1. INTRODUCTION

2. OBSERVATIONS AND DATA
2.1. Optical polarization data
2.2. H I map
2.3. 3D Dust maps of the local Galaxy

3. MAGNETIC FIELD STRENGTH CALCULATION
3.1. The DCF method
3.2. The Skalidis-E Tassis (2021) method
3.3. Angular dispersion function

4. IPS-GI FIELD SELECTION AND PROPERTIES
4.1. IPS-GI field selection criteria
4.2. ISM properties in IPS-GI fields

5. RESULTS
5.1. Angular dispersion function
5.2. Magnetic field strength maps

6. DISCUSSION
6.1. Turbulent scales
6.2. Galactic magnetic field in the Solar neighborhood