Search results
Results from the WOW.Com Content Network
Global surface temperature (GST) is the average temperature of Earth's surface. More precisely, it is the weighted average of the temperatures over the ocean and land. The former is also called sea surface temperature and the latter is called surface air temperature. Temperature data comes mainly from weather stations and satellites.
The temperature on land rose by 1.59 °C while over the ocean it rose by 0.88 °C. [3] In 2020 the temperature was 1.2 °C above the pre-industrial era. [4] In September 2023 the temperature was 1.75 °C above pre-industrial level and during the entire year of 2023 is expected to be 1.4 °C above it. [5]
Oxygen-18 quantity changes (δ 18 O) in ice layers represent changes in average ocean surface temperature. Water molecules containing the heavier O-18 evaporate at a higher temperature than water molecules containing the normal Oxygen-16 isotope. The ratio of O-18 to O-16 will be higher as temperature increases but it also depends on factors ...
Juckes et al. 2007 "Millennial temperature reconstruction intercomparison and evaluation". Loehle & McCulloch (2008) "Correction to: A 2000-year global temperature reconstruction based on non-tree ring proxies". Mann et al. 2008 "Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millennia".
The initial version of Global Historical Climatology Network was developed in the summer of 1992. [3] This first version, known as Version 1 was a collaboration between research stations and data sets alike to the World Weather Records program and the World Monthly Surface Station Climatology from the National Center for Atmospheric Research. [4]
— Data uses 1901-2000 base period (=0°C in the chart). Actual data for this chart is provided in expandable text, below. FYI: Data, adjusted for a different base period, is used in the top half of uploader RCraig09's other image file: File: 20190727 COMPARE warming stripes - Global vs Caribbean 1910-2018 (ref 1910-2000).png
Temperature Town/Location Date Record Info Australia: 37.8 °C (100.0 °F) Marble Bar, Western Australia: 31 October 1923 to 7 April 1924 (160 days) Most consecutive days above 37.8 °C (100 °F) [188] - Iran: 70.7 °C (159.3 °F) Lut Desert: 2005: Highest natural ground surface temperature 70.7 °C (159.3 °F) [189] [190] - USA ( California)
The resulting temperature data series actually used to make this graph, and their five-interval (100-year) moving average data series, are provided in the expandable text below. The same dataset, averaged within each millennium to form series of 800 data points, was used to form 800,000-year chart in the top panel of File:800,000-, 2,000-, 139 ...