群回波磁强计的现场校正

IF 1.8 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Geoscientific Instrumentation Methods and Data Systems Pub Date : 2022-08-31 DOI:10.5194/gi-11-323-2022

Robert M. Broadfoot, D. Miles, Warren Holley, A. Howarth

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引用次数: 3

摘要

摘要CASSIOPE/e-POP现在被称为Swarm-Echo，于2013年发射，用于研究极等离子体流出、中性逸出以及极光电流对电离层无线电传播的影响。e-POP套件包含8个仪器阵列，其中包括位于共享吊杆上的两个磁通门磁力计。到目前为止，这两种磁力计依赖于一套飞行前校准，这限制了磁场产物的精度和磁力计在某些应用中的实用性。在这里，我们展示了对2014年1月3日至2021年1月30日的数据进行的现场校准的结果，以及一个案例研究，显示了校准对数据效用的改进。使用混沌磁场模型结果的周期性矢量-矢量校准在名义操作期间实现了估计的均方根(rms)不确定性为9nt。该数据产品现已通过欧空局群集存储库公开提供。

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In situ calibration of the Swarm-Echo magnetometers

Abstract. CASSIOPE/e-POP, now known as Swarm-Echo, was launched in 2013 to study polar plasma outflow, neutral escape, and the effects of auroral currents on radio propagation in the ionosphere. The e-POP suite contains an array of eight instruments, including two fluxgate magnetometers on a shared boom. Until now, the two magnetometers relied on a set of preflight calibrations, which limited the accuracy of the magnetic field product and the magnetometers' utility for some applications. Here we present the results of an in situ calibration performed on data from 3 January 2014 to 30 January 2021 and a case study showing the improvements the calibration has made to the data utility. Periodic vector–vector calibration using the CHAOS magnetic field model results achieves an estimated root-mean-square (rms) uncertainty of 9 nT during nominal operation. This data product is now openly available through the ESA Swarm repository.

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来源期刊

Geoscientific Instrumentation Methods and Data Systems GEOSCIENCES, MULTIDISCIPLINARYMETEOROLOGY-METEOROLOGY & ATMOSPHERIC SCIENCES

CiteScore

3.70

自引率

0.00%

发文量

审稿时长

37 weeks

期刊介绍： Geoscientific Instrumentation, Methods and Data Systems (GI) is an open-access interdisciplinary electronic journal for swift publication of original articles and short communications in the area of geoscientific instruments. It covers three main areas: (i) atmospheric and geospace sciences, (ii) earth science, and (iii) ocean science. A unique feature of the journal is the emphasis on synergy between science and technology that facilitates advances in GI. These advances include but are not limited to the following: concepts, design, and description of instrumentation and data systems; retrieval techniques of scientific products from measurements; calibration and data quality assessment; uncertainty in measurements; newly developed and planned research platforms and community instrumentation capabilities; major national and international field campaigns and observational research programs; new observational strategies to address societal needs in areas such as monitoring climate change and preventing natural disasters; networking of instruments for enhancing high temporal and spatial resolution of observations. GI has an innovative two-stage publication process involving the scientific discussion forum Geoscientific Instrumentation, Methods and Data Systems Discussions (GID), which has been designed to do the following: foster scientific discussion; maximize the effectiveness and transparency of scientific quality assurance; enable rapid publication; make scientific publications freely accessible.