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  • Stadt Paderborn "Auskunfts- u. Informationssystem Starkregen (AIS) Paderborn" - “Bei einem Starkregenereignis besteht die Gefahr, dass Straßen und Grundstücke überflutet sowie Tiefgaragen und Keller geflutet werden. Um die unterschiedliche Überflutungsgefährdung im Stadtgebiet Paderborn anschaulich darzustellen, wurden im Auftrag der Stadt Paderborn Starkregengefahrenkarten durch die Dr. Pecher AG, Erkrath erstellt und in einem „Auskunfts- und Informationssystem Starkregen“ (AIS) visualisiert. Im AIS werden u.a. die Überflutungsausdehnungen und -tiefen sowie Fließgeschwindigkeiten und -richtungen bei unterschiedlichen Starkregenintensitäten dargestellt”.

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      • “However, positioning technology marches on. With the dawning of a high accuracy Global Positioning System (GPS) in the early 1990s, Loran-C slowly became antiquated and finally the USCG took Loran-C transmitting stations offline in 2010. With no Loran-C signal, Coast Survey followed suit and began to eliminate Loran-C lattices from nautical charts. Most charting customers welcomed the removal of the busy lattices from the chart as it made the chart more readable”.
      • “So why do some people still want nautical charts with a Loran-C lattice? Prior to GPS, many fishermen and commercial diving operations did not use a true latitude and longitude (Lat/Lon) geographic coordinate system to position their offshore features. They identified their favorite fishing or diving locations by Loran-C time delay coordinates. When Loran-C lattices were removed from NOAA charts, many fishermen were left with Loran-C coordinates that had no corresponding Lat/Lon. Therefore, they did not have a way of plotting their Loran-C coordinates on current charts”.

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en/maps.html.txt · Last modified: 2024/02/27 19:27 (external edit) · []
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