Obtain, organize, and visualize NCEP weather data This package contains functions to retrieve, organize, and visualize weather data from the NCEP/NCAR Reanalysis and NCEP/DOE Reanalysis II datasets. Data are queried via the Internet and may be obtained for a specified spatial and temporal extent or interpolated to a point in space and time. We also provide functions to visualize these weather data on a map. There are also functions to simulate flight trajectories according to specified behavior using either NCEP wind data or data specified by the user. Software Depends: R (>= 2.10), abind, maps, fields, tgp, fossil, tcltk, RColorBrewer Suggests: raster, sp, RSAGA Michael U. Kemp <M.U.Kemp@UvA.nl> Michael U. Kemp <M.U.Kemp@UvA.nl> with contributions from E. Emiel van Loon, Judy Shamoun-Baranes, and Willem Bouten GPL (>= 2) 2012-04-05 application/tgz http://CRAN.R-project.org/package=RNCEP