Results 81 to 90 of about 5,203 (216)
The differential rotation of the chromosphere and the quiet chromosphere in the falling and rising period of a solar cycle [PDF]
The full-disk chromosphere was routinely monitored in the He I 10830\AA\, line at the National Solar Observatory/Kitt Peak from 2004 Nov. to 2013 March, and thereby, synoptic maps of He I line intensity from Carrington rotations 2032 to 2135 were ...
Xu, JC, Li, KJ
core +1 more source
Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.Abstract Jupiter's auroral regions have previously been defined by broad‐scale auroral structures, but these are typically obscured by the wide array of temporal variability observed at timescales between minutes and days, making it difficult to understand the underlying magnetospheric biases driving these brightness differences.
Tom S. Stallard +9 more
wiley +1 more source
Observations of the upper solar chromosphere with SUMER
, 2003 The structure and dynamics of the solar chromosphere are still matters of debate. The chromospheric network reflecting the supergranulation of the outer convection zone of the Sun is a prominent feature of the lower solar atmosphere that extends into the
Kalkofen, W. +3 more
core +1 more source
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.Abstract Recently, many machine learning‐based models have been developed to predict geomagnetic activity several days in advance directly from space‐borne solar imaging. To better understand and improve these models, we compare dimensionality reduction techniques to extract abstract features from solar images for space weather‐related downstream tasks.
Maria Tahtouh +5 more
wiley +1 more source
Deriving the Coronal Separatrix‐Web With the WSA Model
Journal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.Abstract We demonstrate a new capability of the Wang‐Sheeley‐Arge (WSA) model to routinely derive the coronal separatrix web (S‐web) as a standard data product. We describe our methodology for deriving the squashing factor (Q $Q$) and we use Carrington rotation (CR) 2109 to illustrate the validation of our output with that derived from the POT3D model.
Samantha Wallace +5 more
wiley +1 more source
What Happens in “Chromospheres”?
Stem Cells Translational Medicine, 2013 The recent paper by Santana et al. titled “Isolation, Characterization, and Differentiation of Progenitor Cells From Adult Human Adrenal Medulla” [1] is an interesting contribution to human chromaffin cell biology. However, I am concerned about omissions of important information in the literature that could lead to alternate interpretations of the ...
openaire +2 more sources
Journal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.Abstract Working toward the goal of understanding solar wind (SW) entry to the Earth's magnetosphere, this study examines solar‐origin ion composition in the magnetotail. During its trajectory, Wind spent a significant amount of time in the Earth's magnetotail, where its SupraThermal Ion Composition Spectrometer (STICS) measured the mass and mass per ...
S. Colón‐Rodríguez +3 more
wiley +1 more source
, 2007 . The natural state of the Solar chromosphere is very dynamic. Any photospheric disturbance will grow and naturally form shocks over the twenty scale-heights in density between the photosphere and the corona.
Mats Carlsson, Robert F. Stein
core
Propagation and damping of MHD waves in the solar atmosphere [PDF]
, 2015 Quasi-periodic disturbances have been observed in the outer solar atmosphere for many years. Although first interpreted as upflows (Schrijver et al.
Kiddie, Greg
core +2 more sources
Structure of the chromosphere-corona transition region [PDF]
, 1971 Structure and energy distribution of chromosphere-corona transition ...
Moore, R. L., Fung, P. C. W.
core