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1answer
75 views

When and where is the atmospheric greenhouse effect strongest?

Is the greenhouse effect stronger in the ice covered area or in the equator? Also is it stronger during winter or summer? I am thinking it is stronger in the Ice covered area and during winter because ...
0
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1answer
53 views

Are those balsalt? Found in volcanoic field [closed]

My father came back from a volcanoic field called Wudalianchi in China and bought back these rocks. Both of them are dark grey and black with many holes. They are harder than nails and glass. I'm ...
2
votes
1answer
52 views

If the accuracy of measurement of the earth's volume is not known, how can scientists assert that the earth is not expanding?

Volcanic eruptions, undersea earthquakes, fissures in the crust, meteoroid accumulation could all be seen as empirical evidence of expansion of the earth. Sink holes and other phenomena could be ...
1
vote
1answer
22 views

How to calculate or find the compressional stress wave velocity, Cp for a rock

In Cunningham's paper, "The Kuz-Ram fragmentation model - 20 years on", he makes mention of compressional stress wave velocity, Cp. He only comments that the Cp of granite = 5.2 km/s. I using a ...
6
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3answers
345 views

Do flights affect tides?

Can artificial satellite positions affect tides? on Space Exploration.SE asks if artificial satellites can affect tides, because they are a lot closer than our natural satellite, even though they are ...
1
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1answer
35 views

Do cloud formations change depending on the season?

I'm currently working on some software for cloud masking, and thus far I have only been using satellite data as recent as spring (northern hemisphere). However, I'm wondering if cloud coverage or ...
3
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0answers
34 views

Oscillating dew point throughout the year?

I was searching for the climate of Saudi Arabia and I noticed that the city of Abha (altitude of 7000 feet) has a "strange" behavior in its dew point, as numbeo suggests: https://www.numbeo.com/...
1
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0answers
16 views

A few questions about the morphology and sediment dynamics of Wissant Bay (France)

Could someone please explain what exactly is shown on the following image? I have a few questions such as: How did the 'Banc à la Ligne' come about? (I know it has something to do with the fact that ...
0
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0answers
20 views

Calculate GWP over arbitrary time

The GWP (Global warming potential) is calculated over a given time scale $T$ (20 or 100 years usually), defined as the ratio between the energy absorbed by a pulse of 1Kg of gas during time $T$ ...
3
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1answer
53 views

How and when was the $\mathsf{CO_2}$ scrubbed when Earth was still primordial?

How and when was the $\mathsf{CO_2}$ removed in primordial Earth atmosphere? What is the main mechanism of this removal of $\mathsf{CO_2}$? Is it dissolving in water? Or rock weathering? Or was the ...
0
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0answers
23 views

Do less trees equal less rain? [duplicate]

It is said the the Sahara desert was once a dense forest until it was cut. Do trees contribute to precipitation and less trees equal less rain locally?
0
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2answers
64 views

Light and violet stone from Poland [closed]

Can anyone identify what is this? I live in Poland so it might narrow the possibilities.
4
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1answer
63 views

What is the weather data covering the range of 359 to 360 degree

I downloaded a grib file of oceanography (Mean Wave Period) from ERA-Interim and the longitude values give the value at the points is 0,1, 2, 3....357, 358, 359 If I have geographical coordinates ...
0
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0answers
10 views

Hi, is there good reference this raw earthquake data to covert into PGA, PGV and etc?

Is there good reference or software that these earthquake raw data will transform into strong ground motion such PGA, PGV and PGD. Thank you!
5
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2answers
118 views

The seriousness of global warming/ climate change? [closed]

Why is such an emphasis placed on sea level rise?? As this can be devastating in itself, it can be looked at as a great economic opportunity to put people to work preparing our coastal areas for the ...
0
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0answers
59 views

Can we predict the rising temperature of Earth?

Where can I find a model of Earth's past climates and future projections from combined possibilities like magnetic pole movement and other forms of global warming as a map? Without a reference it has ...
2
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0answers
107 views

Green Rock Identification

This rock was found in the highlands of Scotland in the mountains.It is 2 1/2''x2 1/8''x 1'' it has a density of 2.95 leaves a clear streak weighs 130 grams and a hardness of 6 on Moh's scale.This ...
7
votes
2answers
106 views

Could the Grand Canyon be flooded by the ocean if it got deep enough?

The Colorado River has been carving the Grand Canyon for a few million years now, such that the canyon floor is around 6000 feet lower in elevation than the surrounding area, at about 2400 feet above ...
1
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0answers
75 views

Fluorescent pink stone left after dissolving rock [closed]

I found a regular old rock in northwest Missouri, Buchanan county, St Joseph, Mo in a creek bed in a glacier field. It looked like it may have something in it. I dissolved the (3 times larger) rock ...
1
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0answers
35 views

Finding vessel and wave's angle of attack [closed]

I am finding angle between ship's heading and component in wave (wave's angle of attack), not sure if ES is a right place to ask this type of question. Should it be the difference between mean wave ...
1
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0answers
48 views

Thermal likelihood formula

Background: I use the X-Plane flightsimulator for flying and gliding. In the program we have real weather (clouds, winds, etc...) but thermals are not well implemented, they don't have any connection ...
4
votes
1answer
118 views

Understood cause of sea level rise between 1850 and 1950

This question is based on the following graph from a 2018 report by J. Curry. (I haven't found any peer-review of the report itself so I can't vouch for the validity of its claims, but that's not the ...
2
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0answers
38 views

Why does Hong Kong have one of the best natural harbours in the world that can protect ships from the typhoon winds?

My question in this post's title is predicated on Reddit - Hong Kong was perfect for the British as a staging point from which to trade with China. This was because Hong Kong has one of the best ...
2
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0answers
38 views

Are there more meteorological catastrophic events due to climate change?

I was told by a sedimentologist there is no evidence of more climatic catastrophic events at the geological register previous to Pleistocene, when climate was warmer. My question is if meteorologists ...
1
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2answers
73 views

Effective Temperature of a Planet and Surface Temperature due to Greenhouse Effect

There is something I don't quite understand about the Greenhouse Effect and Effective Temperature, so please bear with me as I lay out what I do understand and where I begin to stumble. The effective ...
1
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1answer
51 views

Where I can find high-res public domain images of Countries or Continents on the web

I found this one of Africa: That one is nice because it's > 3000x3000px which is large enough. I have looked around a bit for ones of these countries but haven't found anything that is large/high ...
3
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1answer
82 views

Is there scientific evidence connecting the current climate in India with global warming?

Experts say up to 40 % of India might witness drought this year. Is there scientific evidence that this is due to the global warming and climate changes?
1
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2answers
78 views

Rock ID: Soft black rock from Skegness UK

I found this half submerged in Skegness beach, UK, on the sea front. Color: Black Lustre: Dull matte Texture: Very grainy Weight: 921 grams. Seems heavy Size: 6 x 4 inches or 120 x 150mm MOH scale: 2....
0
votes
2answers
81 views

Is this olivine? [on hold]

Could this small rock be olivine? It has got a rough feeling surface, and 'it's heavy. I found this in Wales 12 years ago.
3
votes
1answer
71 views

What happens when the North and South poles flip?

How long does it take the magnetic field to move once the poles start to flip? What environmentally would change? Does the core of the Earth flip? The magnetic poles are moving now. When will it ...
3
votes
2answers
90 views

If the sun disappeared, how long would it take for the earth to freeze beyond excavatable depths?

If the sun disappeared How long would it take for the earth to freeze beyond excavatable depths? How long until it freezes to the core? (is this different than without removing the sun?) Would we be ...
0
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3answers
60 views

What kind of red rock is this?

I don’t know much about were I live, I am from ny and only moved here a few years ago. I found it in Smithfield nc we’re I love with my dad and kids now.. I wish I had more information. Yes the rock ...
2
votes
1answer
58 views

Code for DEM based flow routing in R

I have a DEM as shown for which I have determined flow paths using D8 algorithm (My own code) in R. The resulting DEM with the flow paths is also shown. The flow paths are generated in the form of ...
2
votes
1answer
64 views

How does total pressure affect relative humidity and how do I correct my hygrometer for pressure?

Obviously pressurized air can hold more water than regular air, so an increase in overall pressure would result in an inversely proportional decrease in relative humidity. However, I can't seem to ...
1
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3answers
55 views

Pinkish rock with red 'veins'

I found this rock in Smithfield NC. It does scratch glass. A butter knife didn’t scratch it. When you hold it to a light it has an orange glow. It didn’t leave anything on porcelain.
0
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0answers
22 views

How does a change in the tilt of the Earth effect climate? [duplicate]

Could the Earth survive if the axis was less or more of the tilt of that what it is now, and by how much? How would the Earth act if the axis was pushed to an extreme tilt or lack there of?
3
votes
1answer
143 views

What is the synoptic/atmospheric setup that is causing the U.S. severe weather outbreak in May 2019?

I asked this in the chat and it was suggested I ask on the main site. There's been a seemingly perpetual severe weather outbreak over the central and eastern U.S. over the past two weeks. Killer EF3s ...
1
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2answers
47 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 ...
3
votes
2answers
28 views

Database of color wavelengths of minerals

I was wondering about the physics of color, and now am interested in finding out if there are any resources (databases, text files, html tables, or pdf listings) of minerals and their associated ...
0
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0answers
13 views

What is the minimum rain velocity that harms crops?

I,m trying to make a science project which will protect crops from heavy rainfall. I need to know the velocity that causes crops to lodge and other harms. The velocity varies for the size of the rain ...
0
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0answers
86 views

Milankovitch cycles and what?

Observe the vertical green lines in this diagram: Those events shows when temperature starts to sink when radiance is at top or even before that. If there was a simple connection between radiance and ...
0
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0answers
23 views

Identify my rock please (Ontario, Canada) [duplicate]

this rock found lying on top of ground, it has dull lustre and grey color. It is harder than my fingernail and somewhat heavy in its size(3cm x 4cm x 2cm) enter image description here
3
votes
1answer
56 views

Is there major potential for vertical farming?

You can take up way less square footage for the same amount of production You can eliminate the need for pesticides You can power the farms from renewable energy You can significantly increase growing ...
0
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0answers
39 views

How strong wind is needed for crop lodging?

I'm making a science project to protect the crops from wind lodging by placing some shields beside the field only when needed (wind have beneficial effects on crops). I want to use some sensors like ...
0
votes
1answer
40 views

Yearly changes of solar irradiation and atmospheric feedback

I think I understand the mechanism of water vapor feedback in climate change pretty well: a (theoretical) temperature increase due to some isolated factor (e.g. increase in $CO_2$ concentration) ...
-1
votes
1answer
44 views

A pipeline from the ocean to the desert causing a climate change for a drout in california a good idea? [duplicate]

If I already had a crew that built a pipe line in california from the ocean to the sahara how long would it take to wet the dry lands with rain water and what kind of weather or cliamate change would ...
3
votes
1answer
269 views

Is this rock Massive Epidote?

enter image description here This is a close up of outside of chipped off piece, and inside alsoI found this rock in Co. Donegal Ireland on a river bank buired under the dirt. It weighs 16.4lbs- 7....
7
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3answers
1k views

What is the most important source of natural gas? coal, oil or other?

By heat and pressure both coal and oil can produce gas. But what is the most important substance for gas? Is there a relation to the amounts of marine organism (sea life) wich died and the amount of ...
6
votes
1answer
71 views

What is brown carbon?

There is a lot of interest in brown carbon in the atmospheric science community these days. There is a paper in the journal, "Atmospheric Chemistry and Physics" titled, "Black carbon or brown carbon? ...
1
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2answers
61 views

Young researcher hoping to volunteer for Antarctica fieldwork

I am a postdoctoral scholar who is interested participating in Antarctica fieldwork/exploration as a volunteer. My background is in biology, but I am happy to participate in any fieldwork ...

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