Anderson, Birks, Rover, Guldager – Alaska lake change from water isotopes Auxiliary Fig. 5 GM WL -70 -90 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XX X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X rain XX X X X X X X X X X X XX XX X X X X X X X X X XX X X X X X X Plot C X X X X X XX X X X X X X X X X X X X X X X X X Plot D X X X X river & gw X X X X X X X Plot L X X X X Plot M X permafrost X X & snow Plot H -110 δ2H (‰VSMOW) X -130 -150 -170 -190 -210 -230 -35 -30 -25 -20 -15 δ18O (‰VSMOW) -10 -5 0