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Questions tagged [gps]

Global Position System

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3 votes
1 answer
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Is the surface of the Indian ocean really 106 meters below sea level?

CNN's July 24, 2023 There is a ‘gravity hole’ in the Indian Ocean, and scientists now think they know why links to the Geophysical Research Letter (Pal & Ghosh 2023) How the Indian Ocean Geoid Low ...
uhoh's user avatar
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1 vote
0 answers
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Would obliquity and precessional changes of Earth affect the accuracy of GPS-based measurement of tectonic movements?

The rate and direction of tectonic movements can be measured by comparing the coordinates of the same GPS receiver over time. The coordinates are obtained using trilateration. All materials I could ...
seamos's user avatar
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1 vote
1 answer
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Maximum and minimum integer number of latitude and longitude

I'm developing an application where the user inputs latitude and longitude numbers in float type format. I have to validate that the format of the numbers are correct. My doubt is what is the maximun ...
schrodingerscatcuriosity's user avatar
2 votes
1 answer
810 views

How to calculate gps location based on direction and distance?

I need to calculate the gps coordinates of a point "North 52° West 2.67 chains" from a known location. What's the process to make this calculation? If possible, start with 37N-91W. There's an answer ...
Don Branson's user avatar
3 votes
1 answer
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What (if any) "in-situ instrumentation" is on the Brunt Ice Shelf that will detect its splitting and breaking away?

The BBC News article Antarctic: No role for climate in Halley iceberg splitting says: With no-one on the ice surface, notice of any breakaway will have to come from automated in-situ instrumentation ...
uhoh's user avatar
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1 vote
1 answer
503 views

Can a microGPS tracker trace the path of an underwater drainage conduit?

The Devil's Kettle is a pothole in the rock where a small river disappears underground in the Judge C.R. Magney State Park in Minnesota. Would it be possible to trace the path of the drainage conduit ...
Aoi. T_015's user avatar
8 votes
1 answer
397 views

The giant 6,000 km$^2$ iceberg A-68; will ground-truth telemetry supplement satellite tracking data?

update 2: FIRST images of A-68 iceberg not taken from a satellite in space but from the air are out. On this NASA Earth Observatory web page are areal images from NASA's Operation IceBridge taken from ...
uhoh's user avatar
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