Evapotranspiration (ET) is the sum of evaporation and plant transpiration from the Earth's land and ocean surface to the atmosphere. Evaporation accounts for the movement of water to the air from sources such as the soil, canopy interception, and waterbodies.
This is usually the first day of your maternity leave. You do not have to be actually at work to have this choice. For example, you might be off sick. If your employment ends before the start of the 11th week before the week your baby is due, your SMP will start at that 11th week. SMP can be paid for up to 39 weeks, this is called the Maternity Pay Period (MPP). Statutory Maternity Leave.
For example, if you were due to return to work after 52 weeks' maternity leave on 1 August, but then decided to return to work after 39 weeks of leave (that is, on 9 May) you would need to give eight weeks' notice of the new date (that is, by 14 March).