DE 13 - NV.Atlas Ostfriesland - Borkum bis Helgoland & Ems Format: Paper Atlas Booklet with Digital download and App - Passage Charts - Coastal Charts - Details - Tides and Currents - Harbour Plans - NV Charts app code - Notes in German and English Watch a video explaining the registration process for the free App which is supplied with each Chart Atlas here. The Charts for the sea area "Ostfriesland - Island of Borkum to Island of Helgoland & River Ems" are for use by the leisure mariners optimised and professional cartography for the North Sea. All information necessary for the navigation in the challenging waters of the German Bight is provided together with additional harbour plans and details for approaches and passages in these waters. The chart folio also contains tidal data and currents. They are referenced to tidal diamants in the charts. The atlas format allows a clear structure for navigation. Approaches, ports and anchorage are found fast and easily. All nautical information and important details are available in the charts and in the digital version of the app as well. Tidal data is shown in the software and app. The NV Charts cartography is famous for its clever design of the coverage for each chart making best possible use of each scale. The NV Charts are characterised by fine contours and easy to distinguish colour graduations of the depth lines. The importance of good graphical representation of the topography when sailing is essential. Well marked rivers, towns and street plans all help to give a clear overall view of the shore side facilities of the islands. In waters soundings and heights are given in meters. Large scale approaches and land contour markings simplify the entrance into anchorages. Scales: Passage Charts C1 Ostfriesland 1:375,000 C2 Rottumerplaat bis Norderney 1:150,000 C3 Norderney bis Wangerooge 1:150,000 Coastal Charts C4 Westerems 1:50,000 C5 Osterems 1:50,000 C6 Dovetief 1:50,000 C7 Norderney bis Langeoog 1:50,000 C8 Spiekeroog 1:50,000 C9 Ansteuerung von Helgoland 1:50,000 C13 Borkum bis Dukegat 1:50,000 C14 Dukegat bis Emder Fahrwasser 1:50,000 C15 Ansteuerung Delfzijl 1:25,000 C16 Emder Fahrwasser 1:25,000 C17A Dollard 1:50,000 C18 Unterems bis Leer 1:25,000 C19A/B Leer bis Papenburg 1:25,000 C20 Papenburg bis Lathen 1:50,000 Details C10 Helgoland 1:12,500 C11A Borkum Hafen 1:15,000 C11B Dornumersiel 1:12,500 C11C Harlesiel 1:12,500 C11D Norddeich 1:20,000 C11E Bensersiel 1:12,500 C11F Langeoog Hafen 1:12,500 C11G Neuharlingersiel 1:7,500 C11H Norderney Hafen 1:12,500 C11J Dove Harle 1:25,000 C12A Baltrum Hafen 1:7,500 C12B Spiekeroog Hafen 1:10,000 C12C Juist Hafen 1:7,500 C12D Leysiel Schleuse 1:7,500 C12E Greetsiel Hafen 1:10,000 C17 Emden 1:12,500