Noise propagation in inversion of helioseismic time-distance data
Abstract
We present an analysis of noise propagation in time-distance inversion. The data covariance is estimated from a quiet region. We obtain estimates for the correlation and uncertainties of the inversion result both from theoretical propagation of the covariance matrix and from inversion of realizations of the noise model. Inversion of data containing a sunspot is shown along with the estimates of the uncertainties.
- Publication:
-
GONG+ 2002. Local and Global Helioseismology: the Present and Future
- Pub Date:
- February 2003
- Bibcode:
- 2003ESASP.517..315J
- Keywords:
-
- Helioseismology;
- Data Analyses