Marine GIS Applications using
ArcGIS
Global Classroom training course
By
T.Hemasundar rao
Project Assistant
INCOIS
Hyderabad, India
Introduction
Geographic Information Systems (GIS)
It is an integrated set of hardware and software tools used for the
capture, storage, analysis and display of geographic data. GIS technology integrates
common database operations such as query and statistical analysis with the
visualisation and geographic analysis benefits offered by maps and charts
ArcGIS
It is a complete system for authoring, serving, and using geographic
information. It is an integrated collection of GIS software products for building
and deploying a complete GIS.
Introduction to ArcGIS
ArcGIS Desktop contains a suite of software applications for conducting GIS work:
ArcMap is the main application in ArcGIS and is used for all mapping and editing tasks as
well as for map-based query and analysis.
ArcCatalog helps users organize and manage all geographic information, such as maps,
globes, data files, geodatabases, geoprocessing toolboxes, metadata, and GIS services.
ArcToolbox is a collection of geoprocessing tools
Data Viewing in ArcMap
Base Map Creation
Map Projections and Coordinate Systems
Coordinate systems :
Coordinate systems are used for georeferencing used in precise positioning,
navigation, and geographic information systems for the location of points in space.
There are two types of coordinate systems:
Geographic
Projected
Map projection :
“A map projection is any method of representing the surface of a sphere or
other three-dimensional body on a plane”
Map Projections and Coordinate Systems
Interpolation in ArcGIS
ArcGIS Spatial Analyst extension provides tools for spatial data analysis that apply
statistical theory and techniques to the modeling of discrete spatially referenced data
ArcGIS Spatial Analyst uses Inverse Distance Weighted (IDW), Kriging, Spline
Polynomial Trend, and Natural Neighbor interpolation methods to estimate depth,
temperature, rainfall, contamination concentrations or other spatially continuous
phenomena
Interpolating surfaces
Rendering Raster Data
A raster dataset layer is added to ArcMap, it is displayed using the default
renderer most appropriate for the raster layer. ArcMap allows you to choose from
different drawing methods based on your display and analysis needs. You can change
display colours, group data values into classes, or stretch values to increase the visual
contrast.
Rendering Raster Data
Raster Calculator
The Raster Calculator, which is part of the Spatial Analyst extension, provides a
powerful tool for performing mathematical calculations using operators and functions,
set up selection queries, or type in Map Algebra syntax. Inputs can be raster datasets or
raster layers, coverages, shapefiles, tables, constants, and numbers.
Raster Calculator
Working with NetCDF
NetCDF is a set of self-describing, machine-independent data formats that
support the creation, access, and sharing of array-oriented scientific data. It is a file
format for storing multidimensional scientific data (variables) such as temperature,
humidity, pressure, wind speed, and direction.The project homepage is hosted by
theUnidata program at the University Corporation for Atmospheric Research (UCAR).
Working with NetCDF
Plotting Vector Arrows from U and V Component Grids
ArcMap can be used to generate motion vector arrows from U and V
component grids for ocean currents and wind data to plot speed and direction vectors. A
useful tool for visualizing quiver plots can be found in the MGET toolbox which can be
accessed as a toolbox in ArcToolbox.
Plotting Vector Arrows from U and V Component Grids
Creating KML files for Google Earth
KML is a file format used to display geographic data in an earth browser, such as
Google Earth and Google Maps. A KML file specifies a set of features (place marks,
images, polygons, 3D models, textual descriptions, etc.) for display in Google Earth and
Google Maps, or any other geobrowser implementing the KML encoding. Each place
always has a longitude and a latitude. Other attribute data can also be included. KML
files are very often distributed in KMZ files, which are zipped files with a .kmz extension.
KML files for Google Earth
Publication Quality Maps
ArcMap has the capability to create a map for printing or inclusion in another
document using the Layout View.The final map can include the map itself, a title, a
legend, a scale, a north arrow, date of publication, and acknowledgements about data
sources.
Quality Maps Publication