Alberto dos Santos Franco

Alberto dos Santos Franco the Admiral Franco (Rio de Janeiro, December 5, 1913 - São Paulo, May 4, 2011) was an officer of the Navy of Brazil. In his career, reached the rank of rear admiral

He was the son of Luiz de Araujo Franco and Adelina Santos Franco.

He attended high school in the traditional school Pedro II in Rio de Janeiro and became a navy officer in the Naval Academy in 1933. Participated in the war efforts of the Navy of Brazil during World War II. Later he specialized in studies related to the phenomena of the tides. He was promoted to rear admiral in 1961, he won several medals and was awarded the title of Professor Emeritus of the Oceanographic Institute of the University of São Paulo in 1996, where he was director in the period 1970-1974. Developed computational methods based on techniques of Fast Fourier Transform for analysis and prediction of tides. In 1976 he earned a doctorate in Naval Engineering from Polytechnic School of the University of São Paulo defending thesis entitled "Components in Harmonic Tide Small Funds". These components are generated by tidal currents, where the periodic movements (amplitude and phase) of Sun and Moon in "around the Earth" are combined in a nonlinear way leading to other components called small fund. It is now generated by the transformation of the tide in ocean barotropic baroclinic tides in the shallow regions of offshore.

(Ministry of the Navy - 1937 to 1955)

Letters - Areas802 - Port Natal803 - Canal de Sao Roque
1103 - Bay of Aratu and vicinity (campaign manager)
1400 - From Rio Doce to Cabo de Sao Tome
1500 - Cape of São Tomé to Rio de Janeiro
1504 - Bay of Búzios
1505 - Cape Buzios Cabo Frio
1700 - The Island of San Sebastian on the island of Bom Abrigo
1701 - Port of Santos
1800 - From Ilha de Bom Abrigo to Ilha do grove
1804 - Port of South San Francisco
1805 - Fairway to Joinville
1809 - Bay of Itapocoroia (campaign manager)
1810 - Bay of Porto Belo
1900 - From the Island Grove Towers (campaign manager)
1905 - Port of Florianópolis (campaign manager)

• Comparative precision of prismatic astrolabes. InternationalHydrographic Review XXVIII(1),1951.
• Modification of the mean projection planeoftheMultiplexapparatus.InternationalHydrographic Review, XXIX( ), 1952.Work awarded by the Brazilian Navy.
• Shallow-watertides.InternationalHydrographicReview,XXXIII(1), 1956.
• Brazilian Navy Instruction onTides.InternationalHydrographic Review, XL(1), 1963.
• Harmonic Analysis ofthetidebythesemi-graphicmethod.InternationalHydrographicReview,XL(2), 1963.
• Adjustment ofaerialtriangulation.InternationalHydrographic Review, XLI(1), 1964.
• Harmonic analysis of tides for seven days of hourly observations. InternationalHydrographicReview, XLI(2), 1964.
• Harmonic analysis of tides through linear combinations of ordinates. International Hydrographic Review, XLII(1), 1965.
• Relativeaccuracyofsomemethodsofharmonicanalysisoftides.InternationalHydrographic Review. XLII(2), 1965.
• Semi-graphic method of analysis for seven days' tidal observations. International Hydrographic Review, XLIII(1),1966.
• Datum forsoundingreduction.InternationalHydrographic Review, XLIII(2), 1966.
• The Munk-Cartwright method for prediction and analysis of tides. International HydrographicReview, XLV(1), 1968.
• Generalization ofy-parallaxdifferentialformula.PhotogrammetriaElsevierPublishingCompany, Amsterdam, 23,(1968) 95-102.
• Fundamentalsofspectralanalysisofdiscreteobservations.InternationalHydrographicReview. XLVII(1), 1970.
• The Fast Fourier Transform and its application to tidal oscillations. Boletim do Instituto Oceanográfico da Universidade de São Paulo, 20(1). 1971. (in collaboration with N.J. Rock).
• A hybrid algorithm for the rapid Fouriertransformofextensive series of data.Boletimdo Instituto Oceanográfico da Universidade de São Paulo, 20(2), 1971. (in collaboration with N.J. Rock).
• Comparative accuracy ofFouriertidalanalysisemployingdifferenttimespanswithreference to Doodson analysis. The2nd International Ocean Development Conference, Toquio, 1972(preprint). (in collaboration with N.J. Rock).
• Improved harmonic analysis. Revista Ciência e Cultura, 25(2).1973.(in collaboration with N.J. Rock).
• A refined method of tidal analysis. The Belle W. BaruchLibraryinMarineScience, 7.SyposiumonEstuarineTransportProcess held in Georgetown, South Carolina, 1976. Editedby Böjrn Kjerfve. University of South Carolina press.
• On the Karunaratne's method of checking hourly heights.International Hydrographic Review, LIX(1), 1982.
• Improved technique of short period analysis. CanadianHydrographicServiceCentennialConference. Ottawa, 1983. (in collaboration with J. Harari).
• Tidal prediction with a smallpersonalcomputer.International Hydrographic Review, LXII(2).
• On the stability of long seriestidalanalysis.1993(in collaboration with J. Harari).International Hydrographic Review, Monaco, LXX(1), march.
• Rapid tidal analysis, from 3 ¾ julian years span up to a nodal cycle span, with a PC. 1995.International Hydrographic Review, Monaco, LXXII(1), Monaco, march.