Questions tagged [rain]

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3
votes
1answer
60 views

Rain Water vs Sprinkler Irrigation

During the rainy season, the crops like corn, cotton are found to be growing faster. Studies shows that the thermoelectric fixation of gaseous Nitrogen during rain storm accelerates the plants growth ...
2
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2answers
109 views

Conditions of Thunderstorms

Why do some heavy rainstorms and hailstorms not produce any lightning or thunder at all when I thought that these conditions of heavy rain and hail are right to bring lightning and thunder but don’t ...
1
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0answers
27 views

Thunderstorms in the Great Smoky Mountains [duplicate]

What time of the year does it rain the least in the Great Smoky Mountains National Park and what month gets the least amount of thunderstorms
2
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2answers
79 views

Temperate Rainforests

I have heard that the Appalachian Mountains is qualified as a temperate rainforest. What qualifies a temperate rainforest and what makes the Appalachian Mountains a temperate rainforest?
1
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1answer
52 views

Thunderstorms vs Thundershowers

What is the difference when the weather report says thunderstorms vs when it says thundershowers and the picture is still the same?
0
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0answers
73 views

Are These Tropical Forests Burning in Brazil and Elsewhere Really Rainforests?

I know from many years of personal experience in the Malaysian rainforest (Sarawak, Sabah and Peninsular Malaya) that it is not inflammable. Dayaks and aborigines cultivate small patches of shifting ...
2
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4answers
285 views

What is the difference between dew and rain?

What is the main difference between dew and rain? Would it be correct if we say that rain is done in the upper troposphere while dew done in the lower troposphere? Or there are better definitions for ...
1
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2answers
59 views

Chloride ions for the salty seawater

Where does the chloride ions that are required for the salty taste of sea water come from ? I know that it is the weathering caused by the slightly acidic (due to dissolution of CO2 with water) rain ...
0
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2answers
81 views

Is there a way to approximate the density of air during rain?

Given a rate of precipitation (in mm^3/hour), and average droplet diameter, is is it possible to calculate (or even ballpark) the density of the air+rain droplets at time of rainfall? What I mean is, ...
0
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0answers
85 views

Can airplanes trigger rain?

A lady was telling me that the lower clouds were contrails left from plane exhausts. I looked up and there were none I could see in the sky she pointed to Stratocumulus Clouds. I did not want to tell ...
10
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1answer
144 views

Rainbow dynamics?

How would steam refract light compared to fog and how would the rainbow appear? Does the temperature of the water drop or ice crystal effect the rainbow in any way? I know the size of the water drop ...
6
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2answers
128 views

Is pollution a contributing factor to freezing rain?

I have been to different places with nearly the same freezing temperatures, around -2°C, but only at some specific places I repetitively experienced freezing rain. One common factor at these places ...
0
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2answers
272 views

What happens if it rains above the boiling point of water?

The freezing point of water is 32°F. If it rains at a temperature lower than that, it will snow. However, let's say we dig a deep hole not filled with water that goes like 10,000 feet below sea level. ...
6
votes
1answer
169 views

Why is there no desert in Southeast China?

Arabia, Sahara and Southeast China and India all are on the tropic of Cancer yet Southeast China and India are not deserts. I know that India is not a desert because of monsoon wind which causes heavy ...
9
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2answers
1k views

Why do rivers sometimes travel down the opposite side of the mountains from where the rain happens?

My teacher explained that when wind coming from the ocean gets blocked by a mountain it makes rain on one side of the mountain, like in the image below. This rain leads to the creation of rivers. (...
35
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9answers
44k views

What does a mm of rain mean?

Lots of people have explained it over many sites but I still can not confidently say that I know what it means when they say Hong Kong experienced 3mm of rainfall last Friday. Does it mean that 3mm ...
4
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0answers
40 views

What are typical ranges of rainfall drop sizes, speeds, and areal or volume densities?

I'd like to look into the possibility of using a Raspberry Pi and the PiCam module to detect rain, and to try to make some measurements of droplet size and rate. This could be done using an LED flash ...
11
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1answer
1k views

How to tell the difference between real rain and fake rain (cloud seeding)?

I live in a city where the pollution is bad, so bad that sometimes we get 'fake' rain (from cloud seeding). This may last for an extended period. There have been times before when it has “rained” and ...
2
votes
0answers
143 views

Why are all rainbows are not the same? [closed]

How does these rainbows water drops differ? I know it has to do with the size of water drops refracting light. Is there a formula that determines the type of rainbow? Icebow Unlike this questions ...
3
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5answers
753 views

How is Doppler radar used in rain prediction?

How is Doppler radar used in rain prediction?
5
votes
1answer
105 views

Why is thunder and lightning rare, even though it rains frequently?

Why in some places (for example Dublin, Ireland) the thunder and lightning is such a rare thing even though it rains so frequently?
2
votes
1answer
102 views

National Weather Service “average daily/yearly” (temp, rainfall) life cycle?

Does anyone know the "life-cycle" of the averages used for daily and yearly temperatures and rainfall by the National Weather Service? I have lived in the same (semi-desert) area for over 40 yrs, and ...
2
votes
1answer
4k views

Why does it rain during the sunny day?

What are factors that cause rainfall while the sun is still shining. The phenomena is known as sunshower? The information I found so far is very limited. Please help me answer this question if you ...
2
votes
1answer
136 views

Reason for rotting smell after first rain of the season?

Last day we had first rain after 3-4 months of hot&dry weather, and within 3-4 minutes a rotting smell came from nowhere. Due this smell I had running nose for a day. What might be the reason for ...
5
votes
1answer
3k views

What would the pH of rainwater be if carbon dioxide in the atmosphere doubled?

Natural rain water is slightly acidic (pH = 5.6) since there is carbon dioxide in the atmosphere that dissolves to make carbonic acid. What would be the pH of rainwater if carbon dioxide in the ...
4
votes
1answer
500 views

What is a pre-monsoon shower? Is there any distinguishing feature between monsoon and pre-monsoon showers?

While attending a lecture about monsoon, our professor mentioned about pre-monsoon showers. However, he never bothered to explain it. So, what is a pre-monsoon shower and what are its distinguishing ...
3
votes
1answer
922 views

By how much can rain temperature vary from the ground-level air temperature?

I'm guessing that falling rain equilibrates fairly quickly to the temperature of the air it's falling through. However, it isn't always at the exact same temperature, which is why we can get the ...
4
votes
1answer
106 views

How effective is seeding rainclouds? What are the indications for initiating seeding?

I've heard that dry ice, iodides have been used as seeding agents to induce rainfall. Is this technique really being used widely? What are the prerequisites for initiating seeding? Is it as bounteous ...
17
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3answers
4k views

Does rain (temporarily) deplete the surrounding atmosphere of carbon dioxide?

CO2 in the air dissolves into rain water, making them slightly acidic. Is that enough to deplete the surrounding air out of CO2? If yes, how fast does this occur? Is it only with the first drops of ...
8
votes
2answers
1k views

How accurate is a tipping-bucket rain gauge?

My question is simple - how accurate is a tipping-bucket rain gauge? I have read about what causes the errors (wind, bucket mechanics for extreme events, ...) and I know the accuracy is strictly ...
6
votes
1answer
174 views

What is the significance of the “super historic” rainfall for July 2015 in southern California?

On July 19, 2015 there was record rainfall over the Los Angeles and San Diego areas. This is amidst a historic drought and the rain is needed. This article: http://www.weather.com/storms/hurricane/...