GPHY384, lectures 15&16
GPHY384, lectures 15&16 GPHY 384
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This 1 page Class Notes was uploaded by Sarah Massar on Sunday March 20, 2016. The Class Notes belongs to GPHY 384 at Montana State University taught by Stuart Challenger in Fall 2015. Since its upload, it has received 11 views. For similar materials see Advanced GIS and Spatial Analysis in Earth Sciences at Montana State University.
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Date Created: 03/20/16
GPHY384 Lecture 15&16 3/8&10 Lecture 15 3/8 -Test Review RASTER +Raster- uses cells that represent categories -always a number -Use an associated table to find what values mean +Extended Raster-join the raster table and associated to get more data -Two types +Categorical Raster- an array of equally sized cells arranged in rows and columns, and composed of single or multiple bands. Each cell contains an attribute value and location coordinates. +Zone-group of cells with same value +Region- zone of cells that are continuous -stored in Integrated Grid +Continuous- elevation -whole or decimal numbers -no value attribute table -Stored in Floating Point grid +NoData- is a value -cell will not participate in the drawing Lecture 16 3/10 -Went over lab 8
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