Map of Io’s volcanic heat flow

摘要: Abstract We present a map of Io’s volcanic heat flow. high flow is result intense tidal heating, which generates widespread activity. The surface expression ongoing activity constrains the location and magnitude dissipation within Io. Tidal heating models place either at relatively shallow (aesthenosphere) levels, or deep in mantle. It was thought that actual could be approximated using combination these end-member models. has now been mapped sufficient detail to compare with Our maps show distribution not matched by current nor any two find low sub-jovian (0°W) anti-jovian (180°W) longitudes, odds pure aesthenospheric model. Furthermore, there are large swaths where poor correlation between number hot spots an area power emitted. have previously accounted for ≈54% observed anomalously warm poles, possibly from deep-mantle would yield “missing” energy (48 TW) if polar surfaces temperatures ∼90 K ∼95 K cover latitudes above ∼43° ∼48° respectively. This possibility implies ratio about 1:1. However, explaining regional variations requires more detailed modeling internal consequences mantle convection advection Future model predictions can compared our map.