(a) Surface elevation change between 2002 and 2009 as measured by ATM laser altimetry on the along-flow Kohler Glacier (KG) transect delimited by K-K′ shown in Fig. 1a. (b) The 2002 and 2009 ice surface and bottom MCoRDS profiles of KG along the transect delimited by K-K′ in Fig. 1a. The hydrostatic floatation levels were found as described in the caption of Fig. 2b.