MOHV21: a least squares combination of five global Moho depth models

Abstract The purpose of this study is to determine MOHV21, a Moho depth model based on an optimal combination five global seismic and gravimetric-isostatic models by weighted least squares approach at resolution 1° × 1°. For proper weighting among the data, starts with determining (mostly missing) standard errors correlations models. input range from 1.0 (in Brazil) 6.8 km Peru) 0.1 Huna Bay) 6.0 East Pacific Ridge) for land ocean, respectively. between − 0.99 + 0.90. depths MOHV21 regions vary 14.5 (at Horn Africa) 75 Himalayas) 6.6 Greenland Sea) 51.8 Gulf Bothnia) ocean regions, respectively (However, note that, Bothnia belongs continental crust, while oceanic crust generally within 20 km). are few but reaches (9%) in highest mountains. shallow along mid-ocean ridges well exposed model. Notable regional highs visualized Tarim basin NW China 59 ± 6.5 Central Finland 57 4.7 km. A comparison mosaic shows large differences reaching 25 Africa, Antarctic, parts S. America, relatively modest those oceans that available