Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Kent B. Lauritsen"'
Random uncertainties and vertical error correlations are estimated for three independent data sets. The three collocated data sets are (1) refractivity profiles of radio occultation measurements retrieved from the Metop-A and B and COSMIC-1 missions,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ee249db13062db9af153936c51b46cc
https://amt.copernicus.org/articles/15/6243/2022/
https://amt.copernicus.org/articles/15/6243/2022/
Many studies have by now demonstrated the accuracy of GNSS Radio Occultation (RO) data, and their usefulness as a stable climate reference. Homogeneity of the data records are obtained by reprocessing of the data using uniform processing software thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fde78c2bfe8699246ff455833f3fc857
https://doi.org/10.5194/egusphere-egu22-1442
https://doi.org/10.5194/egusphere-egu22-1442
The Radio Occultation (RO) technique is based on measurements of phase shifts of GNSS radio waves by an instrument onboard a low-Earth orbiting satellite. The processing of the measurements yields the refractive index of the Earth’s atmosphere, fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0190fdd701b45ecb4b4828d3ae5f1e26
https://doi.org/10.5194/egusphere-egu2020-20563
https://doi.org/10.5194/egusphere-egu2020-20563
Autor:
Stig Syndergaard, Johannes K. Nielsen, Sophie Godin-Beekmann, Beatriz M. Funatsu, Kent B. Lauritsen, Sergey Khaykin, Andrea Pazmino, Hans Gleisner, Alain Hauchecorne, Chantal Claud, Philippe Keckhut
Publikováno v:
Geophysical Research Letters. 44:7510-7518
Temperature changes in the lower and middle stratosphere during 2001-2016 are evaluated using measurements from GPS Radio Occultation (RO) and Advanced Microwave Sounding Unit (AMSU) aboard the Aqua satellite. After downsampling of GPS-RO profiles ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cd1f50dcb391eacac6c8380110c8551
https://doi.org/10.1002/2017gl074353
https://doi.org/10.1002/2017gl074353
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 3081-3098 (2020)
We here present results from an evaluation of the Radio Occultation Meteorology Satellite Application Facility (ROM SAF) gridded monthly mean climate data record (CDR v1.0), based on Global Positioning System (GPS) radio occultation (RO) data from th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1faa73ea62877cee6a7de2d310cc1e73
https://doi.org/10.5194/amt-2019-417
https://doi.org/10.5194/amt-2019-417
Autor:
G. B. Larsen, H. H. Benzon, M. B. Sørensen, Stig Syndergaard, Michael E. Gorbunov, Kent B. Lauritsen
Publikováno v:
Atmospheric Measurement Techniques, Vol 4, Iss 6, Pp 1021-1026 (2011)
Instrument GRAS (Global Navigation Satellite System Receiver for Atmospheric Sounding) on-board of the Metop-A satellite was activated on 27 October 2006. Currently, Metop-A is a fully operational satellite with GRAS providing from 650–700 occultat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c996e3476fe6a195a9ecedba7a61080
https://www.atmos-meas-tech.net/4/1021/2011/
https://www.atmos-meas-tech.net/4/1021/2011/
Publikováno v:
Radio Science. 50:656-669
The fact that fluctuations of refractivity may result in a systematic negative shift of the phase of waves propagating in a random medium is known for a long time. Tatarskii was the first to reveal it, and von Eshleman put this into the context of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d87d292e06f878ca753d59277a493d1
https://doi.org/10.1002/2014rs005639
https://doi.org/10.1002/2014rs005639
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 28:737-751
A radio occultation data processing system (OCC) was developed for numerical weather prediction and climate benchmarking. The data processing algorithms use the well-established Fourier integral operator–based methods, which ensure a high accuracy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d703c2b9475a9d4ac9a73d9b4176c0ad
https://doi.org/10.1175/2011jtecha1489.1
https://doi.org/10.1175/2011jtecha1489.1
Autor:
Stig Syndergaard, Michael E. Gorbunov, Jens Wickert, Ying-Hwa Kuo, Barbara Scherllin-Pirscher, Andrea K. Steiner, E. R. Kursinski, C. Marquardt, Torsten Schmidt, Sergey Sokolovskiy, Ulrich Foelsche, Kent B. Lauritsen, Anthony J. Mannucci, Gottfried Kirchengast, William Schreiner, Stephen S. Leroy, Hans Gleisner, Chi Ao, Stefan Heise, Axel von Engeln, Shu-peng Ho, Doug Hunt
Publikováno v:
Journal of Geophysical Research: Atmospheres. 117
[1] To examine the claim that Global Positioning System (GPS) radio occultation (RO) data are useful as a benchmark data set for climate monitoring, the structural uncertainties of retrieved profiles that result from different processing methods are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7b14640fc4ce544b7687b4c87ffeb17
https://doi.org/10.1029/2012jd017665
https://doi.org/10.1029/2012jd017665
Autor:
Hans Gleisner, Michael E. Gorbunov, Frans Rubek, Kent B. Lauritsen, M. B. Sørensen, Stig Syndergaard, H. Wilhelmsen
Publikováno v:
Atmospheric Measurement Techniques, Vol 4, Iss 10, Pp 2065-2071 (2011)
We discuss the processing of GRAS radio occultation (RO) data done at the GRAS Satellite Application Facility. The input data consists of operational near-real time bending angles from December 2010 from the Metop-A satellite operated by EUMETSAT. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a877a41403d8444ff416ae06ff66c11d
https://doi.org/10.5194/amtd-4-2189-2011
https://doi.org/10.5194/amtd-4-2189-2011