This is nco.info, produced by makeinfo version 7.2 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 © 1995-2025 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: 303527
nco.info-3: 616583
nco.info-4: 902366
nco.info-5: 1205326

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: Strategies44149
Node: Philosophy44547
Node: Climate Model Paradigm46085
Node: Temporary Output Files46724
Ref: Temporary Output Files-Footnote-151944
Ref: Temporary Output Files-Footnote-252062
Node: Appending Variables52171
Ref: Appending Variables-Footnote-154264
Ref: Appending Variables-Footnote-254449
Node: Simple Arithmetic and Interpolation54606
Node: Statistics vs Concatenation55361
Ref: Statistics vs Concatenation-Footnote-156576
Ref: Statistics vs Concatenation-Footnote-256853
Node: Concatenation57240
Node: Averaging60916
Node: Interpolating62401
Node: Large Numbers of Files62929
Ref: Large Numbers of Files-Footnote-168926
Node: Large Datasets69262
Node: Memory Requirements72191
Node: Single and Multi-file Operators73642
Ref: Single and Multi-file Operators-Footnote-179431
Node: Memory for ncap279597
Node: Performance81089
Node: Shared features83088
Node: Internationalization84741
Node: Metadata Optimization85325
Node: OpenMP Threading87286
Node: Command Line Options91347
Ref: Command Line Options-Footnote-193844
Node: Truncating Long Options94137
Node: Multi-arguments95833
Ref: Multi-arguments-Footnote-1100418
Node: Sanitization of Input100715
Node: Specifying Input Files103386
Ref: Specifying Input Files-Footnote-1112821
Node: Specifying Output Files113166
Node: Remote storage114963
Ref: Remote storage-Footnote-1120612
Ref: Remote storage-Footnote-2120841
Ref: Remote storage-Footnote-3121195
Node: OPeNDAP121632
Ref: OPeNDAP-Footnote-1128047
Ref: OPeNDAP-Footnote-2128628
Ref: OPeNDAP-Footnote-3129098
Ref: OPeNDAP-Footnote-4129349
Ref: OPeNDAP-Footnote-5129741
Node: Retaining Retrieved Files130006
Node: File Formats and Conversion132270
Node: File Formats133469
Ref: File Formats-Footnote-1137751
Node: Determining File Format137943
Node: File Conversion141504
Ref: File Conversion-Footnote-1143280
Node: Autoconversion143523
Node: Zarr and NCZarr149468
Node: Large File Support153209
Ref: Large File Support-Footnote-1154752
Node: Subsetting Files154790
Ref: Subsetting Files-Footnote-1170379
Node: Subsetting Coordinate Variables170614
Node: Group Path Editing173826
Node: Flattening Groups176008
Node: Moving Groups181148
Ref: Moving Groups-Footnote-1183339
Node: Dismembering Files183528
Node: Checking CF-compliance191673
Ref: Checking CF-compliance-Footnote-1199053
Node: C and Fortran Index Conventions199209
Node: Hyperslabs201016
Node: Stride207797
Node: Record Appending211138
Node: Subcycle214940
Ref: Subcycle-Footnote-1218921
Node: Interleave219031
Node: Multislabs224473
Node: Wrapped Coordinates232425
Node: Auxiliary Coordinates235363
Node: Grid Generation242623
Ref: Grid Generation-Footnote-1270539
Ref: Grid Generation-Footnote-2271001
Node: Regridding271590
Node: Climatology and Bounds Support303527
Node: UDUnits Support307854
Node: Rebasing Time Coordinate317397
Node: Multiple Record Dimensions320454
Node: Missing Values322779
Ref: Missing Values-Footnote-1328715
Ref: Missing Values-Footnote-2328960
Node: Chunking329069
Ref: Chunking-Footnote-1347713
Node: Quantization Algorithms347963
Node: Compression350837
Ref: fgr:qnt_cr_dfl363391
Ref: fgr:qnt_cr_bz2371991
Ref: fgr:qnt_cr_zst374589
Ref: Compression-Footnote-1375626
Ref: Compression-Footnote-2375750
Ref: Compression-Footnote-3375838
Ref: Compression-Footnote-4375934
Ref: Compression-Footnote-5376497
Ref: Compression-Footnote-6376714
Node: Linear Packing376905
Node: Precision-Preserving Compression378454
Ref: Precision-Preserving Compression-Footnote-1405557
Ref: Precision-Preserving Compression-Footnote-2405927
Ref: Precision-Preserving Compression-Footnote-3406349
Ref: Precision-Preserving Compression-Footnote-4407468
Ref: Precision-Preserving Compression-Footnote-5408836
Node: Deflation409034
Node: MD5 digests411279
Node: Buffer sizes415256
Ref: Buffer sizes-Footnote-1416554
Node: RAM disks416678
Node: Unbuffered I/O421691
Node: Packed data422990
Ref: Packed data-Footnote-1430826
Ref: Packed data-Footnote-2431003
Node: Operation Types431230
Node: Type Conversion438950
Node: Automatic type conversion440216
Ref: Automatic type conversion-Footnote-1447026
Ref: Automatic type conversion-Footnote-2447049
Ref: Automatic type conversion-Footnote-3447242
Node: Promoting Single-precision to Double447446
Ref: Promoting Single-precision to Double-Footnote-1466359
Ref: Promoting Single-precision to Double-Footnote-2466824
Ref: Promoting Single-precision to Double-Footnote-3467317
Ref: Promoting Single-precision to Double-Footnote-4467617
Ref: Promoting Single-precision to Double-Footnote-5467722
Node: Manual type conversion467786
Node: Batch Mode468771
Node: Global Attribute Addition469932
Node: History Attribute472451
Ref: History Attribute-Footnote-1476081
Node: File List Attributes476330
Node: CF Conventions478134
Node: ARM Conventions494285
Node: Operator Version496400
Node: Reference Manual497558
Node: ncap2 netCDF Arithmetic Processor498692
Node: Syntax of ncap2 statements504427
Node: Expressions505799
Node: Dimensions513159
Node: Left hand casting515408
Node: Arrays and hyperslabs520253
Node: Attributes526681
Node: Value List530441
Node: Number literals531696
Node: if statement535649
Node: Print & String methods537873
Node: Missing values ncap2542051
Node: Methods and functions547137
Node: RAM variables554429
Node: Where statement555709
Node: Loops561032
Node: Include files562367
Node: Sort methods563591
Node: UDUnits script574948
Node: Vpointer578668
Node: Irregular grids583135
Node: Bilinear interpolation588664
Node: GSL special functions592914
Ref: GSL special functions-Footnote-1615263
Node: GSL interpolation616583
Node: GSL least-squares fitting618663
Node: GSL statistics622718
Node: GSL random number generation626491
Node: Examples ncap2630996
Node: Intrinsic mathematical methods638567
Ref: Intrinsic mathematical methods-Footnote-1643920
Ref: Intrinsic mathematical methods-Footnote-2644779
Node: Operator precedence and associativity644852
Node: ID Quoting647404
Node: make_bounds() function649945
Node: solar_zenith_angle function651189
Node: ncatted netCDF Attribute Editor652551
Ref: ncatted netCDF Attribute Editor-Footnote-1673256
Node: ncbo netCDF Binary Operator674337
Ref: ncbo netCDF Binary Operator-Footnote-1688139
Ref: ncbo netCDF Binary Operator-Footnote-2688328
Ref: ncbo netCDF Binary Operator-Footnote-3688688
Ref: ncbo netCDF Binary Operator-Footnote-4688748
Ref: ncbo netCDF Binary Operator-Footnote-5688820
Ref: ncbo netCDF Binary Operator-Footnote-6689026
Node: ncchecker netCDF Compliance Checker689383
Node: ncclimo netCDF Climatology Generator691447
Ref: ncclimo netCDF Climatology Generator-Footnote-1778718
Ref: ncclimo netCDF Climatology Generator-Footnote-2779129
Ref: ncclimo netCDF Climatology Generator-Footnote-3779396
Node: ncecat netCDF Ensemble Concatenator779706
Node: nces netCDF Ensemble Statistics789344
Ref: nces netCDF Ensemble Statistics-Footnote-1799494
Ref: nces netCDF Ensemble Statistics-Footnote-2799772
Node: ncflint netCDF File Interpolator800295
Node: ncks netCDF Kitchen Sink809149
Ref: ncks netCDF Kitchen Sink-Footnote-1885166
Ref: ncks netCDF Kitchen Sink-Footnote-2885484
Ref: ncks netCDF Kitchen Sink-Footnote-3885855
Node: Filters for ncks885970
Node: ncpdq netCDF Permute Dimensions Quickly902366
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-1924399
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-2924504
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-3925085
Node: ncra netCDF Record Averager925357
Node: ncrcat netCDF Record Concatenator936155
Node: ncremap netCDF Remapper940776
Ref: ncremap netCDF Remapper-Footnote-11093894
Ref: ncremap netCDF Remapper-Footnote-21094305
Ref: ncremap netCDF Remapper-Footnote-31094388
Ref: ncremap netCDF Remapper-Footnote-41094530
Ref: ncremap netCDF Remapper-Footnote-51094856
Ref: ncremap netCDF Remapper-Footnote-61095323
Ref: ncremap netCDF Remapper-Footnote-71095609
Node: ncrename netCDF Renamer1095683
Node: ncwa netCDF Weighted Averager1115405
Ref: ncwa netCDF Weighted Averager-Footnote-11120842
Ref: ncwa netCDF Weighted Averager-Footnote-21120983
Node: Mask condition1121189
Ref: Mask condition-Footnote-11122664
Node: Normalization and Integration1122864
Ref: Normalization and Integration-Footnote-11128669
Ref: Normalization and Integration-Footnote-21128743
Ref: Normalization and Integration-Footnote-31128867
Node: Contributing1129036
Ref: Contributing-Footnote-11129771
Node: Contributors1130185
Node: Citation1134590
Node: Proposals for Institutional Funding1135956
Node: Quick Start1137131
Node: Daily data in one file1137608
Node: Monthly data in one file1139030
Node: One time point one file1140692
Node: Multiple files with multiple time points1141649
Node: CMIP5 Example1142141
Node: Combine Files1144877
Node: Global Distribution of Long-term Average1154331
Ref: fgr:glb1154567
Node: Annual Average over Regions1159342
Ref: fgr:anl1159552
Node: Monthly Cycle1172449
Ref: fgr:mon1172608
Node: Regrid MODIS Data1179672
Node: Add Coordinates to MODIS Data1187232
Node: Permute MODIS Coordinates1189234
Node: Parallel1191171
Node: CCSM Example1191523
Node: mybibnode1205326
Ref: ZeM071205451
Ref: Zen081205682
Ref: WZJ071205890
Ref: ZMW061206276
Ref: ZeW071206516
Ref: WZJ061206931
Ref: WZJ0731207121
Ref: WZJ0741207569
Ref: WZJ0811207771
Ref: WZJ0911208051
Ref: PFT881208269
Node: General Index1208396

End Tag Table


Local Variables:
coding: utf-8
End:
