Earth Science Stack Exchange
Earth Science Stack Exchange

Questions tagged [measurements]

Questions related to acquiring, processing and interpreting field measurements of any kind. Including instrumentation and data analysis.

Earth Sciences require the acquisition of vast amount of field measurements, such as temperature, topography, chemical composition, optical properties, etc. This tag is related to anything related to the acquisition, processing and interpretation of such measurements.

144 questions
11
votes
1 answer

Turbidity/clarity vs optical depth

Are measurements for clarity (secchi disk) or turbidity (nephelometer) made for water quality related in any way to measurements made for optical or aerosol optical depth in meteorology?
Steve
  • 151
  • 4
3
votes
0 answers

Determine Latitude and Longitude without a GPS

Is it possible to measure the strength of a rare earth magnet to determine latitude and longitude of a current position? For instance say you start with your known latitude and longitude and then use a compass, accelerometer or other sensor besides…
Brian Bass
  • 39
  • 1
2
votes
1 answer

Why can't I measure the width of a waterfall on Google Maps?

From the Wikipedia article for Khone Phapheng Falls: It is the widest waterfall in the world at $10783$ metres ($35376$ feet or $6.7$ miles) in width from one edge of its multiple channels to the other. But on Google Maps the longest distance I…
Snack Exchange
  • 363
  • 12
1
vote
0 answers

How to find latitude and longitude?

I worked on the map and found out that point A is 60oN 120oW by looking at it, but the answer said that it A is suppose to be 30oN 90oW. For B, I got 30oS 60oW, but the answer said that B is 23oS 43oW. But points 23 and 43 are not on the map! What…
MathWA wenti
  • 105
  • 1
  • 9
1
vote
1 answer

Is it possible to obtain the richter grade of an earthquake with the data of an accelerometer?

I have an accelerometer on a table that gives me the $x$, $y$, and $z$ axis acceleration in $m/s^2$ when I move the table. Is there a formula or method to pass this data to a earthquake grade in a Richter Rank?
Total
  • 11
  • 1
0
votes
0 answers

Another question about the width of Khone Phapheng falls

In a previous question I asked why I can't measure the width of Khone Phapheng Falls; and I found out from the comments that I didn't take this into account that Khone Phapheng Falls are sets of falls that all discharge water to the Mekong…
Snack Exchange
  • 363
  • 12