Can anyone help with the following:-

Measure the relevant sea level rises as accurately as possible. Give your answers in millimetres to one decimal place.
What is the predicted annual sea level rise in 2050 associated with each of the following CO2 concentrations and climate sensitivity scenarios

Stabilisation of CO2 concentrations at 450 p.p.m. in 2100 assuming a climate sensitivity of 3.0 °C.

I have measured the sea level rise ( using a computer program) in 2050 = 0.291m,

In 2100 the level would be 0.470m at a climate sense of 3.2 degrees = 0.470m,

The question gives a baseline date of 1990, is this the date I would use to calculate the sea level rise from ?

and would I be expected to work the annual sea level rise out between 1990 - 2050 (60 years) 1990 level is used for some reason ??? not sure

or would it be 1990 - 2100 ????

any advice would be a help ! and thanx

You and I differ on the term measurement. Computers simulate and calculate, not measure (IMO).

If the baseline is 1990, you start there.

Then, calculate it from 1990 to 2050 (when the problem asked for it).

I concur and thank you ...

To calculate the predicted annual sea level rise in 2050 associated with a CO2 concentration of 450 p.p.m. in 2100 and a climate sensitivity of 3.0 °C, you would need to use the following information:

1. The sea level rise measured in 2050 using a computer program is 0.291 meters.
2. The sea level rise in 2100 at a climate sensitivity of 3.2 degrees is 0.470 meters.

To calculate the annual sea level rise, you need to determine the difference in sea level between 1990 and 2050. The baseline date of 1990 is used because it provides a starting point for the measurement.

Since the question does not mention any specific sea level measurements for 1990, you would need to refer to a reliable source or dataset that provides historical sea level measurements. Once you have the sea level measurement for 1990, you can subtract it from the sea level measurement in 2050 (0.291 meters) to find the sea level rise over the period.

For example, if the sea level in 1990 was 0.1 meters, the calculated annual sea level rise between 1990 and 2050 would be:

Sea level rise = Sea level in 2050 - Sea level in 1990
= 0.291 meters - 0.1 meters
= 0.191 meters

To convert the sea level rise to millimeters, you can multiply it by 1000:

Annual sea level rise (mm) = 0.191 meters * 1000
= 191 mm

Thus, the predicted annual sea level rise in 2050 associated with a CO2 concentration of 450 p.p.m. in 2100 and a climate sensitivity of 3.0 °C is 191 millimeters (rounded to one decimal place).