How much rainwater can you collect from a roof?

2. Every square foot of roof space collects . 6 gallons of water in a 1 inch rainfall.

Many householders set up rain barrels to catch the water as it drips from the roof, reducing runoff and erosion while preserving water for garden use. Most homes direct water into the barrel with gutters and downspouts, but even homes without gutters can use a rain barrel.

The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. Rainwater collection systems can be as simple as collecting rain in a rain barrel or as elaborate as harvesting rainwater into large cisterns to supply your entire household demand.

2 inches

Consequently, a rainfall of 1 inch over 1acre of ground would mean 27,143 gallons of water.

Instruments. The standard instrument for the measurement of rainfall is the 203mm (8 inch) rain gauge. This is essentially a circular funnel with a diameter of 203mm which collects the rain into a graduated and calibrated cylinder. The measuring cylinder can record up to 25mm of precipitation.

Rainwise tipping bucket rain gauges have an accuracy rating of 2% at 1.

Making a Rain Gauge

1. Cut the top section off a clear bottle as shown. …
2. Place several small rocks in the bottom (for weight), then fill the bottle with water to the 0 mark. …
3. Invert the top of the bottle into to rain gauge to act as a funnel. …
4. Wait for the next rain and observe and record rainfall amounts.

What To Do

1. Use the scissors (and adult supervision) to cut the top off of the water bottle.
2. Pour gravel or pebbles into the base of the bottle. …
3. Add water until you can just see it at the top of the pebbles. …
4. Tape a line of masking tape up vertically along the outside of the water bottle.

2 feet off the ground. In developed areas place the gauge top approx. 5 feet off the ground. Bevel the top of the post to reduce rain splashing into the gauge.

80ft

The purpose of the grid is to reduce wind turbulence around the gauge and rain splash into the gauge. … In high rainfall and poor drainage areas some arrangement has to be made to prevent the pit from flooding during heavy rain or snow melt as this could cause damage to the electronics of the gauge.

It is an instrument used for determining the depth of precipitation that occurs over a unit area. Thus, it measures rainfall. … For the measurement of rainfall, the rain gauze should be placed 30 cm above the ground to prevent the splashing of rainwater.

The three major types of rain gauges are the standard gauge, tipping bucket gauge and weighing gauge.

Rain gauge is a meteorological instrument for determining the depth of precipitation (usually in mm) that occurs over a unit area (usually one metre square) and thus measuring rainfall amount. One millimetre of measured precipitation is the equivalent to one litre of rainfall per metre square.

To assure an accurate reading, the rain gauge should be placed in an open area away from trees, the house, and other outbuildings. Position the rain gauge twice as far away as the height of a tree or other object and be sure to empty it after every rain shower.

New transplants, young seedlings or newly-seeded beds will initially need water up to twice a day to keep the soil from crusting over and to allow the roots time to grow. Gradually work toward that 3 times per week schedule. Always factor in the rain. Skip the irrigation if you get 1/3-inch of rain.

A rain gauge is an important tool to help monitor global weather patterns, aid farmers dealing with drought and help meteorologists prepare for natural disasters.

1 foot

spring

The time it takes for surface infiltration to reach an aquifer as deep as 400 feet may take hours, days, or even years, depending on the rate of recharge. In some of the flood-irrigated areas, groundwater levels in nearby domestic wells rise within a few hours to days of flood-up.

While our planet as a whole may never run out of water, it’s important to remember that clean freshwater is not always available where and when humans need it. In fact, half of the world’s freshwater can be found in only six countries. More than a billion people live without enough safe, clean water.