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Deserts may seem lifeless and inert, but they are very much alive. Sand dunes, in particular, grow and move – and according to a decadeslong research project, they also breathe humid air.
THE FOUNDATION GPS WATER VAPOR INVERSION AND ITS APPLICATION RESEARCH
Global Positioning System(GPS), Tropospheric delay, Wet delay, Inversion of water vapor, Precipitable water vapor
2018/5/15
Using GPS technology to retrieve atmospheric water vapor is a new water vapor detection method, which can effectively compensate for the shortcomings of conventional water vapor detection methods, to ...
Assessment of water vapor content from MIVIS TIR data
radiative transfer code water vapor split windows MIVIS atmospheric correction
2015/9/7
The main objective of land remotely sensed images is to derive biological, chemical and physical parameters by inverting sample sets of spectral data. For the above aim hyperspectral scanners on airbo...
A survey of 557 GHz water vapor emission in the NGC 1333 molecular cloud
NGC 1333 jets and outfl ows
2014/12/24
Using NASA's Submillimeter Wave Astronomy Satellite (SWAS), we have examined the production of water in quiescent and shocked molecular gas through a survey of the 556.936 GHz 110-101 transition of or...
We report the results of a large-area study of water vapor along the Orion Molecular Cloud ridge, the purpose of which was to determine the depth-dependent distribution of gas-phase water in dense mol...
Although liquid water covers a majority of Earth's surface, scientists are still searching for planets outside our solar system that contain water. California Institute of Technology researchers have ...
Image Transfer through Two Sequential Four-Wave Mixing in a Hot Atomic Vapor
Image Transfer Two Sequential Four-Wave Hot Atomic Vapor Optics
2012/5/31
Efficient wavelength conversion of images has many potential applications in optical communication, sensing, imaging, and quantum information fields. In this work, we report on here the first demonstr...
Fabrication and characterization of an electrically contacted vapor cell
Fabrication and characterization electrically contacted vapor cell Atomic Physics
2012/4/20
We demonstrate the use of electrically contacted vapor cells to switch the transmission of a probe laser. The excitation scheme makes use of electromagnetically induced transparency involving a Rydber...
Vapor-Solid Growth of Monocrystalline Zinc Nanoplates
Zinc Nanoplates Thermal evaporation Anisotropic growth
2011/12/15
Zinc nanoplates of two kinds of basal surfaces were grown using a non-catalytic and template-free thermal evaporation. High resolution tunneling electron microscopy and selected area electron diffract...
Controllable ultra-broadband slow light in a warm Rubidium vapor
Controllable ultra-broadband slow light Rubidium vapor Optics
2011/8/18
Abstract: We study ultra-broadband slow light in a warm Rubidium vapor cell. By working between the D1 and D2 transitions, we find a several-nm window centered at 788.4 nm in which the group index is ...
Polarization squeezing of light by single passage through an atomic vapor
Polarization squeezing single passage atomic vapor
2011/8/17
Abstract: We have studied relative-intensity fluctuations for a variable set of orthogonal elliptic polarization components of a linearly polarized laser beam traversing a resonant $^{87}$Rb vapor cel...
Microcalorimetric investigation of water vapor adsorption on silica gel
Microcalorimetry Diffusivity Silica gel–water pair Heat of adsorption
2011/11/10
Water vapor adsorption on silica gel was investigated using Tian–Calvet-type microcalorimetry. Differential heat of adsorption data was obtained. The setup of microcalorimetry was used volumetric syst...
Relating tropical ocean clouds to moist processes using water vapor isotope measurements
tropical ocean clouds moist water vapor isotope measurements
2011/2/24
We examine the co-variations of tropospheric water vapor, its isotopic composition and cloud types and relate these distributions to tropospheric mixing and distillation models using satellite observa...
Vapor phase alkylation of toluene using various alcohols over H3PO4/MCM-41 catalyst: influence of reaction parameters on selectivity and conversion
Alkylation toluene mesoporous MCM-41 vapor phase H3PO4
2010/12/20
A mesoporous MCM-41 molecular sieve material with a molar ratio of SiO2/Al2O3 = 70 and loaded with H3PO4 was used as a catalyst for the alkylation of toluene, using various alcohols, namely methanol, ...
The vapor pressures and activities of dicarboxylic acids reconsidered: the impact of the physical state of the aerosol
dicarboxylic acids the physical state of the aerosol
2010/12/28
We present vapor pressure data of the C2 to C5 dicarboxylic acids deduced from measured evaporation rates of single levitated particles as both, aqueous droplets and solid crystals. The data of aqueou...