READ ME File For 'Dataset: Three-dimensional modelling of Ganymede’s Chapman-Ferraro magnetic field and its role in subsurface ocean induction'

Dataset DOI: 10.5258/SOTON/D2542

Date that the file was created: July, 2024

-------------------
GENERAL INFORMATION
-------------------

ReadMe Author: NAWAPAT KAWEEYANUN, University of Southampton, ORCID ID: 0000-0003-0634-0164

Date of data collection: 17 Nov 2023 (Fig3), 20 Nov 2023 (Fig 4), 21 Feb 2024 (Fig2), 4 Mar 2024 (Fig 5) 

Information about geographic location of data collection: Southampton, United Kingdom

Related projects:
NONE

--------------------------
SHARING/ACCESS INFORMATION
-------------------------- 

Licenses/restrictions placed on the data, or limitations of reuse:

Recommended citation for the data:

This dataset supports the publication:
AUTHORS: Nawapat Kaweeyanun, Adam Masters
TITLE: Three-dimensional modelling of Ganymede’s Chapman-Ferraro magnetic field and its role in subsurface ocean induction
JOURNAL: Icarus
PAPER DOI IF KNOWN: 10.1016/j.icarus.2024.116356

Links to other publicly accessible locations of the data: NONE

Links/relationships to ancillary or related data sets: NONE


--------------------
DATA & FILE OVERVIEW
--------------------

This dataset contains:

- Fig2_Data.xlsx: Spreadsheet containing data appearing in Figure 2 of the publication this dataset supports.
- Fig3_Data.xlsx: Spreadsheet containing data appearing in Figure 3 of the publication this dataset supports.
- Fig4_Data.xlsx: Spreadsheet containing data appearing in Figure 4 of the publication this dataset supports.
- Fig5_Data.xlsx: Spreadsheet containing data appearing in Figure 5 of the publication this dataset supports.
- README_DATA.txt: this guiding document.

The data files are independent of each other.

All data used in the publication is in this dataset. Data is not derived from another source.  

This is the first public edition of the dataset.


--------------------------
METHODOLOGICAL INFORMATION
--------------------------

Data submitted is raw data developed from the model and protocol described in the publication operating on the MATLAB (2023b) software. However, any spreadsheet application is suitable for interpreting the data arrays. 

No calibration is required for this data, which is collected, processed, analysed, and submitted by Nawapat Kaweeyanun.

--------------------------
DATA-SPECIFIC INFORMATION
--------------------------


<Fig2_Data.xlsx>


Number of variables: 15

Number of cases/rows: 181x181 (all)

Variable list, defining any abbreviations, units of measure, codes or symbols used:

X: GphiO X-coordinates of measurement points on Ganymede's R = 0.95 RG top-of-ocean sphere.
Y: GphiO Y-coordinates of measurement points on Ganymede's R = 0.95 RG top-of-ocean sphere.
Z: GphiO Z-coordinates of measurement points on Ganymede's R = 0.95 RG top-of-ocean sphere.
BCF158: Chapman-Ferraro magnetic field strength computed at 158 deg Jupiter's System-III longitude (Ganymede at highest latitude inside Jovian plasma sheet).
BCF158x: X-component of the Chapman-Ferraro magnetic field strength at 158 deg Jupiter's System-III longitude (Ganymede at highest latitude inside Jovian plasma sheet).
BCF158y: Y-component of the Chapman-Ferraro magnetic field strength at 158 deg Jupiter's System-III longitude (Ganymede at highest latitude inside Jovian plasma sheet).
BCF158z: Z-component of the Chapman-Ferraro magnetic field strength at 158 deg Jupiter's System-III longitude (Ganymede at highest latitude inside Jovian plasma sheet).
BCF248: Chapman-Ferraro magnetic field strength computed at 158 deg Jupiter's System-III longitude (Ganymede highest inside Jovian plasma sheet).
BCF248x: X-component of the Chapman-Ferraro magnetic field strength at 248 deg Jupiter's System-III longitude (Ganymede at Jovian plasma sheet's equator).
BCF248y: Y-component of the Chapman-Ferraro magnetic field strength at 248 deg Jupiter's System-III longitude (Ganymede at Jovian plasma sheet's equator).
BCF248z: Z-component of the Chapman-Ferraro magnetic field strength at 248 deg Jupiter's System-III longitude (Ganymede at Jovian plasma sheet's equator).
BCF338: Chapman-Ferraro magnetic field strength computed at 158 deg Jupiter's System-III longitude (Ganymede highest inside Jovian plasma sheet).
BCF338x: X-component of the Chapman-Ferraro magnetic field strength at 338 deg Jupiter's System-III longitude (Ganymede at lowest latitude inside Jovian plasma sheet).
BCF338y: Y-component of the Chapman-Ferraro magnetic field strength at 338 deg Jupiter's System-III longitude (Ganymede at lowest latitude inside Jovian plasma sheet).
BCF338z: Z-component of the Chapman-Ferraro magnetic field strength at 338 deg Jupiter's System-III longitude (Ganymede at lowest latitude inside Jovian plasma sheet).

   
Missing data codes: NONE

Specialized formats or other abbreviations used: NONE


<Fig3_Data.xlsx>


Number of variables: 8

Number of cases/rows: 181x1 (lambda3) 181x4 (others)

Variable list, defining any abbreviations, units of measure, codes or symbols used:

lambda3: Jupiter's System-III longitude array (0-360 deg at 2 deg interval)
lat0 (3a): Chapman-Ferraro magnetic field strength at 0 deg latitude measured at -90 deg (row 1), 0 deg (row 2), 90 deg (row 3), and 180 deg (row 4) longitudes on Ganymede's R = 0.95 RG top-of-ocean sphere (Fig. 3a). 
lat+35 (3b): Chapman-Ferraro magnetic field strength at 35 deg N latitude measured at -90 deg (row 1), 0 deg (row 2), 90 deg (row 3), and 180 deg (row 4) longitudes on Ganymede's R = 0.95 RG top-of-ocean sphere (Fig. 3b).
lat-35 (3c): Chapman-Ferraro magnetic field strength at 35 deg S latitude measured at -90 deg (row 1), 0 deg (row 2), 90 deg (row 3), and 180 deg (row 4) longitudes on Ganymede's R = 0.95 RG top-of-ocean sphere (Fig. 3c).
lat+55 (3d): Chapman-Ferraro magnetic field strength at 55 deg N latitude measured at -90 deg (row 1), 0 deg (row 2), 90 deg (row 3), and 180 deg (row 4) longitudes on Ganymede's R = 0.95 RG top-of-ocean sphere (Fig. 3e). 
lat-55 (3e): Chapman-Ferraro magnetic field strength at 55 deg S latitude measured at -90 deg (row 1), 0 deg (row 2), 90 deg (row 3), and 180 deg (row 4) longitudes on Ganymede's R = 0.95 RG top-of-ocean sphere (Fig. 3f).
lat+90 (3f): Chapman-Ferraro magnetic field strength at 90 deg N latitude measured at -90 deg (row 1), 0 deg (row 2), 90 deg (row 3), and 180 deg (row 4) longitudes on Ganymede's R = 0.95 RG top-of-ocean sphere (Fig. 3g). 
lat-90 (3g): Chapman-Ferraro magnetic field strength at 90 deg S latitude measured at -90 deg (row 1), 0 deg (row 2), 90 deg (row 3), and 180 deg (row 4) longitudes on Ganymede's R = 0.95 RG top-of-ocean sphere (Fig. 3h).
   
Missing data codes: NONE

Specialized formats or other abbreviations used: NONE


<Fig4_Data.xlsx>


Number of variables: 3

Number of cases/rows: 21x1 (R) 21x4 (others)

Variable list, defining any abbreviations, units of measure, codes or symbols used:

R: radius of measurement sphere from centre of Ganymede
BCF248 (4a): Chapman-Ferraro magnetic field strength measured at subflow meridian at 0 deg (row 1), 35 deg N/S (row 2), 55 deg N/S (row 3), and 90 deg N/S (row 4) at 248 deg Jupiter's System-III longitude (Ganymede at Jovian plasma sheet's equator), used in Fig. 4a.
BCF158or338 (4b): Chapman-Ferraro magnetic field strength measured at subflow meridian at 0 deg (row 1), 35 deg N/S (row 2), 55 deg N/S (row 3), and 90 deg N/S (row 4) at 158/338 deg Jupiter's System-III longitude (Ganymede at highest/lowest latitude inside Jovian plasma sheet), used in Fig. 4b.
   
Missing data codes: NONE

Specialized formats or other abbreviations used: NONE


<Fig5_Data.xlsx>


Number of variables: 12

Number of cases/rows: 6x3 (Galileo Positions), 81x81 (others)

Variable list, defining any abbreviations, units of measure, codes or symbols used:

X: GphiO X-coordinates of measurement points on a -2 RG < X < 2 RG plane at 0.05 RG resolution.
Y: GphiO Y-coordinates of measurement points on a -2 RG < Y < 2 RG plane at 0.05 RG resolution.
Eq158 (5a): Chapman-Ferraro magnetic field strength on measurement plane at Z = 0 RG, Jovian System-III longitude = 158 deg (Ganymede's equator, moon highest in Jupiter's plasma sheet), used in Fig. 5a.
Eq248 (5b): Chapman-Ferraro magnetic field strength on measurement plane at Z = 0 RG, Jovian System-III longitude = 248 deg (Ganymede's equator, moon at equator of Jupiter's plasma sheet), used in Fig. 5b.
Eq338 (5c): Chapman-Ferraro magnetic field strength on measurement plane at Z = 0 RG, Jovian System-III longitude = 338 deg (Ganymede's equator, moon lowest in Jupiter's plasma sheet), used in Fig. 5c.
G1 (5d): Chapman-Ferraro magnetic field strength on measurement plane at Z = 0.49 RG, Jovian System-III longitude = 189 deg (consistent with Galileo's G1 flyby), used in Fig. 5d.
G2 (5e): Chapman-Ferraro magnetic field strength on measurement plane at Z = 1.13 RG, Jovian System-III longitude = 163 deg (consistent with Galileo's G2 flyby), used in Fig. 5e.
G7 (5f): Chapman-Ferraro magnetic field strength on measurement plane at Z = 1.79 RG, Jovian System-III longitude = 344 deg (consistent with Galileo's G7 flyby), used in Fig. 5f.
G8 (5g): Chapman-Ferraro magnetic field strength on measurement plane at Z = 0.76 RG, Jovian System-III longitude = 73 deg (consistent with Galileo's G8 flyby), used in Fig. 5g.
G28 (5h): Chapman-Ferraro magnetic field strength on measurement plane at Z = -0.43 RG, Jovian System-III longitude = 8 deg (consistent with Galileo's G28 flyby), used in Fig. 5h.
G29 (5i): Chapman-Ferraro magnetic field strength on measurement plane at Z = 1.67 RG, Jovian System-III longitude = 143 deg (consistent with Galileo's G29 flyby), used in Fig. 5i.

   
Missing data codes: NONE

Specialized formats or other abbreviations used: NONE




