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1 to 10 of 109 Results
Ross Sea polynyas : Response of ice concentration retrievals to large areas of thin ice
Dec 21, 2007
Kwok, R.; Comiso, J. C.; Martin, S.; Drucker, R., 2007, "Ross Sea polynyas : Response of ice concentration retrievals to large areas of thin ice", https://hdl.handle.net/2014/40930, Journal Of Geophysical Research, Vol. 112, C12012, doi:10.1029/2006JC003967, 2007, JPL Open Repository
For a 3-month period between May and July of 2005, we examine the response of the Advanced Microwave Scanning Radiometer (AMSR-E) Enhanced NASA Team 2 (NT2) and AMSR-E Bootstrap (ABA) ice concentration algorithms to large areas of thin ice of the Ross Sea polynyas. Coincident Env...
ICESat over Arctic sea ice : Interpretation of altimetric and reflectivity profiles
Jun 3, 2006
Kwok, R.; Cunningham, G. F.; Zwally, H. J.; Yi, D., 2006, "ICESat over Arctic sea ice : Interpretation of altimetric and reflectivity profiles", https://hdl.handle.net/2014/40981, Journal of Geophysical Research, Vol. 111, C06006, doi:10.1029/2005JC003175, 2006, JPL Open Repository
We provide an assessment of the ICESat altimeter for studying the Arctic Ocean and examine the magnitude of the large- and small-scale expressions of geophysical processes embedded in the elevation profiles. This analysis includes data from six surveys. ...
Annual cycles of multiyear sea ice coverage of the Arctic Ocean : 1999–2003
Nov 10, 2004
Kwok, R., 2004, "Annual cycles of multiyear sea ice coverage of the Arctic Ocean : 1999–2003", https://hdl.handle.net/2014/40364, Journal of Geophysical Research, Vol. 109, C11004, doi:10.1029/2003JC002238, 2004, JPL Open Repository
For the years 1999-2003, we estimate the time-varying perennial ice zone (PIZ) coverage and construct the annual cycles of multiyear (MY, including second year) ice coverage of the Arctic Ocean using QuikSCAT backscatter, MY fractions from RADARSAT, and the record of ice export f...
Fram Strait sea ice outflow
Jan 1, 2004
Kwok, R.; Cunningham, G. F.; Pang, S. S., 2004, "Fram Strait sea ice outflow", https://hdl.handle.net/2014/6377, ['Journal of geophyscial research, v. 109, C01009, doi:10.1029/2003JC001785', 'Pasadena, CA, USA'], JPL Open Repository
We summarize 24 years of ice export estimates and examine, over a 9-year record, the associated variability in the time-varying upward-looking sonar (ULS) thickness distributions of the Fram Strait. A more thorough assessment of the PMW (passive microwave) ice motion with 5 years...
Fram Strait sea ice outflow
Jan 1, 2004
Kwok, R.; Cunningham, G. F.; Pang, S. S., 2004, "Fram Strait sea ice outflow", https://hdl.handle.net/2014/37228, ['Journal of geophysical research, vol. 109 , pp c09009-c01029', 'Pasadena, CA, USA'], JPL Open Repository
We summarize 24 years (1978??2) of ice export estimates and examine, over a 9-year record, the associated variability in the time-varying upward-looking sonar (ULS) thickness distributions of the Fram Strait.
Sub-daily sea ice motion and deformation from RADARSAT observations
Dec 1, 2003
Kwok, R.; Cunningham, G. F., 2003, "Sub-daily sea ice motion and deformation from RADARSAT observations", https://hdl.handle.net/2014/7880, ['Geophysical research letters v.30, n.23, 2218, doi:10.1029/2003GL018723', 'Pasadena, CA, USA'], JPL Open Repository
We find a persistent level of oscillatory sea ice motion and deformation, superimposed on the large-scale wind-driven field, in May 2002 (spring) and February 2003 (mid-winter), in the high Arctic over a region centered at approx.(85degreeN, 135degreeW). At this latitude, the RAD...
Sub-daily sea ice and deformation from RADARSAT observations
Dec 1, 2003
Kwok, R.; Cunningham, G. F.; Hibler, W. D. III, 2003, "Sub-daily sea ice and deformation from RADARSAT observations", https://hdl.handle.net/2014/37327, Geophysical research letters, vol. 30, no. 30, pp. 2218-2221, JPL Open Repository
Periodic correlations in ice motion and deformation can be seen in lenght scales from 10 km and above, and suggest a 12 hour oscillation that is more likely associated with inertial rather than tidal frequencies.
Continuing development of a multi-sensor analysis of Arctic polynyas
Jul 21, 2003
Holt, B.; Kwok, R.; Martin, S.; Drucker, R., 2003, "Continuing development of a multi-sensor analysis of Arctic polynyas", https://hdl.handle.net/2014/11317, ['International Geoscience and Remote Sensing Symposium', 'Toulouse, France'], JPL Open Repository
No abstract provided
Impact of cloud cover on arctic sea ice surface melt
May 12, 2003
Nghiem, S. V.; Kwok, R.; Perovich, D. K.; Barber, D. G., 2003, "Impact of cloud cover on arctic sea ice surface melt", https://hdl.handle.net/2014/7189, ['Seventh Conference on Polar Meteorology', 'Hyannis, MA, USA'], JPL Open Repository
No abstract provided
Arctic ocean multiyear sea ice area balance: Quikscat observations
Apr 6, 2003
Kwok, R., 2003, "Arctic ocean multiyear sea ice area balance: Quikscat observations", https://hdl.handle.net/2014/6379, ['EGS-AGU Joint Assembly', 'Nice, France'], JPL Open Repository
No abstract provided
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