Zobrazeno 1 - 10
of 31
pro vyhledávání: '"C. Gaffard"'
Publikováno v:
Annales Geophysicae, Vol 26, Pp 2597-2612 (2008)
Ground based remote sensing systems for future observation operations will allow continuous monitoring of the lower troposphere at temporal resolutions much better than every 30 min. Observations which may be considered spurious from an individual
Externí odkaz:
https://doaj.org/article/dc602a10c8c0438b9cccb9381e597447
Publikováno v:
Annales Geophysicae, Vol 24, Pp 23-35 (2006)
Previous studies have indicated that VHF clear-air radar return strengths are reduced during periods of precipitation. This study aims to examine whether the type of precipitation, stratiform and convective precipitation types are identified, has
Externí odkaz:
https://doaj.org/article/2ea9a8d9aba049f6bc3922d590348549
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 28:993-1006
The arrival time difference (ATD) long-range lightning location network (ATDnet) is the long-range very low frequency (VLF) lightning location network owned and operated by the Met Office, locating lightning using a waveform correlation technique. Pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dadc9cfba745ff18c33c1fa75beebb77
https://doi.org/10.1175/2011jtecha1527.1
https://doi.org/10.1175/2011jtecha1527.1
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 40:531-540
The spatial resolution of a ground-based microwave radiometer is analyzed through a multiresolution wavelet transform. This technique allows us to compare the ability of the instrument to detect perturbations in a profile under different observing co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7950b9bb539b067fa863269fc8fd31a
https://doi.org/10.1109/tgrs.2002.1000313
https://doi.org/10.1109/tgrs.2002.1000313
Autor:
M. L. G. Oldfield, D. N. Matheson, C. Gaffard, J. Nash, Brian Ellison, Peter G. Huggard, Alec Bennett, B. P. Moyna, T. Oakley
Publikováno v:
SPIE Proceedings.
A compact, solid state, zenith looking 94 GHz meteorological radar is described. Samples of the reflectivity data obtained from representative samples of hydrometeors, including cirrus cloud and fog, are presented. This bistatic FMCW radar delivers c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a49ec5da1de12c42287c410bafceeaab
https://doi.org/10.1117/12.800347
https://doi.org/10.1117/12.800347
Autor:
C. Gaffard, J. Parent
Publikováno v:
Geophysical Research Letters. 17:615-618
Using an HF skywave radar to study the decametric sea waves, it appears that their amplitudes do not saturate as the wind speed increases. A measurement method, based on the Kahma sea wave spectrum, is proposed and radar estimations of the wind speed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d845116dbfae6d342a91dd18c6d82f3
https://doi.org/10.1029/gl017i005p00615
https://doi.org/10.1029/gl017i005p00615
Autor:
C. Gaffard, Tim J. Hewison
Publikováno v:
2006 IEEE MicroRad.
A variational retrieval method is described to combine observations from microwave and infrared radiometers and surface sensors with background from short-range numerical weather prediction (NWP) forecasts in an optimal way, accounting for their erro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e86f9198c8f527aac5197bde474ba502
https://doi.org/10.1109/micrad.2006.1677095
https://doi.org/10.1109/micrad.2006.1677095
Publikováno v:
Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2006, 24 (1), pp.23-35
Scopus-Elsevier
Annales Geophysicae, Vol 24, Pp 23-35 (2006)
Annales Geophysicae, Vol 24, Iss 1, Pp 23-35 (2006)
Annales Geophysicae, European Geosciences Union, 2006, 24 (1), pp.23-35
Scopus-Elsevier
Annales Geophysicae, Vol 24, Pp 23-35 (2006)
Annales Geophysicae, Vol 24, Iss 1, Pp 23-35 (2006)
Previous studies have indicated that VHF clear-air radar return strengths are reduced during periods of precipitation. This study aims to examine whether the type of precipitation, stratiform and convective precipitation types are identified, has any
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88192f1140ca2f38bc0988245135b14d
https://hal.archives-ouvertes.fr/hal-00317911/file/angeo-24-23-2006.pdf
https://hal.archives-ouvertes.fr/hal-00317911/file/angeo-24-23-2006.pdf
Autor:
J. Nash, C. Gaffard, T. Hewison, E. Norton, J. L. Agnew, E. Walker, J. Jones, M. Smees, Markus Ramatschi, Galina Dick
Publikováno v:
COST 720 Final Symposium-Applications of Atmospheric Profiles in Research and Operations (Toulouse, France 2006)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a5cc9acfe6c5abd3073aaa0b215a1b05
https://gfzpublic.gfz-potsdam.de/pubman/item/item_235100
https://gfzpublic.gfz-potsdam.de/pubman/item/item_235100
Publikováno v:
Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium.
Discusses the requirements to be fulfilled before observations can be assimilated in numerical models. More specifically, the authors discuss the most important characteristics of ERS-1 scatterometer data and its importance for Numerical Weather Pred
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0c56cc1a0e771a1a72ec7205caba98f
https://doi.org/10.1109/igarss.1993.322418
https://doi.org/10.1109/igarss.1993.322418