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Posts Tagged ‘temperature record

Climate change truth wallops USA hard

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These records are based on the historical daily observations archived in NCDC’s Cooperative Summary of the Day data set and preliminary reports from Cooperative Observers and First Order National Weather Service stations, and as such are subject to change. The Period of Record (POR) represents the number of years with a minimum of 50% data completeness. All stations have a Period of Record of at least 30 years. Map: NOAA-NCDC

On 2012 June 28 in the USA, 205 high temperature records were broken and 74 were tied, according to data from the National Oceanic and Atmospheric Administration’s (NOAA) National Climatic Data Center (NCDC).

An intense heat wave broke records in more than a dozen states on Friday, and spawned one of the most damaging severe thunderstorm events seen in years. At least 3 million Americans, mainly in areas from Indiana Southeast to Virginia, were facing the prospect of another day of triple-digit heat heat.

From Atlanta to Baltimore, temperatures approached or exceeded triple digits. Atlanta set a record with a high of 105 degrees, while the temperature hit 99 at Ronald Reagan Washington National Airport just outside the nation’s capital.

There were numerous daily, monthly, and all-time record high temperatures established on Friday. In total, there were 276 record daily high temperatures set or tied on Friday, along with 70 record warm overnight low temperature records. There were also 96 monthly record high temperatures, and 37 all-time high temperature records set or tied.

For the year-to-date, warm temperature records are outpacing cold temperature records by a ration of 7-to-1. Since January 1 there have been 21,402 daily high temperature records set, compared to just 3,338 daily records for cold high temperatures, according to a database maintained by the National Climatic Data Center.

In a long-term trend that demonstrates the effects of a warming climate, daily record-high temperatures have recently been outpacing daily record-lows by an average of 2-to-1, and this imbalance is expected to grow as the climate continues to warm. According to a 2009 study, if the climate were not warming, this ratio would be expected to be even.

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Written by makanaka

July 4, 2012 at 10:47

Land-sea data show this year’s June-August the 2nd warmest ever

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August 2010 Land Surface Temperature. Anomalies in degrees Celsius. Image: August 2010 global analysis of the National Climatic Data Center, National Oceanic and Atmospheric Administration

August 2010 Land Surface Temperature. Anomalies in degrees Celsius. Image: August 2010 global analysis of the National Climatic Data Center, National Oceanic and Atmospheric Administration

The August 2010 global analysis of the National Climatic Data Center, National Oceanic and Atmospheric Administration, is available. The analysis has said that the combined global land and ocean surface temperature during June-August 2010 was 16.2°C (61.3°F), which is 0.64°C (1.15°F) above the 20th century average of 15.6°C (60.1°F).

This has caused the second warmest June-August on record, behind 1998. Warmer-than-average temperatures were present across most of the world’s land surface, with the warmest anomalies observed across eastern Europe, the eastern half of the contiguous US, and parts of eastern Canada, and eastern Asia.

However, cooler-than-average conditions were present across parts of central Russia and southern South America. Overall, the worldwide land-only surface temperature ranked as the warmest on record, surpassing the previous record set in 1998 by 0.08°C (0.14°F). The June-August 2010 worldwide land-only surface temperature was 1.00°C (1.80°F) above the 20th century average of 13.8°C (56.9°F).

August 2010 Blended Land and Sea Surface. Temperature Anomalies in degrees Celsius. Image: August 2010 global analysis of the National Climatic Data Center, National Oceanic and Atmospheric Administration

August 2010 Blended Land and Sea Surface. Temperature Anomalies in degrees Celsius. Image: August 2010 global analysis of the National Climatic Data Center, National Oceanic and Atmospheric Administration

Meanwhile, the worldwide ocean surface temperature was 0.51°C (0.92°F) above the 20th century average of 16.4°C (61.5°F), resulting in the fifth warmest such period on record. The Atlantic, Indian, and western Pacific oceans had warmer-than-average conditions, while the equatorial Pacific Ocean, and along the North and South American Pacific coast, experienced cooler-than-average conditions associated with a developing La Niña.

  • The combined global land and ocean surface temperature for August 2010 was the third warmest on record at 16.2°C (61.2°F), which is 0.60°C (1.08°F) above the 20th century average of 15.6°C (60.1°F). August 1998 is the warmest August on record and 2009 is the second warmest.
  • The August worldwide land surface temperature was 0.90°C (1.62°F) above the 20th century average of 13.8°C (56.9°F)—the second warmest August on record, behind 1998.
  • June–August 2010 Precipitation Anomalies in Millimeters. Image: August 2010 global analysis of the National Climatic Data Center, National Oceanic and Atmospheric Administration

    June–August 2010 Precipitation Anomalies in Millimeters. Image: August 2010 global analysis of the National Climatic Data Center, National Oceanic and Atmospheric Administration

    • The worldwide ocean surface temperature was 0.50°C (0.90°F) above the 20th century average of 16.4°C (61.4°F) and tied with 1997 as the sixth warmest August on record.
  • The combined global land and ocean average surface temperature for June–August 2010 was the second warmest on record, behind 1998, at 16.2°C (61.3°F), which is 0.64°C (1.15°F) above the 20th century average of 15.6°C (60.1°F).
  • The June–August worldwide land surface temperature was 1.00°C (1.80°F) above the 20th century average of 13.8°C (56.9°F)—the warmest June–August on record, surpassing the previous June–August record anomaly of 0.92°C (1.66°F) set in 1998.
  • The worldwide ocean surface temperature was 0.51°C (0.92°F) above the 20th century average of 16.4°C (61.5°F) and was the fifth warmest June–August on record.
  • For January–August 2010, the global combined land and ocean surface temperature of 14.7°C (58.5°F) tied with 1998 as the warmest January–August period on record. This value is 0.67°C (1.21°F) above the 20th century average.

Warmer-than-average temperatures were observed across much of the world’s land surface during August 2010, with the warmest anomalies observed across the eastern half of the contiguous United States, eastern Canada, much of Europe, northwestern Africa, and parts of Asia. However, cooler-than-average temperatures were present across southern South America, central Russia, and most of Australia. When averaging the global land surface temperatures, the worldwide land surface temperature for August 2010 ranked as the second warmest on record, behind 1998. August 2010 temperature was 0.90°C (1.62°F) above the 20th century average of 13.8°C (56.9°F).