Figure 7
From: Projections of the future disappearance of the Quelccaya Ice Cap in the Central Andes
ELAatm vs ELASST comparison. Annual mean ELA derived from FLH at QIC calculated by linear regression (equation 1) with annual mean tropical SST from ERSST dataset as predictor (FLHSST using equation 2), compared with ELA derived by interpolating air temperature (Ta) and geopotential height (Zg) from ERA-interim reanalysis between 500 and 600 hPa levels (FLHatm) (black dots). The same approach is applied to the ensemble mean of annual FLHSST and FLHatm obtained from 16 CMIP5 models for Historical (gray dots), RCP4.5 (blue dots) and RCP8.5 (red dots) scenarios. Historical and future simulations were analyzed over the periods 1951–2005 and 2006–2100, respectively. Dashed line represents the 1:1 line. A bias-correction was applied to Ta and ELA, using data from the AWS at QIC summit elevation (5680 m a.s.l.) and estimated highest annual snowline altitude from Landsat images, respectively.
