Comparison of solar horizontal velocity fields from SDO/HMI and Hinode data

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10174146" target="_blank" >RIV/00216208:11320/13:10174146 - isvavai.cz</a>

Alternative codes found

RIV/67985815:_____/13:00421332

Result on the web

<a href="http://dx.doi.org/10.1051/0004-6361/201220867" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201220867</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201220867" target="_blank" >10.1051/0004-6361/201220867</a>

Result language

angličtina

Original language name

Comparison of solar horizontal velocity fields from SDO/HMI and Hinode data

Original language description

Context. The measurement of the Sun's surface motions with a high spatial and temporal resolution is still a challenge. Aims. We wish to validate horizontal velocity measurements all over the visible disk of the Sun from Solar Dynamics Observatory/Helioseismic and Magnetic Imager (SDO/HMI) data. Methods. Horizontal velocity fields are measured by following the proper motions of solar granules using a newly developed version of the coherent structure tracking (CST) code. The comparison of the surface flows measured at high spatial resolution (Hinode, 0.1 arcsec) and low resolution (SDO/HMI, 0.5 arcsec) allows us to determine corrections to be applied to the horizontal velocity measured from HMI white light data. Results. We derive horizontal velocity maps with spatial and temporal resolutions of respectively 2.5 Mm and 30 min. From the two components of the horizontal velocity v(x) and v(y) measured in the sky plane and the simultaneous line of sight component from SDO/HMI dopplergrams

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

<a href="/en/project/GPP209%2F12%2FP568" target="_blank" >GPP209/12/P568: Convection and plasma motions in the near-surface layers of the solar convection zone</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

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Volume of the periodical

552

Issue of the periodical within the volume

duben

Country of publishing house

FR - FRANCE

Number of pages

7

Pages from-to

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UT code for WoS article

000317912000112

EID of the result in the Scopus database

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