Un-Uz

 

uncentered statistics

Statistics that retain information on the spatially-averaged changes in the fields being compared, i.e. the spatial-mean components are not subtracted so as to compare only the anomalies about the means as would be the case with centered statistics.

 

UNEP

Acronym for the United Nations Environment Programme. More information can be found at the UNEP Web site.

 

UNESCO

Acronym for United Nations Educational, Scientific and Cultural Organization, a UN organization founded in 1945 to contribute to peace and security in the world by promoting collaboration among nations through education, science, culture and communication. See the UNESCO Web page.

 

Unified Stratigraphic Time-scale

A proposed universal geologic time scale combining evidence from both relative and absolute time scales. Another such proposed scale is the SSS.

 

UNOLS

Acronym for University National Oceanographic Laboratory System.

 

USAP

Abbreviation for United States Antarctic Program, which is an NSF program to coordinate all U.S. activities in Antarctica.

 

USGCRP

Acronym for U.S. Global Change Research Program, established in 1989 by a consortium of 18 Federal agencies and departments to study the many facets of global change, e.g. climate change, greenhouse warming, stratospheric ozone depletion, etc. More information can be found at the USGCRP Web site. The USGS GCRP component contributes by documenting the character of past and present environments and by documenting the geological, hydrological, geochemical, and geophysical processes involved in environmental change.

 

U.S. Global Warming Prevention Act

A 1989 act that called for the revision of the Montreal Protocol for reducing CFC production by phasing out all production within 5 to 7 years.

 

USGS

Abbreviation for United States Geological Survey. See the USGS Web site.

 

USHCN

Abbreviation for the United States Historical Climatology Network, a high-quality moderate-sized data set of monthly averaged maximum, minimum, and mean temperature adn total monthly precipitation developed to assist in the detection of regional climate change. See the USHCN Web site.

 

UTS

See Unified Stratigraphic Time-scale.

 

UV

Abbreviation for ultraviolet.

 

UWM/COADS

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 of Wisconsin-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 archive along with some documentation.