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Study on Sea Ice Extraction and Area Correction Model Based on MODIS and GF Data
| Content Provider | Scilit |
|---|---|
| Author | Wu, Jinwen Sun, Longyu Zhang, Yushu Ji, Ruipeng Yu, Wenying Feng, Rui Guo, Liang |
| Copyright Year | 2018 |
| Description | Journal: Iop Conference Series: Materials Science and Engineering To gain correct sea ice data, high time resolution (MODIS) and high spatial resolution (GF-2) materials are combined to achieve wide-range high precision monitoring of sea ice area in Liaodong Bay. This article takes GF-2 sea ice area as the baseline, intercepts corresponding MODIS sea ice monitoring scope, establishes a sea ice area correction model, and conducts long time series' analysis of sea ice area change. Here's the result: spectral observation result shows that comparing with CH2 channel, spectral reflectance of the snow-covering sea ice, ice-water mixture, seawater and sea ice in CH1 are with a greater difference value and easier to distinguish. Comparing with the accuracy of 3 extraction methods of MODIS sea ice, the optimal method is CH1 single channel extraction. This paper takes the sea ice area extracted by GF-2 satellite as the benchmark data, then establishes a MODIS sea ice area correction model. The model's correlation coefficient is 0.96. The monitoring error after correction is reduced from 39% to 10%. Sea ice area change in long time sequence shows that the sea ice area of Liaodong Bay is in slight downtrend. The inter-annual variation is featured with 4 years' periodical change. In every winter, sea ice area is in unimodal change, and reaches the maximum value in about early Feb. |
| Related Links | http://iopscience.iop.org/article/10.1088/1757-899X/392/6/062105/pdf |
| ISSN | 17578981 |
| e-ISSN | 1757899X |
| DOI | 10.1088/1757-899x/392/6/062105 |
| Journal | Iop Conference Series: Materials Science and Engineering |
| Issue Number | 6 |
| Volume Number | 392 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2018-08-03 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Materials Science and Engineering Imaging Science Area in Liaodong Liaodong Bay Sea Ice Area Correction Model |
| Content Type | Text |
| Resource Type | Article |
