Zobrazeno 1 - 10
of 26
pro vyhledávání: '"K. C. Jezek"'
Publikováno v:
The Cryosphere, Vol 17, Pp 2793-2809 (2023)
In studying the mass balance of polar ice sheets, fluctuations in firn density near the surface is a major uncertainty. In this paper, we explore these variations at locations on the Greenland Ice Sheet and at the Dome C location in Antarctica. Boreh
Externí odkaz:
https://doaj.org/article/419efc9f11554c0ab96733154725fef4
Autor:
M. Brogioni, M. J. Andrews, S. Urbini, K. C. Jezek, J. T. Johnson, M. Leduc-Leballeur, G. Macelloni, S. F. Ackley, A. Bringer, L. Brucker, O. Demir, G. Fontanelli, C. Yardim, L. Kaleschke, F. Montomoli, L. Tsang, S. Becagli, M. Frezzotti
Publikováno v:
The Cryosphere, Vol 17, Pp 255-278 (2023)
An airborne microwave wide-band radiometer (500–2000 MHz) was operated for the first time in Antarctica to better understand the emission properties of sea ice, outlet glaciers and the interior ice sheet from Terra Nova Bay to Dome C. The different
Externí odkaz:
https://doaj.org/article/6ae32501562c4c19a7992634f7e6f22c
Autor:
J. Z. Miller, D. G. Long, K. C. Jezek, J. T. Johnson, M. J. Brodzik, C. A. Shuman, L. S. Koenig, T. A. Scambos
Publikováno v:
The Cryosphere, Vol 14, Pp 2809-2817 (2020)
Enhanced-resolution L-band brightness temperature (TB) image time series generated from observations collected over the Greenland Ice Sheet by NASA's Soil Moisture Active Passive (SMAP) satellite are used to map Greenland's perennial firn aquifers fr
Externí odkaz:
https://doaj.org/article/5b88ade385654f80828b3a9bc5768161
Publikováno v:
Waves in Random and Complex Media. 21:184-197
Measurements of radar pulse return waveforms are known to provide information on properties of the observed surface, and are commonly used in oceanographic altimetry. In such applications, the convolution model (also called the “Brown model”) is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f4f5c83e7ed3ca4162765083a519230
https://doi.org/10.1080/17455030.2010.537710
https://doi.org/10.1080/17455030.2010.537710
Autor:
K. C. Jezek, Guoqing Zhou
Publikováno v:
International Journal of Remote Sensing. 23:1143-1159
This paper presents two mosaics of Greenland compiled from Declassified Intelligence Photography Project (DISP) data acquired in 1962 and 1963. The first mosaic consists of 24 orthorectified images from eight orbits acquired during the ARGON 9034A mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a6172e8fe79729ad80ff7b9633fcf80
https://doi.org/10.1080/01431160110060907
https://doi.org/10.1080/01431160110060907
Publikováno v:
Canadian Journal of Remote Sensing. 27:193-206
RESUMELes velocites de la plate-forme de glace Filchner et de ses glaciers tributaires sont deduites a partir d'une technique d'interferometrie radar satellitaire dite de suivi du chatoiement (speckle tracking). La methode requiert un couplet coheren
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::799541a431368d60ce7b73b7245d338a
https://doi.org/10.1080/07038992.2001.10854936
https://doi.org/10.1080/07038992.2001.10854936
Autor:
J. F. Bolzan, K. C. Jezek
Publikováno v:
Polar Geography. 24:98-112
Numerical modeling based on radiative transfer theory and observations of grain growth with depth have indicated that passive microwave brightness temperatures over the polar ice sheets should be a function of accumulation rate. Using accumulation‐
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63806fb38dbfff1549465d3e925abf36
https://doi.org/10.1080/10889370009377690
https://doi.org/10.1080/10889370009377690
Publikováno v:
International Journal of Remote Sensing. 16:1223-1229
Passive microwave satellite data provide extremely important information about the climate and surface conditions in the often cloudy high latitude regions of the Earth. Available since 1978, multichannel passive microwave data have great potential f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::426f4550936d29180d6d08cb769c6e68
https://doi.org/10.1080/01431169508954473
https://doi.org/10.1080/01431169508954473
Autor:
C.J. Van Der Veen, K. C. Jezek
Publikováno v:
Annals of Glaciology. 17:300-306
The radiative-transfer model developed by Zwally (1977) is modified and coupled to a one-dimensional time-dependent temperature model, to calculate the seasonal variation in brightness temperature. By comparing this with observed records, the radiati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92e9ba2686050870cc4f298554c89717
https://doi.org/10.3189/s0260305500013008
https://doi.org/10.3189/s0260305500013008
Publikováno v:
The Journal of the Acoustical Society of America. 88:1903-1912
Sonar echo amplitude data have been collected at carrier frequencies of 188 and 120 kHz from the underside of different sea ice types. Histograms of normal incidence echo amplitudes were formed from over 90 samples of each ice type. Experiments were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed6962f5698c2d2416eee1cb56667f93
https://doi.org/10.1121/1.400213
https://doi.org/10.1121/1.400213