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Is the photic zone two times secchi depth?
Yesterday I measured Secchi disk transparency and compared that with simultaneous photometer measurements in a subtropical estuary. The lower border of the photic zone (1% of surface irradiance) according to my YSI photometer was at a depth of 4.7 m , while Secchi reading was at 1.6 m. Multiplying 1.6 by 2 gives 3.2, which is significantly lower than 4.7 m. Before that observation I believed in the "double-Secchi rule".
When did Serafino Secchi die?
Serafino Secchi died in 1628.
When did Dante Secchi die?
Dante Secchi died in 1981.
When was Dante Secchi born?
Dante Secchi was born in 1910.
When did Antonio Secchi die?
Antonio Secchi died on June 7, 2013.
What has the author Niccolo Secchi written?
Niccolo Secchi has written: 'Gl'inganni comedia'
When was Angelo Secchi born?
Angelo Secchi was born on 1818-06-29.
When did Angelo Secchi die?
Angelo Secchi died on 1878-02-26.
When was Giuseppe Secchi born?
Giuseppe Secchi was born on 1931-04-06.
What are the ratings and certificates for Secchi - 2013?
Secchi - 2013 is rated/received certificates of: Sweden:Btl
When was Antonio Secchi born?
Antonio Secchi was born on February 26, 1924, in Genoa, Liguria, Italy.
When was Luciano Secchi born?
Luciano Secchi was born on August 24, 1939, in Milan, Lombardy, Italy.
