temperature question (pretty advanced)... please help?

Question

Ok I have no clue on how to find the wet bulb temperature, when i'm given the dry bulb temperature and the dew point temperature. Maybe you can help me out on these?

What is the wet bulb depression when:

dry bulb temperature = 6 degrees celsius
dew point temp = -2 degrees celsius

dry bulb temp = 4 degrees C
dew point = -2 degrees C

dry bulb temp = 2 degrees C
dew point = -8 degrees C

Thanks

Answer 1

Here is the link to some charts that will give you the answer. Click on link to download.

http://www.wrh.noaa.gov/sto/rhtbl.php

Note that the answer will depend on the elevation above sea level (ASL). So choose your chart wisely. Since your question did not include the elevation, you may want to check if there are any mention what level these reading have been taken. I have noticed that many of these related questions are usually missing the elevation which is also important to know.

Answer 2

There are tables or graphs that help you find these. The wet bulb temp is a temp that can be acheived by rapid adiabatic cooling. Before the fancy equipment, this was how humidity was measured. You took a thermometer, put a wick on the bottom and dipped the wick in water to wet it. Then you swang the thermometer around a few times and read by wet bulb temp. A graph gave you the dew point and the relative humidity.

Answer 3

When I worked as a weather forecaster, we used to relate dry bulb, wet bulb, dewpoint and relative humidity with tables. Try googling something like wet bulb tables.

Answer 4

do your own home work punk