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Earth Science : Recent Questions and Answers (Page 4)

Find answers to your questions about Earth Science or help others by answering their Earth Science questions.

Noise level estimation using Hildebrand & Sekhon method

I have some data from a radar to process in order to find the moments and in turn the wind speeds. I have no prior knowledge in signal processing so...

Asked on 09/05/2021 by RogUE

0 answer

Total differentiation

The local derivative is linked to the total derivative by: $frac{partial T}{partial t} = frac{DT}{Dt} - mathbf{U} cdot nabla T$ and the -$ mathbf{U} cdot nabla T$ term...

Asked on 09/05/2021 by duff18

2 answer

Rainfall units conversion from depth to rate/intensity

Given 6-hour rainfal data with units in meters(m), how can one convert the 6-hourly rainfall depth in meters(m) to 1-hourly rainfall intensity or rate in kg/m^2/s? Below is a sample...

Asked on 09/05/2021 by code123

1 answer

Is the lack of aerosols increasing temperatures in 2020?

2020 is predicted to be an unusually warm year and we are already seeing a lot of unusual temperatures. I was wondering, how much of an impact the reduction of...

Asked on 09/05/2021

1 answer

Using Enhanced Rock Weathering in the Sahel Region of Africa

A recent Guardian article "Spreading rock dust on fields could remove vast amounts of CO2 from air" has gotten some attention in the nongovernmental and UN organizations...

Asked on 09/05/2021

3 answer

Rain during Hot Weather

During hot weather, it is uncommon for there to be rain without lightning and thunder if the weather is hot. I find that the general rule of thumb is that...

Asked on 09/05/2021

0 answer

Why are temperatures within a few degrees of the all-time high actually pretty common?

I see from a news report that the all-time high temperature, anywhere on Earth, is 129 F. But temperatures within 10 degrees of that record are not rare, and temperatures...

Asked on 09/05/2021 by Robert Dodier

1 answer

Can Horizontal Radiation Fluxes Contribute to Net Column Heating?

I've noticed that in many papers it's common to assume the (daily or longer averaged) vertically integrated radiative heating can be expressed $F_z(text{TOA})-F_z(text{SURF})$, where ...

Asked on 09/05/2021

1 answer

Are we entering a new Ice Age according to Milankovitch cycles?

Milankovitch cycles consist of three orbital parameters: eccentricity, obliquity, and precession of equinoxes. According to Milutin Milankovitch, the most recent glacial period ended nearly 11,000 years ago, when combination of...

Asked on 09/05/2021 by seamos

2 answer

How far downwind of a covid-19 emitter has a 1000-fold reduction in PPM?

How far downwind of a covid-19 emitter has a 1000-fold reduction in PPM? Assuming that covid-19 (0.12μm diameter) particles have the aerodynamic properties of a gas:Particles < 20 μm behave...

Asked on 09/05/2021 by polcott

1 answer

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