1. Temperature at the western boundary (T west ) required at each time-step Timestep 1: T west = 0 o C Timestep 2: T west = -1 o C Timestep 3: T west = -2 o C Timestep 4: T west = -3 o C

2. Temperature at the western boundary (T west ) required at each time-step Timestep 1: T west = 0 o C Timestep 2: T west = -1 o C Timestep 3: T west = -2 o C Timestep 4: T west = -3 o C

3. Temperature at the western boundary (T west ) required at each time-step Timestep 1: T west = 0 o C Timestep 2: T west = -1 o C Timestep 3: T west = -2 o C Timestep 4: T west = -3 o C

4. Temperature at the western boundary (T west ) required at each time-step Timestep 1: T west = 0 o C Timestep 2: T west = -1 o C Timestep 3: T west = -2 o C Timestep 4: T west = -3 o C

5. Temperature at the northern boundary required at each time-step (grid-box 1 T north ) Timestep 1: T north = 5 o C Timestep 2: T north = 5 o C Timestep 3: T north = 5 o C Timestep 4: T north = 4 o C

6. Temperature at the northern boundary required at each time-step (grid-box 2 T north ) Timestep 1: T north = 10 o C Timestep 2: T north = 10 o C Timestep 3: T north = 10 o C Timestep 4: T north = 9 o C

7. Temperature at the northern boundary required at each time-step (grid-box 3 T north ) Timestep 1: T north = 20 o C Timestep 2: T north = 20 o C Timestep 3: T north = 18 o C Timestep 4: T north = 17 o C

8. Temperature at the northern boundary required at each time-step (grid-box 4 T north ) Timestep 1: T north = 25 o C Timestep 2: T north = 25 o C Timestep 3: T north = 24 o C Timestep 4: T north = 23 o C