# Ocean angular momentum proxy — annual-mean ECCO_50yr total lod
# Source: https://datacenter.iers.org/data/191/ECCO_50yr.chi
# Temporal coverage: 1949.5–2002.5
# Units: milliseconds of lod (mass + motion terms)
# Construction: simple annual mean of 10-day ECCO_50yr total lod values
# Purpose: diagnostic-only low-frequency physical proxy for
#          measured-era Delta T bridge analysis.
# Columns:
#   decimal_year annual_mean_oam_lod_ms
 1949.5  -5.4634361250e-03
 1950.5  -9.7800571682e-03
 1951.5  -1.4683817843e-02
 1952.5  -2.2077389073e-02
 1953.5  -1.9151487665e-02
 1954.5  -1.9928453211e-02
 1955.5  -1.3369624171e-02
 1956.5  -1.2921287894e-02
 1957.5  -3.7227870276e-03
 1958.5  9.3458006948e-03
 1959.5  -6.4694586776e-04
 1960.5  -7.4440151437e-04
 1961.5  -5.1347610521e-03
 1962.5  8.1846222463e-03
 1963.5  -9.9023720473e-03
 1964.5  -2.3292190724e-03
 1965.5  -5.9686828081e-03
 1966.5  -1.0866928446e-02
 1967.5  3.1811142215e-03
 1968.5  2.6703471288e-03
 1969.5  4.0146247557e-03
 1970.5  3.2823002954e-03
 1971.5  -1.2167817804e-03
 1972.5  -6.6257781182e-03
 1973.5  7.1041027644e-03
 1974.5  1.0488102506e-02
 1975.5  -6.3310451226e-03
 1976.5  -2.1251191389e-03
 1977.5  -3.3518402854e-03
 1978.5  7.5164514388e-03
 1979.5  1.2700995434e-02
 1980.5  3.0333825446e-03
 1981.5  -2.5307899103e-03
 1982.5  2.9787432333e-03
 1983.5  6.7408715571e-03
 1984.5  3.5177707064e-03
 1985.5  8.8759492428e-03
 1986.5  2.1004468097e-03
 1987.5  5.5160228199e-03
 1988.5  -7.8402315414e-03
 1989.5  1.1299551559e-02
 1990.5  -1.2128765302e-04
 1991.5  9.3776622235e-03
 1992.5  -5.4328808287e-05
 1993.5  1.8778251704e-02
 1994.5  3.4865494453e-03
 1995.5  -8.6755021797e-04
 1996.5  2.3572657432e-04
 1997.5  3.0874957769e-03
 1998.5  8.3674143247e-03
 1999.5  1.2344977038e-02
 2000.5  7.1968142001e-03
 2001.5  6.8930594766e-03
 2002.5  7.2837638352e-03
 2003.5  -1.5528015400e-02
