REMOTE SENSING IN SPACE

Presentation By

Krishna Gaihre

BEX/066/422

What is Remote Sensing?

• Remote sensing is the science(and to some extent, art) of acquiring information about the Earth's surface without actually being in contact with it. This is done by sensing and recording reflected or emitted energy and processing, analyzing, and applying that information.

Elements of Remote Sensing :

1. Energy Source or Illumination (A)

2. Radiation and the Atmosphere (B)

3. Interaction with the Target (C)

4. Recording of Energy by the

Sensor (D)

5. Transmission, Reception, and

Processing (E)

6. Interpretation and Analysis (F)

Application (G)

Remote sensing Elements

Application Of Remote Sensing• Space Exploration(Moon , Mars ,Sun ,…)• Environmental monitoring• Scientific assessment of meteorological images• Measure the solar incident radiation on ground• Land Cover• Data pertaining to the coastal zone• Delineation of coastal landforms and tidal • Impact of

deforestation onglobal climate

• Agriculture

New Technology Trends in Remote Sensing

1. Miniaturization of electronics

2. High-performance onboard computing

3. Large, lightweight structures

4. Increased power active sensing

5. Compact optics

6. Frequency flexibility Figure:-Light weight Space –craft

REMOTE SENSING

Arecibo Observatory Antenna, World Largest Single Aperture Radio TelescopePuerto Rico ,USA

REMOTE SENSING IN SPACE By Using Radio Pulses

Figure:-Astronomical telescope

NASA Mars Exploration Rover-Curiosity

Interface Region Imaging Spectrograph (IRIS)

What is IRIS Designed to do?

• Understand the Sun and its effects fundamental physical process of the space on Earth and the solar system.

• Develop the capability to predict the extreme and dynamic conditions in space in order to maximize the safety and productivity of Human

and robotic explorers.

Sun surface with different layer

IRIS Satellite With Ultraviolet Telescope

Instrument Consists of• Telescope + Spectrograph

1.Optics

2.Coatings

3.Filters

4.CCD Detectors

5.Mechanisms

6.Structures, Thermal

System

• Guide Telescope

• Instrument Electronics

• Flight Software

Sciences and Exploration• Understanding of energy

transport into the corona and solar wind.

• Advance Sun-Earth connection studies by tracing the flow of energy and plasma into the corona and heliosphere .

• IRIS obtains high, resolution UV spectra and images of the sun's chromosphere

• IRIS will obtain UV spectra and images with high resolution in space (1/3 arcsec) and time (1s) focused on the chromosphere and transition region of the Sun, a complex dynamic interface region between the photosphere and corona.

What Can IRIS Do?The extreme ultraviolet image of the sun was taken by the Solar

Dynamics Observatory (SDO). This tri-color composite image tracesdifferent gas temperatures. Reds being cooler and blues hotter. IRIS

will use ultraviolet images of the chromosphere and transition region(shown in the simulated IRIS image insert) to similarly diagnose

conditions in the interface region. IRIS uses spectroscopy (overlayedgraph) to learn about the detailed flow of energy and gases.

Interface Region that lies between the sun’s photosphereand corona..

Space Application Challenge Organized By NASA

THANKYOU!!

QUERIES ARE WELCOME…………..