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NHD Technical Reference Archive

• NHDinARC QuickStart          HTML 17k | PDF 145k
  The "NHDinARC QuickStart" is a condensed and highly informative reference document for the NHDinARC data model. The document defines important components of the data model, while addressing basic questions about the dataset.
• NHDinARC Schema - Diagram of the tables, the table items, the item definitions, and the relationships between the tables in the NHDinARC data model. (74k)
  • Microsoft PowerPoint format (61k)
  • Adobe PDF format (76k)
• Introducing the NHDinARC PDF 289k
  Introducing the NHDinARC is a document that describes a common distribution format for the National Hydrography Dataset known as the NHDinARC format. Among the topics discussed within this document are a description of the NHDinARC data model and ARC/INFO elements used within the NHDinARC. The NHDinARC Schema, below, is a companion graphic to the "Introducing the NHDinARC".