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I'm working on a scientific paper and I want to convey the idea that I have obtained some data by using a certain source. The phrase I wrote was:

The turbulent fluxes at the air-sea interface are estimated by using in-situ data from a moored buoy of the Prediction and Research Moored Array over the Tropical Atlantic Ocean.

Is the by in the phrase correctly used?

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Is in situ really spelled with a hyphen? – TLP Oct 19 '11 at 21:18
Not when it's a noun. But when it's an adjective, it wants a hyphen. Many people use it as an adjective without the hyphen, though, so it wouldn't be wrong if it was changed. – Daniel Oct 20 '11 at 0:06
I'm using in situ to describe the 'quality' of the data, that it was measured, well, in situ. – Draconar Oct 20 '11 at 10:05
up vote 1 down vote accepted

The usage of "by using" is often encountered in scientific articles and literature. I suppose your example is from a similar source.

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Yes, the usage of by in your sentence is correct, though unnecessary. You could remove the by and retain the original meaning:

The turbulent fluxes at the air-sea interface are estimated using in-situ data ...

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