Unanswered Questions

173 questions with no upvoted or accepted answers
25 votes
0 answers
1k views

How are Mauna Loa $\ce{CO2}$ monthly trends computed?

The problem I am trying to figure out how $\ce{CO2}$ concentration trends are computed in the data provided by the Earth Systems Research Laboratory Mauna Loa Observatory. The data contains monthly ...
17 votes
0 answers
758 views

How will climate change affect the entropy budget of the atmosphere?

The entropy per unit mass of moist air can be defined as $$s=(1-q_t)(C_{pd} \ln{T}-R_d\ln{p_d})+q_tC_l\ln{T} + \frac{q_vL_v}{T}-q_vR_v\ln{\mathcal{H}}$$ And in statistical equilibrium, the entropy ...
14 votes
0 answers
197 views

Will global climate change alter the interannual and/or intraseasonal variance of temperature and/or precipitation?

A quick skim of the regional chapters in AR5 shows predicted changes to average temperature and precipitation. If I understand (in rough terms) the modelling methodologies used, a variety of models (...
10 votes
0 answers
299 views

What is the smallest grid spacing that Eulerian air quality models should use?

The University of Washington runs the Advanced Research Weather Research & Forecasting (WRF) model in predictive mode, and then tests the skill of the model anywhere from 12 - 84 hours out from ...
8 votes
0 answers
277 views

Predict wind speed in a forest based on speed over and under canopy?

I am trying to understand the calculation of the wind speeds at forest edge. I am pretty new in wind simulation and profiles in general, so I am sorry if asking simple questions. I have found that it ...
8 votes
0 answers
74 views

By how much did the Earth's diameter decrease due to cooling, if at all, since it was formed?

The answer to How long until Earth's core solidifies? question cites an estimation that the Earth (as a planet, not the surface of it) has cooled down by about 250K since it was formed. The question ...
7 votes
0 answers
59 views

Could the Pineapple Express collide with cold air, resulting in extreme snowfall?

The pineapple express is a colloquial term for the strong atmospheric river produced by the polar jet stream, which drives excessive moisture and warmer air towards north-western North America. With ...
7 votes
0 answers
256 views

Why is wind shear consistently high in the South Atlantic?

I have read that perhaps the largest reason that tropical cyclones are so rare in the South Atlantic is due to chronically-high vertical wind shear which inhibits their structural development. But ...
7 votes
0 answers
78 views

Global Land and Sea Surface Temperature Data

我们是一个副产品从你目前慕尼黑和磨破king on equipping a CubeSat with a thermal imager. The imager should be able to acquire thermal/ir images with resolution of about 200m/px. In the ...
7 votes
0 answers
93 views

How much heat do hurricanes transport from equatorial to more polar latitudes, and from ocean to atmosphere?

And how much does this heat compare with the total fraction of heat otherwise transported from equatorial to polar latitudes, and from ocean to atmosphere?
7 votes
0 answers
263 views

How will climate change affect the total kinetic energy in the atmosphere?

In particular, how it will affect the eddy and zonal components of kinetic energy in the atmosphere? (I'm also curious about potential energy, though that could come in another question)
7 votes
1 answer
494 views

Why is the Northern Hemisphere warming faster than the Southern Hemisphere?

Hi I just found the NOAA table. It clearly shows that the N. hemisphere has warmed much more than the southern hemisphere since 1880! https://www.ncei.noaa.gov/access/monitoring/monthly-report/global/...
6 votes
0 answers
54 views

Is the troposphere expanding?

If the Earth's atmosphere is warming it has to expand. Can we measure an increasing thickness of the troposphere?
6 votes
0 answers
123 views

What exactly causes this moving orange glow before sunrise?

I've been watching twilights for some time, and noticed that each time there's a very clear sky, an orange-pinkish glow is visible at the solar azimuth when Sun is somewhere between 1° and 5.5° below ...
6 votes
0 answers
81 views

Why is the air above the Himalayas warmer than surrounding areas?

Looking at earth.nullschool.net on13.09.2021you can see that the temperature above the Himalayas appear warmer than the surroundings (at 700 hPa): At the surface ...

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