Earth Science Questions, Problems & Solutions : TransWikia.com ~ Page 8

Is the momentum of a volcano's high-velocity ejecta mostly due to expanding gas?

When I was very young I was always amazed that water didn't come shooting up out of the first ice-fishing hole of the season, due to the weight of all...

Asked on 07/18/2021

3 answer

Why does relative humidity drop if I open the window in winter? What about the temperature drop?

I understand that 40% rel. hum. at 0 °C is less absolute humidity than 40% at 20 °C. However, assume that we have 2$~m^3$ of air. Both are 40%...

Asked on 07/17/2021 by user250614

1 answer

Why the difference between Italian coastlines and mountain ranges?

Italy’s relatively straight, parallel coastlines in the main part of the “boot” seem surprising given how the Apennines snake through it, from one side to the other and back. Don’t...

Asked on 07/17/2021 by ed94133

0 answer

What is more important in Antarctica calving or basal melting of the ice shelves?

Ice shelves are present along 75% of Antarctica coast and cover over 1.5 million km2. The two main processes causing mass loss of the ice shelf are basal melting and...

Asked on 07/11/2021

1 answer

How will climate change affect the extent of the Sahara Desert?

Will it increase the size of it? (perhaps by increasing the extent of the Hadley Cells)?...

Asked on 07/10/2021

4 answer

Literature on thematic 4D maps

I need to understand more about thematic 4D mapping. I would roughly classify it as a method of cartography. In particular I want to do research on what software is...

Asked on 07/08/2021 by TheKidsWantDjent

0 answer

Dynamic of glacier retreat? (here: in Greenland)

During the last years I have taken many pictures of obviously retreating glaciers and empty moraines in Greenland - just like this one. Looks devastating, actually.In my understanding, the...

Asked on 07/02/2021 by Stephan Fürnrohr

0 answer

Ore prospecting and the low-hanging fruit effect

I'm trying to acquire an understanding of how the difficulty of prospecting for useful ore has increased over historical timescales. Intuitively, I would expect that centuries or millennia ago, you...

Asked on 07/02/2021

0 answer

Spatially-explicit global database of parent rock chemistry?

As the title suggests, I am looking for the most reliable database(s) of parent-or bedrock chemistry, e.g. the concentration of nitrogen, phosphorus and some other metals (basically plant nutrients). Since...

Asked on 07/01/2021

1 answer

As the number of ocean dead zones increases, is the world's primary source of atmospheric oxygen (phytoplankton) at risk?

Disclaimer: I am not a scientist. I was wondering if there is a concern that the world will run out of breathable atmospheric oxygen as the number of dead zones...

Asked on 06/29/2021 by user21456

1 answer

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