Coronal Holes According to Chromospheric Observations
Sign Up to like & getrecommendations! Published in 2019 at "Astrophysics"
DOI: 10.1007/s10511-019-09576-5
Abstract: Observations in the HeI 10830 Å and Hα lines are used to study the physical conditions in a polar coronal hole. The coronal hole was observed in the northern hemisphere from June 2015 through March… read more here.
Keywords: according chromospheric; coronal hole; coronal holes; hole ... See more keywords
Comparative Study of Microwave Polar Brightening, Coronal Holes, and Solar Wind over the Solar Poles
Sign Up to like & getrecommendations! Published in 2019 at "Solar Physics"
DOI: 10.1007/s11207-019-1418-6
Abstract: We compared the long-term variation (1992 – 2017) in solar polar brightening observed with the Nobeyama Radioheliograph, the polar solar-wind velocity with interplanetary scintillation observations at the Institute for Space-Earth Environmental Research, and the coronal-hole distribution computed… read more here.
Keywords: mathrm; study; coronal hole; polar brightening ... See more keywords
Comparative Study and Development of Two Contour-Based Image Segmentation Techniques for Coronal Hole Detection in Solar Images
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DOI: 10.1007/s11207-020-01674-4
Abstract: The study of solar coronal holes (CHs) is important in the understanding of solar physics and the prediction of space weather events, which have significant impact on space-based instruments, communication and navigation systems. With the… read more here.
Keywords: contour based; detection; solar images; two contour ... See more keywords
A study of a coronal hole associated with a large filament eruption
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1866
Abstract: We report the results of a detailed study of an equatorial coronal hole and a dimming region related to the eruptions of a nearby large filament and subsequent coronal mass ejections (CMEs). The dynamic eruptions… read more here.
Keywords: large filament; hole; filament eruption; coronal hole ... See more keywords
Image Processing Methods for Coronal Hole Segmentation, Matching, and Map Classification
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Image Processing"
DOI: 10.1109/tip.2019.2944057
Abstract: The paper presents the results from a multi-year effort to develop and validate image processing methods for selecting the best physical models based on solar image observations. The approach consists of selecting the physical models… read more here.
Keywords: image processing; coronal hole; map classification; segmentation ... See more keywords