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IRS ResourceSat LISS

IRS, Resourcesat, and LISS are terms related to India's Earth observation satellite program. 


The Linear Imaging SelfScanning Sensor (LISS) is a type of remote sensing sensor technology used on various Earth observation satellites, particularly in India's Indian Remote Sensing (IRS) satellite program. Here's an explanation of LISS:


1. Imaging Technology: LISS is designed to capture highresolution imagery of the Earth's surface. It operates by scanning the terrain below and capturing data in the form of digital images.


2. SelfScanning: The term "SelfScanning" in LISS refers to its ability to scan the Earth's surface automatically without the need for any external mechanical scanning mechanisms. This makes LISS sensors more reliable and less prone to mechanical failures.


3. Linear Array: LISS sensors typically use a linear array of detectors, also known as a pushbroom scanner. This array consists of multiple lightsensitive detectors aligned in a row, allowing for the simultaneous capture of multiple pixels of information in a single pass over the Earth's surface.


4. Spectral Bands: LISS sensors are often equipped with multiple spectral bands, including visible and nearinfrared wavelengths. These different bands allow for the capture of images in various parts of the electromagnetic spectrum, enabling the extraction of valuable information about land cover, vegetation health, and more.


5. HighResolution Imaging: LISS sensors are known for their ability to provide highresolution images, which means they can capture fine details on the Earth's surface. This high level of detail makes them valuable for applications such as landuse mapping, urban planning, agricultural monitoring, and disaster management.


6. Applications: LISS imagery has been widely used in a range of applications, including agriculture, forestry, environmental monitoring, disaster response, and urban development planning. The data captured by LISS sensors helps governments, researchers, and industries make informed decisions and monitor changes in the Earth's landscape.


1. IRS (Indian Remote Sensing Satellite):

    The Indian Remote Sensing Satellite (IRS) program is a series of Earth observation satellites developed and operated by the Indian Space Research Organisation (ISRO).

    These satellites are designed to collect various types of Earthrelated data, including imagery and geospatial information.

    IRS satellites have been used for a wide range of applications, including agriculture, forestry, urban planning, disaster management, and environmental monitoring.

    The IRS program has seen multiple generations of satellites with progressively improved capabilities.


2. Resourcesat:

    Resourcesat is a series of Earth observation satellites within the IRS program, specifically focused on natural resource management and environmental monitoring.

    The Resourcesat series includes Resourcesat1, launched in 2003, and Resourcesat2, launched in 2011.

    These satellites are equipped with advanced remote sensing sensors for highresolution imaging and data collection.


In summary, IRS represents India's Earth observation satellite program, which includes a variety of satellites used for monitoring and collecting data related to the Earth's surface and environment. Resourcesat is a specific series within this program focused on natural resource management, and LISS is one of the sensor technologies used on these satellites to capture imagery and data. These initiatives play a crucial role in supporting various sectors in India, such as agriculture, forestry, and disaster management, among others.






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