This is nco.info, produced by makeinfo version 7.1 from nco.texi.

INFO-DIR-SECTION netCDF
START-INFO-DIR-ENTRY
* NCO::        User Guide for the netCDF Operator suite
END-INFO-DIR-ENTRY

This file documents NCO, a collection of utilities to manipulate and
analyze netCDF files.

   Copyright © 1995-2024 Charlie Zender

   This is the first edition of the ‘NCO User Guide’,
and is consistent with version 2 of ‘texinfo.tex’.

   Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.  The
license is available online at <http://www.gnu.org/copyleft/fdl.html>

   The original author of this software, Charlie Zender, wants to
improve it with the help of your suggestions, improvements, bug-reports,
and patches.
Charlie Zender <surname at uci dot edu> (yes, my surname is zender)
3200 Croul Hall
Department of Earth System Science
University of California, Irvine
Irvine, CA 92697-3100


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Tag Table:
(Indirect)
Node: Top1118
Node: Foreword2818
Node: Summary7984
Node: Introduction8791
Node: Availability9079
Ref: Availability-Footnote-111260
Node: How to Use This guide11672
Node: Compatability13487
Ref: Compatability-Footnote-119033
Ref: Compatability-Footnote-219181
Node: Windows Operating System19387
Ref: Windows Operating System-Footnote-121989
Node: Symbolic Links22230
Node: Libraries24246
Ref: Libraries-Footnote-125405
Node: netCDF2/3/4 and HDF4/5 Support25589
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-136586
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-236877
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-337243
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-437365
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-538446
Node: Help Requests and Bug Reports38940
Node: Strategies43842
Node: Philosophy44240
Node: Climate Model Paradigm45778
Node: Temporary Output Files46417
Ref: Temporary Output Files-Footnote-151637
Ref: Temporary Output Files-Footnote-251755
Node: Appending Variables51864
Ref: Appending Variables-Footnote-153957
Ref: Appending Variables-Footnote-254142
Node: Simple Arithmetic and Interpolation54299
Node: Statistics vs Concatenation55054
Ref: Statistics vs Concatenation-Footnote-156269
Ref: Statistics vs Concatenation-Footnote-256546
Node: Concatenation56933
Node: Averaging60609
Node: Interpolating62094
Node: Large Numbers of Files62622
Ref: Large Numbers of Files-Footnote-168619
Node: Large Datasets68955
Node: Memory Requirements71884
Node: Single and Multi-file Operators73335
Ref: Single and Multi-file Operators-Footnote-179124
Node: Memory for ncap279290
Node: Performance80782
Node: Shared features82781
Node: Internationalization84406
Node: Metadata Optimization84990
Node: OpenMP Threading86951
Node: Command Line Options91012
Ref: Command Line Options-Footnote-193509
Node: Truncating Long Options93802
Node: Multi-arguments95498
Ref: Multi-arguments-Footnote-199897
Node: Sanitization of Input100194
Node: Specifying Input Files102865
Ref: Specifying Input Files-Footnote-1112300
Node: Specifying Output Files112645
Node: Remote storage114442
Ref: Remote storage-Footnote-1120091
Ref: Remote storage-Footnote-2120320
Ref: Remote storage-Footnote-3120674
Node: OPeNDAP121111
Ref: OPeNDAP-Footnote-1127526
Ref: OPeNDAP-Footnote-2128107
Ref: OPeNDAP-Footnote-3128577
Ref: OPeNDAP-Footnote-4128828
Ref: OPeNDAP-Footnote-5129220
Node: Retaining Retrieved Files129485
Node: File Formats and Conversion131749
Node: File Formats132948
Ref: File Formats-Footnote-1137230
Node: Determining File Format137422
Node: File Conversion140983
Ref: File Conversion-Footnote-1142759
Node: Autoconversion143002
Node: Zarr and NCZarr147449
Node: Large File Support151190
Ref: Large File Support-Footnote-1152733
Node: Subsetting Files152771
Ref: Subsetting Files-Footnote-1168360
Node: Subsetting Coordinate Variables168595
Node: Group Path Editing171807
Node: Flattening Groups173989
Node: Moving Groups179129
Ref: Moving Groups-Footnote-1181320
Node: Dismembering Files181509
Node: Checking CF-compliance189654
Ref: Checking CF-compliance-Footnote-1197034
Node: C and Fortran Index Conventions197190
Node: Hyperslabs198997
Node: Stride205778
Node: Record Appending209119
Node: Subcycle212921
Ref: Subcycle-Footnote-1216902
Node: Interleave217012
Node: Multislabs222454
Node: Wrapped Coordinates230406
Node: Auxiliary Coordinates233344
Node: Grid Generation240604
Ref: Grid Generation-Footnote-1267990
Ref: Grid Generation-Footnote-2268452
Node: Regridding269041
Node: Climatology and Bounds Support299861
Node: UDUnits Support305306
Node: Rebasing Time Coordinate314849
Node: Multiple Record Dimensions317906
Node: Missing Values320231
Ref: Missing Values-Footnote-1326167
Ref: Missing Values-Footnote-2326412
Node: Chunking326521
Ref: Chunking-Footnote-1345153
Node: Compression345403
Ref: fgr:qnt_cr_dfl357855
Ref: fgr:qnt_cr_bz2366456
Ref: fgr:qnt_cr_zst368927
Ref: Compression-Footnote-1369965
Ref: Compression-Footnote-2370089
Ref: Compression-Footnote-3370177
Ref: Compression-Footnote-4370273
Ref: Compression-Footnote-5370836
Ref: Compression-Footnote-6371053
Node: Linear Packing371244
Node: Precision-Preserving Compression372793
Ref: Precision-Preserving Compression-Footnote-1400635
Ref: Precision-Preserving Compression-Footnote-2401005
Ref: Precision-Preserving Compression-Footnote-3401427
Ref: Precision-Preserving Compression-Footnote-4402546
Ref: Precision-Preserving Compression-Footnote-5403914
Node: Deflation404112
Node: MD5 digests406357
Node: Buffer sizes410334
Ref: Buffer sizes-Footnote-1411632
Node: RAM disks411756
Node: Unbuffered I/O416769
Node: Packed data418068
Ref: Packed data-Footnote-1425842
Node: Operation Types426019
Node: Type Conversion433739
Node: Automatic type conversion435005
Ref: Automatic type conversion-Footnote-1441815
Ref: Automatic type conversion-Footnote-2441838
Ref: Automatic type conversion-Footnote-3442031
Node: Promoting Single-precision to Double442235
Ref: Promoting Single-precision to Double-Footnote-1461148
Ref: Promoting Single-precision to Double-Footnote-2461613
Ref: Promoting Single-precision to Double-Footnote-3462106
Ref: Promoting Single-precision to Double-Footnote-4462406
Ref: Promoting Single-precision to Double-Footnote-5462511
Node: Manual type conversion462575
Node: Batch Mode463560
Node: Global Attribute Addition464721
Node: History Attribute467240
Ref: History Attribute-Footnote-1470870
Node: File List Attributes471119
Node: CF Conventions472923
Node: ARM Conventions489070
Node: Operator Version491185
Node: Reference Manual492343
Node: ncap2 netCDF Arithmetic Processor493477
Node: Syntax of ncap2 statements499212
Node: Expressions500584
Node: Dimensions507944
Node: Left hand casting510193
Node: Arrays and hyperslabs514995
Node: Attributes521423
Node: Value List525183
Node: Number literals526438
Node: if statement530391
Node: Print & String methods532615
Node: Missing values ncap2536741
Node: Methods and functions541827
Node: RAM variables549119
Node: Where statement550400
Node: Loops555724
Node: Include files557072
Node: Sort methods558296
Node: UDUnits script569653
Node: Vpointer573373
Node: Irregular grids577839
Node: Bilinear interpolation583368
Node: GSL special functions587618
Ref: GSL special functions-Footnote-1609968
Node: GSL interpolation611288
Node: GSL least-squares fitting613368
Node: GSL statistics617424
Node: GSL random number generation621197
Node: Examples ncap2625703
Node: Intrinsic mathematical methods633271
Ref: Intrinsic mathematical methods-Footnote-1638624
Ref: Intrinsic mathematical methods-Footnote-2639483
Node: Operator precedence and associativity639556
Node: ID Quoting642108
Node: make_bounds() function644649
Node: solar_zenith_angle function645893
Node: ncatted netCDF Attribute Editor647255
Ref: ncatted netCDF Attribute Editor-Footnote-1667824
Node: ncbo netCDF Binary Operator668905
Ref: ncbo netCDF Binary Operator-Footnote-1682671
Ref: ncbo netCDF Binary Operator-Footnote-2682860
Ref: ncbo netCDF Binary Operator-Footnote-3683220
Ref: ncbo netCDF Binary Operator-Footnote-4683280
Ref: ncbo netCDF Binary Operator-Footnote-5683352
Ref: ncbo netCDF Binary Operator-Footnote-6683558
Node: ncchecker netCDF Compliance Checker683915
Node: ncclimo netCDF Climatology Generator685979
Ref: ncclimo netCDF Climatology Generator-Footnote-1765098
Ref: ncclimo netCDF Climatology Generator-Footnote-2765509
Ref: ncclimo netCDF Climatology Generator-Footnote-3765776
Node: ncecat netCDF Ensemble Concatenator766086
Node: nces netCDF Ensemble Statistics775700
Ref: nces netCDF Ensemble Statistics-Footnote-1785826
Ref: nces netCDF Ensemble Statistics-Footnote-2786104
Node: ncflint netCDF File Interpolator786627
Node: ncks netCDF Kitchen Sink795457
Ref: ncks netCDF Kitchen Sink-Footnote-1867749
Ref: ncks netCDF Kitchen Sink-Footnote-2868067
Ref: ncks netCDF Kitchen Sink-Footnote-3868438
Node: Filters for ncks868553
Node: ncpdq netCDF Permute Dimensions Quickly883831
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-1905840
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-2905945
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-3906526
Node: ncra netCDF Record Averager907916
Node: ncrcat netCDF Record Concatenator917856
Node: ncremap netCDF Remapper922453
Ref: ncremap netCDF Remapper-Footnote-11069445
Ref: ncremap netCDF Remapper-Footnote-21069856
Ref: ncremap netCDF Remapper-Footnote-31069939
Ref: ncremap netCDF Remapper-Footnote-41070081
Ref: ncremap netCDF Remapper-Footnote-51070407
Ref: ncremap netCDF Remapper-Footnote-61070874
Ref: ncremap netCDF Remapper-Footnote-71071160
Node: ncrename netCDF Renamer1071234
Node: ncwa netCDF Weighted Averager1087878
Ref: ncwa netCDF Weighted Averager-Footnote-11093296
Ref: ncwa netCDF Weighted Averager-Footnote-21093437
Node: Mask condition1093643
Ref: Mask condition-Footnote-11095118
Node: Normalization and Integration1095318
Ref: Normalization and Integration-Footnote-11101123
Ref: Normalization and Integration-Footnote-21101197
Ref: Normalization and Integration-Footnote-31101321
Node: Contributing1101490
Ref: Contributing-Footnote-11102225
Node: Contributors1102639
Node: Citation1107002
Node: Proposals for Institutional Funding1108418
Node: Quick Start1109593
Node: Daily data in one file1110070
Node: Monthly data in one file1111492
Node: One time point one file1113154
Node: Multiple files with multiple time points1114111
Node: CMIP5 Example1114603
Node: Combine Files1117339
Node: Global Distribution of Long-term Average1126793
Ref: fgr:glb1127029
Node: Annual Average over Regions1131805
Ref: fgr:anl1132015
Node: Monthly Cycle1144913
Ref: fgr:mon1145072
Node: Regrid MODIS Data1152137
Node: Add Coordinates to MODIS Data1159697
Node: Permute MODIS Coordinates1161699
Node: Parallel1163636
Node: CCSM Example1163988
Node: mybibnode1176673
Ref: ZeM071176798
Ref: Zen081177029
Ref: WZJ071177237
Ref: ZMW061177623
Ref: ZeW071177863
Ref: WZJ061178278
Ref: WZJ0731178468
Ref: WZJ0741178916
Ref: WZJ0811179118
Ref: WZJ0911179398
Ref: PFT881179616
Node: General Index1179743

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