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Article: Application of deep convective cloud albedo observation to satellite-based study of the terrestrial atmosphere: Monitoring the stability of spaceborne measurements and assessing absorption anomaly

TitleApplication of deep convective cloud albedo observation to satellite-based study of the terrestrial atmosphere: Monitoring the stability of spaceborne measurements and assessing absorption anomaly
Authors
KeywordsAbsorption Anomaly
Albedo
Deep Convective Cloud
Instrument Stability
Radiative Transfer
Issue Date2004
PublisherIEEE
Citation
IEEE Transactions on Geoscience and Remote Sensing, 2004, v. 42 n. 11, p. 2594-2599 How to Cite?
AbstractAn objective method is developed to monitor the stability of spaceborne instruments, aimed at distinguishing climate trend from instrument drift in satellite-based climate observation records. This method is based on four-years of Clouds and the Earth's Radiant Energy System (CERES) broadband observations of deep convective cloud systems with cloud-top temperature lower than 205 K and with large optical depths. The implementation of this method to the CERES instrument stability analysis reveals that the monthly albedo distributions are practically the same for deep convective clouds with CERES measurements acquired from both the Tropical Rainfall Measuring Mission and Terra satellite platforms, indicating that CERES instruments are well calibrated and stable during both missions. Furthermore, with a nonlinear regression neural network narrowband-broadband conversion, this instrument-stability monitoring method can also be applied to narrowband instruments such as the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Visible Infrared Scanner (MRS). The results show that the drifts associated with both VIRS and MODIS instruments are less than 1% during a four-year period. Since the CERES albedo measurements are highly accurate, the absorptance of these opaque clouds can be reliably estimated. The absorptions of these clouds from observations are around 25%, whereas the absorptions from theory can be as low as 18%, depending on ice cloud microphysics.
Persistent Identifierhttp://hdl.handle.net/10722/91167
ISSN
2015 Impact Factor: 3.36
2015 SCImago Journal Rankings: 1.975
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHu, Yen_HK
dc.contributor.authorWielicki, BAen_HK
dc.contributor.authorYang, Pen_HK
dc.contributor.authorStackhouse Jr, PWen_HK
dc.contributor.authorLin, Ben_HK
dc.contributor.authorYoung, DFen_HK
dc.date.accessioned2010-09-17T10:14:02Z-
dc.date.available2010-09-17T10:14:02Z-
dc.date.issued2004en_HK
dc.identifier.citationIEEE Transactions on Geoscience and Remote Sensing, 2004, v. 42 n. 11, p. 2594-2599en_HK
dc.identifier.issn0196-2892en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91167-
dc.description.abstractAn objective method is developed to monitor the stability of spaceborne instruments, aimed at distinguishing climate trend from instrument drift in satellite-based climate observation records. This method is based on four-years of Clouds and the Earth's Radiant Energy System (CERES) broadband observations of deep convective cloud systems with cloud-top temperature lower than 205 K and with large optical depths. The implementation of this method to the CERES instrument stability analysis reveals that the monthly albedo distributions are practically the same for deep convective clouds with CERES measurements acquired from both the Tropical Rainfall Measuring Mission and Terra satellite platforms, indicating that CERES instruments are well calibrated and stable during both missions. Furthermore, with a nonlinear regression neural network narrowband-broadband conversion, this instrument-stability monitoring method can also be applied to narrowband instruments such as the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Visible Infrared Scanner (MRS). The results show that the drifts associated with both VIRS and MODIS instruments are less than 1% during a four-year period. Since the CERES albedo measurements are highly accurate, the absorptance of these opaque clouds can be reliably estimated. The absorptions of these clouds from observations are around 25%, whereas the absorptions from theory can be as low as 18%, depending on ice cloud microphysics.en_HK
dc.languageengen_HK
dc.publisherIEEEen_HK
dc.relation.ispartofIEEE Transactions on Geoscience and Remote Sensingen_HK
dc.subjectAbsorption Anomalyen_HK
dc.subjectAlbedoen_HK
dc.subjectDeep Convective Clouden_HK
dc.subjectInstrument Stabilityen_HK
dc.subjectRadiative Transferen_HK
dc.titleApplication of deep convective cloud albedo observation to satellite-based study of the terrestrial atmosphere: Monitoring the stability of spaceborne measurements and assessing absorption anomalyen_HK
dc.typeArticleen_HK
dc.identifier.emailLin, B:blin@hku.hken_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TGRS.2004.834765en_HK
dc.identifier.scopuseid_2-s2.0-9944262479en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-9944262479&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume42en_HK
dc.identifier.issue11en_HK
dc.identifier.spage2594en_HK
dc.identifier.epage2599en_HK
dc.identifier.isiWOS:000225171900023-

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