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0
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0answers
17 views

Inclusion of color bar [migrated]

I want to include color bar for my plot. I have done the plot using the following code: ...
0
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1answer
49 views

What would a graph of magnitude >7.5 earthquakes over last 400 years compared to Grand Solar Minimums look like?

I am a novice here and I really appreciate the graph of magnitude >7 earthquakes related to 11(22)yr solar minimum cycles. I was wondering what the correlation would be (if any) if we changed the ...
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0answers
40 views

Does the Earth 'Flare' like the Sun does?

Solar Flares are a commonly discussed phenomenon, which have effects ranging from geomagnetic storms to radio disruptions to absolutely nothing noticeable. Given that part of the core of the Earth ...
3
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1answer
18 views

Calculating a cloud cover index based on comparison of horizontal and tilted irradiance from pyranometers

I have data from 2 pyranometers, one in the horizontal plane and one in a tilted plane. The relevance of the tilting relates to their useage in solar-power plants whereby the tilt is in the same plane ...
8
votes
2answers
161 views

What are the sunniest places on Earth? (including oceans)

This question did arise when thinking on offshore solar power plants, what's their potential, and how efficient would they be compared with land based counterparts. Recently, it is becoming more ...
-4
votes
1answer
704 views

Is there any correlation between Grand Solar Minimums (GSM) and earthquakes? [closed]

I've found many claims arguing that the periods of minimum solar activity are associated with increases earthquakes and volcanic activities. Some of these claims are supported by articles in ...
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0answers
58 views

Mass balance for calculating mantle composition

I've seen some problem sets given without answers / solutions regarding how to calculate the composition of the mantle given solar composition (and assuming the same would apply to the Earth). For ...
5
votes
1answer
72 views

Could we cool the ocean by reflecting away sunlight to influence hurricanes?

I was wondering if we could possibly reduce the severity of, or steer a hurricane by changing albedo (e.g. dying the part ocean with a temporary light colored dye)? My thought would be to put this ...
7
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3answers
117 views

Why don't weather forecast models normally take solar eclipses into account?

Since there is a total solar eclipse somewhere almost every year, I would have thought it would be included as a standard option in weather forecast models. However, I've learned that is not really ...
2
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1answer
57 views

Calculating Solar Noon from Sunrise and Sunset [closed]

I've seen the solar noon formula described as snoon = 720 – 4*longitude – eqtime. I'm curious if it is equally reliable within a relatively small margin of error (+-...
0
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1answer
52 views

Changes in Real Solar size around 1979? [closed]

Has been observed any changes in the real sun´s size on ocassion of the 1979 solar storm event ? (after and before)
6
votes
2answers
937 views

How can we calculate the temperature of the atmosphere, including the greenhouse effect?

I've been struggling to find equations that express how many degrees of warming greenhouse gases contribute, given the composition of an atmosphere (and solar insolation). What I did find was the ...
7
votes
1answer
141 views

Where is the Arctic Circle for civil and astronomical twilight?

The Polar Circles are located at 66°33′46.7″ North and South, defining the minimum latitudes at which, for at least one 24 hour period during the year, the limb of the Sun never becomes invisible ...
6
votes
0answers
58 views

Does the Earth receive a net charge from the aurorae?

The sun radiates a lot of charged particles to the Earth. When the magnetic field of the Earth lines up to the poles, we get the beautiful polar lights. But are there as many negative charged as ...
4
votes
1answer
116 views

What is the meaning of integral of negative magnetic field (nT) over time?

I have a plot of the magnetic field (y-axis) over time (x-axis), one measure each hour (Dst - Disturbance Storm-Time). From time to time, there is a negative peak, which indicates a magnetic storm. ...
2
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0answers
227 views

Why do the magnetic poles move? [closed]

Does the Earth position in the galaxy or solar system affect the orientation of the magnetic axis?
6
votes
1answer
91 views

Would a global cooling event disable solar energy usage?

Imagine that we've improved the level quality, affordability, and ease of use of photo-voltaic solar, and it's use is widely distributed in the USA. We've improved the grid for power distribution, we ...
7
votes
1answer
111 views

Convert satellite image data (GOES 15) into solar irradiance values?

I have GOES 15 satellite image data (GVAR_IMG) for a project that I am working on. The files are end in .BAND_01, .BAND_02, etc. I use the Panoply tool to view these files, but am looking for an ...
6
votes
5answers
2k views

Why wouldn't the earth be “always daytime” if the “daily cycle of sunlight” was drawn full-scale?

The question is clear enough in my opinion but, I've found out that if you redraw this picture here: You'll notice that the Sun is as big as the Earth. But if you scale up the Sun to it's real size ...
3
votes
1answer
155 views

How much reduction of insolation (solar energy) would be required to stop global warming?

Suppose a giant sheet of semi-reflective mylar (or some other kind of partial sun-screening material) was temporarily placed into space between the Earth and the Sun with the intent to lower the ...
5
votes
1answer
85 views

Where can I find solar radiation data for specific land areas?

NOAA has solar radiation data for 1991-2010 http://www.ncdc.noaa.gov/data-access/land-based-station-data/land-based-datasets/solar-radiation But I need data for Nov 1 2012-present! Is this data ...
9
votes
1answer
148 views

Dependence of solar irradiation through the atmosphere on Sun's altitude

I want to show that the higher the Sun's altitude, the higher the solar irradiation through the atmosphere, through simple experiments. However, I don't have the instrument that measures irradiation. ...
12
votes
1answer
288 views

Did Jupiter really make Earth (in)habitable?

A new study by Batygyin and Laughlin suggest that a Jupiter migration toward the inner region of the Solar System during the early stages of system formation cleared the habitable region (Goldilocks ...
16
votes
2answers
2k views

Why is March colder than September in Northern Hemisphere?

Forgive my ignorance of the subject but I was always wondered about the exact reason of this phenomenon. Vernal equinox happens around March 20, whereas autumnal equinox happens around September 22, ...
13
votes
1answer
392 views

Temperature as a function of luminosity and greenhouse gas concentrations

The evidence seems clear that there is an interrelationship between solar luminosity, greenhouse gas concentrations, and temperature. Has temperature as a function of luminosity and greenhouse gas ...
41
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2answers
3k views

(How long) would Earth's atmosphere last without a global magnetic field?

The Earth's magnetic field provides an important protection against the solar wind (for example, see Wikipedia on Earth's magnetic field and references therein). Mars may have lost its atmosphere ...