1.2.1.7 Detect and characterise waves in closed and open structures (e.g. De Pontieu et al., 2007), looking for signatures of their dissipation in the transition region and low corona, with a corresponding evaluation of the energy released to heat the solar plasma.
Targets: AR (also closed loops in QS?), on-disk and also off-limb (for spicules).
Spicules:
Maybe divide this objective per target?
Operational requirements table:
Requirement | YES / NO / Not required / MAYBE / GOOD TO HAVE / NUMBERS | Remarks |
|---|---|---|
| Duration of the observations | Several hours depending on the target | |
| Perihelion | Yes | |
| RS window | Yes | |
| High latitude | High latitude for plumes (PHI) Better at perihelion for METIS for polar plumes
| |
| Solar cycle dependence | Good to have | |
| Radial dependence | No | |
| Linkage science | No | |
| Multiple orbits | Good to have | |
| Far side observations | No | |
| Earth observations | Good to have | |
| EMC Quiet | No | |
| SPP | No | |
| Instruments | EUI, PHI, METIS for plumes | RS only |
- EUI, EUI Quiet Sun mode (Q), EUI Eruptive Event mode (E), EUI Discovery mode (D). Targets: AR (also closed loops in QS?), on-disk and also off-limb (for spicules). HRI Ly-alpha and 174. Min. observation time 1h. Other instruments: SPICE.
Cadence: 1 min
PHI,
HRT medium resolution data
Requirement
FOV [pixels]
1024 x 1024
Parameters
Ic, vLOS, B, γ, φ (interlaced with raw data)
duration
2 days
cadence
full magnetogram once per hour, for plumes
N orbits
2
solar distance
entire orbit
PHI operating mode
3+8
co-ordination
?
- METIS
- :
- Measurement of the solar wind outflow velocity gradient in the outer corona, to localise regions of energy deposition, via Doppler dimming of the HI Lyα intensity in the field of view 1.5-2.9 degrees. Measurement of the magnetic field topology through the global corona configuration. Measurements of the brightness fluctuation spectra.
- Products:
- Global maps of outflow velocity in corona.
- Global maps of the electron density in corona/coronal configuration.
- Brightness fluctuation spectra.
- Modes:
- WIND (min. obs time 2 hr, data volume ≤ 300 Mb)
- MAGTOP (min. obs time 2 hr, data volume ≤ 480 Mb)
- FLUCTS (min. obs time 1 hr, data volume ~ 2 Gb) at perihelion.
- Other instruments: PHI, EUI, SPICE, STIX.