Sentences with phrase «approximate sine wave»

There's not much data post-2010 so it's hard to say it's on the downslope of an approximate sine wave with a period of 60 years but so far it's right on track.

The observed shift (in latitude) appeared as an approximate sine wave of about 14 months long.

Not exact matches

By scrutinizing its shape just before the final cataclysm, the scientists found that it closely approximated a simple sine wave with a steadily increasing frequency and amplitude.

OK they are not like astronomic orbits, there is some variation and irregularity but they do approximate to sine waves on century scales.