He has published refereed articles on diverse topics relevant to the lower atmosphere temperature trend problem. These topics include moist instability and the physics of vertical (convective) and horizontal (baroclinic) heat transport within the tropical troposphere and tropopause region; the optimal estimation of small climate signals within imperfect datasets; and some performance characteristics of the VIZ and Vaisala radiosonde instruments. He was a contributing author to the 2000 SPARC report on upper troposphere/lower stratosphere water vapor. Relevant publications include: