Articles | Volume 10, issue 2
https://doi.org/10.5194/amt-10-681-2017
https://doi.org/10.5194/amt-10-681-2017
Research article
 | 
03 Mar 2017
Research article |  | 03 Mar 2017

Technical note: On the intercalibration of HIRS channel 12 brightness temperatures following the transition from HIRS 2 to HIRS 3/4 for ice saturation studies

Klaus Gierens and Kostas Eleftheratos

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Cited articles

Bates, J. and Jackson, D.: Trends in upper-tropospheric humidity, Geophys. Res. Lett., 28, 1695–1698, 2001.
Buehler, S., Kuvatov, M., John, V., Milz, M., Soden, B., Jackson, D., and Notholt, J.: An upper tropospheric humidity data set from operational satellite microwave data, J. Geophys. Res., 113, D14110, https://doi.org/10.1029/2007JD009314, 2008.
Cantrell, C. A.: Technical Note: Review of methods for linear least-squares fitting of data and application to atmospheric chemistry problems, Atmos. Chem. Phys., 8, 5477–5487, https://doi.org/10.5194/acp-8-5477-2008, 2008.
Chung, E.-S., Soden, B., Sohn, B., and Shi, L.: Upper-tropospheric moistening in response to anthropogenic warming, P. Natl. Acad. Sci. USA, 111, 11636–11641, 2014.
Chung, E.-S., Soden, B., Huang, X., Shi, L., and John, V.: An assessment of the consistency between satellite measurements of upper tropospheric water vapor, J. Geophys. Res., 121, 2874–2887, https://doi.org/10.1002/2015JD024496, 2016.
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Short summary
For studies of trends in ice supersaturation in the upper troposphere we need very long time series of upper tropospheric humidity. The set of HIRS channel 12 satellite data can be used for this purpose, since Shi and Bates (2011) had provided an intercalibrated time series of channel 12 brightness temperatures. In the current paper we improve the intercalibration at the low tail of brightness temperatures, which leads to a more homogeneous time series of upper-tropospheric humidities.