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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>
<!-- Deleted image removed: [[Image:Main HIRDLS instrument.jpg|frame|right|High Resolution Dynamics Limb Sounder]] -->
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.


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]]
{{Space-based meteorological observation}}


==External links==
==References==
{{Reflist}}
* [http://aura.gsfc.nasa.gov/instruments/hirdls/index.html NASA Aura HIRDLS page].


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




[[Category:Atmospheric sounding satellite sensors]]
{{US-spacecraft-stub}}
{{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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