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  2. Global surface temperature - Wikipedia

    en.wikipedia.org/wiki/Global_surface_temperature

    The current annual GMST is about 15 °C (59 °F), [6] though monthly temperatures can vary almost 2 °C (4 °F) above or below this figure. [7] The global average and combined land and ocean surface temperature show a warming of 1.09 °C (range: 0.95 to 1.20 °C) from 1850–1900 to 2011–2020, based on multiple independently produced datasets.

  3. File:20210502 Warming stripes comparison of Global Mean ...

    en.wikipedia.org/wiki/File:20210502_Warming...

    Warming stripes bar chart — Accepts a single dataset and creates a conventional bar chart whose individual bars/columns are coloured according to Dr. Hawkins' warming stripes colour scheme. Alternate option: choose one colour for ascending bars and another colour for descending bars. (updated 28 August 2023) Line charts — Accepts up to six ...

  4. Sidereal time - Wikipedia

    en.wikipedia.org/wiki/Sidereal_time

    For this reason, to simplify the description of Earth's orientation in astronomy and geodesy, it was conventional to chart the positions of the stars in the sky according to right ascension and declination, which are based on a frame of reference that follows Earth's precession, and to keep track of Earth's rotation, through sidereal time ...

  5. Warming stripes - Wikipedia

    en.wikipedia.org/wiki/Warming_stripes

    This composite of a conventional line chart superimposed on a warming stripe graphic illustrates year-by-year correlation of data points and coloured stripes. [ 21 ] "I wanted to communicate temperature changes in a way that was simple and intuitive, removing all the distractions of standard climate graphics so that the long-term trends and ...

  6. UAH satellite temperature dataset - Wikipedia

    en.wikipedia.org/wiki/UAH_satellite_temperature...

    The UAH satellite temperature dataset, developed at the University of Alabama in Huntsville, infers the temperature of various atmospheric layers from satellite measurements of the oxygen radiance in the microwave band, using Microwave Sounding Unit temperature measurements.

  7. Hour angle - Wikipedia

    en.wikipedia.org/wiki/Hour_angle

    As seen from above the Earth's north pole, a star's local hour angle (LHA) for an observer near New York (red dot).Also depicted are the star's right ascension and Greenwich hour angle (GHA), the local mean sidereal time (LMST) and Greenwich mean sidereal time (GMST).

  8. Equation of time - Wikipedia

    en.wikipedia.org/wiki/Equation_of_time

    Here GMST = GAST − eqeq, is the Greenwich mean sidereal time (the angle between the mean vernal equinox and the mean Sun in the plane of the equator). Therefore, GMST is an approximation to GAST (and E is an approximation to EOT); eqeq is called the equation of the equinoxes and is due to the wobbling, or nutation of the Earth's axis of ...

  9. Global warming hiatus - Wikipedia

    en.wikipedia.org/wiki/Global_warming_hiatus

    With deliberately cherry picking appropriate time periods, here 1998-2012, a "pause" can be created, even when there is an ongoing warming trend. Temperature data from various scientific organizations worldwide show a high correlation regarding the progress and extent of global warming.