Unanswered Questions

196 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 ...
9 votes
0 answers
129 views

How to convert units of averaging kernel from DU/DU to ppbv/ppbv

For validation of model data, I want to compare the ozone data from model to the satellite results downloaded from the following link: The satellite data are in DU(Dobson Unit) while the model data ...
9 votes
0 answers
204 views

Modeling swirling storms

I'm looking to demonstrate the rotational behaviour of swirling storms with a numerical simulation. So far it includes pressure-gradient, Coriolis acceleration, frictional forces and the acceleration ...
8 votes
0 answers
82 views

Nobel prize Manabe's 1967 code for solving the 1D atmospheric thermal equilibrium model

Does someone know where to find a (hopefully modern) version of the numerical code for solving the 1D atmospheric thermal equilibrium model, the one Syukuro Manabe & Richard T. Wetherald used in ...
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 ...
8 votes
0 answers
132 views

Shallow water height as vertical coordinate

In atmospheric physics we use often a variety of vertical coordinates, $z$ the height above some reference surface, or $r$ as distance from the planetary center. However sometimes it simplifies the ...
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

我们是一个从你慕尼黑和分拆currently working 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
86 views

Spatial variability in ocean surface winds

For the near-surface winds over the ocean, many model products and satellite footprints have spatial resolutions on the order of tens of kilometers. I'm interested in knowing how much the winds (both ...
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?

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