Moderate Resolution Imaging Spectroradiometer: Difference between revisions

Revision as of 12:46, 23 October 2019

Revision as of 07:08, 4 November 2019

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[[File:Exploded View of MODIS Subsystems.gif|thumbnail|Exploded view of the MODIS subsystems.]]

[[Image:The Water Planet.jpg|thumb|This detailed, photo-like view of Earth is based largely on observations from MODIS.]]

The '''Moderate Resolution Imaging Spectroradiometer''' ('''MODIS''') is a [[Payload (air and space craft)|payload]] [[imaging sensor]] built by Santa Barbara Remote Sensing<ref>{{cite web|url=http://modis.gsfc.nasa.gov/about/components.php|title=MODIS Components|accessdate= 11 August 2015}}</ref> that was launched into [[Earth orbit]] by [[NASA]] in 1999 on board the [[Terra (satellite)|Terra]] ([[Earth Observing System|EOS]] AM) satellite, and in 2002 on board the [[Aqua (satellite)|Aqua]] (EOS PM) satellite. The instruments capture data in 36 spectral bands ranging in wavelength from 0.4 [[µm]] to 14.4&nbsp;µm and at varying spatial resolutions (2 bands at 250 m, 5 bands at 500 m and 29 bands at 1&nbsp;km). Together the instruments image the entire Earth every 1 to 2 days. They are designed to provide measurements in large-scale global dynamics including changes in Earth's [[cloud cover]], [[radiation budget]] and processes occurring in the oceans, on land, and in the [[Atmosphere of Earth#Structure of the atmosphere|lower atmosphere]]. MODIS utilizes four on-board calibrators in addition to the space view in order to provide in-flight calibration: solarlunar diffuser (SD), solar diffuser stability monitor (SDSM), spectral radiometric calibration assembly (SRCA), and a v-groove [[black body]].<ref>{{cite web|url=http://modis.gsfc.nasa.gov/about/design.php|title=MODIS Design|accessdate= 11 August 2015}}</ref> MODIS has used the [[Marine Optical Buoy#Contribution|marine optical buoy]] for vicarious calibration. MODIS is succeeded by the [[VIIRS]] instrument on board the [[Suomi NPP]] satellite launched in 2011 and future [[Joint Polar Satellite System]] (JPSS) satellites.

The MODIS characterization support team (MCST) is dedicated to the production of high-quality MODIS calibrated product which is a precursor to every geophysical science product. A detailed description of the MCST mission statement and other details can be found at MCST Web.<ref>{{cite web|url=http://mcst.gsfc.nasa.gov/|title=MODIS Characterization Support Team|accessdate= 18 July 2015}}</ref>