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Questions tagged [instrumentation]

Applied to questions about the use of instruments in earth sciences.

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5
votes
1answer
55 views

Is sterescope still used to do cartography with orthophotography?

I used this tool at my degree a couple of lusters ago to do cartography with aerial orthophotos. We used it on cartography and geomorphology subjets. Source: gumtree.com The method consists ...
8
votes
2answers
448 views

What are these Gizmos at Izaña Atmospheric Research Center in Spain?

This tweet from the account of the Centro de Investigación Atmosférica de Izaña (AEMET) http://izana.aemet.es Izaña Atmospheric Research Center (AEMET) shows images of meteorological instruments ...
2
votes
1answer
63 views

What is a Micro-Aethalometer; how do portable Black Carbon (BC) Monitors work?

The screenshot below is from MIT's Erik Velasco's presentation Particle exposure and dosage on public transport. My question is about the small, portable Black Carbon (BC) monitor. From my reading, ...
2
votes
1answer
193 views

Which particles are classified as PM2.5? How exactly is this defined?

Question When discussing "PM2.5", is there any standardized understanding of which particles are or are not included? Is it everything that's 2.5 microns and smaller? Or Everything between 2.5 and 0....
2
votes
1answer
42 views

Atmospheric visibility measuring device

I have this project at university where I have to make an atmospheric visibility measuring device using Arduino. I talked with my teacher and he said that I should do something like this, using an ...
5
votes
1answer
73 views

What is a Rotating Shadowband Radiometer, and how does it work?

This answer explains that the device labeled "B" in the photo below is a "Ultraviolet Multifilter Rotating Shadowband Radiometer." What is a Rotating Shadowband Radiometer, and how does it work? ...
2
votes
1answer
160 views

What are these Gizmos at Mauna Loa Observatory?

Artist Rosten Wu's Vimeo channel has a video title Bridging Time and there is discussion about the Keeling Curve and the site where it all began in Hawaii. In the video there is a shot of a weather ...
6
votes
1answer
72 views

How sensitive are typical seismometers?

NASA recently landed a seismometer on Mars, with what sounds an impressive detection ability, with press reports gushing it is "able to detect vibrations smaller than a hydrogen atom." A more ...
3
votes
1answer
89 views

What is this upside-down transparent funnel-shaped item on a weather monitoring station?

I snapped this photo with my cell phone at a fishing harbor in northern Taiwan. I recognize a weather vane + anemometer, and I suspect the two large, dark things at the tops of poles might be ...
3
votes
1answer
267 views

Which type of seismic sensors usually used in Earthquake Early Warning?

As I'm a newbie in seismology and related area, I would like to know which type of seismic sensors usually used in earthquake early warning systems?
7
votes
1answer
764 views

Are there any DIY conductivity sensors that will hold calibration for long periods? {multiple months}

We've just published our DIY underwater loggers: http://www.mdpi.com/1424-8220/18/2/530 and the #1 thing we would like to add to the platform is conductivity. The loggers themselves will easily run ...
5
votes
1answer
173 views

How can I calculate the sensitivity of a seismometer?

I would like to know if a specific seismometer can measure 1 micron/sec velocity. I have a few specs from the datasheet but I'm not a seismologist and am trying to figure out how to relate the specs ...
5
votes
2answers
914 views

Why are CO2 sensors so expensive when CO sensors aren't?

Please excuse me if Earth Science is not the correct place to ask this question. I read a New York Times article about increasing CO2 levels in the atmosphere: "Carbon in Atmosphere Is Rising, Even ...
13
votes
1answer
2k views

Using accelerometer as a seismograph

I'm using ADXL345 accelerometer with Raspberry Pi to build a seismograph. I've successfully hooked it up and can plot the accelerometer data in three axis. Is there any way to express these data in ...
19
votes
1answer
1k views

What is this “crystal ball” located at a meteorological station?

I found what looks like a "crystal ball" in a meteorological station in the Vlădeasa mountains (Romania). What is its purpose?
2
votes
0answers
126 views

How to find instrumental response for a seismic station

I received seismic data for which I would like to remove the instrumental response. The only information I have is that they were recorded on a Trillium broadband seismometer with a cutoff period of ...
8
votes
1answer
94 views

What is the error in bathymetric observations in the presence of vegetation?

How can we determine the error associated with bathymetric measurements when we survey over submerged vegetation? Let's say we are using single-beam echo-sounder over a patch of Posidonia, what are ...
14
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2answers
2k views

Characterizing earthquakes using accelerometer data

Is there a way to use accelerometer data to characterize earthquake intensity, e.g., on Richter scale?
13
votes
1answer
879 views

How significant is a 5-10 mb drop in pressure over a 20 minute period?

I would be interested in seeing how significant a 5-10 mb drop in pressure would be at the surface, and 80 m in the air. The temporal scale would be 20 minutes. If the pressure starts to steadily ...
12
votes
3answers
288 views

What are the scientific consequences of the lost of the Nereus submersible?

The Nereus submersible was lost at sea while exploring the Kermadec Trench at 10,000 meters during a May 2014 research cruise. During its life, it was planned for the ROV to help investigate the ...