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Instruments > Earth Remote Sensing Instruments > Passive Remote Sensing > Profilers/Sounders > MOPITT

Preferred term

MOPITT  

Definition

  • The objective of the Measurement of Pollution in the Troposphere (MOPITT) spectrometer is to measure emitted and reflected infrared radiance in the atmospheric column to permit retrieval of tropospheric carbon monoxide (CO) profiles and total column methane. Observations of CO and methane will be used to study how these gases interact with the surface, ocean, and biomass systems. The MOPITT instrument is bases on the principle of correlation spectroscopy utilizing both pressure-modulated and length-modulated gas cells, with detectors at 2.3, 2.4, and 4.7 micrometer. Atmospheric profiles of CO are measured with the 4.7 micrometer detector. CO and methane are measured by the 2.4 and 2.3 micrometer channels, respectively, sense solar radiation reflected from the surface. The MOPITT is a scanning instrument with a field-of-view of 1.8 degrees (22-km footprint at nadir). The scan line consists of 28 pixels, each at 1.8 degree increments with a maximum scan angle of 25.2 degrees off-axis (swath width of 620-km). MOPITT data products are expected to include gridded retrievals of methane with a horizontal resolution of 120 km at 1 % accuracy and gridded CO soundings with 10 % accuracy in three vertical layers between 0 and 15 km. The MOPITT instrument was launched on the NASA Earth Observing System (EOS) Terra spacecraft on December 18, 1999. Key MOPITT Facts: Joint with Canada Heritage: Measurement of Air Pollution from Satellites (MAPS), Pressure Modulator Radiometer (PMR), Stratospheric and Mesospheric Sounder (SAMS), and Improved Stratospheric and Mesospheric Sounder (ISAMS) instruments Instrument Type: Eight-channel radiometer CO Concentration Accuracy: 10% CH4 Column Abundance Accuracy: 1% Swath: 640 km (29 fields of view) Spatial Resolution (each pixel): 22 km ? 22 km (at nadir) Dimensions: 115 cm x 93 cm x 57 cm (stowed), 115 cm x 105 cm x 71 cm (deployed) Mass: 192 kg Power: 250 W (average), 260 W (peak) Duty Cycle: 100% Data Rate: 28 kbps Thermal Control: 80 K Stirling-cycle cooler, capillary-pumped cold plate and passive radiation Thermal Operating Range: 25°C (instrument), 100 K (detectors) Instrument IFOV: 22 km across track, 88 km along track (1.8° x 7.2° x 4° pixels) Spectral Range: Correlation spectroscopy utilizing both pressure and length-modulated gas cells, with detectors at 2.3, 2.4, and 4.7 µm Direct Broadcast: No; Rapid Response processing available Prime Contractor: COM DEV The Canadian Space Agency provided the instrument More Information: https://terra.nasa.gov/about/terra-instruments/mopitt [Summary provided by NASA] Group: Instrument_Details Entry_ID: MOPITT Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Profilers/Sounders Short_Name: MOPITT Long_Name: Measurements Of Pollution In The Troposphere End_Group Group: Instrument_Associated_Sensors Short_Name: ISAMS Short_Name: MAPS Short_Name: SAMS Short_Name: 2.4um Radiometer Short_Name: 4.7um Radiometer End_Group Group: Associated_Platforms Short_Name: TERRA End_Group Group: Spectral_Frequency_Information Number_Channels: 8 Spectral_Frequency_Coverage_Range: 4.7 µm, 2.4 µm, 2.3 µm End_Group Online_Resource: https://terra.nasa.gov/about/terra-instruments/mopitt Online_Resource: https://mopitt.physics.utoronto.ca/ Online_Resource: https://www2.acom.ucar.edu/mopitt Creation_Date: 2007-02-09 Group: Instrument_Logistics Data_Rate: 28 kbps Instrument_Start_Date: 1999-12-18 Instrument_Owner: Canada/CSA End_Group End_Group (en)

Broader concept

Change note

  • 2015-05-12 13:29:28.0 [saritz] Changed Nimbus to mixed case. update AltLabel (Measurements of Pollution In The Troposphere);
  • 2018-02-12 12:56:41.0 [sritz] update Resource (image); insert WeightedRelation (id: null related concept uuid: 7182c726-b019-4b03-93ae-12b66867a386 relationship type: null relationship value: null generated by: null);
  • 2018-02-12 12:57:18.0 [sritz] update WeightedRelation (Instrument-Sensor); update WeightedRelation (1);
  • 2018-02-12 12:59:57.0 [sritz] insert WeightedRelation (id: null related concept uuid: 1f08e989-bc85-4cea-ab1f-7774c89d3836 relationship type: null relationship value: null generated by: null);
  • 2018-02-12 13:00:21.0 [sritz] update WeightedRelation (Instrument-Sensor); update WeightedRelation (1);
  • 2018-02-12 13:03:53.0 [sritz] update Definition (The objective of the Measurement of Pollution in the Troposphere (MOPITT) spectrometer is to measure emitted and reflected infrared radiance in the atmospheric column to permit retrieval of tropospheric carbon monoxide (CO) profiles and total column methane. Observations of CO and methane will be used to study how these gases interact with the surface, ocean, and biomass systems. The MOPITT instrument is bases on the principle of correlation spectroscopy utilizing both pressure-modulated and length-modulated gas cells, with detectors at 2.3, 2.4, and 4.7 micrometer. Atmospheric profiles of CO are measured with the 4.7 micrometer detector. CO and methane are measured by the 2.4 and 2.3 micrometer channels, respectively, sense solar radiation reflected from the surface. The MOPITT is a scanning instrument with a field-of-view of 1.8 degrees (22-km footprint at nadir). The scan line consists of 28 pixels, each at 1.8 degree increments with a maximum scan angle of 25.2 degrees off-axis (swath width of 620-km). MOPITT data products are expected to include gridded retrievals of methane with a horizontal resolution of 120 km at 1 % accuracy and gridded CO soundings with 10 % accuracy in three vertical layers between 0 and 15 km. The MOPITT instrument was launched on the NASA Earth Observing System (EOS) Terra spacecraft on December 18, 1999. Key MOPITT Facts: Joint with Canada Heritage: Measurement of Air Pollution from Satellites (MAPS), Pressure Modulator Radiometer (PMR), Stratospheric and Mesospheric Sounder (SAMS), and Improved Stratospheric and Mesospheric Sounder (ISAMS) instruments Instrument Type: Eight-channel radiometer CO Concentration Accuracy: 10% CH4 Column Abundance Accuracy: 1% Swath: 640 km (29 fields of view) Spatial Resolution (each pixel): 22 km ? 22 km (at nadir) Dimensions: 115 cm x 93 cm x 57 cm (stowed), 115 cm x 105 cm x 71 cm (deployed) Mass: 192 kg Power: 250 W (average), 260 W (peak) Duty Cycle: 100% Data Rate: 28 kbps Thermal Control: 80 K Stirling-cycle cooler, capillary-pumped cold plate and passive radiation Thermal Operating Range: 25°C (instrument), 100 K (detectors) Instrument IFOV: 22 km across track, 88 km along track (1.8° x 7.2° x 4° pixels) Spectral Range: Correlation spectroscopy utilizing both pressure and length-modulated gas cells, with detectors at 2.3, 2.4, and 4.7 µm Direct Broadcast: No; Rapid Response processing available Prime Contractor: COM DEV The Canadian Space Agency provided the instrument [Summary provided by NASA] Group: Instrument_Details Entry_ID: MOPITT Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Profilers/Sounders Short_Name: MOPITT Long_Name: Measurements Of Pollution In The Troposphere End_Group Group: Instrument_Associated_Sensors Short_Name: ISAMS Short_Name: MAPS Short_Name: SAMS Short_Name: 2.4um Radiometer Short_Name: 4.7um Radiometer End_Group Group: Associated_Platforms Short_Name: TERRA End_Group Group: Spectral_Frequency_Information Number_Channels: 8 Spectral_Frequency_Coverage_Range: 4.7 µm, 2.4 µm, 2.3 µm End_Group Online_Resource: https://terra.nasa.gov/about/terra-instruments/mopitt Online_Resource: http://www.atmosp.physics.utoronto.ca/MOPITT/home.html Online_Resource: https://www2.acom.ucar.edu/mopitt Sample_Image: http://www.atmosp.physics.utoronto.ca/MOPITT/fm/open_d.jpg Creation_Date: 2007-02-09 Group: Instrument_Logistics Data_Rate: 28 kbps Instrument_Start_Date: 1999-12-18 Instrument_Owner: Canada/CSA End_Group End_Group);
  • 2020-02-13 16:32:50.0 [sritz] update Definition (The objective of the Measurement of Pollution in the Troposphere (MOPITT) spectrometer is to measure emitted and reflected infrared radiance in the atmospheric column to permit retrieval of tropospheric carbon monoxide (CO) profiles and total column methane. Observations of CO and methane will be used to study how these gases interact with the surface, ocean, and biomass systems. The MOPITT instrument is bases on the principle of correlation spectroscopy utilizing both pressure-modulated and length-modulated gas cells, with detectors at 2.3, 2.4, and 4.7 micrometer. Atmospheric profiles of CO are measured with the 4.7 micrometer detector. CO and methane are measured by the 2.4 and 2.3 micrometer channels, respectively, sense solar radiation reflected from the surface. The MOPITT is a scanning instrument with a field-of-view of 1.8 degrees (22-km footprint at nadir). The scan line consists of 28 pixels, each at 1.8 degree increments with a maximum scan angle of 25.2 degrees off-axis (swath width of 620-km). MOPITT data products are expected to include gridded retrievals of methane with a horizontal resolution of 120 km at 1 % accuracy and gridded CO soundings with 10 % accuracy in three vertical layers between 0 and 15 km. The MOPITT instrument was launched on the NASA Earth Observing System (EOS) Terra spacecraft on December 18, 1999. Key MOPITT Facts: Joint with Canada Heritage: Measurement of Air Pollution from Satellites (MAPS), Pressure Modulator Radiometer (PMR), Stratospheric and Mesospheric Sounder (SAMS), and Improved Stratospheric and Mesospheric Sounder (ISAMS) instruments Instrument Type: Eight-channel radiometer CO Concentration Accuracy: 10% CH4 Column Abundance Accuracy: 1% Swath: 640 km (29 fields of view) Spatial Resolution (each pixel): 22 km ? 22 km (at nadir) Dimensions: 115 cm x 93 cm x 57 cm (stowed), 115 cm x 105 cm x 71 cm (deployed) Mass: 192 kg Power: 250 W (average), 260 W (peak) Duty Cycle: 100% Data Rate: 28 kbps Thermal Control: 80 K Stirling-cycle cooler, capillary-pumped cold plate and passive radiation Thermal Operating Range: 25°C (instrument), 100 K (detectors) Instrument IFOV: 22 km across track, 88 km along track (1.8° x 7.2° x 4° pixels) Spectral Range: Correlation spectroscopy utilizing both pressure and length-modulated gas cells, with detectors at 2.3, 2.4, and 4.7 µm Direct Broadcast: No; Rapid Response processing available Prime Contractor: COM DEV The Canadian Space Agency provided the instrument More Information: https://terra.nasa.gov/about/terra-instruments/mopitt [Summary provided by NASA] Group: Instrument_Details Entry_ID: MOPITT Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Profilers/Sounders Short_Name: MOPITT Long_Name: Measurements Of Pollution In The Troposphere End_Group Group: Instrument_Associated_Sensors Short_Name: ISAMS Short_Name: MAPS Short_Name: SAMS Short_Name: 2.4um Radiometer Short_Name: 4.7um Radiometer End_Group Group: Associated_Platforms Short_Name: TERRA End_Group Group: Spectral_Frequency_Information Number_Channels: 8 Spectral_Frequency_Coverage_Range: 4.7 µm, 2.4 µm, 2.3 µm End_Group Online_Resource: https://terra.nasa.gov/about/terra-instruments/mopitt Online_Resource: https://mopitt.physics.utoronto.ca/ Online_Resource: https://www2.acom.ucar.edu/mopitt Creation_Date: 2007-02-09 Group: Instrument_Logistics Data_Rate: 28 kbps Instrument_Start_Date: 1999-12-18 Instrument_Owner: Canada/CSA End_Group End_Group); update Definition (https://terra.nasa.gov/about/terra-instruments/mopitt); delete Resource (null);

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https://gcmd.earthdata.nasa.gov/kms/concept/3d148e55-a196-4779-ad6e-71a6acb5ec92

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