Sensitivity of CO2 and CH4 Annual Cycles to Different Meteorological Variables at a Rural Site in Northern Spain

<div>Annual evolution of wind speed and CO2 (a) and CH4 (b). Three situations were considered: with all the observations during the night (cyan line), for wind speed below 3 m·s−1 (red line), and for wind speed over 7 m·s−1 (green line). The appearance frequency for low and high wind is also shown.</div>

Advances in Meteorology

fig6

Figure 6

Figure 6: Sensitivity of CO2 and CH4 Annual Cycles to Different Meteorological Variables at a Rural Site in Northern Spain