Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Stig Syndergaard"'
Publikováno v:
Atmosphere, Vol 13, Iss 5, p 790 (2022)
We compare the random error statistics (uncertainties) of COSMIC (Constellation Observing System for Meteorology, Ionosphere and Climate, C1) and COSMIC-2 (C2) radio occultation (RO) bending angles and refractivities for the months of August 2006 and
Externí odkaz:
https://doaj.org/article/dccd4dde061d4697b4ed68f07b47abf1
Autor:
Congliang Liu, Gottfried Kirchengast, Stig Syndergaard, Marc Schwaerz, Julia Danzer, Yueqiang Sun
Publikováno v:
Remote Sensing, Vol 12, Iss 21, p 3637 (2020)
The residual ionospheric error (RIE) from higher-order terms in the refractive index is not negligible when using global navigation satellite system (GNSS) radio occultation (RO) data for climate and meteorology applications in the stratosphere. In t
Externí odkaz:
https://doaj.org/article/96f4641d402e47f4a57970169a654ae3
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/
Publikováno v:
Earth and Space Science. 9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc0587a6a12d71b6de1c75a26ca83ea9
https://doi.org/10.1029/2022ea002335
https://doi.org/10.1029/2022ea002335
Autor:
Björn Bergsson, Stig Syndergaard
Publikováno v:
Journal of Geophysical Research: Space Physics. 127
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2092cf8ca4d3298cab363c2e150478c3
https://doi.org/10.1029/2022ja030296
https://doi.org/10.1029/2022ja030296
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
Autor:
M. Schwaerz, Stig Syndergaard, Congliang Liu, Julia Danzer, Yueqiang Sun, Gottfried Kirchengast
Publikováno v:
Remote Sensing; Volume 12; Issue 21; Pages: 3637
Remote Sensing, Vol 12, Iss 3637, p 3637 (2020)
Remote Sensing, Vol 12, Iss 3637, p 3637 (2020)
The residual ionospheric error (RIE) from higher-order terms in the refractive index is not negligible when using global navigation satellite system (GNSS) radio occultation (RO) data for climate and meteorology applications in the stratosphere. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6673505d39a834277b8dcc492da74f4
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
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:
Stig Syndergaard, E. R. Kursinski, Weihua Bai, Congliang Liu, Yueqiang Sun, Gottfried Kirchengast, Qifei Du
Publikováno v:
Advances in Space Research. 60:2776-2811
Global Navigation Satellite System radio occultation (GNSS RO, or in short GRO) has become a major method to observe the Earth's atmospheric thermodynamic state variables, i.e., pressure, temperature, and humidity as retrieved from refraction measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef9589251fa497570b97be5b7283fa1f
https://doi.org/10.1016/j.asr.2017.05.011
https://doi.org/10.1016/j.asr.2017.05.011