As you know, I am not only a wedding officiant in pa, but wear many hats!!! Well... I try to anyway, as long as this back pain will allow... Anyway, as a wedding officiant in pa, we often schedule our weddings a couple years in advance, but how can we be sure of a bright, sunny day? Unfortunately, this wedding officiant has no control over our weather, but since I did take a class in such, I just LOVE to continue education for our public!
Today's weather tidbit will discuss the advantages and disadvantages of relative humidity, specific humidity, and dew point temperature.
Relative humidity is measured by percentage. We take the ratio of the amount of vapor in the air, and compare it to the amount that is required for saturation, and the ratio of air's actual vapor pressure to its saturation vapor pressure. The advantage of using relative humidity is to indicate an air's sample closeness to saturation, but it is not good to indicate amount of moisture in an air sample (Ahrens, 2008, p. 83).
Specific humidity is the ratio of mass for water vapor in a given parcel to the total mass of air in a parcel. The advantage is good for indicating moisture in an air sample because the values are the same; they are not affected by temperature changes. However, if we add or remove moisture this tool will not be good for our meteorologists (Ahrens, 2008, p. 82).
Dew point temperature is another type for humidity measurements. It is also an absolute and relative indicator of moisture content. We take the temperature that our air must be cooled, in order for saturation to occur (Ahrens, 2008, p. 85). The advantages are that we can determine that a high dew point will have more water vapor in the air, and a low dew point will have less vapor in the air (Ahrens, 2008, p. 85). The disadvantage is that if our air is already saturated, the human body's perspiration will not evaporate. This person could experience a heat stroke (Ahrens, 2008, p. 88).
I know all too well of the above scene!!! If we are having a wedding during summer time, be sure to stay hydrated!!!
OK, I hope you enjoyed this tidbit for the day, and look forward to seeing you ALL soon.
Kind Regards,
Dr. Anna Mock-Ward
To learn more about our weather, be sure to read the following works cited page!
Works Cited
Ahrens, C. Donald. (2008). Essentials of Meteorology: An Invitation to the Atmosphere.
USA:Brooks/Cole.
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