MISR

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MISR

MISR (Multi-angle Imaging SpectroRadiometer) is a scientific instrument on the Terra

Terra (satellite)

Terra is a multi-national NASA scientific research satellite in a sun-synchronous orbit around the Earth. It is the flagship of the Earth Observing System ....
satellite launched by NASA

NASA

The National Aeronautics and Space Administration is an agency of the Federal government of the United States, responsible for the nation's public list of space agencies....
on December 18, 1999. The device is designed to measure the solar radiation reflected by the Earth system (planetary surface and atmosphere) in various directions and spectral bands; it became operational in February 2000.

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MISR (Multi-angle Imaging SpectroRadiometer) is a scientific instrument on the Terra

Terra (satellite)

Terra is a multi-national NASA scientific research satellite in a sun-synchronous orbit around the Earth. It is the flagship of the Earth Observing System ....
satellite launched by NASA

NASA

Climatology

Climatology is the study of climate, scientifically defined as weather conditions averaged over a period of time, and is a branch of the atmospheric sciences....
and monitoring terrestrial processes.

The MISR instrument consists of an innovative configuration of nine separate digital cameras that gather data in four different spectral bands of the solar spectrum. One camera points toward the nadir

Nadir

The nadir is the direction pointing directly below a particular location . Since the concept of being below is itself somewhat vague, scientists define the nadir in more rigorous terms....
, and the others provide forward and aftward view angles at 26.1°, 45.6°, 60.0°, and 70.5°. As the instrument flies overhead, each region of the Earth's surface is successively imaged by all nine cameras in each of four wavelength

Wavelength

In physics, wavelength is the distance between repeating units of a propagating wave of a given frequency. It is commonly designated by the Greek language letter lambda ....
s (blue, green, red, and near-infrared).

The data gathered by MISR are useful in climatological studies concerning the disposition of the solar

Sun

The Sun , a G V star, is the star at the center of the Solar System. The Earth and other matter orbit the Sun, which by itself accounts for about 98.6% of the Solar System's mass....
radiation flux

Radiation flux

Radiation flux is a measure of the flow of Particle radiation from a given radioactive source.Radiation flux density is a related measure that adds area dimensions to the above definition - for example, radiation-flux/square-centimeter....
in the Earth's system. MISR is specifically designed to monitor the monthly, seasonal, and long-term trends of atmospheric aerosol

Particulate

Particulates, alternatively referred to as particulate matter or fine particles, are tiny particles of solid or liquid suspended in a gas or liquid....
particle concentrations including those formed by natural sources and by human activities, upper air winds and cloud

Cloud

A cloud is a visible mass of Drop or frozen crystals floating in the Celestial body atmosphere above the surface of the Earth or another planetary body....
cover, as well as the characterization of land surface properties, including the structure of vegetation

Vegetation

refers to the flora system of a specific region....
canopies, the distribution of land cover types, and other terrestrial properties.

MISR

See also

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