<< Chapter < Page Chapter >> Page >

The GLOBE instruments will allow students to measure both the surface temperature (the temperature of Earth’s surface or other objects) and the air temperature (the temperature of the air). Air and surface temperature measurements are not always equal at a given location. That’s because surfaces tend to change temperature more quickly than the air, warming more quickly during the day and cooling more quickly at night. Some surfaces warm more quickly than others due to their color and composition, and this can affect the temperature of the air above them. You may want to have students experiment with measuring the temperatures of different surfaces outside.

An urban heat island occurs when a metropolitan area is significantly warmer than surrounding rural areas. This happens because surfaces like asphalt and concrete warm up quickly and conduct their heat to the air; by contrast, much of the energy absorbed by vegetation dissipates by evapotranspiration (the sum of evaporation and plant transpiration from the Earth’s surface to the atmosphere). Waste heat from our use of energy adds to the heat island.

A typical urban heat island temperature profile

Credit: http://commons.wikimedia.org/wiki/File:Urban_heat_island.svg

Differences in temperature due to the Sun’s uneven heating of the Earth are the driving force behind wind , or moving air. A classic example of how temperature differences cause the wind to blow is the sea breeze. On summer days near the coast, the land warms faster than the sea. This creates a wind circulation pattern in which near the ground wind blows from sea to land. At night, a “land breeze” may blow in the opposite direction as the land cools more quickly than the sea.

A sea breeze circulation on a summer day

Credit:http://www.prh.noaa.gov/hnl/kids/activities.php

Students will use the wind vane to discover from what direction the wind is blowing. Though students will not directly measure wind speed, they can get a sense of it by feeling the wind blow and checking wind speed in weather reports.

Regarding globe measurements

Teachers should have already been trained in the following GLOBE protocols: Surface Ozone, Cloud, Humidity, Surface and Air Temperature, Wind Direction. An Instruction Manual has been included so that you may review how to set up and use each measuring tool. It also may be helpful to review the protocols (available at www.globe.gov) as you prepare for this lesson. Each day, beginning with today (Day Two) students will take all six measurements at the beginning and end of their class periods. Remember that there must be one hour between the measurements. For a teacher whose class periods are less than an hour, students from different classes can take the measurements.

Data sheets for students to record all of their results in an organized way are included in this handbook. It is recommended that the teacher split their classes into six groups or teams, and that each group takes turns using a different instrument. This way, all measurements can be taken at the same time. Small groups allow students to be more hands-on with the measuring tool.

Questions & Answers

what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Rice air curriculum. OpenStax CNX. May 09, 2010 Download for free at http://cnx.org/content/col11200/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Rice air curriculum' conversation and receive update notifications?

Ask