Instructions to Special River Observers of the Signal Service (Classic Reprint) - Hardcover

Inhaltsangabe

Excerpt from Instructions to Special River Observers of the Signal Service

The Signal Service has had in operation for many years a system of observations and reports of the stage of Water in the principal rivers of the United States, by which the water level is reported daily to certain designated centers, and during hours of danger from floods, or extremely high water, these observations are taken and telegraphed as often as is considered necessary for the public inter ests.

In the absence of floods, river commerce demands a knowledge of the volume of water in the tributaries of the principal rivers, to per mit a determination of the future supply for purposes of navigation at points where the depth is sometimes insufficient.

To meet these several demands the Chief Signal Officer is charged by law with the duty of establishing special stations at suitable points on the rivers included in the system.

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