Characteristics of the atmospheric CO2 signal as observed over the conterminous...
Choi, Y., S. A. Vay, K. Vadrevu, A. Soja, J. Woo, S. R. Nolf, G. Sachse, G. S. Diskin, D. R. Blake, N. J. Blake, H. Singh, M. Avery, A. Fried, L. Pfister, and H. Fuelberg (2008), Characteristics of the atmospheric CO2 signal as observed over the conterminous United States during INTEX-NA, J. Geophys. Res., 113, D07301.