Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL092170 |
SPACE‐BORNE CLOUD‐NATIVE SATELLITE‐DERIVED BATHYMETRY (SDB) MODELS USING ICESat‐2 and SENTINEL‐2 | |
N. Thomas; A. P. Pertiwi; D. Traganos; D. Lagomasino; D. Poursanidis; S. Moreno; L. Fatoyinbo | |
2021-02-19 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Shallow nearshore coastal waters provide a wealth of societal, economic and ecosystem services, yet their topographic structure is poorly mapped due to a reliance upon expensive and time intensive methods. Space‐borne bathymetric mapping has helped address these issues, but has remained largely dependent upon in situ measurements. Here we fuse ICESat‐2 lidar data with Sentinel‐2 optical imagery, within the Google Earth Engine cloud platform, to create openly available spatially continuous high‐resolution bathymetric maps at regional‐to‐national scales in Florida, Crete and Bermuda. ICESat‐2 bathymetric classified photons are used to train three Satellite Derived Bathymetry (SDB) methods, including Lyzenga, Stumpf and Support Vector Regression algorithms. For each study site the Lyzenga algorithm yielded the lowest RMSE (approx. 10‐15%) when compared with validation data. We demonstrate a means of using ICESat‐2 for both model calibration and validation, thus cementing a pathway for fully space‐borne estimates of nearshore bathymetry in shallow, clear water environments. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/315633 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | N. Thomas,A. P. Pertiwi,D. Traganos,等. SPACE‐BORNE CLOUD‐NATIVE SATELLITE‐DERIVED BATHYMETRY (SDB) MODELS USING ICESat‐2 and SENTINEL‐2[J]. Geophysical Research Letters,2021. |
APA | N. Thomas.,A. P. Pertiwi.,D. Traganos.,D. Lagomasino.,D. Poursanidis.,...&L. Fatoyinbo.(2021).SPACE‐BORNE CLOUD‐NATIVE SATELLITE‐DERIVED BATHYMETRY (SDB) MODELS USING ICESat‐2 and SENTINEL‐2.Geophysical Research Letters. |
MLA | N. Thomas,et al."SPACE‐BORNE CLOUD‐NATIVE SATELLITE‐DERIVED BATHYMETRY (SDB) MODELS USING ICESat‐2 and SENTINEL‐2".Geophysical Research Letters (2021). |
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