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M3 (version 0.3)

Reading M3 files

Description

This package contains functions to read in and manipulate air quality model output from Models3-formatted files. This format is used by the Community Multiscale Air Quaility (CMAQ) model.

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Version

Install

install.packages('M3')

Monthly Downloads

161

Version

0.3

License

Unlimited

Maintainer

Jenise Swall

Last Published

May 16th, 2012

Functions in M3 (0.3)

get.canusamex.bds

Obtain map boundaries for Canada, USA, and Mexico

get.proj.info.M3

Obtain information about the projection used in the Models3 file

decipher.M3.date

Decipher Models3 date format (YYYYDDD) into R's Date class.

get.M3.var

Read in variable values from Models3-formatted files

project.M3.to.lonlat

Project coordinates from model units to longitude/latitude

get.grid.info.M3

Get information about the grid used by the air quality model

var.subset

Subset the array resulting from a call to get.M3.var.

get.datetime.seq

Read in a sequence of date-time steps from a Models3-formatted file.

get.coord.for.dimension

Get the grid coordinates for the grid rows or columns.

M3-package

Functions to read in and manipulate air quality model output from files in Models3 format

project.M3.1.to.M3.2

Project coordinates based on projection in the first file to the projection given in the second

project.lonlat.to.M3

Project coordinates from longitude/latitude to model units.

combine.date.and.time

Combine date and time to obtain date-time in POSIX format

get.matrix.all.grid.cell.ctrs

Obtain a matrix giving the locations of the grid cell centers

get.map.lines.M3.proj

Get map lines in the model projection units

decipher.M3.time

Decipher Models3 time format (HHMMSS) into hours, minutes, and seconds.