from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A shower or fall of rain.
- n. The quantity of water, expressed in inches, precipitated as rain, snow, hail, or sleet in a specified area and time interval.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the amount of rain that falls on a single occasion
from the GNU version of the Collaborative International Dictionary of English
- n. A fall or descent of rain; the water, or amount of water, that falls in rain.
from The Century Dictionary and Cyclopedia
- n. A falling of rain; a shower.
- n. The precipitation of water from clouds; the water, or the amount of water, coming down as rain. The rainfall is measured by means of the pluviometer or rain-gage. The average rainfall of a district includes the snow, if any, reduced to its equivalent in water.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. water falling in drops from vapor condensed in the atmosphere
As the IPCC report made clear, many of the models disagree even on the sign of the change in rainfall over much of the globe, especially for winter projections.
(In truth, their annual rainfall is closer to half the amount we received this week alone.)
The most obvious place to get water if not from rainfall is from the Earth's surface -- rivers, streams, and lakes.
But the rainfall is variable: approximately every four years El Niño creates a major warm water flow during this season, bringing heavy rainfall, and in 1982 and 1997-8 this warm downpour caused great loss of marine dependent sea birds and marine iguanas.
The mean annual rainfall is about 1,900 millimeters (mm) with wide variation.
I know that rainfall is normally measured using a linear dimension.
Much like California screams drought in any year when the rainfall is below normal
Much like California screams drought in any year when the rainfall is below normal, the environmental activist have learned to scream global climate change when the weather differs from the average.
The Corps strives to keep the water in the lake below 15.5 feet, especially during the summer when rainfall is heaviest and hurricanes compound the danger.
From both the models and the marine sediment cores, it appears that the Sahara flips readily between a ‘green’ state and the desert state, and it only takes a small increase in rainfall to reach this tipping point.