Analysis on Characteristics of Radiosonde Bias Using GPS Precipitable Water Vapor

Analysis on Characteristics of Radiosonde Bias Using GPS Precipitable Water Vapor

As an observation instrument of the longest record of tropospheric water vapor, radiosonde data provide upper-air pressure (geopotential height), temperature, humidity and wind. However, the data have some well-known elements related to inaccuracy. In this article, radiosonde precipitable water va...

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Bibliographic Details
Main Authors: Chang-Geun Park, Jeongho Baek, Jungho Cho
Format: Article
Language:English
Published: Korean Space Science Society (KSSS) 2010-09-01
Series:Journal of Astronomy and Space Sciences
Subjects:
radiosonde data provide upper-air pressure (geopotential height)
temperature
humidity and wind. However
the data have some well-known elements related to inaccuracy. In this article
radiosonde precipitable water vapor (PWV) at Sokcho observatory was compared with global positioning system (GPS) PWV during each summertime of year 2007 and 2008 and the biases were calculated. As a result
the mean bias showed negative values regardless of the rainfall occurrence. In addition
on the basis of GPS PWV
the maximum root mean square error (RMSE) was 5.67 mm over the radiosonde PWV.
GPS
precipitable water vapor
radiosonde
bias
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2010/v27n3/OJOOBS_2010_v27n3_213.pdf

Internet

http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2010/v27n3/OJOOBS_2010_v27n3_213.pdf

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