The feasibility of GPS precipitable water vapor （PWV） is discussed based on the comparison of Radiosonde and GPS PWV where the correlation coefficient is 0.94 and the RMS is 4.0 mm. PWV change in the Chinese mainlan...The feasibility of GPS precipitable water vapor （PWV） is discussed based on the comparison of Radiosonde and GPS PWV where the correlation coefficient is 0.94 and the RMS is 4.0 mm. PWV change in the Chinese mainland in 2004 is graphed with the gridding method of splines in tension, according to the GPS data of the crust monitor observation network in China, combined with relevant meteorology information. According to the distribution of the annual amount of rainfall in the country, it can be concluded that the total trend of the PWV is diminishing from the south-east coastland to the north-west inland. The PWV reaches its maximum during July and August, and the minimum is reached during January and February. According to the PWV, from high to low, all districts can be ranked as south-east coastland, the inland and the tableland.展开更多
This paper deals with the recent advances in global positioning system(GPS). First of all,the principal error sources of GPS observations are analysed. Then the scientific applications of space based GPS are described...This paper deals with the recent advances in global positioning system(GPS). First of all,the principal error sources of GPS observations are analysed. Then the scientific applications of space based GPS are described,of which the TOPEX and Microlape missions are excellent examples of great success. With regard to the application of GPS to meteorology (GPS/MET),detailed description is given to earth based GPS/MET and space based GPS/MET,they stand at the front of recent advances in GPS.展开更多
This paper deals with the recent advances in global positioning system(GPS).First of all,the principal error sources of GPS observations are analysed.Then the scien tific applications of space based GPS are described,...This paper deals with the recent advances in global positioning system(GPS).First of all,the principal error sources of GPS observations are analysed.Then the scien tific applications of space based GPS are described,of which the TOPEX and Microlape missons are excellent examples ofgreat success.With regard to the application of GPS to meterorology(GPS/MET),detailed description is given to earth based GPS/MET and space based GPS/MET,they stand at the front of recent advances in GPS.展开更多
This paper deals with the recent advances in global positioning system(GPS). First of all,the principal error sources of GPS observations are analysed. Then the scientific applications of space based GPS are described...This paper deals with the recent advances in global positioning system(GPS). First of all,the principal error sources of GPS observations are analysed. Then the scientific applications of space based GPS are described,of which the TOPEX and Microlape missons are excellent examples of great success. With regard to the application of GPS to meteorology (GPS/MET),detailed description is given to earth based GPS/MET and space based GPS/MET,they stand at the front of recent advances in GPS.展开更多
This paper deals with the recent advances in global positioning system(GPS). First of all,the principal error sources of GPS observations are analysed. Then the scientific applications of space based GPS are described...This paper deals with the recent advances in global positioning system(GPS). First of all,the principal error sources of GPS observations are analysed. Then the scientific applications of space based GPS are described,of which the TOPEX and Microlape missons are excellent examples of great success. With regard to the application of GPS to meterorology (GPS/MET),detailed description is given to earth based GPS/MET and space based GPS/MET,they stand at the front of recent advances in GPS.展开更多
文摘The feasibility of GPS precipitable water vapor （PWV） is discussed based on the comparison of Radiosonde and GPS PWV where the correlation coefficient is 0.94 and the RMS is 4.0 mm. PWV change in the Chinese mainland in 2004 is graphed with the gridding method of splines in tension, according to the GPS data of the crust monitor observation network in China, combined with relevant meteorology information. According to the distribution of the annual amount of rainfall in the country, it can be concluded that the total trend of the PWV is diminishing from the south-east coastland to the north-west inland. The PWV reaches its maximum during July and August, and the minimum is reached during January and February. According to the PWV, from high to low, all districts can be ranked as south-east coastland, the inland and the tableland.
文摘This paper deals with the recent advances in global positioning system(GPS). First of all,the principal error sources of GPS observations are analysed. Then the scientific applications of space based GPS are described,of which the TOPEX and Microlape missions are excellent examples of great success. With regard to the application of GPS to meteorology (GPS/MET),detailed description is given to earth based GPS/MET and space based GPS/MET,they stand at the front of recent advances in GPS.
文摘This paper deals with the recent advances in global positioning system(GPS).First of all,the principal error sources of GPS observations are analysed.Then the scien tific applications of space based GPS are described,of which the TOPEX and Microlape missons are excellent examples ofgreat success.With regard to the application of GPS to meterorology(GPS/MET),detailed description is given to earth based GPS/MET and space based GPS/MET,they stand at the front of recent advances in GPS.
文摘This paper deals with the recent advances in global positioning system(GPS). First of all,the principal error sources of GPS observations are analysed. Then the scientific applications of space based GPS are described,of which the TOPEX and Microlape missons are excellent examples of great success. With regard to the application of GPS to meteorology (GPS/MET),detailed description is given to earth based GPS/MET and space based GPS/MET,they stand at the front of recent advances in GPS.
文摘This paper deals with the recent advances in global positioning system(GPS). First of all,the principal error sources of GPS observations are analysed. Then the scientific applications of space based GPS are described,of which the TOPEX and Microlape missons are excellent examples of great success. With regard to the application of GPS to meterorology (GPS/MET),detailed description is given to earth based GPS/MET and space based GPS/MET,they stand at the front of recent advances in GPS.
