@article{Parrish_1992,
title={The National Meteorological Center’s Spectral Statistical-Interpolation Analysis System},
volume={120},
ISSN={1520-0493},
url={http://dx.doi.org/10.1175/1520-0493(1992)120<1747:tnmcss>2.0.co;2},
DOI={10.1175/1520-0493(1992)120<1747:tnmcss>2.0.co;2},
number={8},
journal={Monthly Weather Review},
publisher={American Meteorological Society},
author={Parrish,
David F. and Derber,
John C.},
year={1992},
month=aug,
pages={1747–1763} }