Results of intercomparison and calibration of Dobson spectrophotometer no.112, Japan-1996

An international comparison of Dobson spectrophotometer operated in the RA II and V regions was conducted in Japan during 1996. Countries participating with Dobson instruments were India, Japan, Korea, Philippines and Thailand. The reference standard instrument for the comparison was regional standard Dobson instrument no.116 maintained by Japan. The comparisons confirmed that the Indian standard no.112 was in good state of calibration and the data derived from the instrument was reliable.