Physics
Scientific paper
Mar 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3206815v&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 6, CiteID L06815
Physics
14
Atmospheric Processes: Boundary Layer Processes, Atmospheric Processes: Tropical Meteorology, Atmospheric Processes: Remote Sensing, Atmospheric Processes: Data Assimilation
Scientific paper
A simple approach to derive the Planetary Boundary Layer (PBL) top altitude from CHAMP (CHAllenging Minisatellite Payload) radio occultation (RO) data is presented. Our RO processing cuts off at an altitude, typically <=4 km, below which the GPS signals are affected by tracking errors. This lowest processed altitude (LPA) is assumed to coincide with the PBL top. We average LPAs for the years 2001 to 2004 over 5 Degree latitude longitude boxes and compare them to ECMWF analysis data. The ECMWF PBL top was calculated from the relative humidity gradient with respect to altitude. Agreement between the data sets is good in terms of mean PBL height, especially over sea. The CHAMP data shows the major features of PBL height with a realistic transition from stratocumulus regions to shallow and deep cumulus areas. CHAMP also shows a substantial amount of PBL height variability that may prove useful to study PBL dynamics.
Buehler Stefan A.
Teixeira João
von Engeln Axel
Wickert Jens
No associations
LandOfFree
Using CHAMP radio occultation data to determine the top altitude of the Planetary Boundary Layer 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 Using CHAMP radio occultation data to determine the top altitude of the Planetary Boundary Layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using CHAMP radio occultation data to determine the top altitude of the Planetary Boundary Layer will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1218193