Observations of Stratosphere-Troposphere Coupling During Major Solar Eclipses from FORMOSAT-3/COSMIC Constellation

Wang, Kuo Ying; Liu, Chao Han; Lee, L. C.; Braesicke, Peter

doi:10.1007/s11214-011-9829-1

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…The thermal contraction in the troposphere can induce warming in the upper troposphere and lower stratosphere (between 13 and 23 km altitudes), which is dynamically driven. Wang et al (2012) further examined the response of the RO temperature to the solar eclipses on 15 January 2010, 26 January 2009, 1 August 2008, and 22 September 2006 The results suggested that the characteristic stratosphere-troposphere coupling in the RO temperature profiles represent distinctive atmospheric responses to the solar eclipses.…”

Section: Introductionmentioning

confidence: 99%

Temperature response to the June 2020 solar eclipse observed by FORMOSAT-7/COSMIC2 in the Tibet sector

Sun

Chen

et al. 2022

TAO

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This study explores the response of atmospheric temperature to the annular solar eclipse at the summer solstice on 21 June 2020. The radio occultation (RO) technique of the FORMOSAT-7/COSMIC2 (F7/C2) mission observes the temperature in the troposphere and stratosphere. The RO observations show that the temperature decreases significantly (near 4 to 8 °C) between 5 and 8 km altitudes over the Tibetan Plateau area within the 80% obscuration during the eclipse. The tropopause temperature increases by ~ 2 to 5 °C over the same area. By contrast, the tropopause temperature decreases by ~ 4° to 5 °C over the Indian Ocean. The F7/C2 RO technique captured not only the sudden tropospheric cooling and stratospheric warming over Tibet during the eclipse but also the possible response over the Indian Ocean away from the greatest eclipse.

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Section: Introductionmentioning

confidence: 99%

Temperature response to the June 2020 solar eclipse observed by FORMOSAT-7/COSMIC2 in the Tibet sector

Sun

Chen

et al. 2022

TAO

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“…Since the successful launched of the FORMOSAT-3/COSMIC (F3C) satellite on 14 April 2006, the F3C satellite has provide very consistent monitoring of atmospheric temperatures below 40 km altitude for more than 7 years [2][3][4][5][6][7]. In this work use this 7 years of good temperature measurements to construct atmospheric temperature trends from surface to the 40-km altitude, covering troposphere and most of the stratosphere; and from the South Pole to the North Pole.…”

Section: Introductionmentioning

confidence: 99%

Climate Change Detection with the Global GPS Information System

Wang¹

2017

dtetr

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The Intergovernmental Panel on Climate Change (IPCC) has predicted a persistent and wide-spread warming of temperatures close to the surface over the entire globe in the 21 st century, due to the continuously increases in the concentrations of anthropogenic greenhouse gases in the atmosphere. How realistic are the predictions made by the IPCC models, especially over the polar region where the highest increases in temperatures were predicted? Due to the lack of accurate temperature measurements over polar region, the estimate of temperature trends over the polar region remains to be determined. The polar region is also one of the regions where temperature trends remain uncertain. In this work we use profiles of temperature measurements from the FORMOSAT-3/COSMIC (F3C) to determine global temperature trends during the period 2006-2016. The radio occultation (RO) technique gives the F3C a unique and accurate temperature measurement when verified against radiosonde measurements, and when compared with other passive-based temperature measurements using the thermal infra-red emission method. The RO methods use known sources from the radio waves provided by the Global Positioning System (GPS). With a good global coverage by the F3C, we can work out temperature trends on a global scale. Our analysis shows following main results. The distinctive warming over the northern hemisphere polar regions. This warming in the polar region, identified by the F3C observations, confirms the predictions made by the IPCC models. As warming trends in the polar region are the most worried concerns for the global warming, which is likely to lead to progressive reduction in sea ice content, melting glaciers, etc. Our work with the F3C data proves this is terrifying picture is actually happening now. Our analysis also shows distinctive warming over the southern hemisphere polar regions. Again, this proves significant warming during the cold season in the polar region which is consistent with what we have found in the northern hemisphere polar regions. In conclusion, the F3C data demonstrates that significant warming has occurred during the period 2007-2013, and most pronounced warming areas have occurred over the polar region. The pronounced warming over the polar region likely to have worsen effects on sea ice lost, and melting glaciers.

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