1. Isogones- Equal magnetic declination
2. Isohel- Equal amount of sunlight.
3. Isobront -Thunderstorm at the same time
4. Isocheim -Same mean winter temperature
5. Isothere- Same mean summer temperature
6. Isanomal -Isopleth of Anomaly
7. Isochrones- Equal travel time from a common center.
8. Isohypse- Or Contour lines
9. Isonif -Amount of Snow
10. Isophene -Isopleths of seasonal phenomena
11. Isopotential -Surface to which artesian water can rise
12. Isorymes- Equal frost
13. Isarithm -A line representing continuous value on map
14. Isonephs- Equal cloudiness
15. Co-seismal lines- Simultaneous seismic activity
16. Isopach- Equal thickness of geological strata
17. Isotach- Same wind speed
18. Isotherombrose -Equal ratio of summer rainfall to annual rainfall
19. Isochasm- Equal frequency of aurorae
20. Isodynamic- Equal magnetic intensity
21. Isogen- Equal birthrates
22. Isokeraunic -Equal occurrence of thunderstorms
