2002-2004 BIENNIAL REPORT Lamont-Doherty Earth Observatory the Earth Institute at Columbia University
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1 TABLE OF CONTENTS LAMONT-DOHERTY EARTH OBSERVATORY IS RENOWNED IN THE INTERNATIONAL SCIENTIFIC COMMUNITY for its success and innovation in advancing understanding of Earth, for its unique geological and climatological archives and state-of-the-art laboratory facilities, and for the outstanding achievement of its graduates. Observatory scientists observe Earth on a global scale, from its deepest interior to the outer reaches of its atmosphere, on every continent and in every ocean. They decipher the long record Voyagers on the stern of the U.S. icebreaker Nathaniel B. of the past, monitor the present, and seek to foresee Earth’s future. From global climate change to Palmer look northward to the sun peeking over a tabular earthquakes, volcanoes, nonrenewable resources, environmental hazards and beyond, the Observatory’s iceberg, as the research vessel cuts through sea ice fundamental challenge is to provide a rational basis for the difficult choices faced by humankind in the and heads toward Antarctica. Aboard the Palmer to collect samples of Southern Ocean stewardship of this fragile planet. seawater for geochemical analyses was Dee Breger, G. Michael Purdy who operated the scanning electron microscope facility at Director, Lamont-Doherty Earth Observatory Lamont-Doherty for decades. Breger, whose photography of the microscopic world has been widely acclaimed, cap- tured this macroscopic view. 2 Letter from the Director 3 Letter from the Director of The Earth Institute 4 Biology and Paleo Environment 8 Geochemistry 12 Marine Geology and Geophysics 16 Ocean and Climate Physics 20 Seismology, Geology and Tectonophysics 24 Office of Marine Affairs 28 Department of Earth and Environmental Sciences 34 Focused Initiative: Borehole Research Group 36 Focused Initiative: Remote Sensing 38 Focused Initiative: Data Management for the Geosciences 40 Special Events and Awards 44 Development 46 Lamont-Doherty Alumni Association 48 Administration 50 Staff Listings 56 Marie Tharp 1. A low-pressure system off the coast of Greenland. 1 6 2. Detail of 'Desolation Canyon' in Utah. Credit NASA 2 3. Lightening in Southeast Arizona 5 4. Volcanic activity in Hawaii National Park 3 5. Underwater sands in the Bahamas. Credit NASA 4 6. Sun scorched earth in India. Photo courtesy of Dee Breger, Drexel University 2 3 LETTER FROM THE DIRECTOR LETTER FROM THE DIRECTOR OF THE EARTH INSTITUTE “We all share one goal: to understand the Earth, “Lamont’s recruitment of world-class scientists upholds and in so doing, to benefit humankind.” the long tradition of consummate, unsurpassed expertise in earth sciences.” WE HAVE EXPERIENCED GREAT SUCCESS OVER THE TWO YEARS SINCE WE THIS HAS BEEN A MARVELOUS TWO YEARS OF ACCOMPLISHMENT BY THE published the first in this new series of biennial reports for the Observatory. Our core scientists of the Lamont-Doherty Earth Observatory. After reading this biennial activity, of course, is understanding the Earth, and we have made notable advances report, you will agree that, under the dynamic leadership of Dr. G. Michael Purdy, the in our understanding of climate, earthquake dynamics, river processes, and many Observatory’s expert research staff has made many leaps forward in our fundamental other areas of Earth research—just a small number of which you will find described understanding of Earth processes across all the major disciplines. These include the in this all-too-brief overview. reconstruction of a history of drought over the last 2000 years from tree-ring Our Tree-Ring Laboratory has taken on a five-year challenge to unravel the records, retrospective prediction of El Niño over the last 148 years, new advances mysteries of the Asian monsoon with a landmark grant from the National Science in our understanding of tectonics, and the acquisition of a new research vessel that Foundation. We have developed important new facilities, including the expansion of will surpass our current ability to use acoustic and seismic technologies to better the Borehole Research Group to serve the newly established international Integrated understand Earth processes. In addition, Lamont’s recruitment of world-class scientists Ocean Drilling Program and the very recent acquisition of a new research vessel to upholds the long tradition of consummate, unsurpassed expertise in earth sciences. replace R/V Maurice Ewing in 2006. These are just two examples of Observatory I am also thrilled by the growing linkages between researchers at the Observatory facilities that have significant impact not just on Lamont-Doherty researchers, but and elsewhere in the Earth Institute. The other Earth Institute research units at the also on the international research community. As it always has throughout its Lamont-Doherty campus—the International Research Institute for Climate Prediction illustrious history, Lamont-Doherty continues to play a vital role at the vanguard of (IRI), the Center for International Earth Science Information Network (CIESIN), the global efforts to study our planet. Center for Hazards and Risk Research, the Center for Rivers and Estuaries, the We have made major investments in our future by attracting a substantial new Center for Nonlinear Earth Systems, and the Tropical Agriculture Program—have group of research staff and faculty from other universities and institutions to join our especially benefited from an exchange of knowledge and collaboration made possible team in its quest to build the pre-eminent multidisciplinary earth science research by their presence on the Lamont campus. center in the world. A notable example is the World Bank-sponsored Natural Disaster Hotspots Naturally we are not without challenges. There have been setbacks and there program, which involves scientists from Lamont-Doherty, IRI and CIESIN. As these will continue to be significant barriers to be overcome as we build this great academic relationships develop and mature, we continue to see the deep intellectual institution within the maturing construct of Columbia’s Earth Institute. But as benefits in fostering truly innovative new ways to address complex problems in earth carbon dioxide concentrations continue to build in our atmosphere, as populations and environmental sciences and to develop practicable solutions to meet the increase concentrations in coastal areas, as developing nations battle disease and challenges of achieving sustainable development. malnutrition, and as water supplies are stressed to meet the increasing demands The Earth Institute and the Lamont-Doherty Earth Observatory have continued of the developing world, global decision-makers increasingly will turn to earth to foster stronger connections as well between the Observatory campus and scientists for ideas and solutions. I sense a slow but heartening growth in public Columbia’s Morningside Heights and Health Sciences campuses, in particular understanding of the direct relevance that earth science plays in their lives. Our efforts at all levels of education through education programs. A new M.A. degree in Climate and Society is the most recent example, with are critical to maintain this trend—from our ever-popular October Open House to our prestigious Ph.D. program. research scientists at the Observatory and the IRI launching an educational program to train a new generation of I hope you enjoy reading this report and the tremendous diversity in intellectual pursuits and research topics, professionals well-versed in the application of climate forecast information to critical decisions involving water the global reach of our research efforts, and the vast array of research approaches—from real-time observations resources, health, and agriculture. The Ph.D. degree in Sustainable Development is another new educational to laboratory experimentation and theoretical computer modeling. Through all this, do not lose sight of the fact program that relies on the scientific leadership of Observatory scientists as we strive to train social scientists in that we all share one goal: to understand the Earth, and in so doing, to benefit humankind. The importance the natural sciences that underpin sustainable development. of this goal is gradually being realized. In human history, its priority has never been higher. I hope you will This is truly an auspicious time for the Observatory, and thus, for the Earth Institute as a whole. I am deeply appreciate the essential role that the Observatory is playing in this mighty endeavor. grateful for the work of our colleagues at Lamont-Doherty, and know that I speak for the entire Earth Institute community when I congratulate the Observatory for its continued excellence. G. Michael Purdy Director Jeffrey D. Sachs Director, The Earth Institute at Columbia University 2002-2004 BIENNIAL REPORT Lamont-Doherty Earth Observatory The Earth Institute at Columbia University 4 5 BIOLOGY AND PALEO ENVIRONMENT BIOLOGY AND PALEO ENVIRONMENT Eddies: The ocean, like the Analyzing all the data they collected, the team All organisms are products of the environment in which summarized its findings in an article published in 2003 atmosphere, has “weather” in Deep-Sea Research. The researchers found that they exist, or existed. They influence their surrounding surface waters in the center of the eddy were cooler, IN OUR ATMOSPHERE, SWIRLING HIGH- AND saltier, and denser than waters outside the eddy. The environment, and they are influenced by it. low-pressure air masses form and interact in a interior waters were also full of nutrients and lush with fast-paced dynamic that generates