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The '''high-resolution dynamics limb sounder''' ('''HIRDLS''') is an instrument on board the [[NASA]] [[Aura (satellite)|Aura]]. It follows in the heritage of LRIR (Nimbus-6), LIMS and SAMS (Nimbus-7), ISAMS and CLAES (UARS). It was designed to observe global distribution of temperature and concentrations of O<sub>3</sub>, H<sub>2</sub>O, CH<sub>4</sub>, N<sub>2</sub>O, NO<sub>2</sub>, HNO<sub>3</sub>, N<sub>2</sub>O<sub>5</sub>, CFC-11, CFC-12, ClONO<sub>2</sub>, and aerosols in the upper troposphere, stratosphere, and mesosphere.<ref>{{Cite web|url=https://wdc.dlr.de/sensors/|title=Missions & Sensors|last=|first=|website=The World Data Center for Remote Sensing of the Atmosphere|publisher=|access-date=8 December 2016}}</ref>
[[Image:Main HIRDLS instrument.jpg|frame|right|High Resolution Dynamics Limb Sounder]]
'''HIRDLS''': The High Resolution Dynamics Limb Sounder is an instrument on board the [[NASA]] [[Aura (satellite) | Aura]]. It follows in the heritage of LRIR (Nimbus-6), LIMS and SAMS (Nimbus-7), ISAMS and CLAES (UARS). It was designed to observe global distribution of temperature and concentrations of O3, H2O, CH4, N2O, NO2, HNO3, N2O5, CFC11, CFC12, ClONO2, and aerosols in the upper troposphere, stratosphere, and mesosphere.


After launch, activation of the HIRDLS instrument revealed that the optical path was blocked so that 20% of the aperture could view the earth's atmosphere. Engineering studies suggest that a piece of thermal blanketing material ruptured from the back of the instrument during the explosive decompression of launch. Attempts to remove this material mirror failed. However, even with the 80% blockage, measurements at high vertical resolution can be made at one scan angle.
After launch, activation of the HIRDLS instrument revealed that the optical path was blocked so that only 20% of the aperture could view the Earth's atmosphere. Engineering studies suggest that a piece of thermal blanketing material ruptured from the back of the instrument during the explosive decompression of launch. Attempts to remove this material mirror failed. However, even with the 80% blockage, measurements at high vertical resolution can be made at one scan angle. HIRDLS failed in March 2008.<ref>{{Cite web|url=/http://aura.gsfc.nasa.gov/instruments/hirdls/index.html|title=About HIRDLS|website=NASA Aura HIRDLS page}}</ref>


==See also==
==See also==
*[[Atmospheric Chemistry Observational Databases]]
*[[Atmospheric chemistry observational databases]]
*[[International Global Atmospheric Chemistry]]
*[[International Global Atmospheric Chemistry]]
*[[Microwave limb sounder]]
{{Met rem}}

==References==
{{Reflist}}


==External links==
==External links==
* [https://web.archive.org/web/20070202120817/http://aura.gsfc.nasa.gov/instruments/hirdls/index.html NASA Aura HIRDLS page].


[http://aura.gsfc.nasa.gov/instruments/hirdls/index.html NASA Aura HIRDLS page].


[[Category:Satellite meteorology and remote sensing]]
[[Category:Atmospheric sounding satellite sensors]]
{{US-spacecraft-stub}}

Latest revision as of 14:58, 22 December 2023

The high-resolution dynamics limb sounder (HIRDLS) is an instrument on board the NASA Aura. It follows in the heritage of LRIR (Nimbus-6), LIMS and SAMS (Nimbus-7), ISAMS and CLAES (UARS). It was designed to observe global distribution of temperature and concentrations of O3, H2O, CH4, N2O, NO2, HNO3, N2O5, CFC-11, CFC-12, ClONO2, and aerosols in the upper troposphere, stratosphere, and mesosphere.[1]

After launch, activation of the HIRDLS instrument revealed that the optical path was blocked so that only 20% of the aperture could view the Earth's atmosphere. Engineering studies suggest that a piece of thermal blanketing material ruptured from the back of the instrument during the explosive decompression of launch. Attempts to remove this material mirror failed. However, even with the 80% blockage, measurements at high vertical resolution can be made at one scan angle. HIRDLS failed in March 2008.[2]

See also

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References

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  1. ^ "Missions & Sensors". The World Data Center for Remote Sensing of the Atmosphere. Retrieved 8 December 2016.
  2. ^ [/http://aura.gsfc.nasa.gov/instruments/hirdls/index.html "About HIRDLS"]. NASA Aura HIRDLS page. {{cite web}}: Check |url= value (help)
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