The publication of linked geodata on the semantic web may involve relatively complex operations to map source data to their published version and to link these ones to other datasets. In this paper we propose a technique to provide a compact and abstract description of this process. This technique is based on the use of RDF graph mapping rules that are expressed in the SPARQL Semantic web query language. We show that such rules are sufficient to express complex mapping and linking operations at a high level, without referring to operations specific to a particular vendor or tool. We also show how this technique applies to a non-trivial use case in the domain of tropical cyclones.