Spectral Recalibration of NOAA HIRS Longwave CO2 Channels toward a 40+ Year Time Series for Climate Studies
نویسندگان
چکیده
The High-Resolution Infrared Radiation Sounder (HIRS) on NOAA and MetOp A/B satellites has been observing the Earth continuously for over four decades, providing essential data operational numerical weather prediction, retrieval of atmospheric vertical profile, total column information temperature, moisture, water vapor, ozone, cloud climatology, other geophysical parameters globally. Although HIRS meets needs short-term forecast, there are inconsistencies when long-term decadal time series is used analysis. discrepancies caused by several factors, including spectral response differences between models uncertainties calibration issues. Previous studies have demonstrated that significant improvements can be achieved recalibrating some longwave CO2 channels (Channels 4, 5, 6, 7), which helped make more consistent. current study aims to extend previous remaining infrared sounding channels, Channels 1, 2, 3, 8, using a similar approach. Similar findings, shift bands improve consistency in from NOAA-06 MetOp-A B these channels. We also found MetOp-B bias relative Atmospheric Sounding Interferometer (IASI) same satellite, especially Channel significantly reduced bias. To bridge observation gap mid-1980s NOAA-07 NOAA-09, global mean method since no transfer radiometers them was available this period, function corrections, therefore, applied earliest (NOAA-06) recalibration provided scientists at University Wisconsin improving their historical now made science community.
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ژورنال
عنوان ژورنال: Atmosphere
سال: 2021
ISSN: ['2073-4433']
DOI: https://doi.org/10.3390/atmos12101317