Differential absorption lidar for water vapor isotopologues in the 1.98 µm spectral region: sensitivity analysis with respect to regional atmospheric variability oleh J. Hamperl, C. Capitaine, J.-B. Dherbecourt, M. Raybaut, P. Chazette, J. Totems, B. Grouiez, L. Régalia, R. Santagata, C. Evesque, J.-M. Melkonian, A. Godard, A. Seidl, A. Seidl, H. Sodemann, H. Sodemann, C. Flamant