The Global Groundwater Information System (GGIS)
                                    完了要件
                                    
                                    
                                        
                                    
                                
                        The GGIS is an interactive portal for sharing data and information on 
groundwater resources around the world. It gives access to map layers, 
documents, and well and monitoring data. It also contains several 
thematic map viewers.
リソースを開くには The Global Groundwater Information System (GGIS) をクリックしてください。