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Global Warming of the Atmosphere in Radiative-Convective Equilibrium
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ABSTRACT
Many studies of global warming have commonly reported positive warming feedback by water vapor, exhibiting relative humidity in the atmosphere unchanged for different warming conditions. However, this is not self-evident, since water vapor content in the atmosphere may be significantly affected by atmospheric convections, such as cumulus convection, which involve strong vertical motions of air. To find an explanation, global warming experiments were run in this study that incl...
Related newspaper, magazine, and journal articles from HighBeam Research
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A Distribution Law for Free-Tropospheric Relative Humidity
Journal of Climate
; ABSTRACT The probability distribution of local relative humidity R in the free troposphere is explored by comparing a simple theoretical calculation with observations from the global positioning system (GPS) and the Microwave Limb Sounder (MLS). The calculation is based on a parcel of air that
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Water Vapor Feedback in the Tropical Upper Troposphere: Model Results and Observations
Journal of Climate
; ABSTRACT The sensitivity of water vapor in the tropical upper troposphere to changes in surface temperature is examined using a single-column, radiative-convective model that includes couplings between the moistening effects of convective detrainment, the drying effects from clear-air subsidence,
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The General Circulation and Robust Relative Humidity
Journal of Climate
; ABSTRACT The sensitivity of free-tropospheric relative humidity to cloud microphysics and dynamics is explored using a simple 2D humidity model and various configurations of the National Center for Atmospheric Research (NCAR) Community Atmosphere Model version 3 (CAM3) atmospheric general
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Tropospheric water vapor and climate sensitivity
Journal of the Atmospheric Sciences
; ABSTRACT Estimates are made of the effect of changes in tropospheric water vapor on the climate sensitivity to doubled carbon dioxide (CO2), using a coarse resolution atmospheric general circulation model coupled to a slab mixed layer ocean. The sensitivity of the model to doubled CO2 is found as
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Multimodel Analysis of the Water Vapor Feedback in the Tropical Upper Troposphere
Journal of Climate
; ABSTRACT Relationships between the mean humidity in the tropical upper troposphere and tropical sea surface temperatures in 17 coupled ocean-atmosphere global climate models were investigated. This analysis builds on a prior study of humidity and surface temperature measurements that suggested an
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Synergetic Use of GPS Water Vapor and Meteosat Images for Synoptic Weather Forecasting
Journal of Applied Meteorology
; ABSTRACT The use of integrated water vapor (IWV) measurements from a ground-based global positioning system (GPS) for nowcasting is described for a cold front that passed the Netherlands during 16 and 17 May 2000. Meteosat water vapor (WV) and infrared (IR) channel measurements are incorporated to
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Dry Bias in Satellite-Derived Clear-Sky Water Vapor and Its Contribution to Longwave Cloud Radiative Forcing
Journal of Climate
; ABSTRACT In this paper, the amount of satellite-derived longwave cloud radiative forcing (CRF) that is due to an increase in upper-tropospheric water vapor associated with the evolution from clear-sky to the observed all-sky conditions is assessed. This is important because the satellite-derived
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Water vapor, surface temperature, and the greenhouse effect--A statistical analysis of tropical-mean data
Journal of Climate
; ABSTRACT Water vapor feedback is one of the important factors that determine the response of the atmosphere to surface warming. To take into account the compensating drying effects in downdraft regions, averaging over the whole Tropics is necessary. However, this operation drastically reduces the
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Continuous water vapor profiles from operational ground-based active and passive remote sensors
Bulletin of the American Meteorological Society
; ABSTRACT The Atmospheric Radiation Measurement program's Southern Great Plains Cloud and Radiation Testbed site central facility near Lamont, Oklahoma, offers unique operational water vapor profiling capabilities, including active and passive remote sensors as well as traditional in situ radiosonde
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A Comparison of the Water Vapor Transport Through Fabrics under Conventional and Subzero Climate
Textile Research Journal
; Abstract Although much study has been dedicated to heat and water vapor transport through fabrics, there remains a great lack of understanding on water vapor transport through fabrics under subzero climate, particularly in terms of the effect of condensation on water vapor transport. In this paper,
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