Esri ArcGIS Desktop Professional Certification Study Guide

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Mike Flanagan. Esri ArcGIS Desktop Professional Certification Study Guide

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Acknowledgments

Chapter 1 Introduction

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Mosaic datasets

ArcGIS allows you to organize, store, and manage raster data as a raster dataset, a mosaic dataset, or a raster catalog. Of these options, a mosaic dataset is the recommended data model for most use cases. Mosaic datasets are stored in geodatabases; they consist of a collection of raster datasets stored as a catalog; the participating raster datasets can be viewed as a single mosaicked image or as individual images. All mosaic dataset data is referenced from its original storage location, so data can remain in its original format and is not restricted by the different projections, resolutions, pixel depths, or numbers of bands that exist. Mosaic datasets support processing on the fly using raster functions and provide support for LAS datasets. Adding LAS datasets to your mosaic dataset allows you to use 3D Analyst tools, such as the Slope tool or the Viewshed tool, and gives you the ability to use your lidar data as a DEM.

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