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: Foreword2817
Node: Summary7983
Node: Introduction8790
Node: Availability9078
Ref: Availability-Footnote-111259
Node: How to Use This guide11671
Node: Compatability13486
Ref: Compatability-Footnote-119032
Ref: Compatability-Footnote-219180
Node: Windows Operating System19386
Ref: Windows Operating System-Footnote-121988
Node: Symbolic Links22229
Node: Libraries24245
Ref: Libraries-Footnote-125404
Node: netCDF2/3/4 and HDF4/5 Support25588
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-136585
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-236876
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-337242
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-437364
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-538445
Node: Help Requests and Bug Reports38939
Node: Strategies43841
Node: Philosophy44239
Node: Climate Model Paradigm45777
Node: Temporary Output Files46416
Ref: Temporary Output Files-Footnote-151636
Ref: Temporary Output Files-Footnote-251754
Node: Appending Variables51863
Ref: Appending Variables-Footnote-153956
Ref: Appending Variables-Footnote-254141
Node: Simple Arithmetic and Interpolation54298
Node: Statistics vs Concatenation55053
Ref: Statistics vs Concatenation-Footnote-156268
Ref: Statistics vs Concatenation-Footnote-256545
Node: Concatenation56932
Node: Averaging60608
Node: Interpolating62093
Node: Large Numbers of Files62621
Ref: Large Numbers of Files-Footnote-168618
Node: Large Datasets68954
Node: Memory Requirements71883
Node: Single and Multi-file Operators73334
Ref: Single and Multi-file Operators-Footnote-179123
Node: Memory for ncap279289
Node: Performance80781
Node: Shared features82780
Node: Internationalization84405
Node: Metadata Optimization84989
Node: OpenMP Threading86950
Node: Command Line Options91011
Ref: Command Line Options-Footnote-193508
Node: Truncating Long Options93801
Node: Multi-arguments95497
Ref: Multi-arguments-Footnote-199896
Node: Sanitization of Input100193
Node: Specifying Input Files102864
Ref: Specifying Input Files-Footnote-1112299
Node: Specifying Output Files112644
Node: Remote storage114441
Ref: Remote storage-Footnote-1120090
Ref: Remote storage-Footnote-2120319
Ref: Remote storage-Footnote-3120673
Node: OPeNDAP121110
Ref: OPeNDAP-Footnote-1127525
Ref: OPeNDAP-Footnote-2128106
Ref: OPeNDAP-Footnote-3128576
Ref: OPeNDAP-Footnote-4128827
Ref: OPeNDAP-Footnote-5129219
Node: Retaining Retrieved Files129484
Node: File Formats and Conversion131748
Node: File Formats132947
Ref: File Formats-Footnote-1137229
Node: Determining File Format137421
Node: File Conversion140982
Ref: File Conversion-Footnote-1142758
Node: Autoconversion143001
Node: Zarr and NCZarr147448
Node: Large File Support151189
Ref: Large File Support-Footnote-1152732
Node: Subsetting Files152770
Ref: Subsetting Files-Footnote-1168359
Node: Subsetting Coordinate Variables168594
Node: Group Path Editing171806
Node: Flattening Groups173988
Node: Moving Groups179128
Ref: Moving Groups-Footnote-1181319
Node: Dismembering Files181508
Node: Checking CF-compliance189653
Ref: Checking CF-compliance-Footnote-1197033
Node: C and Fortran Index Conventions197189
Node: Hyperslabs198996
Node: Stride205777
Node: Record Appending209118
Node: Subcycle212920
Ref: Subcycle-Footnote-1216901
Node: Interleave217011
Node: Multislabs222453
Node: Wrapped Coordinates230405
Node: Auxiliary Coordinates233343
Node: Grid Generation240603
Ref: Grid Generation-Footnote-1267989
Ref: Grid Generation-Footnote-2268451
Node: Regridding269040
Node: Climatology and Bounds Support299860
Node: UDUnits Support305305
Node: Rebasing Time Coordinate314848
Node: Multiple Record Dimensions317905
Node: Missing Values320230
Ref: Missing Values-Footnote-1326166
Ref: Missing Values-Footnote-2326411
Node: Chunking326520
Ref: Chunking-Footnote-1345152
Node: Compression345402
Ref: fgr:qnt_cr_dfl357820
Ref: fgr:qnt_cr_bz2366421
Ref: fgr:qnt_cr_zst368892
Ref: Compression-Footnote-1369930
Ref: Compression-Footnote-2370054
Ref: Compression-Footnote-3370142
Ref: Compression-Footnote-4370238
Ref: Compression-Footnote-5370801
Ref: Compression-Footnote-6371018
Node: Linear Packing371209
Node: Precision-Preserving Compression372758
Ref: Precision-Preserving Compression-Footnote-1400574
Ref: Precision-Preserving Compression-Footnote-2400944
Ref: Precision-Preserving Compression-Footnote-3401366
Ref: Precision-Preserving Compression-Footnote-4402485
Ref: Precision-Preserving Compression-Footnote-5403853
Node: Deflation404051
Node: MD5 digests406296
Node: Buffer sizes410273
Ref: Buffer sizes-Footnote-1411571
Node: RAM disks411695
Node: Unbuffered I/O416708
Node: Packed data418007
Ref: Packed data-Footnote-1425781
Node: Operation Types425958
Node: Type Conversion433678
Node: Automatic type conversion434944
Ref: Automatic type conversion-Footnote-1441754
Ref: Automatic type conversion-Footnote-2441777
Ref: Automatic type conversion-Footnote-3441970
Node: Promoting Single-precision to Double442174
Ref: Promoting Single-precision to Double-Footnote-1461087
Ref: Promoting Single-precision to Double-Footnote-2461552
Ref: Promoting Single-precision to Double-Footnote-3462045
Ref: Promoting Single-precision to Double-Footnote-4462345
Ref: Promoting Single-precision to Double-Footnote-5462450
Node: Manual type conversion462514
Node: Batch Mode463499
Node: Global Attribute Addition464660
Node: History Attribute467179
Ref: History Attribute-Footnote-1470809
Node: File List Attributes471058
Node: CF Conventions472862
Node: ARM Conventions489009
Node: Operator Version491124
Node: Reference Manual492282
Node: ncap2 netCDF Arithmetic Processor493416
Node: Syntax of ncap2 statements499151
Node: Expressions500523
Node: Dimensions507883
Node: Left hand casting510132
Node: Arrays and hyperslabs514934
Node: Attributes521362
Node: Value List525122
Node: Number literals526377
Node: if statement530330
Node: Print & String methods532554
Node: Missing values ncap2536680
Node: Methods and functions541766
Node: RAM variables549058
Node: Where statement550339
Node: Loops555663
Node: Include files557011
Node: Sort methods558235
Node: UDUnits script569592
Node: Vpointer573312
Node: Irregular grids577778
Node: Bilinear interpolation583307
Node: GSL special functions587557
Ref: GSL special functions-Footnote-1609907
Node: GSL interpolation611227
Node: GSL least-squares fitting613307
Node: GSL statistics617363
Node: GSL random number generation621136
Node: Examples ncap2625642
Node: Intrinsic mathematical methods633210
Ref: Intrinsic mathematical methods-Footnote-1638563
Ref: Intrinsic mathematical methods-Footnote-2639422
Node: Operator precedence and associativity639495
Node: ID Quoting642047
Node: make_bounds() function644588
Node: solar_zenith_angle function645832
Node: ncatted netCDF Attribute Editor647194
Ref: ncatted netCDF Attribute Editor-Footnote-1667763
Node: ncbo netCDF Binary Operator668844
Ref: ncbo netCDF Binary Operator-Footnote-1682610
Ref: ncbo netCDF Binary Operator-Footnote-2682799
Ref: ncbo netCDF Binary Operator-Footnote-3683159
Ref: ncbo netCDF Binary Operator-Footnote-4683219
Ref: ncbo netCDF Binary Operator-Footnote-5683291
Ref: ncbo netCDF Binary Operator-Footnote-6683497
Node: ncchecker netCDF Compliance Checker683854
Node: ncclimo netCDF Climatology Generator685918
Ref: ncclimo netCDF Climatology Generator-Footnote-1765030
Ref: ncclimo netCDF Climatology Generator-Footnote-2765441
Ref: ncclimo netCDF Climatology Generator-Footnote-3765708
Node: ncecat netCDF Ensemble Concatenator766018
Node: nces netCDF Ensemble Statistics775632
Ref: nces netCDF Ensemble Statistics-Footnote-1785758
Ref: nces netCDF Ensemble Statistics-Footnote-2786036
Node: ncflint netCDF File Interpolator786559
Node: ncks netCDF Kitchen Sink795389
Ref: ncks netCDF Kitchen Sink-Footnote-1867681
Ref: ncks netCDF Kitchen Sink-Footnote-2867999
Ref: ncks netCDF Kitchen Sink-Footnote-3868370
Node: Filters for ncks868485
Node: ncpdq netCDF Permute Dimensions Quickly883763
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-1905772
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-2905877
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-3906458
Node: ncra netCDF Record Averager907848
Node: ncrcat netCDF Record Concatenator917788
Node: ncremap netCDF Remapper922385
Ref: ncremap netCDF Remapper-Footnote-11069377
Ref: ncremap netCDF Remapper-Footnote-21069788
Ref: ncremap netCDF Remapper-Footnote-31069871
Ref: ncremap netCDF Remapper-Footnote-41070013
Ref: ncremap netCDF Remapper-Footnote-51070339
Ref: ncremap netCDF Remapper-Footnote-61070806
Ref: ncremap netCDF Remapper-Footnote-71071092
Node: ncrename netCDF Renamer1071166
Node: ncwa netCDF Weighted Averager1087810
Ref: ncwa netCDF Weighted Averager-Footnote-11093228
Ref: ncwa netCDF Weighted Averager-Footnote-21093369
Node: Mask condition1093575
Ref: Mask condition-Footnote-11095050
Node: Normalization and Integration1095250
Ref: Normalization and Integration-Footnote-11101055
Ref: Normalization and Integration-Footnote-21101129
Ref: Normalization and Integration-Footnote-31101253
Node: Contributing1101422
Ref: Contributing-Footnote-11102157
Node: Contributors1102571
Node: Citation1106934
Node: Proposals for Institutional Funding1108350
Node: Quick Start1109525
Node: Daily data in one file1110002
Node: Monthly data in one file1111424
Node: One time point one file1113086
Node: Multiple files with multiple time points1114043
Node: CMIP5 Example1114535
Node: Combine Files1117271
Node: Global Distribution of Long-term Average1126725
Ref: fgr:glb1126961
Node: Annual Average over Regions1131737
Ref: fgr:anl1131947
Node: Monthly Cycle1144845
Ref: fgr:mon1145004
Node: Regrid MODIS Data1152069
Node: Add Coordinates to MODIS Data1159629
Node: Permute MODIS Coordinates1161631
Node: Parallel1163568
Node: CCSM Example1163920
Node: mybibnode1176605
Ref: ZeM071176730
Ref: Zen081176961
Ref: WZJ071177169
Ref: ZMW061177555
Ref: ZeW071177795
Ref: WZJ061178210
Ref: WZJ0731178400
Ref: WZJ0741178848
Ref: WZJ0811179050
Ref: WZJ0911179330
Ref: PFT881179548
Node: General Index1179675

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