气候变化领域集成服务门户(CCPortal): Probing Venus Surface Iron Contents With Six-Band Visible Near-Infrared Spectroscopy From Orbit

CCPortal

DOI	10.1029/2020GL090497
	Probing Venus Surface Iron Contents With Six-Band Visible Near-Infrared Spectroscopy From Orbit
	Dyar M.D.; Helbert J.; Maturilli A.; Müller N.T.; Kappel D.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:23
英文摘要	Machine learning models enable interpretation of orbital spectral measurements of Venus using laboratory calibration data collected at Venus surface temperatures. Partial least squares models show that total iron content can be accurately predicted using data from the six bands (two in the 1.02 μm window). Prediction errors on total wt% FeO are ±0.50 for common subalkaline volcanic rocks. Accuracy is ±0.42 for wt% FeO in alkaline rocks, and ±2.47 for all 18 igneous samples studied to date. These robust capabilities will allow discrimination of basalt versus rhyolite/granite and elucidate the rock type of the enigmatic tessera terrain on Venus. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Infrared devices; Iodine compounds; Iron; Iron metallography; Iron oxides; Least squares approximations; Near infrared spectroscopy; Phosphorus compounds; Sulfur compounds; Uranium compounds; Volcanic rocks; Calibration data; Machine learning models; Partial least squares models; Prediction errors; Robust capability; Spectral measurement; Surface temperatures; Visible-near infrared spectroscopy; Nitrogen compounds; accuracy assessment; basalt; calibration; orbit determination; tessera; Venus; VIIRS; volcanic rock
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169357
作者单位	Planetary Science Institute, Tucson, AZ, United States; Department of Astronomy, Mount Holyoke College, South Hadley, MA, United States; German Aerospace Center (DLR) Institute for Planetary Research, Berlin, Germany
推荐引用方式 GB/T 7714	Dyar M.D.,Helbert J.,Maturilli A.,et al. Probing Venus Surface Iron Contents With Six-Band Visible Near-Infrared Spectroscopy From Orbit[J],2020,47(23).
APA	Dyar M.D.,Helbert J.,Maturilli A.,Müller N.T.,&Kappel D..(2020).Probing Venus Surface Iron Contents With Six-Band Visible Near-Infrared Spectroscopy From Orbit.Geophysical Research Letters,47(23).
MLA	Dyar M.D.,et al."Probing Venus Surface Iron Contents With Six-Band Visible Near-Infrared Spectroscopy From Orbit".Geophysical Research Letters 47.23(2020).