The dam and reservoir are the centerpiece of the Hetch Hetchy Project, which in 1934 began to deliver water 167 miles (269 km) west to San Francisco and its client municipalities in the greater San Francisco Bay Area.
intr.v. dapped, dapÂ·ping, daps. 1  1. To fish by letting a baited hook fall gently onto the water. 2  2. To dip lightly or quickly into water, as a bird does. 3  3. To skip or bounce, especially over the surface of water.
From Wikipedia, the free encyclopedia. Dilution of precision (DOP), or geometric dilution of precision (GDOP), is a term used in satellite navigation and geomatics engineering to specify the additional multiplicative effect of navigation satellite geometry on positional measurement precision.nderstanding the Geometric Dilution of Precision (GDOP) with a simple example. In A someone has measured the distance to two landmarks, and plotted their point as the intersection of two circles with the measured radius.