This is nco.info, produced by makeinfo version 7.3 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 © 1995-2026 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


Indirect:
nco.info-1: 1118
nco.info-2: 305582
nco.info-3: 621057
nco.info-4: 909810
nco.info-5: 1213780

Tag Table:
(Indirect)
Node: Top1118
Node: Foreword2818
Node: Summary9061
Node: Introduction9868
Node: Availability10156
Ref: Availability-Footnote-112337
Node: How to Use This guide12749
Node: Compatability14564
Ref: Compatability-Footnote-120110
Ref: Compatability-Footnote-220258
Node: Windows Operating System20464
Ref: Windows Operating System-Footnote-123066
Node: Symbolic Links23307
Node: Libraries25323
Ref: Libraries-Footnote-126482
Node: netCDF2/3/4 and HDF4/5 Support26666
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-137663
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-237954
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-338320
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-438442
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-539523
Node: Help Requests and Bug Reports40017
Node: Strategies45226
Node: Philosophy45624
Node: Climate Model Paradigm47162
Node: Temporary Output Files47801
Ref: Temporary Output Files-Footnote-153021
Ref: Temporary Output Files-Footnote-253139
Node: Appending Variables53248
Ref: Appending Variables-Footnote-155341
Ref: Appending Variables-Footnote-255526
Node: Simple Arithmetic and Interpolation55683
Node: Statistics vs Concatenation56438
Ref: Statistics vs Concatenation-Footnote-157653
Ref: Statistics vs Concatenation-Footnote-257930
Node: Concatenation58317
Node: Averaging61993
Node: Interpolating63478
Node: Large Numbers of Files64006
Ref: Large Numbers of Files-Footnote-170003
Node: Large Datasets70339
Node: Memory Requirements73268
Node: Single and Multi-file Operators74719
Ref: Single and Multi-file Operators-Footnote-180508
Node: Memory for ncap280674
Node: Performance82166
Node: Shared features84165
Node: Internationalization85848
Node: Metadata Optimization86432
Node: OpenMP Threading88393
Node: Command Line Options92454
Ref: Command Line Options-Footnote-194951
Node: Truncating Long Options95244
Node: Multi-arguments96940
Ref: Multi-arguments-Footnote-1101525
Node: Sanitization of Input101822
Node: Specifying Input Files104493
Ref: Specifying Input Files-Footnote-1113928
Node: Specifying Output Files114273
Node: Remote storage116070
Ref: Remote storage-Footnote-1121719
Ref: Remote storage-Footnote-2121948
Ref: Remote storage-Footnote-3122302
Node: OPeNDAP122739
Ref: OPeNDAP-Footnote-1129154
Ref: OPeNDAP-Footnote-2129735
Ref: OPeNDAP-Footnote-3130205
Ref: OPeNDAP-Footnote-4130456
Ref: OPeNDAP-Footnote-5130848
Node: Retaining Retrieved Files131113
Node: File Formats and Conversion133377
Node: File Formats134576
Ref: File Formats-Footnote-1138858
Node: Determining File Format139050
Node: File Conversion142611
Ref: File Conversion-Footnote-1144387
Node: Autoconversion144630
Node: Zarr and NCZarr150575
Node: Large File Support154316
Ref: Large File Support-Footnote-1155859
Node: Subsetting Files155897
Ref: Subsetting Files-Footnote-1171503
Node: Subsetting Coordinate Variables171738
Node: Group Path Editing174950
Node: Flattening Groups177132
Node: Moving Groups182272
Ref: Moving Groups-Footnote-1184463
Node: Dismembering Files184652
Node: Checking CF-compliance192797
Ref: Checking CF-compliance-Footnote-1200177
Node: C and Fortran Index Conventions200333
Node: Hyperslabs202140
Node: Stride208921
Node: Record Appending212262
Node: Subcycle216064
Ref: Subcycle-Footnote-1220976
Node: Interleave221086
Node: Multislabs226528
Node: Wrapped Coordinates234480
Node: Auxiliary Coordinates237418
Node: Grid Generation244678
Ref: Grid Generation-Footnote-1272594
Ref: Grid Generation-Footnote-2273056
Node: Regridding273645
Node: Climatology and Bounds Support305582
Node: UDUnits Support309909
Node: Rebasing Time Coordinate319452
Node: Multiple Record Dimensions322509
Node: Missing Values324834
Ref: Missing Values-Footnote-1330770
Ref: Missing Values-Footnote-2331015
Node: Chunking331124
Ref: Chunking-Footnote-1350241
Node: Quantization Algorithms350491
Node: Compression353365
Ref: fgr:qnt_cr_dfl365919
Ref: fgr:qnt_cr_bz2374539
Ref: fgr:qnt_cr_zst377137
Ref: Compression-Footnote-1378174
Ref: Compression-Footnote-2378298
Ref: Compression-Footnote-3378386
Ref: Compression-Footnote-4378482
Ref: Compression-Footnote-5379045
Ref: Compression-Footnote-6379262
Node: Linear Packing379453
Node: Precision-Preserving Compression381002
Ref: Precision-Preserving Compression-Footnote-1408105
Ref: Precision-Preserving Compression-Footnote-2408475
Ref: Precision-Preserving Compression-Footnote-3408897
Ref: Precision-Preserving Compression-Footnote-4410016
Ref: Precision-Preserving Compression-Footnote-5411384
Node: Deflation411582
Node: MD5 digests413827
Node: Buffer sizes417804
Ref: Buffer sizes-Footnote-1419102
Node: RAM disks419226
Node: Unbuffered I/O424239
Node: Packed data425538
Ref: Packed data-Footnote-1433374
Ref: Packed data-Footnote-2433551
Node: Operation Types433778
Node: Type Conversion441498
Node: Automatic type conversion442764
Ref: Automatic type conversion-Footnote-1449574
Ref: Automatic type conversion-Footnote-2449597
Ref: Automatic type conversion-Footnote-3449790
Node: Promoting Single-precision to Double449994
Ref: Promoting Single-precision to Double-Footnote-1468907
Ref: Promoting Single-precision to Double-Footnote-2469372
Ref: Promoting Single-precision to Double-Footnote-3469865
Ref: Promoting Single-precision to Double-Footnote-4470165
Ref: Promoting Single-precision to Double-Footnote-5470270
Node: Manual type conversion470334
Node: Batch Mode471319
Node: Global Attribute Addition472480
Node: Global Attribute Deletion474973
Node: History Attribute476310
Ref: History Attribute-Footnote-1480451
Node: File List Attributes480700
Node: CF Conventions482504
Node: ARM Conventions498655
Node: Operator Version500770
Node: Reference Manual501928
Node: ncap2 netCDF Arithmetic Processor503062
Node: Syntax of ncap2 statements508820
Node: Expressions510192
Node: Dimensions517552
Node: Left hand casting519801
Node: Arrays and hyperslabs524646
Node: Attributes531074
Node: Value List534817
Node: Number literals536072
Node: if statement540025
Node: Print & String methods542249
Node: Missing values ncap2546504
Node: Methods and functions551590
Node: RAM variables558888
Node: Where statement560168
Node: Loops565491
Node: Include files566826
Node: Sort methods568050
Node: UDUnits script579407
Node: Vpointer583127
Node: Irregular grids587609
Node: Bilinear interpolation593138
Node: GSL special functions597388
Ref: GSL special functions-Footnote-1619737
Node: GSL interpolation621057
Node: GSL least-squares fitting623137
Node: GSL statistics627192
Node: GSL random number generation630965
Node: Examples ncap2635470
Node: Intrinsic mathematical methods643041
Ref: Intrinsic mathematical methods-Footnote-1648394
Ref: Intrinsic mathematical methods-Footnote-2649253
Node: Operator precedence and associativity649326
Node: ID Quoting651878
Node: make_bounds() function654419
Node: solar_zenith_angle function655663
Node: ncatted netCDF Attribute Editor657025
Ref: ncatted netCDF Attribute Editor-Footnote-1677730
Node: ncbo netCDF Binary Operator678811
Ref: ncbo netCDF Binary Operator-Footnote-1692636
Ref: ncbo netCDF Binary Operator-Footnote-2692825
Ref: ncbo netCDF Binary Operator-Footnote-3693185
Ref: ncbo netCDF Binary Operator-Footnote-4693245
Ref: ncbo netCDF Binary Operator-Footnote-5693317
Ref: ncbo netCDF Binary Operator-Footnote-6693523
Node: ncchecker netCDF Compliance Checker693880
Node: ncclimo netCDF Climatology Generator695944
Ref: ncclimo netCDF Climatology Generator-Footnote-1782886
Ref: ncclimo netCDF Climatology Generator-Footnote-2783297
Ref: ncclimo netCDF Climatology Generator-Footnote-3783564
Node: ncecat netCDF Ensemble Concatenator783874
Node: nces netCDF Ensemble Statistics793530
Ref: nces netCDF Ensemble Statistics-Footnote-1803698
Ref: nces netCDF Ensemble Statistics-Footnote-2803976
Node: ncflint netCDF File Interpolator804499
Node: ncks netCDF Kitchen Sink813371
Ref: ncks netCDF Kitchen Sink-Footnote-1892461
Ref: ncks netCDF Kitchen Sink-Footnote-2892779
Ref: ncks netCDF Kitchen Sink-Footnote-3893150
Node: Filters for ncks893265
Node: ncpdq netCDF Permute Dimensions Quickly909810
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-1931861
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-2931966
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-3932547
Node: ncra netCDF Record Averager932819
Node: ncrcat netCDF Record Concatenator944028
Node: ncremap netCDF Remapper948667
Ref: ncremap netCDF Remapper-Footnote-11102200
Ref: ncremap netCDF Remapper-Footnote-21102611
Ref: ncremap netCDF Remapper-Footnote-31102694
Ref: ncremap netCDF Remapper-Footnote-41102836
Ref: ncremap netCDF Remapper-Footnote-51103116
Ref: ncremap netCDF Remapper-Footnote-61103583
Ref: ncremap netCDF Remapper-Footnote-71103869
Node: ncrename netCDF Renamer1103943
Node: ncwa netCDF Weighted Averager1123683
Ref: ncwa netCDF Weighted Averager-Footnote-11129143
Ref: ncwa netCDF Weighted Averager-Footnote-21129284
Node: Mask condition1129490
Ref: Mask condition-Footnote-11130965
Node: Normalization and Integration1131165
Ref: Normalization and Integration-Footnote-11136970
Ref: Normalization and Integration-Footnote-21137044
Ref: Normalization and Integration-Footnote-31137168
Node: Contributing1137337
Ref: Contributing-Footnote-11138072
Node: Contributors1138486
Node: Citation1143036
Node: Proposals for Institutional Funding1144402
Node: Quick Start1145577
Node: Daily data in one file1146054
Node: Monthly data in one file1147476
Node: One time point one file1149146
Node: Multiple files with multiple time points1150103
Node: CMIP5 Example1150595
Node: Combine Files1153331
Node: Global Distribution of Long-term Average1162785
Ref: fgr:glb1163021
Node: Annual Average over Regions1167796
Ref: fgr:anl1168006
Node: Monthly Cycle1180903
Ref: fgr:mon1181062
Node: Regrid MODIS Data1188126
Node: Add Coordinates to MODIS Data1195686
Node: Permute MODIS Coordinates1197688
Node: Parallel1199625
Node: CCSM Example1199977
Node: mybibnode1213780
Ref: ZeM071213905
Ref: Zen081214136
Ref: WZJ071214344
Ref: ZMW061214730
Ref: ZeW071214970
Ref: WZJ061215385
Ref: WZJ0731215575
Ref: WZJ0741216023
Ref: WZJ0811216225
Ref: WZJ0911216505
Ref: PFT881216723
Node: General Index1216850

End Tag Table


Local Variables:
coding: utf-8
End:
