Verification of the Atmospheric Infrared Sounder (AIRS) and the Microwave Limb Sounder (MLS) ozone algorithms based on retrieved daytime and night-time ozone
نویسندگان
چکیده
Abstract. Ozone (O3) plays a significant role in weather and climate on regional to global spatial scales. Most studies the variability total column of O3 (TCO) are typically carried out using daytime data. Based knowledge chemistry transport O3, deviations between night-time only expected either planetary boundary layer (PBL) or high stratosphere mesosphere, with little effect TCO. Hence, we expect TCO be very similar. However, detailed evaluation satellite measurements is still lacking, despite existence long-term records both. Thus, comparing TCOs provides novel approach verifying retrieval algorithms instruments such as Atmospheric Infrared Sounder (AIRS) Microwave Limb (MLS). In addition, comparison also helps assess value for scientific research. Applying this verification AIRS MLS data, identified inconsistencies observations from both instruments. For AIRS, daytime–night-time differences were found over oceans resembling cloud cover patterns land, mostly dry land areas, which likely related infrared surface emissivity. These point issues representation processes algorithm. MLS, major issue was “ascending–descending” orbit flag, used discriminate measurements. Disregarding issue, day–night significantly smaller than differences, providing additional support method origin stratospheric ozone (SCO) differences. dominated by upper-stratospheric mesospheric diurnal cycle. results provide useful information improving products.
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ژورنال
عنوان ژورنال: Atmospheric Measurement Techniques
سال: 2021
ISSN: ['1867-1381', '1867-8548']
DOI: https://doi.org/10.5194/amt-14-1673-2021