University of California

Earth Networks, Inc.

Ralph Keeling

Robert S Marshall

Christopher Dale Sloop

Elena Novakovskaia

Ray F Weiss

Lisa Welp-Smith

Manvendra K Dubey

William J Paplawsky

Methods and apparatuses, including computer program products, are described for measuring greenhouse gas. A calibration device receives a first sample of atmospheric gas from a first port exposed to the earth's atmosphere. The calibration device receives a second sample of atmospheric gas from a second port exposed to the earth's atmosphere. The calibration device routes the first sample and the second sample to a measurement device for greenhouse gas analysis. The measurement device determines a characteristic of a greenhouse gas present in at least one of the first sample and the second sample. The measurement device transmits data associated with the determined characteristic of the greenhouse gas to a computing device for determining sinks and sources of the gas.

Network for measuring greenhouse gases in the atmosphere

Data representative of a measured carbon dioxide (CO) concentration and of a measured oxygen (O) concentration at a measurement location can be used to determine whether the measured carbon dioxide concentration at the measurement location is elevated relative to a baseline carbon dioxide concentration due to escape of carbon dioxide from a source associated with a carbon capture and storage process. Optionally, the data can be used to quantify a carbon dioxide concentration increase at the first location that is attributable to escape of carbon dioxide from the source and to calculate a rate of escape of carbon dioxide from the source by executing a model of gas-phase transport using at least the first carbon dioxide concentration increase. Related systems, methods, and articles of manufacture are also described.

Measurement of carbon capture efficiency and stored carbon leakage

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San Diego, CA, United States of America

Ralph Keeling