Methods and apparatus for measuring gas flux

A system for measuring gas flux, the system comprising:

• a wind speed measurement device configured to obtain wind speed data including a plurality of wind speed measurements obtained over a period of time at a first sampling rate;
• a gas analyzer configured to obtain gas content data including a plurality of gas content measurements obtained over said period of time at a second sampling rate;
• and
• an intelligence module adapted to receive the wind speed data and the gas content data, wherein the intelligence module including a processor configured to automatically:
• compute a plurality of different gas flux values for said period of time using a corresponding plurality of different flux calculation algorithms, wherein each of the plurality of different flux calculation algorithms uses one or both of the wind speed data and the gas content data to calculate gas flux values for a plurality of sub-periods of said period of time;
• for each of the plurality of sub-periods of said period of time, determine an optimal flux calculation algorithm of the plurality of different flux calculation algorithms based on one or more quality indicators;
• and
• output or store, for each of the plurality of sub-periods, one or more optimal flux calculation values corresponding to the optimal flux calculation algorithm for the sub-period.

A non-transitory, computer-readable medium that stores code, which when executed by one or more processors causes the one or more processors to implement a method of:

• obtaining wind speed data, including a plurality wind speed measurements measured by a wind speed measurement device over a period of time at a sampling rate of the wind speed measurement device;
• obtaining gas content data, the gas content data including a plurality of gas content measurements measured by a gas analyzer over said period of time at a sampling rate of the gas analyzer;
• computing a plurality of different gas flux values for said period of time using a corresponding plurality of different flux calculation algorithms, wherein each of the plurality of different flux calculation algorithms uses one or both of the wind speed data and the gas content data to calculate gas flux values for a plurality of sub-periods of said period of time;
• for each of the plurality of sub-periods of said period of time, determining an optimal flux calculation algorithm of the plurality of different flux calculation algorithms based on one or more quality indicators;
• and
• outputting or storing, for each of the plurality of sub-periods, one or more optimal flux calculation values corresponding to the optimal flux calculation algorithm for the sub-period.

A method of measuring gas flux, the method comprising:

• obtaining one or more of wind speed data, gas content data, temperature data and humidity data over a period of time;
• computing a plurality of different gas flux values for said period of time using a corresponding plurality of different flux calculation algorithms, wherein each of the plurality of different flux calculation algorithms uses one, some or all of the wind speed data, the gas content data, the temperature data and the humidity data to calculate gas flux values for one or a plurality of sub-periods of said period of time;
• for each of the one or the plurality of sub-periods of said period of time, determining an optimal flux calculation algorithm of the plurality of different flux calculation algorithms based on one or more quality indicators;
• and
• outputting or storing, for each of the plurality of sub-periods, one or more optimal flux calculation values corresponding to the optimal flux calculation algorithm for the sub-period.