Summary
Source: O*Net |
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The Earth, our home, is an amazing system. It has a temperature, mountains, blowing wind, and flowing water. Capturing information about these and other global features can help scientists get a present-day picture about the Earth and help make decisions about our future. But how do scientists gather information? They use sensors, devices that detect and measure physical quantities and then convert them into signals that can be read by an instrument or observer. Remote sensing scientists or technologists oversee the collection of this information and interpret the data. They work with databases to store these large amounts of data and then share the data in reports or in maps.
When a government, business, or other client needs a map, remote sensing scientists or technologists analyze the type of information that the map should include and then decide what type of sensors to use to get that information. The amount of detail required determines what equipment is needed, such as the size of the camera and the type of vehicle that will carry it. In addition to seeing how things look, remote sensing scientists or technologists might need to measure temperature, moisture in the air, and other phenomena. For example, in order to determine the abundance of plant life, remote sensing scientists or technologists use sensors to measure and extract data about chlorophyll levels.
When data comes from satellites, remote sensing scientists and technologists run the information through a series of computer programs to create images and maps. They might use different colors to show where interesting features are, such as different types of forests and crops. They can study the different wavelengths of light shown in satellite images and use that information to assess the condition of the forests. With satellites, large areas of land are visible at once and remote sensing scientists or technologists can create land-cover maps that show thousands of square miles. They provide a broad overview of the Earth’s landscapes.
In addition to making maps, remote sensing scientists or technologists perform research. Every day they collect data about the Earth and its atmosphere using sensors on ocean buoys, weather satellites, and seismic registers. They employ various tools like radio detection and ranging (radar) and light detection and ranging (lidar) placed in satellites, airplanes, and balloons to gather data. With this data and mathematical models, remote sensing scientists or technologists attempt to accurately predict weather, hydrology, and climate.
![]() In this video from NASA, you can learn about how remote-sensing technologies are used to track the global capacity for food production. This video is the first in a six-part series about the applications of remote-sensing techniques. |
Remote sensing scientists or technologists usually work in clean, well-lit, and well-ventilated offices. They rely on computers and their work often involves long hours in front of a computer screen using a keyboard and a mouse. Remote sensing scientists or technologists generally work 40 hours a week. Longer hours and workweeks are not uncommon.
Remote sensing scientists or technologists work in a variety of industries including the private sector, the military, and the federal government.
In addition to university course work, remote sensing scientists or technologists must attend seminars, conferences, and meetings in order to stay abreast of technological advances in the field.
The minimum degree required to gain a position as a remote sensing scientist and technologist is a bachelor's degree in geography, cartography, civil engineering, or related field. Many remote sensing scientists and technologists often have a graduate degree. Candidates must have a PhD in order to teach at the university level. Many remote sensing specialists have degrees in the natural sciences, including forestry, biology, and geology. They often take courses in remote sensing or mapping while earning these degrees.
Because remote sensing scientists and technologists work with analyzing and modeling large amounts of data, it is useful for them to take classes in statistics, geometry, and matrix algebra.
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