Investigation and Assessment of Meteorological Detection Environment in Gansu Province and Protection Measures
YANG Zhenxin;SUN Lei;NIU Runhe;WANG Wei;SONG Yuan;Linxia Meteorological Bureau of Gansu Province;Gansu Province Meteorological Bureau;
With the rapid development of social economy,the meteorological environment has been affected severely and damaged,which has been a threat to the accuracy and representation of meteorological observation data. According to the survey assessment method of detection environment of the national surface meteorological observation stations,the paper analyzed the current situation of facilities,change trend and destruction causes influencing the detection environment of meteorological station in Gansu Province in 2013.The results show that the proportion of excellent,good,poor detection environments in meteorological stations of Gansu Province were12. 3%,42. 1%,8. 6%,respectively,and the poor appeared in general stations,while the detection environment in basis stations didn't reach the excellent,which indicated that the detection environment in reference stations was better generally. The scores of surrounding buildings and plants,sunrise elevation,sunset elevation were low,and the score of each assessment item in reference stations was relatively high. The average shielding rate of excessive obstacles was 53. 1% in the whole province,and the shielding came from the outside of meteorological stations. The shielding of obstacles in reference stations was smallest,while that in basis stations was largest. The migration rate of meteorological stations was 67. 9%,and the proportion of migration in basis stations was highest since they were built,and more than 90% stations migrated since 2008 owe to the urban planning,construction and environment destruction. The containment of this situation needs to establish the classified protection mechanism of detection environment,and make the construction projects possibly affecting on detection environment into parallel approval procedures of the local government relevant departments. Moreover,the national assessment and management system for detection environment of meteorological stations should be established,so as to achieve the dynamic assessment and automatic management of detection environment.
【CateGory Index】： P41