SC 130 Physical Science quiz eight • Name:

____________________ Cloud name.
____________________ Cloud name.
____________________ Cloud name.
_______________ A student walked a line of latitude at 6° 54.580' from longitude 158° 09.360' to longitude 158° 09.716'. The student measured a distance of 684 meters. Determine the number of meters per minute of longitude based on this data.
Describe the process that produces the typical daily rain on Pohnpei. Use the back or another sheet of paper.
How do you know that the Bergeron process does not produce the typical daily rain on Pohnpei? Use the back or another sheet of paper.

7. Toughie: Use the temperatures reported in class to calculate the relative humidity using the following table. You will have to round as necessary.

Relative humidity from dry bulb and wet bulb depression
	Web bulb depression in °C: Dry bulb minus the wet bulb
Dry bulb T in °C	0.5	1	2	2.5	3	3.5
21	95%	90%	86%	81%	77%	72%
24	96%	91%	86%	82%	78%	74%
27	96%	91%	87%	83%	79%	75%
29	96%	92%	88%	84%	80%	76%
32	96%	93%	89%	85%	81%	78%
35	96%	93%	89%	85%	82%	79%
38	96%	93%	89%	86%	83%	80%

8. Extra-toughie: Based the dry bulb temperature and relative humidity calculated above, what is the risk for heat related problems when running or working out today? You will have to round as necessary.

Heat index as an effective temperature in °C given a dry bulb temp. and Rel. Hum.
Relative humidity	21	24	27	29	32	35
	Dry bulb temperature in °C
60%	21	24	28	32	38	46
70%	21	25	29	34	41	51
80%	22	26	30	36	45	58
90%	22	26	31	39	50
100%	22	27	33	42

Impact of effective temperature.

Effective temperature in °C:	Risk level
Less than 32 °C	Low risk
32 °C to 41 °C	Heat cramps or heat exhaustion likely
Above 41 °C	Heat stroke likely.