Part 7.

Uploaded on:
Category: Fashion / Beauty
Infrared Light: the Greenhouse Effect, and the Tropsosphere ... (Aurora Borealis) Aurora Australis (Southern Lights) Aurora Borealis Norhern Lights ...
Slide 1

Section 7 Earth and The Terrestrial Worlds

Slide 2

Principles of Comparative Planetology Comparative Planetology is the investigation of the close planetary system through analyzing and comprehension the likenesses and contrasts among the planets. Planetary Geology: The investigation of surface components and the procedures that make them is called geography. Today, we talk about planetary topography, the augmentation of geography to incorporate all the strong bodies in the nearby planetary group.

Slide 3

Viewing the Terrestrial Worlds Spacecraft have gone to and captured the greater part of the earthly universes. Some have even been arrived on! Since surface topography depends to a great extent on a planet\'s inside, we should first peer inside the earthly universes.

Slide 4

Global perspectives and surface close-ups Venus\' surface-air is not appeared. Surface mapped from Megellan shuttle radar information

Slide 5

Venus – Venera Missions (1961-1983) Surface Views of a portion of the earthly universes. Venus, the Moon and Mars have all been arrived on effectively by rocket from Earth. Joins Mars Exploration Rover Mission: The Mission Mars Pathfinder Apollo Lunar Missions (1969-1972) Mars Pathfinder Mission (1996-1997)

Slide 6

Inside the Terrestrial Worlds When subjected to managed stress over millions to billions of years, rough material gradually misshapes and streams. Rock acts more like Silly Puddy TM , which extends when you pull it gradually however breaks on the off chance that you pull it forcefully. The rough earthbound universes got to be round a direct result of rock\'s capacity to stream. At the point when items surpass around 500 km in distance across, gravity can beat the quality of strong shake and make a world circular

Slide 7

Gravity additionally gives the earthbound universes comparative inward structures. Particular layers are framed by separation. Separation is the procedure by which gravity isolates materials as indicated by their thickness. This brought about three layers of varying arrangement inside each earthly planet. Center Mantle Crust

Slide 8

Lithosphere: Outer layer of generally unbending rock that includes the outside and the highest mantle.

Slide 9

Heat streams from the hot inside to the cool outside by conduction and convection. Condution: Heat exchange as an aftereffect of direct contact. Convection: Heat exchange by method for hot material growing and rising and cool material contracting and sinking. A little area of rising and falling material is known as a convection cell.

Slide 10

Shaping Planetary Surfaces There are four principle topographical procedures Impact Cratering : the unearthing of dish molded sorrows (sway holes) by space rocks or comets striking a planet\'s surface. Volcanism: the emission of liquid rock, or magma, from a planet\'s inside onto it\'s surface. Tectonics: the interruption of a planet\'s surface by inside anxieties. Disintegration: the wearing out or developing of geographical elements by wind, water, ice, and other wonders of planetary climate.

Slide 11

Impact Process Ejecta Impact Ejecta Blanket

Slide 12


Slide 13


Slide 14

(Mount St. Helens) c) "Sticky" magma makes steep-slanted stratovolcanoes. Picture by US Geological Survey researcher, Austin Post, on May 18, 1980.

Slide 15

Tectonic Forces at work. Convection Cells

Slide 16

Comparing Planetary Atmospheres

Slide 17

Atmospheric Structure

Slide 19

Visible Light: Warming the Surface and Coloring the Sky Atmospheric gasses diffuse blue light more than they scramble red light. Longer wavelength red light is all the more entering

Slide 20

Infrared Light: the Greenhouse Effect, and the Tropsosphere The Troposphere gets to be hotter than it would on the off chance that it had no nursery gasses. Nursery gasses include: CO 2 Water Vapor

Slide 21

The Greenhouse Effect

Slide 22

Temperatures of the Terrestrial Worlds

Slide 23

Ultraviolet light is invested in the Stratosphere. X-Rays are caught up in the Thermosphere and Exosphere.

Slide 24

The Magnetosphere The Magnetosphere obstructs the Solar Wind This produces two districts where the charged particles get caught – Van Allen Belts.

Slide 26

The connection of the charged particles from the sunlight based wind close to the shafts, creates the: Aurora Borealis (Northern Lights) Aurora Australis (Southern Lights)

Slide 27

Aurora Borealis – Norhern Lights

Slide 28

Atmospheric Origins and Evolution Outgassing from Volcanic movement was most in charge of delivering the world\'s initial air. (Volcanoes radiate H 2 O, CO 2 , N 2 , and sulfur mixes. As life created, it too affected the environment of the Earth, permitting it to end up what it is today. (e.g. plants emit O 2 and devour CO 2 )

Slide 29

Many gasses can escape from the planet if their warm speed is more noteworthy than the departure rate of the planet. Five Major Processes By Which Atmospheres Lose Gas.

Slide 30

A Tour of the Terrestrial Worlds

Slide 31

The Moon 1,738-km sweep, 1.0AU from the Sun Astronaut investigates a little cavity An antiquated magma waterway

Slide 32

Mercury (2,440-km range, 0.39AU from the Sun)

Slide 33

Dust Storm over northern ice top, Mars Global Surveyor Polar Ice Cap (Mars) Viking Orbiter Edge of polar ice top demonstrating layers of ice and clean. Mars (3,397-km sweep, 1.52 AU from the Sun)

Slide 34

Cratering, Volcanism and Tectonics Valles Marineris Heavy cratering in Southern Hemisphere (Mars) Olympus Mons: – biggest shield well of lava in the nearby planetary group

Slide 35

Martian outpouring channels and surge planes Ancient River beds Outflow channels show disastrous flooding Water disintegrated cavity Gullies on a cavity divider framed by water streams?

Slide 36

Venus (6,051-km range, 0.72 AU from Sun) Shield Volcanoes are regular Impact holes on Venus are uncommon Fractured and turned outside

Slide 37

Earth (6, 378 km span, 1.0 AU from the Sun)

Slide 38

Time-Line of Geologic Activity

Slide 39

End of Section

View more...