- Sektör: Education
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Founded in 1876, Texas A&M University is a U.S. public and comprehensive university offering a wide variety of academic programs far beyond its original label of agricultural and mechanical trainings. It is one of the few institutions holding triple federal designations as a land-, sea- and ...
This comprised two separate studies: the TTO North Atlantic Study (TTO/NAS) and the TTO Tropical Atlantic Study (TTO/TAS). The 1981 North Atlantic Study (NAS) experiment cruise consisted of seven legs and visited 250 hydrographic stations across the North Atlantic in 200 days. About 9000 water samples were taken for analysis of salinity, oxygen, and nutrients; 3000 samples were taken for tritium analysis; and 1000 samples for radiocarbon analysis. The TTO/NAS data160 is available from the CDIAC.
Industry:Earth science
This consists of all water in the liquid phase distributed on the Earth, including the oceans, interior seas, lakes, rivers, and subterranean waters.
Industry:Earth science
This is a data set that contains raw and objectively analyzed fields of surface marine anomalies of fluxes of heat, momentum and fresh water along with several other parameters. It was produced at the University ofWisconsin-Milwaukee by A. M. da Silva and C. C. Young. These monthly fields were derived from the COADS data set and are available in an electronic archive166 along with some documentation.
Industry:Earth science
This is a high resolution temporal and spatial study whose objective is to understand how the properties of the abyssal boundary layer respond to and modify the incoming chemical signal from the surface layers and therefore affect the paleoceanographic record in the underlying sediment. BENGAL aims to quantify and characterize the incoming flux (with time–lapse sediment traps and midwater particle cameras), its resuspension (with transmissometers and current meters), and its ultimate deposition (with chemical analysis of core samples and time–lapse sea–bed photography).
Industry:Earth science
This is a temperature defined and measured so as to avoid the effects of the daytime heating of the decks of ships, the platforms on which such things are usually measured.
Industry:Earth science
This is an extensive data set that was created by combining, editing and summarizing global in situ marine data from many sources. It covers the period 1854-1992. It is a cooperative project among ERL, NOAA, the NCDC, CIRES and NCAR. Extensive hypertext documentation24 is available. There is also a further processed version of this data set called UWM/COADS.
Industry:Earth science
This is defined in the IHO’s ”Standardization of Undersea Feature Names” (3rd Ed., April 2001) as “part of the ocean floor or seabed that has measurable relief or is delimited by relief.”
Industry:Earth science
This is the most important of the greenhouse gases with an atmospheric concentration of 353 ppm (in 1990), up from an estimated 260-290 in pre-industrial times (pre-1880). This gas plays a very large part in the natural carbon cycle, with the amount of carbon taken out of the atmosphere each year by plant photosynthesis being almost perfectly balanced by the amount put back into the atmosphere by the processes of animal respiration and plant decay. The chief natural sources the burning of coal, oil and natural gas, the so-called fossil fuels, and the cutting down and burning of forests, with the latter contributing about a third as much as the former.
Industry:Earth science
This refers to an apparent contradiction between tropical SSTs as inferred from various proxy data and as calculated by the present generation of computer models for past warm periods. The measurements for the Pliocene, Eocene and Cenomanian suggest that tropical SSTs were not significantly greater than those at present, while model simulations for these times show significant differences.
Industry:Earth science
This refers to data, e.g. temperatures, rainfall amounts, atmospheric pressure, etc., that have been gathered via direct measurement as opposed to proxy data. Most of these records (at least the reliable ones) are on the order of a hundred years or less in duration, with perhaps the longest being a temperature record for central England prepared by Manley (1974) that extends back to 1659.
Industry:Earth science
