Apa sih Remote Sensing itu????

What is Remote Sensing?

Definition: 

The science and art of obtaining information about an object, area orphenomenon through the analysis of data acquired by a sensor which is located at a distance from the object, area or phenomenon (Lillesand and Kiefer, 1994)

How is Remote Sensing Used?

1. Mapping the earth’s surface -land and water

2. examining types of objects or features and the quality and quantity of these features

3. distribution of features or objects over space and time

4. understanding spatial and temporal relationships

Platforms for Recording Data

Remotes sensing data may be collected from a variety of platforms, such as:

•aircraft

•satellites

•balloons

•rockets

•space shuttles

The Remote Sensing Model

The RS Model Components for Real Systems (Lillesand and Kiefer, 1994)

1. The energy source

2. The atmosphere

3. The energy/matter interactions (earth’s surface)

4. The sensor

5. The data-handling system

6. Multiple data users

Remote Sensing Applications

Measure and map spatial dimensions from images monitor the dynamics of phenomena of the earth’s surface and atmosphere

1. monitoring vigor and stress of vegetation and environmental quality

2. measuring the temperature of objects

3. detecting and identifying catastrophic sites

4. fire, flood, volcanos, earthquakes, etc.

Remote Sensing History

1839 -Photography invented

1882 -Kites used for aerial photography

1909 -Airplanes used as a platform for photography

1910-20 -WWI -Aerial reconnaissance Beginning of photo interpretation

1920-50 -Aerial photogrammetry was developed

1934 -Radar development for military use

1940s -Colour photography was invented Non-visible (mainly near-infrared)

1950-70 -Further development of non-visible photography, multi-camera photography, colour IR and non-photographic sensors. Very High Resolution Radiometer (VHRR) and launch of weather satellites such as Nimbus and TIROS

1962 -the term “Remote Sensing” appeared
1972 -Launch of Landsat1, originally named ERTS-1
1982 -Second generation of Landsat sensor: Thematic Mapper

1986 -French SPOT-1 High Resolution Visible sensors MSS, TM, HRV used for data collection for large areas all over the world. -Natural resource mapping (agriculture, forstry, wetlands, mineral exploration, mining, etc.)

1988 -Indian Remote Sensing Satellite (IRS) launched
1992 -JERS, Japanese Earth Resources Satellite launched with with L-band radar and visible and IR recording devices
1993 -Launch of SPOT-3
1995 -IRS-3 launched
1995 -Canada launched RADARSAT
1999 -Launch of Landsat-7