C. DEMETRESCU1, R. G. DIMITRIU2 C. S. SAVA2, MARIA ANDREESCU1
1Institutul de Geodinamica, Bucuresti
2Institutul de Geologie si Geofizica,
Bucuresti
A NORMAL FIELD FOR THE ROMANIAN SECTOR OF THE BLACK SEA SHELF
(Abstract)
The normal geomagnetic field for the Romanian Black Sea shelf, epoch 1985,0,
adopted as reference level for the magnetic survey of the area at the scale
of 1:200,000 is presented. The optimum variant has been chosen by analyzing
the advantages and drawbacks of several candidates. Advantages related to the
larger area of validity and possibilities of direct comparison with measurements
on land and on future marine panels, made us suggest the International Geomagnetic
Reference Field as the bet variant. For the study area, an additional "crustal
field", also given in the paper, might be used, as an option, to remove
a weak remanent regional variation.
Key words: Geomagnetism, reference field, crustal field, Black Sea shelf, Romania.