The high altitude meteorological parameters include longitude, latitude, atmospheric pressure, temperature, humidity, etc., which are influenced between each parameter, therefore, it is very important to deal with and analyze these parameters. In this paper, we employ MATLAB software, research the basic algorithm of BP neural network, compare resilient BP algorithm, the FletcherReeves algorithm...

Nomenclature T temperature in Celsius RHw relative humidity with respect to water RHi relative humidity with respect to ice l cruising altitude level index Rl t potential persistent contrail formation matrix (contrail matrix) at time t at level l At aircraft position matrix at time t at level l CFI center contrail frequency index lfe level changing constraint b1(l) the number of aircraft which ...

Human longevity is influenced by environment and nutrition. We considered environmental and nutritional factors relating to longevity in Chinese cities. We found higher 85+/65+ distribution ratios, indicating enhanced longevity, in the coastal and southern regions of China. These areas also featured higher humidity, low standard deviation of monthly temperature, higher levels of selenium (Se) d...

House dust from high mountainous areas of Switzerland contains very few house-dust mites. In contrast to lower-lying regions, only very small quantities of house-dust allergen are found at high altitudes.The cause of this phenomenon seems likely to be the climatic conditions in the high mountains of Europe, where cold air leads to extremely low humidity levels indoors. The soil conditions and a...

[1] The Tibetan Plateau has warmed most rapidly during the winter months in the latter half of the 20th century. Changes in surface specific humidity and their effect on changes in downward longwave radiation (DLR) at the surface are examined to evaluate the pattern of seasonal warming at different elevations over the plateau between 1961 and 2000. We use observed seasonal changes in specific h...

Article history: Received 8 August 2012 Received in revised form 20 September 2012 Accepted 9 October 2012 Available online 3 November 2012 Many of the meteorological phenomena occurring at meso-γ require observations sufficiently close together in time and space. The multichannel microwave radiometer (MMWR) provides continuous temperature and humidity profiles. We demonstrate a method for prof...

The present study shows the effects of environmental conditions (atmospheric temperature, pressure and relative humidity) due to altitude changes on performance, fuel consumption emissions in a naturally aspirated diesel engine. Due altitude, atmospheric are altered, mainly air density, associated hydrostatic pressure, temperature profile humidity nitrogen/oxygen ratio, thus modifying engine in...

Odin-SMR is a limb-sounder operating in the 500 GHz region with the capability of performing measurements down to altitudes of about 10 km with relatively low influence of ice clouds. Until now spectra from tropospheric tangent altitudes have been disregarded due to inadequate handling of scattering. A first method to extract upper tropospheric quantities has now been developed, yielding the hu...

the evolution of human blood groups, without doubt, has a history as old as man himself. there are at least three hypotheses about the emergence and mutation of human blood groups. global distribution pattern of blood groups depends on various environmental factors, such as disease, climate, altitude, humidity etc. in this survey, the collection of main blood groups abo and rh, along with some ...