TY JOUR TI Inverse-forward method for heat flow estimation: case study for the Arctic region KW geothermal heat flow KW Arctic KW inversion KW optimization KW lithosphere JO Russian Journal of Earth Sciences AU Petrunin, A.G. AU Soloviev, A.A. AU Sidorov, R.V. AU Gvishiani, A.D. PY 2022 IS 22 PB Geophysical Center of the Russian Academy of Sciences