Deriving clear-sky longwave spectral flux from spaceborne hyperspectral radiance measurements: a case study with AIRS observations

Chen, Xiuhong; Huang, Xianglei

doi:https://doi.org/10.5194/amt-9-6013-2016

Articles | Volume 9, issue 12

https://doi.org/10.5194/amt-9-6013-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-9-6013-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 12

Research article

|

14 Dec 2016

Research article |

| 14 Dec 2016

Deriving clear-sky longwave spectral flux from spaceborne hyperspectral radiance measurements: a case study with AIRS observations

Xiuhong Chen and Xianglei Huang

Data sets

AIRS Level 1B data NASA Goddard Earth Sciences (GES) Data and Information Services Center (DISC) http://airsl1.gesdisc.eosdis.nasa.gov/data/Aqua_AIRS_Level1/AIRIBRAD.005/

CERES data NASA Atmospheric Science Data Center (ASDC) https://eosweb.larc.nasa.gov/HORDERBIN/HTML_Start.cgi

ERA-Interim data European Centre for Medium-Range Weather Forecasts (ECMWF) http://apps.ecmwf.int/datasets/data/interim-full-daily/levtype=pl/

Short summary

We explore algorithms of estimating spectral flux over the entire longwave spectrum solely from hyperspectral radiance observations using AIRS data as an example. This is different from the traditional approach of estimating broadband flux from satellite observations in two ways: (1) no other remote sensing data sets are needed, and (2) the spectral details of the broadband flux can be derived. This study shows that the hyperspectral radiances can be used to directly obtain spectral flux.