I’ve written previously about some example R scripts I created to extract sea surface temperature data from NOAA’s Optimum Interpolated Sea Surface Temperature products. If you want daily global sea surface temperatures on a 0.25×0.25° grid, they gather those into 1-year files available at http://www.esrl.noaa.gov/psd/data/gridded/data.noaa.oisst.v2.highres.html. If you want weekly average SST values on a 1×1° grid, you can get those back to 1981 at http://www.esrl.noaa.gov/psd/data/gridded/data.noaa.oisst.v2.html. If you just want a smaller file for a single day on the 0.25×0.25° grid, you can find those at http://www.ncdc.noaa.gov/sst/griddata.php.
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David Pierce has made available a pre-packaged Windows binary version of his ncdf4 package for R. Go to his ncdf page to download the zip file you need. The current file at the time of this writing is ncdf_1.8.1.zip.
After downloading the zip file to your Windows computer, you can install this R package most quickly by opening a Rgui.exe window, then going to the menus and choosing Packages>Install package(s) from local zip files…, select the zip file you downloaded, and hit Open to have R install the package.
To use the package in R, you must run a 32-bit …