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Lamont-Doherty Earth Observatory

Founding

  • Founded 1949 as the Lamont Geological Observatory of Columbia University, on a 125-acre estate in Palisades, New York, on the west bank of the Hudson River about 25 km north of Manhattan (Lamont-Doherty Wikipedia; Columbia Magazine, “Maurice Ewing and the Lamont-Doherty Earth Observatory” by Laurence Lippsett, Winter 2001).
  • The estate was the weekend residence of banker Thomas W. Lamont. His widow, Florence Haskell Corliss Lamont, donated it to Columbia University in late 1948 (deed received in late December 1948) (Lippsett 2001; Columbia Climate School / State of the Planet, 17 Oct 2024 — “Founded in 1949 as the Lamont Geological Observatory”).
  • Endowment: Columbia geology department chair Paul Kerr promised to raise $200,000 to establish the institution; he and Columbia president Dwight D. Eisenhower persuaded mining companies to provide the founding funding (Lippsett 2001).
  • The institution was created in part to keep William Maurice “Doc” Ewing at Columbia: MIT had offered Ewing a New Bedford estate to move his geophysics group there, and Columbia countered with the Lamont estate. Ewing’s students voted unanimously to stay at Columbia.

Renamings

  • 1969: Renamed Lamont-Doherty Geological Observatory following a major gift from the Henry L. and Grace Doherty Charitable Foundation (NYT 13 Jan 1969 “Columbia Project given $7 Million” cited in Wikipedia).
  • 1993: Renamed Lamont-Doherty Earth Observatory to reflect the broadened scope of work beyond geology proper.

Major scientific contributions

Drawn primarily from the Lamont-Doherty Milestones in Climate Science timeline (last updated 5 April 2024) and the Lippsett 2001 history:

  • 1947–60s: Marine geophysics and seismic profiling. Ewing pioneered using explosives at sea to image the seafloor crust. The 1947 cruise on Woods Hole’s Atlantis revealed unexpectedly thin oceanic crust (~3 miles vs. >20 for continents) and disturbed sediment cores that overturned the prevailing static-seafloor view.
  • Plate tectonics. Bruce Heezen and Marie Tharp constructed the first physiographic maps of the North Atlantic seafloor (1957) and ultimately the entire global ocean floor (1977), exposing the mid-ocean ridge system. Walter Pitman and James Heirtzler analysed the symmetric magnetic-stripe record south of the Pacific-Antarctic Ridge in 1966, a key piece of evidence for seafloor spreading. Lynn Sykes, Jack Oliver and Bryan Isacks plotted earthquake locations along transform faults and Pacific trenches; subduction was identified.
  • 1956: Ewing & Donn, “A Theory of Ice Ages,” Science 123:1061-1066 — the first Lamont paper proposing large-scale climate cycles.
  • 1960: Wallace Broecker, “Natural radiocarbon in the Atlantic Ocean,” J. Geophys. Res. — foundational for the Great Ocean Conveyor concept.
  • 1975: Wallace Broecker, “Are we on the brink of a pronounced global warming?,” Science — the paper credited with introducing “global warming” into the scientific literature.
  • 1976: Hays, Imbrie & Shackleton, “Variations in earth’s orbit—pacemaker of the ice ages,” Science — definitive evidence for Milankovic forcing of ice ages.
  • 1986: Cane, Zebiak & Dolan, “Experimental forecasts of El Niño,” Nature 322:827-832 — the first dynamical forecast of an ENSO event (Lamont milestones page entry for 1986).
  • 1988: Maureen Raymo et al., Uplift-Weathering Hypothesis (Geology).
  • 1996, 2002, etc.: Broecker on the Great Conveyor; Taro Takahashi on global ocean CO₂ flux; Edward Cook on global drought atlases from tree rings; Hsiang, Meng & Cane (2011) on ENSO and civil conflict; Kelley et al. (2015) on Syrian drought.

Role in climate dynamics as a field

Lamont’s tropical-climate group, anchored by Cane after 1984 and Zebiak after 1985, made Lamont one of the two or three places in the world where coupled atmosphere-ocean modelling for ENSO was developed. The same campus housed Wallace Broecker’s paleoclimate program, the world-leading Tree Ring Lab under Edward Cook, and the Lamont Deep-Sea Core Repository (largest academic repository of ocean cores; today over 19,000 cores from over 20,000 locations and 40 miles of cumulative core).

Computing infrastructure in the 1980s

  • The Cane group’s published descriptions, the IRI ENSO history page, and Cane’s own remarks consistently describe a Lamont departmental DEC VAX (a VAX 11/780-class machine) as the platform on which the Cane-Zebiak coupled model was developed and run during 1984-1986.
  • I could not locate a primary-source statement from Cane, Zebiak, or Dolan that names the specific VAX model number (11/780 vs. 11/750 vs. later 8000-series) for the original 1985-86 forecast. Several secondary sources name 11/780 by inference; the original 1986 Nature paper does not name the computer in the abstract or methods sections accessible to me. This is worth flagging as not directly verified to a model number.
  • The point is independently consistent with how mid-1980s academic earth-science computing worked: a departmental VAX running VMS or Berkeley UNIX was the standard platform for individual research groups’ Fortran modelling work. Cray vector supercomputers were available at NCAR (and Cane’s CV records his serving on NCAR review panels), but the Cane-Zebiak intermediate-complexity model was specifically designed to be tractable on a VAX-class minicomputer rather than to require a Cray.

Directors

From Wikipedia: Lamont-Doherty Earth Observatory:

  • 1949-1972: Maurice Ewing
  • 1972-1980: Manik Talwani
  • 1981 (interim): Neil Opdyke
  • 1981-1989: C. Barry Raleigh
  • 1989-1990 (interim): Dennis V. Kent
  • 1990-1994: Gordon Eaton
  • 1994-1996 (interim): John C. Mutter
  • 1996-1999: Peter M. Eisenberger
  • 1999-2000 (interim): John C. Mutter
  • 2000-2011: G. Michael Purdy
  • 2011-2012 (interim): Arthur L. Lerner-Lam
  • 2012-2020: Sean Solomon
  • 2020-2023: Maureen Raymo
  • 2023-present (interim): Stephen L. Goldstein

IRI

The International Research Institute for Climate and Society (IRI) was established in 1996 at Lamont as a cooperative agreement between NOAA’s Climate Program Office and Columbia University; an antecedent NOAA pilot project began in 1994 (IRI website; State of the Planet, 30 Sept 2022 — “the IRI, which officially came into existence as a NOAA pilot project in 1994 […] 25 years ago [from 2022]”).

  • Mark Cane led the 1996 establishment (IRI Vetlesen Prize feature, 23 Jan 2017).
  • Stephen Zebiak became Director-General 2003-2012.
  • IRI is now part of the Columbia Climate School and remains physically located on the Lamont campus (61 Route 9W, Monell Building, Palisades, NY 10964).
  • IRI’s first public seasonal forecast was issued in September 1997.

Sean C. Dolan — third author on the 1986 Nature paper

I was unable to verify much about Sean C. Dolan beyond his coauthorship.

  • He is the third author on Cane, Zebiak & Dolan (1986), Nature 321(6073):827-832, “Experimental forecasts of El Niño” (Wikipedia citation; Lamont-Doherty Milestones timeline 1986 entry).
  • He is also a coauthor on follow-up papers: Zebiak, Cane and Dolan, “Long-range forecasting of ENSO,” Proceedings of the Second WMO Conference on Long-Range Forecasting, Toulouse, May 1987 (in Cane CV under 1987 publications).
  • He is also coauthor on Barnett, Graham, Cane, Zebiak, Dolan, O’Brien & Léger (1988), “On the prediction of the El Niño of 1986-1987,” Science 241:192-196.
  • After ~1988 his name does not appear in Cane’s CV or in any of the Cane / Zebiak follow-up papers I checked.
  • Search engines surface only modern Sean Dolans (a Director of Engineering at GridX, a Software Engineer II at Culture Biosciences, a cinematographer/editor at Overtime, etc.) — none of whom appear to be the same person.
  • The most likely interpretation: Sean C. Dolan was a programmer / scientific staff member in the Cane group at Lamont in the mid-1980s, who contributed code and computational implementation to the original Zebiak-Cane model and the 1986 forecast, and either left research or moved to a position that does not have a strong online footprint after the late 1980s. The IRI history page treats him as part of the Lamont team alongside Cane and Zebiak (IRI ENSO maproom — “the team of Mark Cane, Stephen Zebiak and Sean Dolan”).

This is the most that can be said responsibly. A definitive Sean C. Dolan biography would require access to Lamont staff records or direct correspondence with Cane.