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Climate of 2005 - November in Historical PerspectiveIncluding Boreal FallNational Climatic Data Center 14 December 2005 |
Global Highlights:
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Contents of this Section: |
The data presented in this report are preliminary. Ranks and anomalies may change as more complete data are received and processed. The most current data may be accessed via the Global Surface Temperature Anomalies page. |
IntroductionTemperature anomalies for September-November and November 2005 are shown on the four maps below. The dot maps on the left provides a spatial representation of anomalies calculated from the Global Historical Climatology Network (GHCN) data set of land surface stations using a 1961-1990 base period. The maps on the right are an experimental blended product of a merged land air and sea surface temperature anomaly analysis which is based on data from the GHCN of land temperatures and the Comprehensive Ocean-Atmosphere Data Set (COADS) of Sea-Surface Temperature (SST) data. Temperature anomalies with respect to 1961-1990 for land and ocean are analyzed separately and then merged to form the global analysis. Additional information on this product is available.During the boreal fall, temperatures were more than 3°C above average across large parts of Europe, Russia, China and much of North America. Cooler than average temperatures were observed in Iceland, Turkey, the U.S. Pacific Northwest, western Mongolia, and western Australia. Warmer than average SSTs occurred over the North Pacific and North Atlantic. Cooler than average conditions were observed off the coasts of Ecuador, Peru, California and in the Niño 3 region. |
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During November 2005, there were above average temperatures over Scandinavia, Russia, eastern China, eastern Australia and the majority of North America. Cooler than average temperatures were observed over Alaska, Peru, the Iberian Peninsula, southern portions of Europe and the U.S. Pacific Northwest. Warmer than average SSTs occurred in the North Pacific and the North Atlantic. Cooler than average conditions were observed in the Niño 3 and 3.4 regions and the South Indian Ocean. |
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The mean position of upper level ridges of high pressure and troughs of low pressure (depicted by positive and negative 500 millibar height anomalies on the September-November 2005 map and the November 2005 map) are generally reflected by areas of positive and negative temperature anomalies at the surface, respectively. For other Global products see the Climate Monitoring Global Products page. |
Images of sea surface temperature conditions are available for all weeks during 2005 at the weekly SST page |
Temperature Rankings and Graphics |
Current Month / Seasonal / Year-to-date |
November | Anomaly | Rank | Warmest Year on Record |
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GlobalLandOcean Land and Ocean |
+1.04°C (+1.87°F) +0.42°C (+0.76°F) +0.61°C (+1.10°F) |
2nd warmest 9th warmest 3rd warmest |
2004 (+1.14°C/2.05°F) 1997 (+0.57°C/1.03°F) 2004 (+0.69°C/1.24°F) |
Northern HemisphereLandOcean Land and Ocean |
+1.37°C (+2.47°F) +0.51°C (+0.92°F) +0.85°C (+1.53°F) |
3rd warmest 5th warmest 2nd warmest |
2004 (+1.47°C/2.65°F) 2004 (+0.60°C/1.08°F) 2004 (+0.95°C/1.71°F) |
Southern HemisphereLandOcean Land and Ocean |
+0.19°C (+0.34°F) +0.37°C (+0.67°F) +0.34°C (+0.61°F) |
40th warmest 10th warmest 12th warmest |
1990 (+0.90°C/1.62°F) 1941 (+0.70°C/1.26°F) 1941 (+0.61°C/1.10°F) |
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September-November | Anomaly | Rank | Warmest Year on Record |
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GlobalLandOcean Land and Ocean |
+1.05°C (+1.90°F) +0.45°C (+0.81°F) +0.63°C (+1.13°F) |
warmest 4th warmest warmest |
2nd - 2004 (+0.89°C/1.60°F) 1997 (+0.54°C/0.97°F) 2nd - 2003 (+0.61°C/1.10°F) |
Northern HemisphereLandOcean Land and Ocean |
+1.23°C (+2.21°F) +0.54°C (+0.97°F) +0.82°C (+1.48°F) |
warmest 4th warmest warmest |
2nd - 2004 (+1.01°C/1.82°F) 2003 (+0.61°C/1.10°F) 2nd - 2004 (+0.75°C/1.35°F) |
Southern HemisphereLandOcean Land and Ocean |
+0.59°C (+1.06°F) +0.40°C (+0.72°F) +0.44°C (+0.79°F) |
6th warmest 9th warmest 8th warmest |
2002 (+0.72°C/1.30°F) 1997 (+0.55°C/1.00°F) 1997 (+0.58°C/1.04°F) |
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January-November | Anomaly | Rank | Warmest Year on Record |
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GlobalLandOcean Land and Ocean |
+0.97°C (+1.75°F) +0.44°C (+0.79°F) +0.60°C (+1.08°F) |
2nd warmest 2nd warmest 2nd warmest |
1998 (+0.99°C/1.78°F) 1998 (+0.48°C/0.86°F) 1998 (+0.63°C/1.13°F) |
Northern HemisphereLandOcean Land and Ocean |
+1.01°C (+1.82°F) +0.52°C (+0.94°F) +0.72°C (+1.30°F) |
3rd warmest warmest warmest |
2002 (+1.05°C/1.90°F) 2nd - 1998 (+0.50°C/0.90°F) 2nd - 1998 (+0.71°C/1.28°F) |
Southern HemisphereLandOcean Land and Ocean |
+0.74°C (+1.33°F) +0.40°C (+0.72°F) +0.46°C (+0.83°F) |
2nd warmest 5th warmest 4th warmest |
1998 (+0.80°C/1.44°F) 1998 (+0.48°C/0.86°F) 1998 (+0.54°C/0.97°F) |
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PrecipitationThe maps below represent anomaly values based on the GHCN data set of land surface stations using a base period of 1961-1990. During the 2005 boreal fall, above average precipitation fell over areas that include Alaska, the Caribbean, India, the Philippines, Norway, Peru and the northeastern U.S. Below average precipitation was observed in Eastern Europe, the southern U.S., southeastern China and coastal Brazil.During November 2005, above average precipitation fell over areas that include India, Peru, Colombia, parts of Eastern Europe and the U.S. Upper Great Plains. Below average precipitation was observed in the Philippines, southeastern Asia, the southern U.S, Mozambique and most of Brazil. |
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ENSO SST AnalysisClick here for animated loop |
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TroposphereCurrent Month / SeasonalMid-tropospheric and lower stratospheric temperature data are collected by NOAA's TIROS-N polar-orbiting satellites and adjusted for time-dependent biases by the Global Hydrology and Climate Center at the University of Alabama in Huntsville (UAH). An independent analysis is also performed by Remote Sensing Systems (RSS) and a third analysis has been preformed by Dr. Qiang Fu of the the University of Washington (UW) (Fu et al. 2004)**. The tables below summarize mid-tropospheric conditions for September-November and November 2005. These temperatures are for the atmospheric layer centered in the mid-troposphere (approximately 2-6 miles above the Earth's surface) which also includes a portion of the lower stratosphere. (The MSU channel used to measure mid-tropospheric temperatures receives about 25 percent of its signal above 6 miles). For additional information on MSU data used in this report, please see the Microwave Sounding Unit page. All datasets indicate November and boreal fall temperatures were above average. Records began in 1979. |
November | Anomaly | Rank | Warmest Year on Record | Trend |
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UAH mid-trop | +0.15°C/0.27°F | 5th warmest | 2002 (+0.23°C/0.41°F) | +0.04°C/decade |
*RSS mid-trop | +0.30°C/0.54°F | 3rd warmest | 2002 (+0.32°C/0.58°F) | +0.12°C/decade |
**UW-UAH mid-trop | +0.21°C/0.38°F | 4th warmest | 2002 (+0.27°C/0.49°F) | +0.09°C/decade |
**UW-*RSS mid-trop | +0.44°C/0.79°F | warmest | 2nd - 2003 (+0.41°C/0.74°F) | +0.19°C/decade |
*Version 02_1 |
September- November |
Anomaly | Rank | Warmest Year on Record | Trend |
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UAH mid-trop | +0.20°C/0.36°F | 3rd warmest | 1998 (+0.29°C/0.52°F) | +0.07°C/decade |
*RSS mid-trop | +0.35°C/0.63°F | 2nd warmest | 1998 (+0.37°C/0.67°F) | +0.17°C/decade |
**UW-UAH mid-trop | +0.26°C/0.47°F | 3rd warmest | 1998 (+0.38°C/0.68°F) | +0.13°C/decade |
**UW-*RSS mid-trop | +0.48°C/0.86°F | 2nd warmest | 1998 (+0.50°C/0.90°F) | +0.22°C/decade |
*Version 02_1 |
StratosphereCurrent Month / SeasonalThe tables below summarize stratospheric conditions for September-November and November 2005. The stratosphere is located between 10-14 miles above the Earth's surface. Over the last decade, stratospheric temperatures have been below average in large part due to the depletion of ozone. The large increase in temperature in 1982 was caused by the volcanic eruption of El Chichon in Mexico, and the increase in 1991 was a result of the eruption of Mt. Pinatubo in the Philippines. Therefore the base period used is 1984-1990 which was chosen to avoid contamination by these eruptions. |
November | Anomaly | Rank | Coolest Year on Record |
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UAH stratosphere | -0.67°C (-1.21°F) | 2nd coolest | 2000 (-0.87°C/-1.57°F) |
*RSS stratosphere | -0.76°C (-1.37°F) | 2nd coolest | 2000 (-0.84°C/-1.51°F) |
*Version 02_1 |
September-November | Anomaly | Rank | Coolest Year on Record |
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UAH stratosphere | -0.63°C (-1.13°F) | 3rd coolest | 2000 (-0.78°C/-1.40°F) |
*RSS stratosphere | -0.71°C (-1.28°F) | Tied coolest/2000 | 3rd - 1996 (-0.63°C/-1.13°F) |
*Version 02_1 |
For additional details on precipitation and temperatures in November, see the Global Hazards page . |
ReferencesPeterson, T.C. and R.S. Vose, 1997: An Overview of the Global Historical Climatology Network Database. Bull. Amer. Meteorol. Soc., 78, 2837-2849. |
For all climate questions other than questions concerning this report, please contact the National Climatic Data Center's Climate Services Division:
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http://www.ncdc.noaa.gov/oa/climate/research/2005/nov/global.html
Downloaded Wednesday, 24-Sep-2008 18:42:41 EDT Last Updated Monday, 12-Dec-2005 16:40:19 EST by Candace.Tankersley@noaa.gov Please see the NCDC Contact Page if you have questions or comments. |