
MATLAB (Matrix Laboratory)
Matlab (matrix laboratory) is a high-performance language for technical computing. It integrates computation, visualization, and programming in an easy-to-use environment where problems and solutions are expressed in familiar mathematical notation.

NCL (NCAR Command Language)
NCAR Command Language (NCL) is an interpreted language designed specifically for scientific data analysis and visualization. Portable, robust, and free, NCL is available as binaries or open source.

FORTRAN (FORmula TRANslation)
One of the oldest programming languages, the FORTRAN was developed by a team of programmers at IBM led by John Backus and was first published in 1957. The name FORTRAN is an acronym for FORmula TRANslation because it was designed to allow easy translation of math
formulas into code.

NCO (NetCDF Operators)
The netCDF Operators (NCO) comprise a dozen standalone, command-line programs that take netCDF, HDF, and/or DAP files as input, then operate (e.g., derive new data, compute statistics, print, hyperslab, manipulate metadata) and output the results to screen or files in text, binary, or netCDF formats. NCO aids analysis of gridded scientific data. The shell-command style of NCO allows users to manipulate and analyze files interactively, or with expressive scripts that avoid some overhead of higher-level programming environments.

GrADS
The Grid Analysis Display System (GrADS) is an interactive desktop tool that is used for easy
access, manipulation, and visualization of earth science data. GrADS has two data models for handling gridded and station data. GrADS supports many data file formats, including binary (stream or sequential), GRIB (version 1 and 2), NetCDF, HDF (version 4 and 5), and BUFR (for station data). GrADS has been implemented worldwide on a variety of commonly used operating systems and is freely distributed over the Internet.

OpenGrADS
The Grid Analysis and Display System (GrADS) is an interactive desktop tool for easy access, manipulation, and visualization of earth science data. The OpenGrADS Project seeks to develop advanced interfaces and extensions based on the main GrADS engine.
Othe Grads source: http://www.dmc.fmph.uniba.sk/public_html/doc/grads/head.html

CDO (Climate Data Operators)
CDO is a collection of command-line Operators to manipulate and analyze Climate and NWP model Data. Supported data formats are GRIB 1/2, netCDF 3/4, SERVICE, EXTRA, and IEG. There are more than 600 operators available

The R Project for Statistical Computing
R is a free software environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms.

RStudio
RStudio makes R easier to use. It includes a code editor, debugging & visualization tools.

Python
Python is a programming language that lets you work quickly and integrate systems more effectively.

Ferret
Ferret is an interactive computer visualization and analysis environment designed to meet the needs of oceanographers and meteorologists analyzing large and complex gridded data sets. It runs on most Unix systems, and on Windows XP/NT/9x using X windows for display

ArcGIS (The Mapping & Analytics Platform)
ArcGIS provides contextual tools for mapping and spatial reasoning so you can explore data and share location-based insights. ArcGIS creates deeper understanding, allowing you to quickly see where things are happening and how information is connected.