![]() Last published in 2016, the Alabama River Navigation Charts are available to download in pdf format (11 x 17 inches) from the Mobile District, and also available for hardcopy purchase from the GPO Bookstore. These services are primarily for client-based web mapping applications. Dynamic Web Services: IENC data have been transformed into shareable application services based on OGC standards, and offered as ArcMap Services, Web Mapping Services (WMS), Web Feature Services (WFS) and KML Services. The XML catalog allows users to configure automatic data updates for software clients, query for product updates and is scaleable to accomodate future products. XML Catalogs: is for dynamic retrieval of IENC products - S-57, esri and KML. Using RSS, Web content providers can easily create and disseminate feeds of data that include, for example, updates, news links, headlines, and summaries. RSS Feeds: is an XML-based format for distributing and aggregating Web content (such as news). Caution is urged in use of these IENCs or derived products for navigation planning or operation, or any decisions pertaining to or affecting safety of vessel operation. Charts Download: Users of these IENCs should be aware that some features and attribute information could have significant inaccuracies due to changing waterway conditions, inaccurate source data, or approximations introduced during chart compilation. Please do not hesitate to contact the IENC program if you have any questions or comments. The Inland Electronic Navigational Chart (IENC) program has relied heavily on its many partners over the years for reliable feedback on the IENC products.The IENC program encourages useage of the following downloadable products for electronic charting systems, GIS mapping applications, programming envirnments and web-base clients. which are not included in the S-57 standard (designed only for maritime use), can now be accurately charted using this standard. For example, features such as Fleeting Areas, Lock Walls, and Casino Boats, etc. This standard, which is based on the S-57 data transfer standard, allows for features which are unique to inland waterways to be accurately encoded on the electronic charts. Tennesse-Tombigbee Waterway, Mile 218-450įor details on how real-world features are charted in these IENCs, please refer to the Inland ENC Encoding Guide, Edition 2.4.1.Tennessee River, Mile 0-652 (Including Tellico, Hiwassee, Clinch and Emory Rivers).Black Warrior-Tombigbee Rivers, Mile 0-393.Electronic chart systems can offer significant benefits to vessels including accurate and real-time display of vessel position relative to waterway features, voyage planning and monitoring, training tools for new personnel and integrated display of river charts, radar, and Automatic Identification Systems.īackground The following IENCs are currently available in Inland ENC 2.4 Data Standard: ![]() The shallow draft waterways have many unique characteristics and difficulties over coastal harbor and ocean navigation river levels can change by over 30 feet in a seasonal cycle, the navigation channel can shift significantly within the river banks, and shifting yet ever present river currents pose constant challenges in these confined waterways. The highly adaptable and effective system of barge navigation moves over 625 million tons of commodities annually, which includes coal, petroleum products, various other raw materials, food and farm products, chemicals, and manufactured goods (Reference Corps Navigation Data Center). inland navigation system consists of 8,200 miles of rivers maintained by the Corps of Engineers in 22 states, and includes 276 lock chambers with a total lift of 6,100 feet.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |