Processing Strategy for Near Real Time GPS Precipitable Water Vapor Retrieval

Details Processing Strategy for Near Real Time GPS Precipitable Water Vapor Retrieval Processing Strategy for Near Real Time GPS Precipitable Water Vapor Retrieval

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jass...24..275b&link_type=abstract

Journal of Astronomy and Space Sciences. Vol. 24, no. 4, 275-284

Astronomy and Astrophysics

Astronomy

1

Gps, Pwv Retrieval, Near Real Time, Sliding Window

Scientific paper

For the application to the numerical weather prediction (NWP) in active service, it is necessary to ensure that the GPS precipitable water vapor (PWV) data has less than one hour latency and three millimeter accuracy. The comparison and the verification between the daily products from GPS measurement by using the IGS final ephemeris and the conventional meteorological observation has been done in domestic researches. In case of using IGS final ephemeris, GPS measurements can be only post processed in daily basis in three weeks after the observation. Thus this method cannot be applied to any near real-time data processing. In this paper, a GPS data processing method to produce the PWV output with three mm accuracy and one hour latency for the data assimilation in NWP has been planned. For our new data processing strategy, IGS ultra-rapid ephemeris and the sliding window technique are applied. And the results from the new strategy has been verified. The GPS measurements during the first 10 days of January, April, July and October were processed. The results from the observations at Sokcho, where the GPS and radiosonde were collocated, were compared. As the results, a data processing strategy with 0.8 mm of mean bias and 1.7 mm of standard deviation in three minutes forty-three seconds has been established.

Affiliated with

Also associated with

No associations

Rating

Processing Strategy for Near Real Time GPS Precipitable Water Vapor Retrieval does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Processing Strategy for Near Real Time GPS Precipitable Water Vapor Retrieval, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processing Strategy for Near Real Time GPS Precipitable Water Vapor Retrieval will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1762260