Unstructured triangular mesh around Orkney and Shetland Islands for hydrodynamic simulations. Mesh constructed with qmesh (www.qmesh.org), using input files at 10.6084/m9.figshare.4519067.v1Unstructured triangular mesh around Orkney and Shetland Islands for hydrodynamic simulations. Mesh constructed with qmesh (www.qmesh.org), using input files at 10.6084/m9.figshare.4519067.v