This project is developing an underwater coded aperture miniature mass spectrometer (UW-CAMMS) using a cycloidal mass analyzer, spatial aperture coding, and a focal plane array detector that will improve sensitivity, resolution, and power requirements compared to the current state of the art underwater mass spectrometers used for in situ measurements of dissolved gases in the ocean. Once developed, UW-CAMMS will be useful for and easily adapted to a wide variety of underwater and/or shipboard based analyses). However, for the purposes of this project we will focus on improving the state of the art for measurements of dissolved methane to help address the extent of methane attenuation in the vertical column, and the proportion of methane from gas hydrates reaching the atmosphere. The three objectives are listed below:
This project is funded by NSF award 2123556 https://www.nsf.gov/awardsearch/showAward?AWD_ID=2123556