This is nco.info, produced by makeinfo version 7.0.3 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 © 1995–2023 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: 1122
nco.info-2: 301458
nco.info-3: 612064
nco.info-4: 902635

Tag Table:
(Indirect)
Node: Top1122
Node: Foreword2902
Node: Summary8078
Node: Introduction8885
Node: Availability9173
Ref: Availability-Footnote-111354
Node: How to Use This guide11766
Node: Compatability13585
Ref: Compatability-Footnote-119137
Ref: Compatability-Footnote-219285
Node: Windows Operating System19491
Ref: Windows Operating System-Footnote-122094
Node: Symbolic Links22335
Node: Libraries24351
Ref: Libraries-Footnote-125510
Node: netCDF2/3/4 and HDF4/5 Support25694
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-136699
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-236990
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-337356
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-437478
Ref: netCDF2/3/4 and HDF4/5 Support-Footnote-538557
Node: Help Requests and Bug Reports39051
Node: Strategies43962
Node: Philosophy44360
Node: Climate Model Paradigm45898
Node: Temporary Output Files46537
Ref: Temporary Output Files-Footnote-151781
Ref: Temporary Output Files-Footnote-251899
Node: Appending Variables52008
Ref: Appending Variables-Footnote-154102
Ref: Appending Variables-Footnote-254287
Node: Simple Arithmetic and Interpolation54444
Node: Statistics vs Concatenation55199
Ref: Statistics vs Concatenation-Footnote-156416
Ref: Statistics vs Concatenation-Footnote-256693
Node: Concatenation57081
Node: Averaging60759
Node: Interpolating62244
Node: Large Numbers of Files62772
Ref: Large Numbers of Files-Footnote-168769
Node: Large Datasets69105
Node: Memory Requirements72038
Node: Single and Multi-file Operators73491
Ref: Single and Multi-file Operators-Footnote-179282
Node: Memory for ncap279448
Node: Performance80940
Node: Shared features82947
Node: Internationalization84576
Node: Metadata Optimization85160
Node: OpenMP Threading87121
Node: Command Line Options91182
Ref: Command Line Options-Footnote-193679
Node: Truncating Long Options93972
Node: Multi-arguments95668
Ref: Multi-arguments-Footnote-1100069
Node: Sanitization of Input100366
Node: Specifying Input Files103045
Ref: Specifying Input Files-Footnote-1112496
Node: Specifying Output Files112841
Node: Remote storage114638
Ref: Remote storage-Footnote-1120291
Ref: Remote storage-Footnote-2120520
Ref: Remote storage-Footnote-3120876
Node: OPeNDAP121313
Ref: OPeNDAP-Footnote-1127728
Ref: OPeNDAP-Footnote-2128309
Ref: OPeNDAP-Footnote-3128779
Ref: OPeNDAP-Footnote-4129030
Ref: OPeNDAP-Footnote-5129426
Node: Retaining Retrieved Files129695
Node: File Formats and Conversion131959
Node: File Formats133162
Ref: File Formats-Footnote-1137444
Node: Determining File Format137636
Node: File Conversion141201
Ref: File Conversion-Footnote-1142981
Node: Autoconversion143224
Node: Zarr and NCZarr147679
Node: Large File Support151422
Ref: Large File Support-Footnote-1152965
Node: Subsetting Files153003
Ref: Subsetting Files-Footnote-1168605
Node: Subsetting Coordinate Variables168840
Node: Group Path Editing172064
Node: Flattening Groups174246
Node: Moving Groups179388
Ref: Moving Groups-Footnote-1181592
Node: Dismembering Files181781
Node: Checking CF-compliance189926
Ref: Checking CF-compliance-Footnote-1197310
Node: C and Fortran Index Conventions197466
Node: Hyperslabs199273
Node: Stride206056
Node: Record Appending209397
Node: Subcycle213199
Ref: Subcycle-Footnote-1217184
Node: Interleave217294
Node: Multislabs222740
Node: Wrapped Coordinates230696
Node: Auxiliary Coordinates233634
Node: Grid Generation240915
Ref: Grid Generation-Footnote-1268373
Ref: Grid Generation-Footnote-2268839
Node: Regridding269436
Node: Climatology and Bounds Support301458
Node: UDUnits Support305785
Node: Rebasing Time Coordinate315337
Node: Multiple Record Dimensions318400
Node: Missing Values320729
Ref: Missing Values-Footnote-1326673
Ref: Missing Values-Footnote-2326918
Node: Chunking327027
Ref: Chunking-Footnote-1345675
Node: Compression345925
Ref: fgr:qnt_cr_dfl358361
Ref: fgr:qnt_cr_bz2366969
Ref: fgr:qnt_cr_zst369441
Ref: Compression-Footnote-1370480
Ref: Compression-Footnote-2370604
Ref: Compression-Footnote-3370692
Ref: Compression-Footnote-4370788
Ref: Compression-Footnote-5371351
Ref: Compression-Footnote-6371568
Node: Linear Packing371763
Node: Precision-Preserving Compression373312
Ref: Precision-Preserving Compression-Footnote-1401168
Ref: Precision-Preserving Compression-Footnote-2401538
Ref: Precision-Preserving Compression-Footnote-3401960
Ref: Precision-Preserving Compression-Footnote-4403093
Ref: Precision-Preserving Compression-Footnote-5404477
Node: Deflation404677
Node: MD5 digests406922
Node: Buffer sizes410923
Ref: Buffer sizes-Footnote-1412221
Node: RAM disks412345
Node: Unbuffered I/O417358
Node: Packed data418657
Ref: Packed data-Footnote-1426443
Node: Operation Types426620
Node: Type Conversion434348
Node: Automatic type conversion435616
Ref: Automatic type conversion-Footnote-1442440
Ref: Automatic type conversion-Footnote-2442463
Ref: Automatic type conversion-Footnote-3442656
Node: Promoting Single-precision to Double442860
Ref: Promoting Single-precision to Double-Footnote-1461791
Ref: Promoting Single-precision to Double-Footnote-2462262
Ref: Promoting Single-precision to Double-Footnote-3462761
Ref: Promoting Single-precision to Double-Footnote-4463061
Ref: Promoting Single-precision to Double-Footnote-5463166
Node: Manual type conversion463230
Node: Batch Mode464215
Node: Global Attribute Addition465376
Node: History Attribute467899
Ref: History Attribute-Footnote-1471533
Node: File List Attributes471782
Node: CF Conventions473590
Node: ARM Conventions489753
Node: Operator Version491868
Node: Reference Manual493028
Node: ncap2 netCDF Arithmetic Processor494122
Node: Syntax of ncap2 statements499857
Node: Expressions501229
Node: Dimensions508611
Node: Left hand casting510860
Node: Arrays and hyperslabs515662
Node: Attributes522094
Node: Value List525870
Node: Number literals527129
Node: if statement531082
Node: Print & String methods533306
Node: Missing values ncap2537436
Node: Methods and functions542542
Node: RAM variables549834
Node: Where statement551115
Node: Loops556449
Node: Include files557797
Node: Sort methods559021
Node: UDUnits script570378
Node: Vpointer574097
Node: Irregular grids578605
Node: Bilinear interpolation584140
Node: GSL special functions588390
Ref: GSL special functions-Footnote-1610740
Node: GSL interpolation612064
Node: GSL least-squares fitting614150
Node: GSL statistics618220
Node: GSL random number generation621993
Node: Examples ncap2626501
Node: Intrinsic mathematical methods634073
Ref: Intrinsic mathematical methods-Footnote-1639426
Ref: Intrinsic mathematical methods-Footnote-2640285
Node: Operator precedence and associativity640358
Node: ID Quoting642910
Node: make_bounds() function645515
Node: solar_zenith_angle function646763
Node: ncatted netCDF Attribute Editor648125
Ref: ncatted netCDF Attribute Editor-Footnote-1668720
Node: ncbo netCDF Binary Operator669801
Ref: ncbo netCDF Binary Operator-Footnote-1683576
Ref: ncbo netCDF Binary Operator-Footnote-2683765
Ref: ncbo netCDF Binary Operator-Footnote-3684125
Ref: ncbo netCDF Binary Operator-Footnote-4684185
Ref: ncbo netCDF Binary Operator-Footnote-5684257
Ref: ncbo netCDF Binary Operator-Footnote-6684463
Node: ncclimo netCDF Climatology Generator684820
Ref: ncclimo netCDF Climatology Generator-Footnote-1763367
Ref: ncclimo netCDF Climatology Generator-Footnote-2763778
Ref: ncclimo netCDF Climatology Generator-Footnote-3764045
Node: ncecat netCDF Ensemble Concatenator764355
Node: nces netCDF Ensemble Statistics773991
Ref: nces netCDF Ensemble Statistics-Footnote-1784119
Ref: nces netCDF Ensemble Statistics-Footnote-2784397
Node: ncflint netCDF File Interpolator784920
Node: ncks netCDF Kitchen Sink793750
Ref: ncks netCDF Kitchen Sink-Footnote-1862435
Ref: ncks netCDF Kitchen Sink-Footnote-2862753
Ref: ncks netCDF Kitchen Sink-Footnote-3863124
Node: Filters for ncks863239
Node: ncpdq netCDF Permute Dimensions Quickly878521
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-1900555
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-2900660
Ref: ncpdq netCDF Permute Dimensions Quickly-Footnote-3901241
Node: ncra netCDF Record Averager902635
Node: ncrcat netCDF Record Concatenator912583
Node: ncremap netCDF Remapper917184
Ref: ncremap netCDF Remapper-Footnote-11060374
Ref: ncremap netCDF Remapper-Footnote-21060785
Ref: ncremap netCDF Remapper-Footnote-31060868
Ref: ncremap netCDF Remapper-Footnote-41061010
Ref: ncremap netCDF Remapper-Footnote-51061336
Ref: ncremap netCDF Remapper-Footnote-61061809
Ref: ncremap netCDF Remapper-Footnote-71062095
Node: ncrename netCDF Renamer1062169
Node: ncwa netCDF Weighted Averager1078837
Ref: ncwa netCDF Weighted Averager-Footnote-11084257
Ref: ncwa netCDF Weighted Averager-Footnote-21084399
Node: Mask condition1084605
Ref: Mask condition-Footnote-11086082
Node: Normalization and Integration1086282
Ref: Normalization and Integration-Footnote-11092087
Ref: Normalization and Integration-Footnote-21092161
Ref: Normalization and Integration-Footnote-31092285
Node: Contributing1092454
Ref: Contributing-Footnote-11093189
Node: Contributors1093605
Node: Citation1097863
Node: Proposals for Institutional Funding1099279
Node: Quick Start1100458
Node: Daily data in one file1100935
Node: Monthly data in one file1102357
Node: One time point one file1104019
Node: Multiple files with multiple time points1104976
Node: CMIP5 Example1105470
Node: Combine Files1108218
Node: Global Distribution of Long-term Average1117676
Ref: fgr:glb1117912
Node: Annual Average over Regions1122693
Ref: fgr:anl1122903
Node: Monthly Cycle1135802
Ref: fgr:mon1135961
Node: Regrid MODIS Data1143027
Node: Add Coordinates to MODIS Data1150587
Node: Permute MODIS Coordinates1152589
Node: Parallel1154526
Node: CCSM Example1154878
Node: mybibnode1167563
Ref: ZeM071167688
Ref: Zen081167919
Ref: WZJ071168127
Ref: ZMW061168513
Ref: ZeW071168753
Ref: WZJ061169168
Ref: WZJ0731169358
Ref: WZJ0741169806
Ref: WZJ0811170008
Ref: WZJ0911170292
Ref: PFT881170510
Node: General Index1170637

End Tag Table


Local Variables:
coding: utf-8
End:
