1. Experimental setup (SPICE)

2. Dust logger/EDML log matching
prediction for precision of extrapolation outside IceCube
is based on the correlation with SPICE model: 14%
Correlation with SPICE ice model
Merging Dust Logger and EDML logs

3. fit region (inside detector)
black line: 7-string fit to flasher data
gray band: scaled merged dust log
(m-1)
(m)
extrapolation region
fit region (inside detector)
(outside detector)

4. fit region (inside detector)
black line: 7-string fit to flasher data
gray band: scaled merged dust log
(m-1)
(m)
extrapolation region
fit region (inside detector)
(outside detector)

5. fit region (inside detector)
black line: 7-string fit to flasher data
gray band: scaled merged dust log
(m)
extrapolation region
fit region (inside detector)
(outside detector)

6. fit region (inside detector)
black line: 7-string fit to flasher data
gray band: scaled merged dust log
(m)
extrapolation region
fit region (inside detector)
(outside detector)

7. Model error of SPICE: ~10%
> 0, 1, 10, 100, 400 p.e./event
19, 24, 57, 62, 80, 81+63
with LED pattern unfolding
+ with DOM efficiencies

8. Timeline AMANDA ice models:
bulk, f125, mam, mamint, stdkurt, sudkurt, kgm, …
millennium (published 2006)  AHA (2007) %
IceCube ice models:
cont.  WHAM (2011) %
SPICE 1 (2009) %
SPICE 2, 2+, 2x, 2y (2010) added ice layer tilt
SPICE Mie (2010) fit to scattering function 29%
SPICE Lea (2012) fit to scattering anisotropy 20%
SPICE Next (2013) 7-string, LED unfolding 17%
SPICE Next New (2014) llh fixes, DOM sensitivity fits 12%