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Rain and Flooding
Rain is a type of precipitation which is readily absorbed by the ground. However, flooding might occur if there is a downpour or heavy rain. Flooding can result in damage to property, illness and even death.
10,606 Questions
Where and how should rain gauge be placed to ensure accurate rainfall can be collected and measured?
A rain gauge needs to be positioned out of the shelter of houses and away from trees. Ideally, it should be placed on a post in the middle of a garden, where there are no trees or tall bushes nearby.
What instruments do you use to predict the rain?
Meteorologists use various instruments to predict rain, including weather radar to detect precipitation, satellites to monitor cloud formation, and weather balloons to measure atmospheric conditions. Additionally, weather models that simulate the atmosphere's behavior are also used in conjunction with these instruments to forecast rain.
What are the advantages of diversionary spillways?
Diversionary spillways can help prevent flooding by diverting excess water away from the main dam or structure. They can also reduce the risk of overtopping and potential dam failure during periods of high flow. Additionally, diversionary spillways can provide increased operational flexibility for managing water levels and flows.
What happens to precipitation that reaches earth's surface?
It either accumulates as snow and ice in the colder parts of the planet, can soak into the ground or run off the surface as rivers in the warmer parts of the planet. The water at the Earth's surface is constantly being circulated in the biosphere of the planet in what is known as the hydrological cycle.
Why does one inch in an offical rain gauge actually measure only one tenth of an inch of rain?
This is because the opening of the rain gauge is designed to amplify the rainfall. By having a wider opening at the top that funnels into a narrower measuring tube, the rain gauge effectively magnifies the amount of rainfall collected. This design allows for more accurate measurements of smaller amounts of rainfall.
Sleet occurs when rain droplets fall through a layer of freezing air close to the ground, causing them to freeze into ice pellets before reaching the surface.
What southern city has moderate rainfall?
Savannah, Georgia typically has moderate rainfall, with an average of around 50 inches per year.
How does el nino affect the foodchain?
El Niño can disrupt the food chain by causing ocean temperatures to rise, which affects the distribution and abundance of marine species. This can lead to changes in the availability of food for predators, impacting their survival and reproduction. Shifts in nutrient availability and productivity can also impact lower trophic levels of the food chain.
How does el nino affect weather in Michigan?
El Niño in Michigan typically brings warmer and wetter conditions, resulting in milder winters with less snowfall and potentially more precipitation during the spring and summer. This can lead to an increase in flooding and storm events in the region.
What are 'El Niño' and 'La Niña'?
They are both sets of weather patterns.
El Niño is a weather phenomena which tends to occur in tropical waters of the Pacific Ocean. It affects the region across the Pacific from New Guinea to South America, known as the Equatorial Pacific. During an El Niño season, which occurs on average every 2-7 years, a shift in ocean currents and winds brings warm water towards the eastern Pacific, displacing the usual cold water that comes up from the ocean depths. As well as affecting marine life, the El Niño has an effect on weather patterns.
Under normal conditions, in the tropics warm oceans tend to be accompanied by heavy rains, resulting in heavy rains in the warm west Pacific while the cooler east Pacific receives far less rainfall. This is reversed during an El Niño, when the ocean temperature gradient from one side of the Pacific to the other weakens. Warmer than usual eastern ocean temperatures cause droughts in the west, while the unusually warm eastern waters bring heavy rains and floods to the Pacific coast of South America, which is usually much drier.
It's all a matter of interactions between the oceans and the atmosphere. Changes in sea surface temperatures causes a shift in air pressure which, in turn, can result in climatic anomalies, such as severe droughts, flooding and even cyclones. One of the effects is that the normal circulation patterns over the Pacific are disrupted, and moisture-bearing trade winds weaken, whilst drier westerlies increase.
El Niño has a number of effects, beyond causing droughts and floods on opposite sides of the Pacific. It causes die-offs of plankton and fish and affects Pacific jet stream winds, altering storm tracks and creating unusual weather patterns in various parts of the world. Scientific investigations of this phenomenon are ongoing, and it is yet to be determined whether El Niño is oceanic or atmospheric.
La Niña is the opposite to El Nino. It involves cooler than normal sea temperatures in the eastern part of the Pacific Ocean. This means that weather conditions, etc, are in reverse to those seen during El Niño.
Both phenomena are phases of warming and cooling in the Tropical Pacific Ocean. They cycle through after a period of years - the number is not precise and can range considerably compared to other phenomena like this - and usually have some warning signs the year before a change.
The names are derived from Spanish: El Nino is spanish for "boy" and La Nina is spanish for "girl".
Depending on the prevailing weather patterns, each is (respectively) a warmer than usual or colder than usual local ocean current off the western coast of South America.
How does the solar energy affect oceans and atmosphere movement?
Solar energy is the driving force of weather on Earth. In the "water cycle", the sun is responsible for evaporation of ocean surface water. As this happens, the water vapor rises. The combination of the Earth's rotation and the changes in atmospheric pressure is the primary determinant for when and where the rain comes down.
Is gravity important to the water cycle?
Yes, gravity plays a crucial role in the water cycle by pulling water down through precipitation, runoff, and groundwater flow. Without gravity, water would not be able to cycle through the atmosphere and Earth's surface as it does.
Where does the northeast and southwest monsoon come from before entering the Philippines?
The northeast monsoon originates from Siberia, Russia, while the southwest monsoon comes from the Indian Ocean. These wind patterns bring moisture and rain to the Philippines during different times of the year.
El Niño can lead to drier than normal conditions in parts of Asia, such as Australia, Indonesia, and the Philippines. It can also cause disruptions in weather patterns, leading to impacts on agriculture, water availability, and even an increase in tropical cyclone activity in some regions of Asia.
Why leh has moderate precipitation almost throughout the year?
it's because of it's lattitudinal location and just as importantly, bacause it's in the rain shadow region of the enormous himalayan range. the mountains block the passage of rain-producing weather systems...
Why are sediments deposited in an alluvial fan?
Alluvial fans form where water moving fast (a high energy state) and therefore carrying a lot of sediment of various sizes suddenly slows down (a low energy state) and therefore dumps most of the load it is carrying.
They therefore develop where streams issue from canyons onto an adjacent valley floors.
How would you explain heavy rain falls over a long period of time?
Heavy rain falls over a long period of time when a persistent weather system continuously brings moist air and triggers widespread precipitation. This can lead to flooding, erosion, and waterlogging due to the prolonged and intense rainfall. The impacts can vary depending on the region and topography.
How does convectional rainfall relief rainfall and frontal rainfall occur?
Convectional rainfall occurs when warm air rises, cools, and condenses to form rain clouds. Relief rainfall occurs when moist air is forced to rise over elevated terrain and cool, leading to precipitation. Frontal rainfall occurs when two air masses with different temperatures and moisture content meet, causing the warmer air to rise and condense, resulting in rainfall.
Why does the southwest monsoon bring much more rain than the northeast monsoon?
This is because south west monsoon has more moisture i.e more amount of water vapors (as it's direction is from sea to land) while north east monsoon is from land to sea and therefore has little moisture
Average rainfall of the temperate zone?
The temperate zone receives less than 30 inches of rain each year. This is the average even with the extreme thunderstorms, snowfall, and other types of major storms that are known in the area.
Does warm less dense air create high pressure zones?
No, warm air is less dense and rises, creating low pressure zones. Cold, denser air sinks and creates high pressure zones. This movement of air creates wind as the atmosphere tries to balance the pressure differences.
How did the Thailand flood start?
Discord, the god of chaos, sent down massive amounts of rain. Luckily, six great ponies managed to save Thailand by finding the elements of harmony. These elements were: Honesty, Generosity, Kindness, Loyalty, Laughter and Magic. All together they made a powerful force to make everything better and stop Discord.
What might show evidence of a year with low rainfall?
Evidence of a year with low rainfall could include dried-up vegetation, decreased water levels in rivers and lakes, increased wildfires due to dry conditions, and reduced agricultural yields leading to crop failures.
What might happen if the cycle were broken and used water could not return to the water cycle?
If used water could not return to the water cycle, it would lead to water scarcity and a decline in freshwater availability. This could result in ecological imbalances, reduced agricultural productivity, and negative impacts on human health and economies. It is crucial for used water to be treated and recycled back into the water cycle to ensure sustainability.
you might be familiar with the bible story of noahs ark the one who grabs two of every anomal sticks them in a boat for forty days and forty nightswhile the whole earth is flooded yardy yardy yardy well they say that its gods promise to never flood the world again.
