Name: Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD) (en Inglés)
Price: 25820.00 CLP
Availability: InStock
Author: Agriculture, U. S. Department of
ISBN: 9781500308872

portada Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD) (en Inglés)

Formato

Libro Físico

Editorial

Createspace Independent Publishing Platform

Autor

Agriculture, U. S. Department of

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

28.0 x 21.6 x 0.4 cm

Peso

0.20 kg.

ISBN13

9781500308872

Categorías

Tecnología: cuestiones generales

Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD) (en Inglés)

Agriculture, U. S. Department Of (Autor) · Createspace Independent Publishing Platform · Tapa Blanda

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Reseña del libro "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD) (en Inglés)"

The Watershed Boundary Dataset (WBD) is a compre- hensive aggregated collection of hydrologic unit data consis- tent with the national criteria for delineation and resolution. This document establishes Federal standards and procedures for creating the WBD as seamless and hierarchical hydrologic unit data, based on topographic and hydrologic features at a 1:24,000 scale in the United States, except for Alaska at 1:63,360 scale, and 1:25,000 scale in the Caribbean. The data within the WBD have been reviewed for certification through the 12-digit hydrologic unit for compliance with the criteria outlined in this document. Any edits to certified data will be reviewed against this standard prior to inclusion. Although not required as part of the framework WBD, the guidelines contain details for compiling and delineating the boundar- ies of two additional levels, the 14- and 16-digit hydrologic units, as well as the use of higher resolution base information to improve delineations. The guidelines presented herein are designed to enable local, regional, and national partners to delineate hydrologic units consistently and accurately. Such consistency improves watershed management through efficient sharing of information and resources and by ensuring that digital geographic data are usable with other related Geo- graphic Information System (GIS) data.