Archivo:Satellite Temperatures.png

Tamaño de esta previsualización: 800 × 530 píxeles. Otras resoluciones: 320 × 212 píxeles · 640 × 424 píxeles · 1024 × 678 píxeles · 1280 × 848 píxeles · 2400 × 1590 píxeles.

Ver la imagen en su resolución original ‎(2400 × 1590 píxeles; tamaño de archivo: 297 kB; tipo MIME: image/png)

DescripciónSatellite Temperatures.png	The last 25 years of surface measurements with various averages and a comparison to El Niño and volcanic forcing. The surface temperature record extended back to 1880. (UAH 2003; data set tltglhmam version 5.2 with 2009 updates) and Schabel et al. (RSS 2002; data set tlt_land_and_ocean with 2009 updates). These two satellite records reflect two different ways of interpreting the same set of microwave sounder measurements and are not independent records. Each record is plotted as the monthly average and straight lines are fit through each data set from January 1982 to December 2009. The slope of these lines are 0.187°C/decade, 0.163°C/decade, and 0.239°C/decade for the surface, UAH, and RSS respectively. The 5.2 version of Christy et al.'s satellite temperature record contains a significant correction over previous versions. In summer 2005, Mears and Wentz (2005) discovered that the UAH processing algorithms were incorrectly adjusting for diurnal variations, especially at low latitude. This correction raised the trend line 0.035°C/decade, and in so doing brought it into much better agreement with the ground based records and with independent satellite based analysis (e.g. Fu et al. 2004). The discovery of this error also explains why their satellite based temperature trends had disagreed most prominently in the tropics. Within measurement error, all of these records paint a similar picture of temperature change and global warming. However, climate models predict carbon dioxide based greenhouse warming should result in lower atmosphere warming roughly 1.3 times higher than the surface warming. This prediction is consistent with the RSS vs. surface comparison, though by contrast the UAH vs. surface comparison suggests a troposphere warming by slightly less than the surface of the Earth. Note: In the above figure, there is still a significant discrepancy between the very earliest satellite measurements and the ground based measurements at that time. For this reason only the interval 1982-2005 was used in calculating each trend. Including the earliest years leads to a wider dispersion , with trends of 0.170°C/decade, 0.116°C/decade, and 0.192°C/decade for the surface, UAH, and RSS data respectively. The origin of this discrepancy is unclear. This figure was prepared by Robert A. Rohde from publicly available data and is incorporated into the Global Warming Art project. Jones, P.D. and Moberg, A. (2003). "Hemispheric and large-scale surface air temperature variations: An extensive revision and an update to 2001". Journal of Climate 16: 206-223. Christy, J.R., R.W. Spencer, W.B. Norris, W.D. Braswell and D.E. Parker (2003). "Error estimates of version 5.0 of MSU/AMSU bulk atmospheric temperatures". J. Atmos. Oceanic Technol. 20: 613-629. Fu, Q., Johanson, C. M., Warren, S. G. & Seidel, D. J. (2004). "Contribution of stratospheric cooling to satellite-inferred tropospheric temperature trends". Nature 429: 55−58. Mears, Carl A. and Frank J. Wentz (2005). "The Effect of Diurnal Correction on Satellite-Derived Lower Tropospheric Temperature". Science Express: published online 11 August 2005. Matthias C. Schabel, Carl A. Mears, Frank J. Wentz (2002). "Stable Long-Term Retrieval of Tropospheric Temperature Time Series from the Microwave Sounding Unit". Proceedings of the International Geophysics and Remote Sensing Symposium III: 1845-1847.
Fuente	http://www.cru.uea.ac.uk/cru/data/temperature/
Autor	Robert A. Rohde

Resumen ==

Image from Global Warming Art

This image is an original work created for Global Warming Art. Please refer to the image description page for more information.

Se autoriza la copia, distribución y modificación de este documento bajo los términos de la licencia de documentación libre GNU, versión 1.2 o cualquier otra que posteriormente publique la Fundación para el Software Libre; sin secciones invariables, textos de portada, ni textos de contraportada. Se incluye una copia de la dicha licencia en la sección titulada Licencia de Documentación Libre GNU.

	Este archivo se encuentra bajo la licencia Creative Commons Genérica de Atribución/Compartir-Igual 3.0.

	Eres libre: de compartir – de copiar, distribuir y transmitir el trabajo de remezclar – de adaptar el trabajo Bajo las siguientes condiciones: atribución – Debes otorgar el crédito correspondiente, proporcionar un enlace a la licencia e indicar si realizaste algún cambio. Puedes hacerlo de cualquier manera razonable pero no de manera que sugiera que el licenciante te respalda a ti o al uso que hagas del trabajo. compartir igual – En caso de mezclar, transformar o modificar este trabajo, deberás distribuir el trabajo resultante bajo la misma licencia o una compatible como el original.
	Esta etiqueta de licencia fue agregada a este archivo como parte de la actualización de la licencia GFDL.CC BY-SA 3.0truetrue