Sentences with phrase «track changes in the concentration»

Susan Solomon and colleagues at the US National Oceanic and Atmospheric Administration combined satellite measurements and weather balloon data to track changes in the concentration of water vapour 16 kilometres up in the stratosphere, between the 1980s and today.

By tracking the changes in the concentration of electrolytes in your saliva, the OvaCue ® Fertility Monitor is able to detect the hormonal changes that coincide with the selection of the dominant follicle.

Not exact matches

This allowed them to track changes in calcium ion concentrations in the cells around wounds in living tissue (as opposed to the cell cultures used in many previous wound response studies) and to do so with an unprecedented, millisecond precision.

They first estimated the changes in concentrations of flower scents as a result of air turbulence and chemical interactions using a computer simulation, which allowed them to track the concentration and movement of multiple plumes of scents from different flower beds over time.

If one postulates that the global average surface temperature tracks the CO2 concentration in the atmosphere, possibly with some delay, then when the CO2 concentration continues to rise monotonically but the global average surface temperature shows fluctuations as a function of time with changes in slope (periods wherein it decreases), then you must throw the postulate away.

With the atmospheric concentrations of GHGs thus unlikely to stabilize in this century (even for the low SRES scenario) without major policy changes, from an emissions perspective, we are not on track for meeting the objectives of UNFCCC Article 2.

Since 1850, variations in global surface temperature appear to track changes in the level of solar activity at least as well as they track increasing greenhouse gas concentrations.