,11) = 1.00 ! magenta
      cmap(2,11) = 0.00
      cmap(3,11) = 1.00
      cmap(1,12) = 1.00 ! red
      cmap(2,12) = 0.00
      cmap(3,12) = 0.00
      cmap(1,13) = 0.65 ! brown
      cmap(2,13) = 0.16
      cmap(3,13) = 0.16
      cmap(1,14) = 0.86 ! tan
      cmap(2,14) = 0.58
      cmap(3,14) = 0.44
      cmap(1,15) = 0.66 ! light gray
      cmap(2,15) = 0.66
      cmap(3,15) = 0.66
      cmap(1,16) = 0.40 ! dark gray
      cmap(2,16) = 0.40
      cmap(3,16) = 0.40
C
C Initialize the HLU library and set up resource template.
C A resource file is not used in this example, but if you did
C want one, it would be called "cn15.res".
C
      call NhlFInitialize
      call NhlFRLCreate(srlist,'setrl')
      call NhlFRLClear(srlist)
      call NhlFRLSetString(srlist,'appDefaultParent','True',ierr)
      call NhlFRLSetString(srlist,'appUsrDir','./',ierr)
      call NhlFCreate(appid,'cn15',NhlFAppClass,0,srlist,ierr)

C
C Create an NCGM workstation.
C
      length(1) = 3
      length(2) = NCOLORS

      call NhlFRLClear(srlist)
      call NhlFRLSetString(srlist,'wkMetaName','./cn15f.ncgm',ierr)
      call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,length,
     +     ierr)
      call NhlFCreate(ncgm1,'cn15Work',
     +     NhlFNcgmWorkstationClass,0,srlist,ierr)
C
C Create an XWorkstation object.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetString(srlist,'wkPause','True',ierr)
      call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,length,
     +     ierr)
      call NhlFCreate(x1,'cn15Work',
     +     NhlFCairoWindowWorkstationClass,
     +     0,srlist,ierr)
C
C Create an older-style PostScript workstation.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetString(srlist,'wkPSFileName','./cn15f.ps',ierr)
      call NhlFRLSetString(srlist,'wkVisualType','color',ierr)
C
C Since the plots are beside each other, use landscape mode and the
C PostScript resources for positioning the plot on the paper.
C
      call NhlFRLSetString(srlist,'wkOrientation','landscape',ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceLowerX',0,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceLowerY',60,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceUpperX',600,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceUpperY',700,ierr)
      call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,length,
     +     ierr)
      call NhlFCreate(ps1,'cn15Work',
     +     NhlFPSWorkstationClass,0,srlist,ierr)
C
C Create an older-style PDF workstation.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetString(srlist,'wkPDFFileName','./cn15f.pdf',ierr)
      call NhlFRLSetString(srlist,'wkVisualType','color',ierr)
C
C Since the plots are beside each other, use landscape mode and the
C PDF resources for positioning the plot on the paper.
C
      call NhlFRLSetString(srlist,'wkOrientation','landscape',ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceLowerX',0,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceLowerY',60,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceUpperX',600,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceUpperY',700,ierr)
      call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,length,
     +     ierr)
      call NhlFCreate(pdf1,'cn15Work',
     +     NhlFPDFWorkstationClass,0,srlist,ierr)
C
C Create a cairo PostScript workstation.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetString(srlist,'wkFileName','./cn15f.cairo',ierr)
      call NhlFRLSetString(srlist,'wkFormat','ps',ierr)
C
C Since the plots are beside each other, use landscape mode and the
C PostScript resources for positioning the plot on the paper.
C
      call NhlFRLSetString(srlist,'wkOrientation','landscape',ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceLowerX',0,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceLowerY',60,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceUpperX',600,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceUpperY',700,ierr)
      call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,length,
     +     ierr)
      call NhlFCreate(ps2,'cn15Work',
     +     NhlFCairoPSPDFWorkstationClass,0,srlist,ierr)
C
C Create a cairo PDF workstation.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetString(srlist,'wkFileName','./cn15f.cairo',ierr)
      call NhlFRLSetString(srlist,'wkFormat','pdf',ierr)
C
C Since the plots are beside each other, use landscape mode and the
C PostScript resources for positioning the plot on the paper.
C
      call NhlFRLSetString(srlist,'wkOrientation','landscape',ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceLowerX',0,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceLowerY',60,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceUpperX',600,ierr)
      call NhlFRLSetInteger(srlist,'wkDeviceUpperY',700,ierr)
      call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,length,
     +     ierr)
      call NhlFCreate(pdf2,'cn15Work',
     +     NhlFCairoPSPDFWorkstationClass,0,srlist,ierr)
C
C Create a cairo PNG workstation.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetString(srlist,'wkFileName','./cn15f.cairo',ierr)
      call NhlFRLSetString(srlist,'wkFormat','png',ierr)
      call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,length,
     +     ierr)
      call NhlFCreate(png1,'cn15Work',
     +     NhlFCairoImageWorkstationClass,0,srlist,ierr)
C
C Open and read NetCDF file.
C
      call gngpat(filename,'data',ierr)
      do 10 i=1,256
         if( filename(i:i).eq.char(0) ) then
            filename(i:i+21)='/cdf/sstdata_netcdf.nc'
            goto 15
         endif
 10   continue
C      
C The second argument to 'ncopn' should be NCNOWRIT, but since we
C can't include 'netcdf.inc', we are using the value '0' instead.
C
 15   ncid = ncopn(filename,0,ierr)
C
C Get the lat/lon dimensions.
C
      lat_id = ncdid(ncid,'latitude',ierr)
      lon_id = ncdid(ncid,'longitude',ierr)
      call ncdinq(ncid,lat_id,recname,latlen,ierr)
      call ncdinq(ncid,lon_id,recname,lonlen,ierr)

      start(1) = 1
      lat_id = ncvid(ncid,'lat',ierr)
      count(1) = latlen
      call ncvgt(ncid,lat_id,start,count,lat,ierr)
C
C Read in sstdata netCDF file.
C
      stid = ncvid(ncid,'sst',ierr)
      start(1) = 1
      start(2) = 1
      start(3) = 1
      count(1) = lonlen
      count(2) = latlen
      count(3) = 1
      call ncvgt(ncid,stid,start,count,sstjan,ierr)
C
C Close the netCDF file.
C
      call ncclos(ncid,ierr)
C
C Create an sst data object.
C
      count(1) = NLON
      count(2) = NLAT
      call NhlFRLClear(srlist)
      call NhlFRLSetMDFloatArray(srlist,'sfDataArray',sstjan,2,count,
     +     ierr)
      call NhlFRLSetFloat(srlist,'sfXCStartV',0.,ierr)
      call NhlFRLSetFloat(srlist,'sfXCEndV',360.,ierr)
      call NhlFRLSetFloat(srlist,'sfYCStartV',lat(1),ierr)
      call NhlFRLSetFloat(srlist,'sfYCEndV',lat(latlen),ierr)
      call NhlFCreate(jan,'sf',NhlFscalarFieldClass,appid,srlist,
     +     ierr)
C
C Create a ContourPlot object.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetInteger(srlist,'cnScalarFieldData',jan,ierr)
      call NhlFRLSetFloat(srlist,'vpXF',.06,ierr)
      call NhlFRLSetFloat(srlist,'vpYF',.65,ierr)
      call NhlFRLSetFloat(srlist,'vpWidthF',.60,ierr)
      call NhlFRLSetFloat(srlist,'vpHeightF',.30,ierr)
      call NhlFRLSetString(srlist,'cnInfoLabelOn','False',ierr)
      call NhlFRLSetString(srlist,'cnHighLabelsOn','False',ierr)
      call NhlFRLSetString(srlist,'cnLowLabelsOn','False',ierr)
      call NhlFRLSetString(srlist,'cnMonoLineColor','False',ierr)
      call NhlFRLSetIntegerArray(srlist,'cnLineColors',linecolors,15,
     +     ierr)
      call NhlFRLSetString(srlist,'cnLineDrawOrder','predraw',ierr)
      call NhlFRLSetString(srlist,'cnFillDrawOrder','predraw',ierr)
      call NhlFRLSetString(srlist,'cnLabelDrawOrder','predraw',ierr)
      call NhlFRLSetInteger(srlist,'cnLineLabelInterval',2,ierr)
      call NhlFRLSetString(srlist,'cnLineLabelPlacementMode',
     +     'computed',ierr)
      call NhlFRLSetString(srlist,'tmXBMode','EXPLICIT',ierr)
      call NhlFRLSetFloatArray(srlist,'tmXBValues',xbvalues1,7,ierr)
      call NhlFRLSetStringArray(srlist,'tmXBLabels',xblabels1,7,ierr)
      call NhlFRLSetString(srlist,'tmYLMode','EXPLICIT',ierr)
      call NhlFRLSetFloatArray(srlist,'tmYLValues',ylvalues,7,ierr)
      call NhlFRLSetStringArray(srlist,'tmYLLabels',yllabels,7,ierr)
      call NhlFRLSetString(srlist,'tmXTLabelsOn','False',ierr)
      call NhlFRLSetString(srlist,'tmYRLabelsOn','True',ierr)
      call NhlFRLSetFloat(srlist,'tmXBLabelFontHeightF',.010,ierr)
      call NhlFRLSetFloat(srlist,'tmYLLabelFontHeightF',.010,ierr)
      call NhlFRLSetFloat(srlist,'tmXBMajorOutwardLengthF',.006,ierr)
      call NhlFRLSetFloat(srlist,'tmXBMajorLengthF',.006,ierr)
      call NhlFRLSetFloat(srlist,'tmXTMajorLengthF',0.,ierr)
      call NhlFRLSetFloat(srlist,'tmXTMajorOutwardLengthF',0.,ierr)
      call NhlFRLSetFloat(srlist,'tmYLMajorOutwardLengthF',.006,ierr)
      call NhlFRLSetFloat(srlist,'tmYLMajorLengthF',.006,ierr)
      call NhlFRLSetString(srlist,'tmXBMinorOn','False',ierr)
      call NhlFRLSetString(srlist,'tmXTMinorOn','False',ierr)
      call NhlFRLSetString(srlist,'tmYLMinorOn','False',ierr)
      call NhlFRLSetString(srlist,'tmYRMinorOn','False',ierr)
      call NhlFCreate(cn,'cn',NhlFcontourPlotClass,x1,
     +     srlist,ierr)
C
C Create another ContourPlot object.
C
      cellsize = .8/360.
      call NhlFRLClear(srlist)
      call NhlFRLSetInteger(srlist,'cnScalarFieldData',jan,ierr)
      call NhlFRLSetFloat(srlist,'vpXF',.06,ierr)
      call NhlFRLSetFloat(srlist,'vpYF',.65,ierr)
      call NhlFRLSetFloat(srlist,'vpWidthF',.60,ierr)
      call NhlFRLSetFloat(srlist,'vpHeightF',.30,ierr)
      call NhlFRLSetString(srlist,'tmXBOn','False',ierr)
      call NhlFRLSetString(srlist,'tmYLOn','False',ierr)
      call NhlFRLSetString(srlist,'tmXBMinorOn','False',ierr)
      call NhlFRLSetString(srlist,'tmYLMinorOn','False',ierr)
      call NhlFRLSetString(srlist,'tmXBLabelsOn','False',ierr)
      call NhlFRLSetString(srlist,'tmYLLabelsOn','False',ierr)
      call NhlFRLSetFloat(srlist,'tmXBMajorLengthF',0.,ierr)
      call NhlFRLSetFloat(srlist,'tmYLMajorLengthF',0.,ierr)
      call NhlFRLSetString(srlist,'cnFillOn','True',ierr)
      call NhlFRLSetString(srlist,'cnFillMode','RasterFill',ierr)
      call NhlFRLSetFloat(srlist,'cnRasterCellSizeF',cellsize,ierr)
      call NhlFRLSetFloat(srlist,'cnMinLevelValF',-2.0,ierr)
      call NhlFRLSetIntegerArray(srlist,'cnFillColors',fillcolors,16,
     +     ierr)
      call NhlFRLSetString(srlist,'cnLineLabelsOn','False',ierr)
      call NhlFRLSetString(srlist,'cnLinesOn','False',ierr)
      call NhlFRLSetString(srlist,'cnMonoFillColor','False',ierr)
      call NhlFRLSetString(srlist,'cnInfoLabelOn','False',ierr)
      call NhlFRLSetString(srlist,'cnHighLabelsOn','False',ierr)
      call NhlFCreate(ice,'ice',NhlFcontourPlotClass,x1,
     +     srlist,ierr)
C
C Create a MapPlot object.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetFloat(srlist,'vpXF',.06,ierr)
      call NhlFRLSetFloat(srlist,'vpYF',.65,ierr)
      call NhlFRLSetFloat(srlist,'vpWidthF',.60,ierr)
      call NhlFRLSetFloat(srlist,'vpHeightF',.30,ierr)
      call NhlFRLSetString(srlist,'mpFillOn','True',ierr)
      call NhlFRLSetString(srlist,'mpLabelsOn','False',ierr)
      call NhlFRLSetString(srlist,'mpDefaultFillColor','DarkSalmon',
     +     ierr)
      call NhlFRLSetString(srlist,'mpLandFillColor','DarkSalmon',ierr)
      call NhlFRLSetString(srlist,'mpOutlineOn','False',ierr)
      call NhlFRLSetString(srlist,'mpAreaMaskingOn','True',ierr)
      call NhlFRLSetString(srlist,'mpMaskAreaSpecifiers','Oceans',ierr)
      call NhlFRLSetInteger(srlist,'mpInlandWaterFillColor',2,ierr)
      call NhlFRLSetString(srlist,'mpGridAndLimbOn','False',ierr)
      call NhlFRLSetString(srlist,'mpLimitMode','latlon',ierr)
      call NhlFRLSetFloat(srlist,'mpMinLonF',0.,ierr)
      call NhlFRLSetFloat(srlist,'mpMaxLonF',360.,ierr)
      call NhlFRLSetFloat(srlist,'mpCenterLonF',180.,ierr)
      call NhlFCreate(mp,'mp',nhlfmapplotclass,x1,srlist,
     +     ierr)
C
C Create a TextItem object.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetFloat(srlist,'txPosXF',0.5,ierr)
      call NhlFRLSetFloat(srlist,'txPosYF',0.8,ierr)
      call NhlFRLSetString(srlist,'txJust','CENTERCENTER',ierr)
      call NhlFRLSetString(srlist,'txString',
     +     'January Climatological Surface Temperature',ierr)
      call NhlFRLSetFloat(srlist,'txFontHeightF',.030,ierr)
      call NhlFRLSetInteger(srlist,'txFont',25,ierr)
      call NhlFCreate(tx,'tx',nhlftextitemclass,x1,srlist,ierr)
C
C  Read the ocean(1)/land(2) mask ascii dataset created by Areas/Ezmap.
C
      call gngpat(filename,'data',ierr)
      do 20 i=1,256
         if( filename(i:i).eq.char(0) ) then
            filename(i:i+20)='/asc/oceanland30e.asc'
            goto 25
         endif
 20   continue
 25   open(unit=10,file=filename,status='old',form='formatted')
      do nlt=1,NLAT
         ksst   = 0      ! knt the number of grid pts at ocean locations
         sstzon = 0.0    ! save and plt later as [lat vs zoneave]

         do nln=1,NLON    ! loop over all lon at a particular lat
            read(10,*)ocean1
            if (ocean1.eq.1) then
               ksst = ksst+1
               sstzon = sstzon + sstjan(nln,nlt)
            end if
         end do

         if (ksst.ne.0) then
            zoneave(nlt) = sstzon/ksst
         end if

      end do
C
C Create a coordarrays data object.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetFloatArray(srlist,'caYArray',lat,NLAT,ierr)
      call NhlFRLSetFloatArray(srlist,'caXArray',zoneave,NLAT,ierr)
      call NhlFRLSetFloat(srlist,'caXMissingV',1.e36,ierr)
      call NhlFCreate(zonal,'zonal',nhlfcoordarraysclass,appid,srlist,
     +     ierr)
C
C Create XyPlot object and assign data to it.
C
      call NhlFRLClear(srlist)
      call NhlFRLSetFloat(srlist,'vpXF', .73,ierr)
      call NhlFRLSetFloat(srlist,'vpYF', .65,ierr)
      call NhlFRLSetFloat(srlist,'vpWidthF', .25,ierr)
      call NhlFRLSetFloat(srlist,'vpHeightF',.30,ierr)
      call NhlFRLSetInteger(srlist,'xyCoordData', zonal,ierr)
      call NhlFRLSetFloat(srlist,'trYMaxF',90.,ierr)
      call NhlFRLSetFloat(srlist,'trYMinF',-90.,ierr)
      call NhlFRLSetFloat(srlist,'trXMaxF',30.,ierr)
      call NhlFRLSetFloat(srlist,'trXMinF',0.,ierr)
      call NhlFRLSetString(srlist,'tmXTLabelsOn','False',ierr)
      call NhlFRLSetString(srlist,'tmYRLabelsOn','False',ierr)
      call NhlFRLSetString(srlist,'tmYLLabelsOn','False',ierr)
      call NhlFRLSetFloat(srlist,'tmXBMajorLengthF',.006,ierr)
      call NhlFRLSetFloat(srlist,'tmXBMajorOutwardLengthF',.006,ierr)
      call NhlFRLSetFloat(srlist,'tmXBLabelFontHeightF', .010,ierr)
      call NhlFRLSetFloat(srlist,'tmYLMajorOutwardLengthF',.006,ierr)
      call NhlFRLSetFloat(srlist,'tmYLMajorLengthF',.006,ierr)
      call NhlFRLSetFloat(srlist,'tmXTMajorLengthF',0.,ierr)
      call NhlFRLSetFloat(srlist,'tmXTMajorOutwardLengthF',0.,ierr)
      call NhlFRLSetFloat(srlist,'tmYRMajorLengthF',0.,ierr)
      call NhlFRLSetFloat(srlist,'tmYRMajorOutwardLengthF',0.,ierr)
      call NhlFRLSetString(srlist,'tmXBMinorOn','False',ierr)
      call NhlFRLSetString(srlist,'tmYLMinorOn','False',ierr)
      call NhlFRLSetString(srlist,'tmXBMode','EXPLICIT',ierr)
      call NhlFRLSetFloatArray(srlist,'tmXBValues',xbvalues2,11,ierr)
      call NhlFRLSetStringArray(srlist,'tmXBLabels',xblabels2,11,ierr)
      call NhlFCreate(xy_plot,'xy_plot',nhlfxyplotclass,x1,srlist,
     +     ierr)
C
C Draw all objects to X11 window.
C
      call NhlFDraw(ice,ierr)
      call NhlFDraw(cn,ierr)
      call NhlFDraw(mp,ierr)
      call NhlFDraw(xy_plot,ierr)
      call NhlFDraw(tx,ierr)
      call NhlFFrame(x1,ierr)
C
C Reassign the workstation to save an ncgm.
C
      call NhlFChangeWorkstation (ice,ncgm1,ierr)
      call NhlFChangeWorkstation (cn,ncgm1,ierr)
      call NhlFChangeWorkstation (mp,ncgm1,ierr)
      call NhlFChangeWorkstation (xy_plot,ncgm1,ierr)
      call NhlFChangeWorkstation (tx,ncgm1,ierr)
C
C Draw all objects to the NCGM.
C
      call NhlFDraw(ice,ierr)
      call NhlFDraw(cn,ierr)
      call NhlFDraw(mp,ierr)
      call NhlFDraw(xy_plot,ierr)
      call NhlFDraw(tx,ierr)
      call NhlFFrame(ncgm1,ierr)
C
C Reassign the workstation to save PS.
C
      call NhlFChangeWorkstation (ice,ps1,ierr)
      call NhlFChangeWorkstation (cn,ps1,ierr)
      call NhlFChangeWorkstation (mp,ps1,ierr)
      call NhlFChangeWorkstation (xy_plot,ps1,ierr)
      call NhlFChangeWorkstation (tx,ps1,ierr)
C
C Draw all objects to PostScript.
C
      call NhlFDraw(ice,ierr)
      call NhlFDraw(cn,ierr)
      call NhlFDraw(mp,ierr)
      call NhlFDraw(xy_plot,ierr)
      call NhlFDraw(tx,ierr)
      call NhlFFrame(ps1,ierr)

C
C Reassign the workstation to save PDF.
C
      call NhlFChangeWorkstation (ice,pdf1,ierr)
      call NhlFChangeWorkstation (cn,pdf1,ierr)
      call NhlFChangeWorkstation (mp,pdf1,ierr)
      call NhlFChangeWorkstation (xy_plot,pdf1,ierr)
      call NhlFChangeWorkstation (tx,pdf1,ierr)
C
C Draw all objects to PDF.
C
      call NhlFDraw(ice,ierr)
      call NhlFDraw(cn,ierr)
      call NhlFDraw(mp,ierr)
      call NhlFDraw(xy_plot,ierr)
      call NhlFDraw(tx,ierr)
      call NhlFFrame(pdf1,ierr)

C
C Reassign the workstation to save cairo PS.
C
      call NhlFChangeWorkstation (ice,ps2,ierr)
      call NhlFChangeWorkstation (cn,ps2,ierr)
      call NhlFChangeWorkstation (mp,ps2,ierr)
      call NhlFChangeWorkstation (xy_plot,ps2,ierr)
      call NhlFChangeWorkstation (tx,ps2,ierr)
C
C Draw all objects to cairo PostScript.
C
      call NhlFDraw(ice,ierr)
      call NhlFDraw(cn,ierr)
      call NhlFDraw(mp,ierr)
      call NhlFDraw(xy_plot,ierr)
      call NhlFDraw(tx,ierr)
      call NhlFFrame(ps2,ierr)

C
C Reassign the workstation to save cairo PDF.
C
      call NhlFChangeWorkstation (ice,pdf2,ierr)
      call NhlFChangeWorkstation (cn,pdf2,ierr)
      call NhlFChangeWorkstation (mp,pdf2,ierr)
      call NhlFChangeWorkstation (xy_plot,pdf2,ierr)
      call NhlFChangeWorkstation (tx,pdf2,ierr)
C
C Draw all objects to cairo PDF.
C
      call NhlFDraw(ice,ierr)
      call NhlFDraw(cn,ierr)
      call NhlFDraw(mp,ierr)
      call NhlFDraw(xy_plot,ierr)
      call NhlFDraw(tx,ierr)
      call NhlFFrame(pdf2,ierr)

C
C Reassign the workstation to save cairo PNG.
C
      call NhlFChangeWorkstation (ice,png1,ierr)
      call NhlFChangeWorkstation (cn,png1,ierr)
      call NhlFChangeWorkstation (mp,png1,ierr)
      call NhlFChangeWorkstation (xy_plot,png1,ierr)
      call NhlFChangeWorkstation (tx,png1,ierr)
C
C Draw all objects to cairo PNG.
C
      call NhlFDraw(ice,ierr)
      call NhlFDraw(cn,ierr)
      call NhlFDraw(mp,ierr)
      call NhlFDraw(xy_plot,ierr)
      call NhlFDraw(tx,ierr)
      call NhlFFrame(png1,ierr)

C
C Cleanup
C
      call NhlFDestroy(ncgm1,ierr)
      call NhlFDestroy(x1,ierr)
      call NhlFDestroy(ps1,ierr)
      call NhlFDestroy(ps2,ierr)
      call NhlFDestroy(pdf1,ierr)
      call NhlFDestroy(pdf2,ierr)
      call NhlFDestroy(png1,ierr)
      call NhlFDestroy(appid,ierr)
      stop
      end