Proceedings of the National Academy of Sciences (June 28, 2011 vol. 108 no. 26 10405-10409) / by Yi Huang, Stephen Leroy, and Richard M. Goody http://www.pnas.org/content/108/26/10405 [Abstract] In view of the cost and complexity of climate-observing systems, it is a matter of concern to know which measurements, by satellite or in situ, can best improve … Continue reading »