气候变化领域集成服务门户(CCPortal): Initial Results and Diurnal Variations Measured by a New Microwave Stratospheric ClO Instrument at Mauna Kea

CCPortal

DOI	10.1029/2020JD033097
	Initial Results and Diurnal Variations Measured by a New Microwave Stratospheric ClO Instrument at Mauna Kea
	Nedoluha G.E.; Gomez R.M.; Boyd I.; Neal H.; Parrish A.; Connor B.; Mooney T.; Siskind D.E.; Sagawa H.; Santee M.
发表日期	2020
ISSN	2169897X
卷号	125 期号:18
英文摘要	We present the first year of ClO and O3 measurements from a new 278 GHz Chlorine monOxide Experiment (ChlOE) microwave instrument on Mauna Kea. We make use of comparisons with the Aura Microwave Limb Sounder (MLS) O3 measurements to recalibrate the ground-based instrument and find that the recalibrated ground-based O3 retrievals remain stable relative to MLS throughout the year. The MLS measurements provide daily daytime (~1330 local solar time) and nighttime (~0200 local solar time) ClO retrievals, and we find that the monthly ChlOE ClO retrievals show mixing ratios slightly smaller than those from MLS in the vicinity of Mauna Kea, with daytime values near the peak ~6–8% lower at 30–45 km for the average of the 12 months in this study. The nighttime monthly ClO values are almost all within ±0.03 ppbv over most of this altitude range, with very little overall bias. We have also made detailed hourly diurnal O3 comparisons with a multiyear analysis of previous retrievals from the much stronger 110 GHz O3 emission line being measured by our instrument at Mauna Loa and find that the hour-to-hour differences are within ±2% at 40 km, which indicates that the overall calibration of the ChlOE instrument is stable relative to time of day. We show hourly diurnal variations of ClO and compare these to 2010 measurements from the Submillimeter-Wave Limb-Emission Sounder and to a model. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	ClO; ground-based microwave; ozone depletion; stratosphere
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185736
作者单位	Naval Research Laboratory, Washington, DC, United States; BC Scientific Consulting LLC, Stony Brook, NY, United States; Department of Astronomy, University of Massachusetts, Amherst, MA, United States; Faculty of Science, Kyoto Sangyo University, Kyoto, Japan; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Nedoluha G.E.,Gomez R.M.,Boyd I.,et al. Initial Results and Diurnal Variations Measured by a New Microwave Stratospheric ClO Instrument at Mauna Kea[J],2020,125(18).
APA	Nedoluha G.E..,Gomez R.M..,Boyd I..,Neal H..,Parrish A..,...&Santee M..(2020).Initial Results and Diurnal Variations Measured by a New Microwave Stratospheric ClO Instrument at Mauna Kea.Journal of Geophysical Research: Atmospheres,125(18).
MLA	Nedoluha G.E.,et al."Initial Results and Diurnal Variations Measured by a New Microwave Stratospheric ClO Instrument at Mauna Kea".Journal of Geophysical Research: Atmospheres 125.18(2020).