CO2 absorbs around the 15 microns wavelenght or wavenumber 650, and radiates in the same but also a somewhat wider range.
However, the top layer of the oceans seem to also convert that spectrum range. According to a paper I found there is some increased absorbance of infrared in water around the 650 wave number.
Can it in a substantial way contribute to a conversion of that spectrum range to other spectra?
Added text for asked clarification.
We know co2 radiation is somewhat wider than absorption. I am asking if that is the same in the first few microns depth in water (few molecules of the top layer). Absorption of infrared in water does the same? And the total (combined with co2) is substantial enough to explain the missing gap around 15 microns wavelenght in the outgoing radiation of the earth?