1. MAARBLE-CAA status

2. MAARBLE Wave database : Products
space
Cluster (ULF/Pc3-5, ULF/Pc1-2)
Cluster (ULF/Pc1, VLF)
Data distribution
THEMIS (ULF/Pc3-5, ULF/Pc1-2, VLF)
GOES (ULF/Pc3-5, ULF/Pc1-2)
Swarm (subject to timely launch, ULF/Pc3-5)
CHAMP (ULF/Pc3-5)
CARISMA (ULF/Pc3-5)
Cluster Science Archive
ground
IMAGE (ULF/Pc3-5)

3. Status TODO Wave database: all datasets delivered
Data available via the Cluster Science Archive (CSA) :
Also via IRF’s site:
Good progress on Wave Maps (WP3.6)
TODO
Reprocess and redeliver Cluster Pc3-5 datasets
Redeliver IMAGE datasets

4. Wave parameters

5. Wave parameters in
Pc1-2 range:
example
from Cluster
B spectrum
E spectrum
Degree of polarization
Planarity
Ellipticity
Propagation angles
Poynting flux

6. Deliverable D3.1: ULF wave databases
(space and ground based)
Space-based
Cluster, 4 s/c,
Datasets: PC1, PC12, PC35, FACMATR (supporting dataset)
THEMIS, 5 s/c,
Datasets: PC12, PC35, FACMATR (supporting dataset)
GOES, 2 s/c (G11, G12),
CHAMP, 1 s/c,
Datasets: PC35
Ground-based
IMAGE, 10 ground stations,
CARISMA, 5 ground stations,
CARISMA PINA
Total: files

7. VLF wave database (space-based)
Deliverable D3.2 VLF:
VLF wave database (space-based)
Space-based
Cluster, 4 s/c,
Datasets: VLF
THEMIS, 5 s/c,
Total: files

8. EMIC statistics from Cluster (polar) + THEMIS (equatorial)
EMIC normalized occurrence in MLAT
All bands
H band
He band
O band
[Mella et al., 2014, in preparation]
An off-equatorial population of EMIC waves exists!

9. EMIC propagation and polarization properties
[Mella et al., 2014, in preparation]
Wave normal angle (qk)
Power
Ellipticity RH LH
MLT map
(b)
He band
EMIC Occurrence rate:
Hydrogen band -> morning sector
Helium band -> afternoon sector
Oxygen band -> dusk sector
Typical range of <BB*> (magnetic power) is 1e-2 to 1e2 nT2 Hz-1
Most of the observed EMIC waves have wave normal angles very close to field aligned (qk < 5°)
Ellipticity ranging from -0.5 to 0.5

10. Chorus statistics from THEMIS - THA/THD/THE - year 2008
Normalized Frequency (f/fc,e) vs. Wave normal angle (qk)
Rising-tone Chorus (spectral points)
Yres(f)
Falling-tone Chorus (spectral points)
(b)
Yres(f)
Most rising tone spectral points in lower band
(f < 0.5 fc,e) with k quasi-parallel to B0 (qk < 30°);
Also many scanned qk close to Yres
(Yres ... resonance cone angle)
Most falling tone spectral points in lower band
(f < 0.5 fc,e) with qk close to Yres;
(Yres ... resonance cone angle)
High qk is generated already close to equatorial plane (source region);
THEMIS at -16° < MLAT < +10°
[Taubenschuss et al.,2014, submitted]

11. Rising tones – Falling tones
Comparison
Rising tones – Falling tones
[Taubenschuss et al.,2014, submitted]
(b)
(a)
(d)
(c)
Only Box 4 (lower band; qk > 40°) contains enough data points from both groups for a direct comparison
Mean <BB*> (magnetic power) and <EE*> (electric power) in Box 4 are at similar levels;
<BB*>: 1e-4 vs. 1e-4 nT2 Hz-1
<EE*>: 5e-1 vs. 10e-1 mV2 m-2 Hz-1
Risers and Fallers in Box 4 are ~electrostatic (cB/E < 5) ... same type of wave, just different spectral drift