NOAA 96-2

Contact:  Jeanne Kouhestani                     FOR IMMEDIATE RELEASE
                                                1/24/96

NOAA Ship MALCOLM BALDRIGE Completes Around-the-World Cruise to Research Global Climate Change

After successfully completing a year-long scientific expedition to gather critical data on the ocean's role in global climate change, global warming, and the El Nino phenomenon, the MALCOLM BALDRIGE, a National Oceanic and Atmospheric Administration research ship, has returned to the United States.

This feat -- involving nine U.S. institutions and six foreign countries, and covering 58,000 nautical miles -- marks the first time in the Commerce Department agency's 25-year history that a NOAA vessel has circumnavigated the globe on a scientific voyage.

"This research will provide a sound scientific base for understanding ocean-atmosphere exchange processes and their effects on climate and climate change in the Atlantic, Indian, and Equatorial Pacific oceans, as well as abundance, diversity and distribution of marine organisms in the Arabian Sea," said NOAA Corps Captain Craig S. Nelson, commanding officer of the ship.

"In some cases the data will be used to establish baseline measurements to which future measurements can be compared," Nelson said. "For example, high altitude ozone samples collected during this cruise were some of the first comprehensive ozone measurements ever taken over the western Indian Ocean. They will help determine how far north the Antarctic ozone hole now extends, and give a basis for comparison in the future."


     Following are highlights of the cruise:

Global Climate Change.  As part of the international World
Ocean Circulation Experiment (WOCE), NOAA scientists did around-the-
clock sampling and analysis of deep-ocean temperature, salinity,
oxygen and velocity measurements to study the interrelationships
among ocean currents, the atmosphere, and world climate.  Thirty
satellite-tracked drifting buoys were released to map the near-
surface circulation in the Indian Ocean and Arabian Sea that changes
seasonally in response to the southwest monsoon.  These buoys are
tracked by NOAA's Global Drifter Center in Miami, Fla., and their
data are also used for global weather forecasting.

Researchers also sampled the massive coral outcroppings in the Seychelles, which will be used to reconstruct the most recent 500- year climate history in the region. This may reveal new information on year-to-year, decadal, and centennial changes in the global climate system.

Living Marine Resources. As part of the U.S. Global Ocean Ecosystem Dynamics (GLOBEC) project, on separate legs of the cruise, scientists used a variety of sampling gear to study how coastal and open-ocean upwelling generated by the seasonal monsoon system of the Indian Ocean affects the abundance, distribution and diversity of marine organisms, and how these organisms respond to the dramatic seasonal reversal of the monsoon system.

Researchers also collected new information on more than 600 different schools of marine mammals, documented patterns in seabird abundance and distribution, sampled nearly 500 specimens of flying fish, and sighted more than 30 marine turtles hundreds of miles out to sea.

Global Warming. Throughout the voyage, scientists conducted underway sampling of carbon dioxide, which will be used to determine the influence of the ocean on the concentrations of carbon dioxide in the atmosphere, as part of the Ocean-Atmosphere Carbon Exchange Study (OACES). They also performed baseline measurements of total carbon and carbon dioxide in the Indian Ocean to map the source and sink regions for carbon dioxide.

Continuous underway sampling was also conducted to map the distribution of atmospheric aerosols and pollutants as part of the Radiatively Important Trace species (RITS) project. Weather balloons were used to sample and map the distribution of ozone in the upper atmosphere.

El Nino. The ship deployed or repaired 20 surface buoys in the 63-buoy Tropical Atmosphere Ocean (TAO) array that monitors ocean-atmosphere interactions in the tropical Pacific Ocean. The real-time data generated are used to forecast global weather as well as to improve our ability to understand and predict the El Nino phenomenon in the tropical Pacific Ocean and its effects in modifying the world's climate.

The MALCOLM BALDRIGE was part of a coordinated international expedition that included other vessels of the U.S. academic and foreign research fleet. All of the shipboard research was coordinated by the scientific programs. The logistics of the research done aboard the BALDRIGE and management of the vessel was handled by the NOAA Corps. ###

NOTE TO EDITORS: A reception will be held for members of the expedition on Thursday, 1/25, 6-9 p.m., at the Leif Erikson (Seaman's) Club at the Port of Miami on Dodge Island. Media are invited to attend. NOAA Corps officers and NOAA and university scientists will be available for interviews.