How many sensors do we have in the Earth's oceans?

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Discussion Overview

The discussion revolves around the types and stability of sensors deployed in the Earth's oceans, including their resolution and the various measurements they provide, such as temperature, wave height, and chemical concentrations. The scope includes technical aspects of sensor networks and their applications in environmental monitoring.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants inquire about the stability and effective resolution of ocean sensors.
  • There are mentions of numerous weather buoys equipped with various sensors, with some participants suggesting there are hundreds of such devices.
  • One participant expresses interest in a broad range of sensors, including those measuring temperature, wave height, and chemical concentrations.
  • Concerns are raised about the presence of military and classified sensors, which may not be publicly acknowledged or understood.
  • Specific details about wave height measurements from weather buoys are provided, indicating a precision of 0.1 ft, while noting that chemical concentrations are not measured by these buoys.

Areas of Agreement / Disagreement

Participants generally agree on the existence of various sensors in the oceans, but there are differing views on the types of measurements available and the stability of these sensors. The discussion remains unresolved regarding the overall effectiveness and coverage of these sensor networks.

Contextual Notes

Limitations include the lack of clarity on the total number of sensors, the specific types of measurements they provide, and the unknown status of classified military sensors.

Simfish
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And are any of these sensors stable? What is the effective resolution that we get from these sensors?
 
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Sensors of what? We have dozens (hundreds?) of weather buoys, for example, with lots of sensors on them: http://www.ndbc.noaa.gov/rmd.shtml
 
Oh nice. That's a really nice map.

I was thinking of sensors of pretty much everything (so we obviously know temperature from these - but I was also curious about wave height and chemical concentrations).
 
Simfish said:
And are any of these sensors stable? What is the effective resolution that we get from these sensors?

As russ stated, we have hundreds of weather bouys and other countries have their own networks. In addition, the military (especially the Navy and the Coast Guard) have an unknown number of intelligence sensors--on the surface, on the bottom, and likely in between. Finally, there are highly classified sensors located in mysterious places all around the world by numerous agencies--some of which are presumed not to exist.
 
Simfish said:
Oh nice. That's a really nice map.

I was thinking of sensors of pretty much everything (so we obviously know temperature from these - but I was also curious about wave height and chemical concentrations).
Well wave height is shown on them (precision, .1 ft) - click one: http://www.ndbc.noaa.gov/station_page.php?station=42099

Not chemical concentrations, though.
 

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