The National union catalogs, 1963- A cumulative author list representing Library of Congress printed cards and titles reported by other American libraries.

Mode of access: Internet.

National union catalog; a cumulative author list representing Library of Congress printed cards and titles reported by other American libraries.

Includes entries for maps and atlases.

American printmaking before 1876 : fact, fiction, and fantasy : papers presented at a symposium held at the Library of Congress, June 12 and 13, 1972.

Sponsored by the Library of Congress.

The National union catalog; a cumulative author list representing Library of Congress printed cards and titles reported by other American libraries.

"A supplementary publication which provides additional locations of titles included in earlier issues of the catalog."

Library of Congress acquisitions.

Microfiche.

Outline of the Library of Congress classification.

Earlier editions were issued by the Classification Division of the Library of Congress under title: Classification. Outline scheme of classes.

A list of geographical atlases in the Library of Congress, with bibliographical notes.

Vols. 1-4, compiled under the direction of P. L. Phillips, chief. Division of Maps and Charts; v. 5- by C.E. LeGear.

Rules for descriptive cataloging in the Library of Congress.

Mode of access: Internet.

United States author headings including those adopted by the Library of Congress as appearing in the Union catalog,

Mode of access: Internet.

Rules for descriptive cataloging in the Library of Congress.

Accompanied by "Supplement. 1949-51." (19 p. 26 cm.) Published: Washington, 1952.

United States author headings including those adopted by the Library of Congress as appearing in the Union catalog.

Mode of access: Internet.

The National union catalog, pre-1956 imprints ; a cumulative author list representing Library of Congress printed cards and titles reported by other American libraries /

Vols. 686-754 comprise a supplement.

The Anomalous Merging of the African and North Atlantic Jet Streams during the Northern Hemisphere Winter of 2010

The North Atlantic jet stream during winter 2010 was unusually zonal, so the typically separated Atlantic and African jets were merged into one zonal jet. Moreover, the latitude–height structure and temporal variability of the North Atlantic jet during this winter were more characteristic of the North Pacific. This work examines the possibility of a flow regime change from an eddy-driven to a mixed eddy–thermally driven jet. A monthly jet zonality index is defined, which shows that a persistent merged jet state has occurred in the past, both at the end of the 1960s and during a few sporadic months. The anomalously zonal jet is found to be associated with anomalous tropical Pacific diabatic heating and eddy anomalies similar to those found during a negative North Atlantic Oscillation (NAO) state. A Lagrangian back-trajectory diagnosis of eight winters suggests the tropical Pacific is a source of momentum to the Atlantic and African jets and that this source was stronger during the winter of 2010. The results suggest that the combination of weak eddy variance and fluxes in the North Atlantic, along with strong tropical heating, act to push the jet toward a merged eddy–thermally driven state. The authors also find significant SST anomalies in the North Atlantic, which reinforce the anomalous zonal winds, particularly in the eastern Atlantic.