Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [flooding]

The tag has no usage guidance.

0
votes
0answers
30 views

How much those new buildings contributed to flooding in the area?

In spring 2017 the area I live in was flooded, people who live here all their lives say it was the biggest raise of water they have seen, the river in the area overflows when the snow starts to melt, ...
1
vote
0answers
35 views

Flood and Statistics

A recent flood was due to combined effect of rainfall(precipitation) and reservoir storage. I have daily rainfall data and reservoir storage data. How can I correlate these two to get a statistical ...
5
votes
1answer
56 views

How can flood inundation vary at the same river stage?

I've always thought that river flooding would always be the same at the same river stage. For example, if the river stage is at 20' flooding at location "x" would always be at the same depth. ...
1
vote
0answers
31 views

Topography and flash flooding

I'm looking for a study or document showing the effect of the topography, slopes, the sea level and the tide on flash flooding occurrence. Thanks in advance
2
votes
1answer
192 views

How quickly do landslides occur? [closed]

When a landslide occurs, how long does the ordeal typically last? Obviously the answer is that they vary a lot, however, I'm talking about some specific examples such as the one in Sierra Leone in ...
2
votes
0answers
20 views

Real time flood data in the United States

I am trying to find real time information about flood events in the United States, ideally in polygon format. So far I have found two sources: USGS Flood Watch: Points where flood sensors are and ...
3
votes
1answer
68 views

Is it certain that hundred year floods have finite variance?

It just occurred to me to ask this. It's easy to get a statistical distribution that does not have finite variance. For example, you can sometimes get that when the thing that is measured comes from ...
9
votes
2answers
211 views

How was Venice flooded?

If I understand this correctly, Venice was not flooded due to sudden rainfall causing rivers to overflow, but due to the high tides. These high tides were caused by an alignment of sun, which was ...
7
votes
1answer
218 views

Who would know how to manage rainwater erosion on a sloped property?

I'm a meteorologist with little experience in hydrology. I'm studying my land with the rainwater flow patterns during heavy rain events and looking to manage the erosion, flash flooding, and ponding ...
4
votes
2answers
367 views

What was the storm surge height from Hurricane Harvey?

The numbers bandied about have been 3.6 m (12 feet) and even 4.6 m (15 feet), but something told me that was unlikely. As a guy who could "almost" slam dunk a basketball, the idea of a 3 m (10 feet) ...
0
votes
1answer
1k views

What is the difference between a flood and a mudslide?

Description Floods and mudslides are both occurrences, which can be very destructive. Question (Hopefully after the edit the question is more clear) What is the difference between a flood and a ...
3
votes
0answers
32 views

How can we estimate the amount of sediment that traveled downstream during the California flood?

It's amazing how much water traveled down the slopes of California during the first two months of rain/flooding of 2017. Since the amount of water was far greater than anything in recent history, ...
1
vote
2answers
59 views

Soil moisture conditions and air temperatures - literature needed

I am looking at basics academic papers which tell about the physical floods mechanisms. In particular something that says that: 'lower temperatures reduce evapotranspiration, enhancing wet soil ...
7
votes
1answer
92 views

Is there a quick way to roughly estimate how quickly a flood will move downstream?

At the time of this post, there was urgent danger of spillway failure at the Oroville Dam in California, with evacuations in place for hundreds of thousands, and even larger populations further ...
0
votes
2answers
118 views

Time of concentration - Difference between large and small basins

I am looking for any academic reference (i.e. articles) regarding the time of concentration for large and small basins. E.g. I would expect that a large basin (area > 1,500 km^2) will flood (or reach ...
5
votes
3answers
889 views

Could a massive flood have formed the Grand Canyon?

I believe that the accepted theory for how Arizona's Grand Canyon was formed was that erosion caused by the Colorado River flowing through the area over millions of years was the force at work. Yet ...
3
votes
1answer
65 views

Should I cut buildings from flood zone? [closed]

At work (at a local authority), I have a flood zone plan/layer that was created using ArcGIS software from an Elevation Model which has an accuracy of 1 metre. The zone covers an urban area. I cannot ...
2
votes
2answers
330 views

Is this scientific explanation of The Bible flood accurate?

I googled "the flood and freshwater fish" and came up with this question Christianity StackExchange: How did Noah preserve fresh water fish?. The writer makes a lot of claims like how the salinity of ...
5
votes
2answers
588 views

How deep would the nitrogen and oxygen ocean be if cooled to liquid?

If the atmosphere were cooled to liquid, say the planet's average atmospheric temperature were reduced to 70K, how deep (above sea level - frozen oceans of water) would the resulting ocean be?
4
votes
1answer
260 views

What is the purpose of this large structure on a Japanese hillside? [closed]

A Google satellite view shows an unusual structure on a hillside in Miyazaki Prefecture, Japan (Latitude 31.782600°N, Longitude 131.233881°E): It measures about 170m by 120m and is structured in ...
10
votes
1answer
217 views

What is the potential impact of hurricane intensification and sea level rise on coastal flooding?

Climate change has the potential to increase flooding by hurricane intensification (magnitude and intensity) and by sea level rise. Many communities around the world are already exposed to coastal ...
4
votes
1answer
490 views

What causes periodic floods?

I am trying to determine what could cause periodic flooding of the type that might generate a savannah or plain with low growing plants and grasses. Where does the water come from, and how or why is ...
24
votes
7answers
24k views

Is a complete global flood physically possible on Earth?

Genesis 7:11-20 presents an account of a precipitation event which, in 40 days, submerges the entire surface of the earth: [On] the seventeenth day of the second month — on that day all the ...