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Rights statement: ©2013. American Geophysical Union. All Rights Reserved
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - The location of the Earth's magnetopause
T2 - a comparison of modeled position and in situ cluster data
AU - Case, Nathan
AU - Wild, Jim
N1 - ©2013. American Geophysical Union. All Rights Reserved
PY - 2013/10/3
Y1 - 2013/10/3
N2 - Exploiting eight years of magnetic field data from the Cruster mission, we employ an automated magnetopause crossing detection routine to determine the magnetopause location over varying magnetic latitude and local time. For a period spanning nearly one solar cycle we build a database of 2709 magnetopause crossings and compare these locations to the magnetopause models of Petrinec and Russell [1996], Shue et al. [1998], Dmitriev and Suvorova [2000] and Lin et al. [2010]. We compare our detected locations with the predicted locations for a variety of solar wind conditions and positions on the magnetopause. We find that, on average, the Petrinec and Russell [1996] and Shue et al. [1998] models overestimate the radial distance to the magnetopause by ∼1 RE (9%) whilst the Dmitriev and Suvorova [2000] and Lin et al. [2010] models underestimates it by 0.5 RERE (4.5%) and 0.25 RERE (2.3%) respectively. Some varying degree of control on the differences between the predicted and encountered locations, by the solar wind and location parameters, are found.
AB - Exploiting eight years of magnetic field data from the Cruster mission, we employ an automated magnetopause crossing detection routine to determine the magnetopause location over varying magnetic latitude and local time. For a period spanning nearly one solar cycle we build a database of 2709 magnetopause crossings and compare these locations to the magnetopause models of Petrinec and Russell [1996], Shue et al. [1998], Dmitriev and Suvorova [2000] and Lin et al. [2010]. We compare our detected locations with the predicted locations for a variety of solar wind conditions and positions on the magnetopause. We find that, on average, the Petrinec and Russell [1996] and Shue et al. [1998] models overestimate the radial distance to the magnetopause by ∼1 RE (9%) whilst the Dmitriev and Suvorova [2000] and Lin et al. [2010] models underestimates it by 0.5 RERE (4.5%) and 0.25 RERE (2.3%) respectively. Some varying degree of control on the differences between the predicted and encountered locations, by the solar wind and location parameters, are found.
KW - Magnetopause and boundary layers
KW - magnetosheath
KW - Solar wind/magnetosphere interactions
U2 - 10.1002/jgra.50572
DO - 10.1002/jgra.50572
M3 - Journal article
VL - 118
SP - 6127
EP - 6135
JO - Journal of Geophysical Research
JF - Journal of Geophysical Research
SN - 0148-0227
IS - 10
ER -