Questions tagged [water]

For questions relating to the liquid phase of water (H₂O), specifically its structure, properties, and uses in meteorology and Earth Science.

34 questions with no upvoted or accepted answers
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11
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0answers
138 views

Using sodium chloride load as a point source pollutant variable in SWAT model?

I'm currently working with the Soil & Water Assessment Tool (SWAT). My task is to model the loading of sodium chloride into streams. One approach I would like to take is to use the point ...
6
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0answers
105 views

How does fog affect the conductivity/breakdown voltage of air?

Could the breakdown voltage of air significantly go down in very foggy weather (especially very salty fog from seawater)? Kind of a hypothetical question, but if anyone has something on this, I'd ...
5
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0answers
41 views

Is there a study relating water table to construction/RCC activity?

Background: The soil in our locality is/was Black Cotton Soil - mostly from weathered humus over the years. Our locality was also mostly large (by Indian standards) plots mostly with load-bearing ...
5
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0answers
153 views

Freshwater changes in time?

Taking freshwater as being: Fresh water is naturally occurring water on the Earth's surface in ice sheets, ice caps, glaciers, icebergs, bogs, ponds, lakes, rivers and streams, and underground as ...
4
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2answers
121 views

Could saltwater be useful for greening deserts and sequestering CO2?

Desert greening is the conversion of deserts into moister environments with more vegetation. This could be used to combat desertification and (by sequestering CO2) climate change, and also to increase ...
4
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0answers
88 views

Are there places with water hardness between 30 dGH and 50 dGH?

In the manual of my new dishwasher there is a table of values of water hardness. It goes until 50 dGH (degrees of general hardness) which corresponds to 9,0 mmol/l in the same table. From wikipedia: ...
4
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0answers
63 views

How is the vertical distribution of water vapor changing?

In this publication about data assimilation and observations (paywall alert) in the chapter General Concepts in Meteorology and Dynamics (by Andrew Charlton-Perez, William Lahoz, Richard Swinbank, ...
4
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0answers
319 views

Is there a software or means that can generate piper diagrams without some data?

I have cation and anion water chemistry data for some samples and I intend(ed) to generate piper diagrams for the same. However, data for some parameters was not obtained during the determinations of ...
3
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0answers
84 views

What is the maximum size that a drop of rainwater can reach?

This USGS article: "Raindrops are Different Sizes" assures: We can call the growing droplet a raindrop as soon as it reaches the size of 0.5mm in diameter or bigger. If it gets any larger ...
3
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0answers
84 views

Did the Three Gorges Dam shift the North Pole by 2 cm?

Numerous sources repeat that, apart from slowing down the rotation of the globe, the Three Gorges Dam caused the geographic pole to shift by 2 cm. For example: https://blog.prv-engineering.co.uk/...
3
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0answers
74 views

Endogenous Theories For the Origin of Earth's Water (Dry/Wet Accretion?)

I have really two questions: (1) what evidence is there in favour that the majority of Earth's water formed with the planet. (2) what evidence is there that the majority of water did not form with ...
3
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0answers
64 views

What does the motion of water in tsunamis look like?

This is what normal wave motion looks like. Do tsunamis that travel at 60mph look any different?
3
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0answers
760 views

How much ocean water is currently being displaced by ships?

According to Statista, as of January 2017, there are approximately 52,000 ships currently operating in the merchant fleet and 11,000 of these are considered bulk carriers. How many ships are there ...
3
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0answers
66 views

Reason for higher content of Iodine and Copper than Iron in Seawater?

Does mineral weight contribute to the prevalence of minerals in seawater? Why is there five times more copper in seawater than Iron? Why is there 4000 times more strontium in seawather than Iron, ...
3
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0answers
370 views

Soluble reactive phosphorus or Dissolved Inorganic Phosphorus?

Why is dissolved inorganic phosphorus called soluble reactive phosphorus (SRP) instead of dissolved inorganic phosphorus (DIP)? Seems to me that DIP would be much more clear. See e.g. General ...
3
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0answers
68 views

Are the Great Lakes Getting Cleaner, or worse?

I live in Hamilton Ontario which a major city right on the shore of Lake Ontario, and I was just doing some personal research on the pollution levels in lake Ontario. Generally the water here has a ...
3
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0answers
64 views

How to integrate dry wells into groundwater level mapping automatically (inequality constraints on the interpolation)?

I'm interested in automating spatial interpolation of groundwater level measurements. I'm wondering if anyone knows a method for automatically taking into account things like dry wells, where I can't ...
2
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0answers
26 views

Water flows under the headwater and soil liquefaction has formed

A retaining wall 40 cm thick with variable height (thin-walled corner) is being built in the mountainous area. At the time of the geotechnical survey and design, there was no reservoir next to the ...
2
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0answers
32 views

What is the environmental effect of personal protective equipment on the ocean?

What is the environmental impact of masks and other personal protective equipment polluting the oceans? The world is using billions of masks and gloves due to the COVID pandemic and they are being ...
2
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0answers
37 views

As small streams freeze solid, how can big rivers continue to carry water?

In areas of very cold temperatures (-20°C and below), it is not uncommon for small streams to freeze completely (as in, from top to bottom) and larger rivers to develop thick ice covers. However, ...
2
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0answers
190 views

Is there an approximate rate for water temperature by depth that could be modeled simply?

I know that there are a couple of questions covering latitude and longitude for water temperature, but overall I'm more interested in the rate of temperature change by depth. Thought Process: ...
2
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0answers
48 views

Thermal spring. Gas and water characterization

I am interested in assessing a thermal spring in the Ecuadorian Andes. However I have no experience in these type of geological features and I am not sure how to proceed. The spring is located over ...
2
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0answers
37 views

Is there a way to calculate difference initial water content, from curve number method?

I want to calculate difference between initial water content of a soil given that its saturation water content can be found from its type. Is there a way to find initial water content of that soil ...
2
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0answers
32 views

Averaging watershed areas

If I am looking at different USGS stream gages, calculating their 90th percentile streamflow, and then doing a weighted average of the 90th percentile of the streamflows using the watershed areas - ...
2
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2answers
105 views

Why has the Earth's average sea level risen 'only' by nine inches after one degree C increase in temperature?

I am only doing gross calculations here, but... If the Earth has warmed by about one degree Celsius in the last century or so, and the thermal expansion coefficient of water is about .0002085, then ...
1
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0answers
14 views

How to Distribute Soil moisture output of Thornthwaite and Mather (1954) Soil Water Balance Model into different layers?

in Thornthwaite & Mather (1954) Soil Water Balance Approach The soil moisture output is generated for the whole soil profile, i.e whatever depth we take for the ...
1
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0answers
35 views

DSWI brief description

What is the brief description of Disease Stress Water Index (DSWI)? According to the link, it has been defined as to detect water-stressed crops at a canopy level. I am looking for a bit more ...
1
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0answers
24 views

Discharge waste water - content allowed, most strict, universal rule set

Where can I find non-country specific, general or most strict set of rules that would pass in most countries, about allowed content of waste water that is allowed to be released into the environment, ...
1
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0answers
31 views

Environmenal flow in the context of global gridded hydrological analyses

Environmental flow (EF) is a widely used concept in river basin management and river ecology. There are more than 200 methods to estimate the flow that should be left to the rivers to ensure a ...
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19 views

Does outgassing change the isotopic D/H ratio?

It is known that the D/H-ratio of Earth's water inventory is very similar to that of asteroids. This is usually interpreted in a way that Earth's water must have come from similar, asteroid-like ...
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0answers
63 views

Easiest way to find the water table under my feet

I had burnt my finger by digging an empty well and spending my hard-earned money in vain. I then started to study about the resistivity method for finding underground details. But I have many doubts ...
1
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0answers
38 views

Watershed scale water quality indices

I understand water quality indices play a fundamental role in modelling water quality as they integrate multiple water quality parameters to bring about a single dimensionless digit that represents ...
1
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0answers
48 views

Weathering of silicates

I am trying to find a relationship between the silicate-rich rocks weathering products. For example I've found information regarding gabbro weathering in which, according the consulted source, in 100 ...
1
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0answers
40 views

is the low-compressibility of seawater responsible for its bouyancy?

I'm trying to wrap my head around water's density, low-compressibillity and bouyancy. Are all these 3 things related, if so, how? I'm particularly interested if water's low compresibillity of ...