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Remote Sensing Using Picasso-Cena - Contenido educativo

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Subido el 28 de mayo de 2007 por EducaMadrid

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NASA Connect Segment studying the atmosphere with Picasso-Cena, a new technological satellite, to explore the affects of aerosols in the atmosphere and how it will affect the environment.

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Thanks a lot Shelly. Hey, while you guys got connected to the web, Van and I met up with Dr. Ali Omar. 00:00:00

He's a scientist who studies the atmosphere using satellites, and 00:00:05

hopefully he'll be able to convince Van of the importance of keeping his car emissions low. 00:00:09

Thanks Jennifer. First of all, let me welcome you to Hampton University's computer lab, where some of our students are studying atmospheric science. 00:00:13

So Dr. Omar, how does Picasso Sena measure aerosols in the atmosphere? 00:00:20

Well Van, of all the aerosol measuring systems you have seen, 00:00:27

LiDAR, SAGE II, and the aerosol sampler used by students at St. Stephen's School have their uses, but they also have their limitations. 00:00:31

Picasso Sena is being developed for launch in 2003 to give us a more complete picture of our atmosphere. 00:00:40

The Picasso Sena mission will greatly improve our understanding of the nature and magnitude of radiative effects of aerosols and clouds. 00:00:47

There are many uncertainties as to whether a cloud heats or cools the Earth's surface. 00:00:55

This is due to inadequate knowledge of how cloud layers are distributed within the atmosphere. 00:01:01

Picasso Sena will help us obtain more complete observations of cloud distributions and properties. 00:01:07

Picasso Sena will also use LiDAR in combination with an instrument called a spectrometer. 00:01:13

The spectrometer is a perceived remote sensing instrument that measures the radiance of scattered sunlight. 00:01:19

Using both LiDAR and spectrometer observations will provide us with a more accurate measure of aerosol and cloud properties than either technique alone. 00:01:26

Changes in climate are inevitable, but the rapid pace of change that may be starting to take place presents a potential threat to our planet. 00:01:35

The new knowledge from Picasso Sena will improve our ability to make accurate predictions about these changes. 00:01:44

Predictions to help world leaders define policies that affect us all. 00:01:52

So you see, Van, a little bit of emissions from your car combined with all the other emissions affect us all. 00:01:57

We know the world's population is growing and there are certain things we need to do now in order to protect our environment. 00:02:03

One of those things is getting your catalytic converter fixed. 00:02:09

Okay. Well, thank you very much, Dr. Omar, for all your help. 00:02:13

Thanks a lot, Dr. Omar. 00:02:16

You're welcome. 00:02:17

Appreciate it. 00:02:17

Well, we'd like to thank everyone who helped out with today's show, especially all the students who were in the program, 00:02:18

the NASA researchers, Hampton University, and of course, Dr. Shelley Canright. 00:02:24

If you would like a videotaped copy of this NASA Connect show and the Educator's Guide lesson plans, 00:02:28

contact CORE, the NASA Central Operation of Resources for Educators. 00:02:34

All this information and more is located on the NASA Connect website. 00:02:38

So, for Van and the rest of the NASA Connect crew, I'm Jennifer Pulley. 00:02:43

So, Van, what are you going to do? 00:02:47

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Idioma/s:

Materias:

Matemáticas

Niveles educativos:

▼ Mostrar / ocultar niveles

- - Nivel Intermedio

Autor/es:

NASA LaRC Office of Education

Subido por:

EducaMadrid

Licencia:

Reconocimiento - No comercial - Sin obra derivada

Visualizaciones:

356

Fecha:

28 de mayo de 2007 - 16:53

Visibilidad:

Público

Enlace Relacionado:

NASAs center for distance learning

Duración:

02′ 52″

Relación de aspecto:

4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.

Resolución: