objective: determine where clouds form using dewpoint and relative humidity agenda: cloud notes...
TRANSCRIPT
![Page 1: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/1.jpg)
November 11, 2011
![Page 2: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/2.jpg)
Objective:Determine where
clouds form using dewpoint and relative humidity
Agenda:Cloud NotesCloudbase labWind NotesIsobar practice
![Page 3: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/3.jpg)
![Page 4: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/4.jpg)
Cloud Notes
![Page 5: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/5.jpg)
1. Condensation surface In order for condensation to occur,
two things must take place. The air needs to be saturated. There is a condensation surface available.
On the ground, the condensation surface would be the grass.
In the air, the condensation surface would be aerosols such as dust, smoke and pollutants.
HOW DO CLOUDS FORM AND CAUSE PRECIPITATION?
![Page 6: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/6.jpg)
2. Precipitation This is liquid or solid water that falls
from clouds. All clouds are made of tiny water
drops or ice crystals. Precipitation happens when the water
drops or ice crystal become heavy enough to fall.
Precipitation actually cleans the atmosphere by washing the dust, smoke and pollutants back down to the earth.
The bad part is that this also causes acid rain
![Page 7: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/7.jpg)
1. There are three main types of clouds. Stratus: horizontally layered clouds Cumulus: puffy clouds Cirrus: feathery clouds
TYPES OF CLOUDS
![Page 8: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/8.jpg)
![Page 9: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/9.jpg)
![Page 10: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/10.jpg)
How to determine Dew Point & Humidity
Use a sling psychrometer:
1. Find the "dry bulb temp"
2. Subtract the dry and wet bulb.
3. Find the difference on the top
Use the exact same procedure for finding the Relative HumidityCHECK YOUR CHART!!
![Page 11: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/11.jpg)
Moving air is called Wind
231mph @ Mt. Washington, NHApril 12, 1934
http://www.mountwashington.org/about/visitor/recordwind.php
World's Strongest Wind:
![Page 12: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/12.jpg)
Wind
Basic Rules:
1. Warm air rises
2. There is always air
3. Warm air cools off
4. The Sun heats the GROUND
Wind is caused by differences in air
pressure
![Page 13: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/13.jpg)
Wind
Low Pressure
L
High Pressure
HWIND
Wind moves from
________________
to
________________
Remem
ber that...
![Page 14: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/14.jpg)
WindWhich way is it moving??
![Page 15: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/15.jpg)
WindHow about here? ?
![Page 16: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/16.jpg)
Isomaps & Wind
Isobars:connect pointsof equal pressureThe closer the linesthe higher the windspeed.
http://ww2010.atmos.uiuc.edu/(Gh)/wx/surface.rxml
Think of contourmaps made of hills of air...
![Page 17: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/17.jpg)
There is always a more complex map
![Page 18: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/18.jpg)
Weather Instruments
Wind Vaneswind
direction
Thermometers
Temperature
BarometersAir
Pressure
AnemometersWind Speed
Leaning Tower of Pisa Mt. Washington -
![Page 19: Objective: Determine where clouds form using dewpoint and relative humidity Agenda: Cloud Notes Cloudbase lab Wind Notes Isobar practice](https://reader036.vdocuments.net/reader036/viewer/2022062717/56649e555503460f94b4d299/html5/thumbnails/19.jpg)
wind is measured by an anemometer (wind speed) and a wind vane (direction)
Wind moves from areas of high pressure to areas of low pressure
The Rules of Wind