一种新的大型数据集Fourier-Legendre分析代码：第一批结果及其与环图分析的比较
A new code for Fourier-Legendre analysis of large datasets: first results and a comparison with ring-diagram analysis
摘要：
傅里叶-勒让德分解（Fourier-Legendre Decomposition，FLD）是一种很有前途的太阳多普勒成像数据的太阳次表层纬向流估计方法。FLD对低阶振荡模式敏感，因此具有探测深部纬向流的潜力。我们提出了一个新开发的代码，用于大规模FLD分析日震数据提供的全球振荡网络组（龚），迈克尔逊多普勒成像仪（MDI）仪器，即将到来的日震和磁成像仪（HMI）仪器。第一个结果与新的代码是定性可比的相同的时间序列从环形图analyis。
英文摘要：
Fourier-Legendre decomposition (FLD) of solar Doppler imaging data is a promising method to estimate the sub-surface solar meridional flow. FLD is sensible to low-degree oscillation modes and thus has the potential to probe the deep meridional flow. We present a newly developed code to be used for large scale FLD analysis of helioseismic data as provided by the Global Oscillation Network Group (GONG), the Michelson Doppler Imager (MDI) instrument, and the upcoming Helioseismic and Magnetic Imager (HMI) instrument. First results obtained with the new code are qualitatively comparable to those obtained from ring-diagram analyis of the same time series.
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