Development of Calibration-Free Autonomous Chemical Sensors for Ocean Biogeochemical Measurements
Abstract
The long term goal of the project is to develop autonomous chemical sensors for oceanographic applications. The autonomous sensors will be used on moorings, drifters and other unmanned platforms to study ocean biogeochemical processes. The results obtained from the autonomous sensors will help quantify ocean biogeochemical fluxes and will be used to further develop coupled physical-biogeochemical models of the surface ocean. Improvements in current models will allow more accurate predictions of the effects of climate change and other anthropogenic impacts on ocean biogeochemical cycles. The primary objective is to determine if other chemical sensors can be developed based on the calibration-free design discovered by the PI during the development of a pCO2 sensor (DeGrandpre et al. 1995, 1999). If the design proves applicable to other analytes, it will be possible to develop autonomous sensors for these analytes that have an identical sensor-to-sensor response with excellent long-term stability, potentially eliminating the need for periodic calibrations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2000
- Accession Number
- ADA609918
Entities
People
- Michael DeGrandpre
Organizations
- University of Montana