Southwest Sciences proposed the development of a rugged, compact, and automated instrument for the high sensitivity measurement of tropospheric carbon monoxide (CO). The application of recently developed room temperature vertical cavity diode lasers operating near 2300 nm permits the development of sensitive and rugged instrumentation for measurement of atmospheric CO with high precision. Phase I efforts will address the feasibility of measuring CO to a precision of 10 parts-per-billion or better over a range of tropospheric temperatures, pressures, and humidities. Phase II will emphasize development of prototype instrumentation for field testing.
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