Results 221 to 230 of about 8,094,665 (258)

A New Weighted Mean Temperature Model in China

Advances in Space Research, 2018
Abstract The Global Positioning System (GPS) has been applied in meteorology to monitor the change of Precipitable Water Vapor (PWV) in atmosphere, transformed from Zenith Wet Delay (ZWD). A key factor in converting the ZWD into the PWV is the weighted mean temperature ( T m ), which has a direct impact on the accuracy of the ...
Jinghong Liu, Yibin Yao, Jizhang Sang
exaly   +2 more sources

Calculation method of mean skin temperature weighted by temperature sensitivity of various parts of human body

Journal of Thermal Biology, 2021
Skin temperature is an important physiological parameter, and its calculation methods are varied, and the results are different. At present, the area weighting method is mostly used to calculate the mean skin temperature. However, the skin of various parts of the human body has different degrees of sensitivity to temperature changes.
Guodan, Liu, Shuwei, Liang, Songtao, Hu
openaire   +2 more sources

Establishment of Atmospheric Weighted Mean Temperature Model in the Polar Regions

Advances in Space Research, 2020
Abstract Due to the special geographical location and extreme climate environment, the polar regions (Antarctic and Arctic) have an important impact on global climate change. Atmospheric weighted mean temperature (Tm) is a crucial parameter in the retrieval of precipitable water vapor (PWV) from the zenith wet delay (ZWD) of ground-based Global ...
Tianhe Xu
exaly   +2 more sources

Mean weighted temperature for PWV estimation

2015 IEEE 4th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2015
In this paper, the effects of mean weighted temperature (Tm) for the calculation of perceptible water vapor (PWV) from GPS data is analyzed. Tm for Singapore is estimated using surface temperature information (Ts). To analyze the effect of Tm for calculating PWV, PWV for four consecutive months are calculated using the estimated equation and compared ...
Shilpa Manandhar, Yee Hui Lee, Stefan Winkler   +2 more
openaire   +1 more source

A Further Contribution to the Seasonal Variation of Weighted Mean Temperature

Advances in Space Research, 2017
Abstract The weighted mean temperature T m is a variable parameter in the Global Navigation Satellite System (GNSS) meteorology and the Askne-Nordius zenith wet delay (ZWD) model. Some parameters about the T m seasonal variation (e.g. the annual mean value, the annual range, the annual and semi-annual amplitudes, and the long-term trend) were ...
Maohua Ding
exaly   +2 more sources

Determination of Weighted Mean Tropospheric Temperature Using Ground Meteorological Measurements

Geo-Spatial Information Science, 2001
The weighted mean tropospheric temperature is a critical parameter in the conversion of wet zenith delay to precipitable water vapor in GPS Meteorology. This parameter can not be calculated from the radiosonde data in real time through the conventional methods.
Yongqi Chen, Jingnan Liu
exaly   +2 more sources

A new weighting system for mean surface temperature of the human body

Journal of Applied Physiology, 1964
On the basis of an analysis of the skin temperature data on three resting human subjects from 112 experiments, a simple weighting system for computing the mean skin temperature from observations on four areas of the body, namely, chest, arms, thighs, and legs, has been proposed.
openaire   +2 more sources

A Study of the Atmospheric Weighting Mean Temperature in Northwest Plateau of China

Applied Mechanics and Materials, 2011
The data from 11 meteorological radiosonde stations in 5 provinces including Shanxi, Shaanxi, Ningxia, Inner Mongolia and Hebei are divided into 9 different data collections which are used to deduce the linear regression models of atmospheric weighting mean temperature (Tm) for Ground-based GPS precipitable water vapor (PWV) retrieval.
Jing Jiang Zhang, Yan Li Chu, Ji Qin Zhong   +2 more
openaire   +1 more source

Weighted mean temperature model for extra tropical region of India

Journal of Atmospheric and Solar-Terrestrial Physics, 2014
Abstract The Global Positioning System (GPS) estimates Precipitable Water Vapor (PWV) from Zenith Wet Delay (ZWD) using a key parameter called water vapor weighted mean temperature ( T m ) of the atmosphere. However, T m must be tuned to the specific area and location.
D. Singh, J.K. Ghosh, D. Kashyap
openaire   +1 more source