Research on sea ice drift detection technology based on Sentinel-1 data in Beaufort sea area
ZHANG Ming1, LV Xiao-qi1,2, WANG Jun-kai1, ZHANG Xi3
1. School of Information Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China;
2. Inner Mongolia University of Technology, Hohhot 010051, China;
3. The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
Abstract：Satellite remote sensing technology serves as an important means to monitor the sea ice in Polar Regions at present.With the continuous optimization of satellite data,the appropriate algorithm may improve the accuracy of sea ice drift monitoring,which has the important significance to the researches of polar sea ice motion in China.This study obtained a more accurate data set through an effective preprocessing method based on Sentinel-1 remote sensing data.Additionally,the SIFT (Scale-Invariant Feature Transform) feature tracking method was used to realize the monitoring of the velocity and orientation of the sea ice drifting in polar regions with a time interval of one day based on the previous data set.Finally,this method was validated by buoy data.The results suggest that the drift vector obtained in this study is consistent with that obtained from buoy data,which indicates that the method can effectively realize the detection of sea ice monitoring in the polar regions with high accuracy(the average error ratio is 8.1% compared with the buoy data).
ZHANG Ming,LV Xiao-qi,WANG Jun-kai et al. Research on sea ice drift detection technology based on Sentinel-1 data in Beaufort sea area[J]. Marine Environmental Science, 2018, 37(2): 287-293.
PEROVICH D,RICHTERMENGE J A.From points to Poles:extrapolating point measurements of sea-ice mass balance[J].Annals of Glaciology,2006,44(1):188-192.
[5]
米丽丽.渤海海冰动力过程的改进离散单元方法[D].大连:大连理工大学,2014.
[6]
MAHONEY A,EICKEN H,SHAPIRO L.How fast is landfast ice? A study of the attachment and detachment of nearshore ice at Barrow,Alaska[J].Cold Regions Science & Technology,2007,47(3):233-255.
[7]
BARTH A,CANTER M,SCHAEYBROECK B V,et al.Assimilation of sea surface temperature,sea ice concentration and sea ice drift in a model of the Southern Ocean[J].Ocean Modelling,2015,93:22-39.
[8]
ZHAO Y,LIU A K,LONG D G.Validation of sea ice motion from QuikSCAT with those from SSM/I and buoy[J].IEEE Transactions on Geoscience & Remote Sensing,2002,40(6):1241-1246.
[9]
GIRARD-ARDHUIN F,EZRATY R.Enhanced Arctic Sea Ice Drift Estimation Merging Radiometer and Scatterometer Data[J].IEEE Transactions on Geoscience & Remote Sensing,2012,50(7):2639-2648.
[10]
YU J,YANG Y,LIU A K,et al.Analysis of sea ice motion and deformation in the marginal ice zone of the Bering Sea using SAR data[J].International Journal of Remote Sensing,2009,30(14):3603-3611.
[11]
LINOW S,HOLLANDS T,DIERKING W.An assessment of the reliability of sea-ice motion and deformation retrieval using SAR images[J].Annals of Glaciology,2015,56(69):229-234.
[12]
HOLLANDS T,DIERKING W.Performance of a multiscale correlation algorithm for the estimation of sea-ice drift from SAR images:initial results[J].Annals of Glaciology,2010,52(57):311-317.
[13]
颜钰,邵冬冬,许映军,等.海冰运动研究进展综述[J].海洋预报,2017,34(3):85-93.
[14]
FILY M,ROTHROCK D A.Extracting Sea Ice Data from Satellite SAR Imagery[J].IEEE Transactions on Geoscience & Remote Sensing,2007,GE-24(6):849-854.
