CIMA   09099
CENTRO DE INVESTIGACIONES DEL MAR Y LA ATMOSFERA
Unidad Ejecutora - UE
artículos
Título:
South America in State of the Climate in 2006
Autor/es:
RUSTICUCCI MATILDE; CAMACHO JOSÉ LUIS
Revista:
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
Editorial:
American Meteorological Society
Referencias:
Año: 2007 vol. 88 p. 90 - 94
ISSN:
0003-0007
Resumen:
The State of the Climate in 2006 report summarizes the
years weather and climate conditions, both globally and
regionally. In addition, the year is placed into a long-term
climatological context. Furthermore, notable events are
also discussed.
Overall global temperatures were fifth or sixth warmest
on record, depending on the dataset, continuing an
upward trend in temperatures. Many countries and regions
experienced their record warmest year (or tied for warmest),
including Spain, the Netherlands, the United Kingdom,
and China, as well as parts of Australia and Canada. In many
regions, the warmth in 2006 is statistically indistinguishable
from the record warmth in 1998. However, 1998 was
influenced by the unprecedented warming associated with
the record 1997/98 El Niño, whereas 2006 was marked by a
2005/06 La Niña that transitioned into a weak-to-moderate
2006/07 El Niño.
Consistent with the warming, sea ice extent in both
polar regions reached record or near-record minima. In addition,
Antarctic ozone concentrations reached an all-time
minimum. Also, carbon dioxide measurements increased
in the atmosphere by 2.3 parts per million (ppm) in 2006
to reach a global average of 381.1 ppm.
In the global oceans, sea levels were above average
for ~80% of the ocean. The global mean sea level anomaly
change of +6 mm from 2005 was the highest increase since
the altimeter record began in 1993. Relative sea level change
was also the highest ever recorded. Significant heat flux and
current anomalies were observed in the regions of the 2006
El Niño and Indian Ocean dipole mode event.
Despite the warmth around the globe, tropical cyclone
counts were near average. However, Tropical Cyclone
Larry made landfall in northern Australia as one of the
most intense storms in decades. Following the record Atlantic
hurricane season of 2005, the 2006 season was very
quiet.