Watershed Boundary Dataset Concepts

The video tutorial on the Watershed Boundary Dataset (WBD) covers its structure, organization, and role in the national hydrography data collection. It explains the hierarchical system of hydrologic units, the features and maintenance of the dataset, and the development and integration efforts with other datasets. The tutorial also highlights cross-border harmonization with Canada and Mexico, and provides information on accessing WBD data through various resources.

What is the primary purpose of the Watershed Boundary Dataset (WBD)?

• To track weather patterns

• To map underground water sources

• To organize surface water features

• To define political boundaries

How are the largest hydrologic units in the WBD identified?

• By a two-digit code

• By a name only

• By a color code

• By a geographic coordinate

What is the smallest required hydrologic unit code in the WBD?

• 10-digit code

• 8-digit code

• 14-digit code

• 12-digit code

Which organizations were involved in the development of the WBD?

• CDC and FDA

• FBI and CIA

• USGS and EPA

• NASA and NOAA

What is the role of a WBD Principal Steward?

• To enforce environmental laws

• To manage political boundaries

• To oversee local water quality

• To coordinate WBD data editing

What is the main goal of the cross-border harmonization efforts between the U.S. and Canada?

• To create new political boundaries

• To develop seamless hydrographic data

• To establish new trade agreements

• To monitor wildlife migration

Which phase involves the development of harmonized hydrography between the U.S. and Canada?

• Phase 3

• Phase 2

• Phase 4

• Phase 1

How can WBD data be accessed for use in GIS software?

• Only through physical maps

• By downloading from the USGS FTP site

• By purchasing from a private vendor

• By requesting from local government offices

What additional option does WBD offer for accessing data besides online mapping services and downloads?

• Printed maps

• Packaged with hydrography data

• Satellite imagery

• Weather forecasts

What is the relationship between WBD and the National Hydrography Dataset (NHD)?

• WBD is a companion dataset to NHD

• They are unrelated datasets

• They are competing datasets

• NHD is a subset of WBD