Due to the complex erection environment of various types of automatic stations,the provincial meteorological inspection department is difficult to carry out this work in terms of equipment or staffing. For this reason...Due to the complex erection environment of various types of automatic stations,the provincial meteorological inspection department is difficult to carry out this work in terms of equipment or staffing. For this reason,a portable temperature sensor calibrator was developed,and it uses semiconductor refrigeration technology to increase and decrease temperature quickly. It uses an intelligent PID temperature controller as a control device to provide a stable temperature environment; it is small,light and easy to operate,and it provides technical support for the calibration of temperature sensors. The structure and working principle of this equipment were analyzed,and its performance was tested. All the indicators could meet the requirements of field calibration. The calibrator will provide a strong guarantee for the reliability of temperature data obtained at automatic meteorological stations.展开更多
It is very important to analyze and evaluate the benefi ts of meteorological services for policy decision-making and taking precautions against meteorological disasters.In this study,a model for evaluating the benef i...It is very important to analyze and evaluate the benefi ts of meteorological services for policy decision-making and taking precautions against meteorological disasters.In this study,a model for evaluating the benef its of meteorological services for industries is constructed,with the combining method of dose-response and contingency assessment,and also absorbing other countries' experience.According to this model,and referring to the practical value of the contribution of meteorological services to typical enterprises,experts calculated the benef its of meteo-rological services for every industry.By applying this model,and taking the evaluation framework of "to determine which industries are meteorology-sensitive" - "to evaluate the benefi ts of meteorological services" - "to get the total benef its of meteorological service",evaluation and analysis on the total benef its of meteorological services was done with case study.According to this study,the annual mean benef its of meteorological services are known as no less than 279.3 billion yuan(cost excluded) in present national economical environment.展开更多
文摘Due to the complex erection environment of various types of automatic stations,the provincial meteorological inspection department is difficult to carry out this work in terms of equipment or staffing. For this reason,a portable temperature sensor calibrator was developed,and it uses semiconductor refrigeration technology to increase and decrease temperature quickly. It uses an intelligent PID temperature controller as a control device to provide a stable temperature environment; it is small,light and easy to operate,and it provides technical support for the calibration of temperature sensors. The structure and working principle of this equipment were analyzed,and its performance was tested. All the indicators could meet the requirements of field calibration. The calibrator will provide a strong guarantee for the reliability of temperature data obtained at automatic meteorological stations.
文摘It is very important to analyze and evaluate the benefi ts of meteorological services for policy decision-making and taking precautions against meteorological disasters.In this study,a model for evaluating the benef its of meteorological services for industries is constructed,with the combining method of dose-response and contingency assessment,and also absorbing other countries' experience.According to this model,and referring to the practical value of the contribution of meteorological services to typical enterprises,experts calculated the benef its of meteo-rological services for every industry.By applying this model,and taking the evaluation framework of "to determine which industries are meteorology-sensitive" - "to evaluate the benefi ts of meteorological services" - "to get the total benef its of meteorological service",evaluation and analysis on the total benef its of meteorological services was done with case study.According to this study,the annual mean benef its of meteorological services are known as no less than 279.3 billion yuan(cost excluded) in present national economical environment.
