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Earth Sciences and Mapping

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Geodesy
Geometric geodesy is the study and measurement of the Earth’s shape and accounts for planetary curvature in geospatial calculations. Learn more with related examples, videos, and other resources.
Submitted: September 9, 2011
Map Projection
Map projection are used to manages distortions in map displays introduced when visualizing a 3D surface on a 2D display. Learn more with related examples, videos, and other resources.
Submitted: September 9, 2011
MathWorks - Mapping Toolbox  
The Mapping Toolbox provides a comprehensive set of functions and graphical user interfaces for performing interactive geographic computations, data fusion, map projection display, generation of presentation graphics, and accessing external geographic data. In addition, the toolbox ships with several, widely used atlas data sets for global and regional displays. Its flexibility, broad functionality, ease-of-use, and built-in visualization tools serve a wide range of engineering and scientific users who work with geographically based information.
Submitted: Jul 02, 1999
Free Online MathWorks Seminar: Geospatial Data Analysis Using MATLAB  
Learn how MATLAB provides a complete environment in which to visualize, explore, and analyze geospatial data such as vector maps, georeferenced imagery, and terrain data.
Submitted: Aug 11, 2004
Geospatial Data Analysis Using MATLAB  
Learn how MATLAB provides a complete environment in which to visualize, explore, and analyze geospatial data such as vector maps, georeferenced imagery, and terrain data. Version 2.0 of the Mapping Toolbox has significant new capabilities, such as support for standard GIS and geospatial file formats, new display functions (including display of georeferenced imagery and vector symbolization), projection enhancements, and a new interactive map viewer. These capabilities are useful in applications such as aerospace, defense, geophysics, intelligence, oceanography, and other earth and planetary sciences. This webinar includes a brief product overview and several demonstrations.
Submitted: Jun 24, 2004
Geographical Tools M-files  
User contributed earth sciences m-files from the MATLAB Central File Exchange.
Submitted: Apr 18, 2000
Satellite Navigation (SatNav) Toolbox - Simulation and analysis software for GPS and GNSS  
The Satellite Navigation (SatNav) Toolbox is a collection of M-files for total system simulation. GPS, Glonass, and user-definable satellite constellations are emulated, along with the raw measurements (pseudo-range and carrier-phase) formed by the receiver. The toolbox also provides functions to process the measurements in a variety of GNSS applications. Users include scientists, engineers, university educators, and students who need to simulate and analyze satellite-based navigation systems. The toolbox is delivered as a set of M-files. The SatNav Toolbox is fully compatible with GPSofts' Inertial Navigation System (INS) Toolbox, which allows for simulation of integrated GPS and INS applications. The toolbox has recently been updated and now allows the user to emulate the C/A-code on L1, L2, L5 and any other user defined frequency. In addition, the toolbox can be used to simulate P-code on L1 and L2. Application Areas: Aerospace; Application development; Data analysis/modeling; Educational instruction; GPS analysis; Navigation.
Submitted: Apr 07, 2000
Maps and oceanography  
It is updated in 2006.
Submitted: Feb 21, 2006
WORLD TIDES and WORLD CURRENTS  
WORLD TIDES© and WORLD CURRENTS© are MATLAB GUI programs for the analysis and prediction of tides and tidal currents in coastal oceans and estuaries. Up to 35 tidal constituents may be selected using a harmonic reduction in variance procedure similar to multiple regression analysis to obtain a customized set of tidal harmonic constants. Predictions can then be made at water level or water current stations that have these constants in any region of the world. Although the programs were written with oceanographers and ocean engineers in mind who often work in areas with a paucity of reliable field data, files up to one year in length may be analyzed. Companion programs ‘coopsR6m’ and ‘coopsVhr’ permit downloading of recent and historical data from more than 240 active water level stations in the continental U.S., Alaska and Hawaii using SOAP web services provided by the U.S. National Oceanographic and Atmospheric Administration (NOAA). WORLD TIDES can now perform storm tide analysis of the data and determine extratidal water levels using Highest Astronomical Tide (HAT) and Lowest Astronomical Tide (LAT), datums determined by the program.
Submitted: Mar 05, 2007
WAFO Wave Analylsis for Fatigue and Oceanography  
WAFO is a toolbox of MATLAB routines for statistical analysis and simulation of random waves and random loads. Covers Statistical distributions, probability papers, kernel density estimation, numerical integration, estimation of spectra, theoretical distributions of characteristic wave parameters from power spectra of the sea, statistical analysis of fatigue, theoretical density of rainflow cycles, modelling of switching loads (hidden Markov models).
Submitted: May 05, 2001
GPSoft INS Toolbox  
Expanding on the highly successful SatNav Toolbox, GPSoft is proud to introduce the INS Toolbox for Matlab®. As with the SatNav Toolbox, the INS Toolbox has been designed specifically with simulation and analysis in mind. Raw measurments (delta-V's and delta theta's) are generated and typical error sources (gyro and accelerometer biases, scale factor errors, noise and initialization errors) are emulated. The Toolbox is fully compatible with the SatNav Toolbox to allow for integrated system analysis and simulation.
Submitted:
M_Map Toolbox  
M_Map is a set of mapping tools written for MATLAB v5. These include routines to project data in 14 different spherical projections (and determine inverse mappings); A grid generation routine to make nice axes with limits either in lat/long terms or in planar X/Y terms; A coastline database (with 1/4 degree resolution); A global elevation database (1 degree resolution).
Submitted: Jul 02, 1999
Rich Pawlowicz's MATLAB Stuff  
Mapping toolbox, Air-Sea toolbox, OCEANS toolbox and extended contouring capabilities.
Submitted: Feb 18, 1998
SEAWATER LIBRARY  
SEAWATER is a toolkit of MATLAB routines for calculating the properties of sea water. They are a self contained library and are extremely easy to use.
Submitted: Jun 30, 1999
Constellation Toolbox - A comprehensive simulation and analysis package for satellite constellations  
The Constellation Toolbox is a set of MATLAB based utilities for the analysis and simulation of satellite constellations, including GPS, GLONASS, and user-defined constellations. Basic constellation visibility and interference problems are modeled. The toolbox provides GPS specific error models for Selective Availability, atmospheric delays, receiver errors, and GPS satellite errors. Also included is DGPS modeling capability. Simulated GPS data includes eudorange, carrier phase, and Doppler measurements which are used to obtain navigation solutions. Graphical output is provided with specialized functions for plotting data for satellite constellations. For quick implementation by users, a robust set of example programs solve many problems with only minor modifications. Application Areas: Aerospace; Constellation design; Earth sciences/geosciences; Hydraulics/pneumatics; Semiconductors; Test equipment/instruments.
Submitted: Apr 07, 2000
GTM  
GTM, which stands for Generative Topographic Mapping, is a model for density modeling and data visualization, currently being developed at the Neural Computing Research Group. This page is meant to provide up to date information about the results from this research, in terms of papers, technical reports, software, demos etc.
Submitted: Jul 02, 1999
SeaGrid  
SeaGrid is a Matlab 5.2+ application for generating an orthogonal grid within a curved perimeter, suitable for oceanographic modeling.
Submitted: Nov 23, 1999
GI-EYE - GPS/Inertial mapping and georegistration system  
The GI-Eye system is a Global Positioning System (GPS), inertial, and digital camera sensor designed for collecting precision video data to be used for geolocation of target or feature coordinates. GI-Eye takes advantage of differential GPS to provide the precise location of each camera image by using the NAVSYS proprietary kinematic alignment algorithm to measure the precise attitude of the camera using the inertial sensor data. By recording the precise location and attitude of the video images, the extraction of feature location data is simplified and streamlined. This results in more efficient and rapid data processing, thus reducing the time required to generate high-accuracy target or feature coordinates. Application Areas: Data analysis/modeling; Machine vision; Mapping; Satellite design.
Submitted: Apr 07, 2000
WAFO Wave Analylsis for Fatigue and Oceanography  
WAFO is a toolbox of MATLAB routines for statistical analysis and simulation of random waves and random loads. Covers Statistical distributions, probability papers, kernel density estimation, numerical integration, estimation of spectra, theoretical distributions of characteristic wave parameters from power spectra of the sea, statistical analysis of fatigue, theoretical density of rainflow cycles, modelling of switching loads (hidden Markov models).
Submitted: Oct 01, 2004
Air Sea Toolbox for MATLAB  
Air-Sea toolbox is a collection of MATLAB programs (m-files) which can be used to compute surface wind stress and heat flux components from buoy and shipboard atmospheric and near-surface oceanographic time series measurements.
Submitted: Sep 14, 2000
Gridgen  
GRIDGEN is a MATLAB-based tool to construct orthongonal curvilinear grids for of NetCDF files for ECOM and SCRUM ocean circulation models. There exist command-line utilities for generating grids, but it is difficult to really see what you are doing until you are finished doing it. With gridgen, one can see the results of one's actions at each step, and even backtrack if necessary. Because of performance concerns, some routines had to be placed in native fortran and C code mex-files, so portability is a concern. So far it has run successfully on the Win95, SGI, Digital UNIX and Linux platforms. One should also be aware that the author considers this to be beta software, so use at your own risk!
Submitted: Jul 11, 1999
Kingman Consulting - Consulting for electrical and mining geophysics applications  
I provide special expertise in two primary areas: analysis and processing of electrical geophysics and drilling dynamics data using MATLAB. In addition, I have general expertise in digital signal processing and vibration analysis. Application Areas: Data acquisition; Data analysis/modeling; Earth sciences/geosciences; Global Positioning Systems; Hydraulics/pneumatics; Mechanics/compression systems; Mining, drilling.
Submitted: Apr 07, 2000
Mirone  
Mirone is a general Earth Sciences application for MATLAB. It provides visualization and manipulation capabilities to a very wide range of grid formats. This is mainly accomplished trough mex interfaces to both GMT and GDAL libraries.
Submitted: Jan 15, 2006
SeaGrid Orthogonal Grid Maker For Matlab  
Starting from a conformal projection (such as Mercator) of the targeted area, SeaGrid uses the Ives-Zacharias scheme to conformally map the curved perimeter to a rectangle, after which, a Poisson solver fills the interior with orthogonally distributed grid points. Control over such features as the number of grid-cells and the density of grid lines is provided by menus, dialogs, and direct graphical manipulation of objects in the program's display window. Behind the scenes, Seagrid uses a new object-oriented window manager (Presto), plus some Mex-files. None of these rely on optional MathWorks toolboxes.
Submitted: Jan 08, 2008
Tree-Ring Matlab Toolbox  
The Tree-Ring Matlab Toolbox is a collection of MATLAB functions for commonly used dendrochronological analysis. Included are functions for automatic generation of skeleton plots from ring-width measurements and for computing and plotting the response function of tree-ring indices to seasonal climate.
Submitted: Jan 02, 2002
Water mass mixing analysis (OMP)  
OMP analysis is a tool for oceanographers, geochemists as well as all people interested in separating mixing signals and biogeochemical cycling signals from hydrographic data.
Submitted: Nov 11, 2001
GCE Data Toolbox for MATLAB  
The GCE Data Toolbox is a comprehensive library of functions for metadata-based analysis, visualization, transformation and management of ecological data sets. The toolbox is based on the GCE Data Structure specification, a standard for storing tabular data along with all information required to interpret the data and generate formatted metadata (documentation). The various metadata fields in the structure are queried by toolbox functions for all operations, allowing functions to process and format values appropriately based on the type of information they represent. This 'semantic processing' approach supports highly automated and intelligent data analysis and ensures data set validity throughout all processing steps.
Submitted: Feb 23, 2005
Raster to SEG-Y  
Program to transform raster images of a scanned old seismic records on paper to georeferenced SEG-Y compatible with all geophysical exploration software.
Submitted: Nov 21, 2006
Menyanthes  
Menyanthes is a many-sided and user-friendly computer program for the analysis of groundwater level data. It facilitates the management, processing, presentation, analysis, and modeling of series of groundwater level observations, taken from piezometers or observation wells. The foundation of the program is an internal database, which you can easily populate with data from other programs, such as DAWACO, DINO, or data in EXCEL, or text files.
Submitted: Oct 07, 2004
M_Map: A mapping package for Matlab  
M_Map is a set of mapping tools written for MATLAB v5. These include: Routines to project data in 18 different spherical projections (and determine inverse mappings); A grid generation routine to make nice axes with limits either in lat/long terms or in planar X/Y terms; A coastline database (with 1/4 degree resolution); A global elevation database (1 degree resolution); Hooks into freely available high-resolution coastline and bathymetry databases.
Submitted: Jun 02, 2005



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