Debian Science Meteorology packages

Climate Data Operators are a collection of command line Operators to manipulate and analyse Climate model Data. Supported data formats are GRIB, netCDF, SERVICE, EXTRA and IEG. There are more than 400 operators available.

DB-All.e is a fast on-disk database where meteorological observed and forecast data can be stored, searched, retrieved and updated.

This framework allows to manage large amounts of data using its simple Application Program Interface, and provides tools to visualise, import and export in the standard formats BUFR, AOF and CREX.

The main characteristics of DB-ALL.e are:

• Fortran, C, C++ and Python APIs are provided.
• To make computation easier, data is stored as physical quantities, that is, as measures of a variable in a specific point of space and time, rather than as a sequence of report.
• Internal representation is similar to BUFR and CREX WMO standard (table code driven) and utility for import and export are included (generic and ECMWF template).
• Representation is in 7 dimensions: latitude and longitude geographic coordinates, table driven vertical coordinate, reference time, table driven observation and forecast specification, table driven data type.
• It allows to store extra information linked to the data, such as confidence intervals for quality control.
• It allows to store extra information linked to the stations.
• Variables can be represented as real, integer and characters, with appropriate precision for the type of measured value.
• It is based on physical principles, that is, the data it contains are defined in terms of homogeneous and consistent physical data. For example, it is impossible for two incompatible values to exist in the same point in space and time.
• It can manage fixed stations and moving stations such as airplanes or ships.
• It can manage both observational and forecast data.
• It can manage data along all three dimensions in space, such as data from soundings and airplanes.
• Report information is preserved. It can work based on physical parameters or on report types.

The Grid Analysis and Display System (GrADS) is an interactive desktop tool that is used for easy access, manipulation, and visualization of earth science data. The format of the data may be either binary, GRIB, NetCDF, or HDF-SDS (Scientific Data Sets). GrADS has been implemented worldwide on a variety of commonly used operating systems and is freely distributed over the Internet.

GrADS uses a 4-Dimensional data environment: longitude, latitude, vertical level, and time. Data sets are placed within the 4-D space by use of a data descriptor file. GrADS interprets station data as well as gridded data, and the grids may be regular, non-linearly spaced, gaussian, or of variable resolution. Data from different data sets may be graphically overlaid, with correct spatial and time registration. Operations are executed interactively by entering FORTRAN-like expressions at the command line. A rich set of built-in functions are provided, but users may also add their own functions as external routines written in any programming language.

Data may be displayed using a variety of graphical techniques: line and bar graphs, scatter plots, smoothed contours, shaded contours, streamlines, wind vectors, grid boxes, shaded grid boxes, and station model plots. Graphics may be output in PostScript or image formats. GrADS provides geophysically intuitive defaults, but the user has the option to control all aspects of graphics output.

GrADS has a programmable interface (scripting language) that allows for sophisticated analysis and display applications. Use scripts to display buttons and dropmenus as well as graphics, and then take action based on user point-and-clicks. GrADS can be run in batch mode, and the scripting language facilitates using GrADS to do long overnight batch jobs.

The ECMWF GRIB API is an application program interface accessible from C and FORTRAN programs developed for encoding and decoding WMO FM-92 GRIB edition 1 and edition 2 messages.

This is a useful set of command line tools to give quick access to grib messages.

ECMWF is the European Centre for Medium-Range Weather Forecasts.

You would use ncview to get a quick and easy, push-button look at your NetCDF files. You can view simple movies of the data, view along various dimensions, take a look at the actual data values, change color maps, invert the data and other simple visual operations.

This application, written with the Qt toolkit, enables:

• Visualisation of meteo data from files in GRIB Format 1
• Automatic GRIB data download
• Automatic Download from IAC (fleetcode) Data

Gerris is a system for the solution of the partial differential equations describing fluid flow.

A brief summary of its main (current) features:

• Solves the time-dependent incompressible variable-density Euler, Stokes or Navier-Stokes equations
• Adaptive mesh refinement: the resolution is adapted dynamically to the features of the flow
• Entirely automatic mesh generation in complex geometries
• Second-order in space and time
• Unlimited number of advected/diffused passive tracers
• Flexible specification of additional source terms
• Portable parallel support using the MPI library
• Volume of Fluid advection scheme for interfacial flows

A free IDL (Interactive Data Language) compatible incremental compiler. It has full syntax compatibility with IDL 6.0.

This package provides functions to work with NetCDF data files in Octave, a numerical computation software. This package provides a function (netcdf) that creates and reads NetCDF files and writes to a NetCDF file (ncdump) among others.

This Octave add-on package is part of the Octave-Forge project.

R is a system for statistical computation and graphics. It consists of a language plus a run-time environment with graphics, a debugger, access to certain system functions, and the ability to run programs stored in script files.

The design of R has been heavily influenced by two existing languages: Becker, Chambers & Wilks' S and Sussman's Scheme. Whereas the resulting language is very similar in appearance to S, the underlying implementation and semantics are derived from Scheme.

The core of R is an interpreted computer language which allows branching and looping as well0;115;0c as modular programming using functions. Most of the user-visible functions in R are written in R. It is possible for the user to interface to procedures written in the C, C++, or FORTRAN languages for efficiency, and many of R's core functions do so. The R distribution contains functionality for a large number of statistical procedures and underlying applied math computations. There is also a large set of functions which provide a flexible graphical environment for creating various kinds of data presentations.

Additionally, over thousand extension "packages" are available from CRAN, the Comprehensive R Archive Network, many also as Debian packages, named 'r-cran-'.

This package is a metapackage which eases the transition from the pre-1.5.0 package setup with its larger r-base package. Once installed, it can be safely removed and apt-get will automatically upgrade its components during future upgrades. Providing this packages gives a way to users to then only install r-base-core if they so desire.

Network opensource is a standards based, Free and Open Source catalog application to manage spatially referenced resources through the web. It provides powerful metadata editing and search functions as well as an embedded interactive web map viewer. This website contains information related to the use of the software.

HDF-EOS is a software library that is an extension of National Center for Supercomputing Applications (NCSA) HDF. The library supports the construction of new data structures: Grid, Point and Swath.

HDF-EOS is a software library that is an extension of National Center for Supercomputing Applications (NCSA) HDF. The library supports the construction of new data structures: Grid, Point and Swath.

Magics++ is the latest generation of the ECMWF's Meteorological plotting software MAGICS. Although completely redesigned in C++, it is intended to be as backwards-compatible as possible with the Fortran interface. Besides its programming interfaces (Fortran and C), Magics++ offers MagML, a plot description language based on XML aimed at automatic web production.

This package contains the MagcML binary that may be used with magics++.

The NCAR Command Language (NCL) is a free interpreted language designed specifically for scientific data processing and visualization. NCL has robust file input and output. It can read and write netCDF-3, netCDF-4 classic (as of version 4.3.1), HDF4, binary, and ASCII data, and read HDF-EOS2, GRIB1 and GRIB2 (as of version 4.3.0). The graphics are world class and highly customizable.