Effects of Spatial Resolution on the Satellite Observation of Floating Macroalgae Blooms
Abstract
:1. Introduction
2. Data and Methods
2.1. The Study Area
2.2. Satellite Images and Data Processing
2.3. Estimation of the Area of Floating Macroalgae
3. Results and Analysis
3.1. Variations of MM-CA, AA and AD Derived from Different Resolution Images
3.2. Seasonal Changes in Floating Macroalgae Coverages Estimated by High Resolution Images
4. Conclusions and Prospect
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Satellite Images | Sensing Date and Time | Spatial Resolution (m) |
---|---|---|
A1, Sentinel-2 MSI | 3 June 2018 10:36:51 | 10 |
A2, Tiangong-2 MWI | 3 June 2018 14:30:33 | 100 |
A3, Terra MODIS | 3 June 2018 11:10:00 | 250 |
A4, Terra MODIS | 3 June 2018 11:10:00 | 500 |
B1, GF-1 WFV | 23 June 2019 11:05:11 | 16 |
B2, HY-1C CZI | 23 June 2019 11:43:25 | 50 |
B3, Aqua MODIS | 23 June 2019 13:30:00 | 250 |
B4, Aqua MODIS | 23 June 2019 13:30:00 | 500 |
C1, Landsat-5 TM | 24 June 2009 10:06:30 | 30 |
C2, Aqua MODIS | 24 June 2009 13:05:00 | 250 |
C3, Aqua MODIS | 24 June 2009 13:05:00 | 500 |
Satellite Images | MM-CA (km2) | AA (km2) | AD | ORAA | ORMM-CA |
---|---|---|---|---|---|
A1. Sentinel-2 MSI (10 m) | 27.13 | 8243.24 | 0.33% | - | - |
A2. TG-2 MWI (100 m) | 93.17 | 4073.31 | 2.29% | 51.98% | 47.71% |
A3. Terra MODIS (250 m) | 108.83 | 2038.39 | 5.34% | 75.33% | 58.04% |
A4. Terra MODIS (500 m) | 158.07 | 1089.39 | 14.51% | 86.78% | 64.09% |
B1. GF-1 WFV (16 m) | 1584.75 | 59,728.31 | 2.65% | - | - |
B2. HY-1C CZI (50 m) | 2293.66 | 55,235.83 | 4.15% | 11.21% | 9.53% |
B3. Aqua MODIS (250 m) | 3103.49 | 35,327.71 | 8.78% | 41.42% | 48.82% |
B4. Aqua MODIS (500 m | 3644.28 | 27,658.22 | 13.18% | 53.84% | 49.33% |
C1. Landsat-5 TM (30 m) | 29.26 | 6389.28 | 0.46% | - | - |
C2. Aqua MODIS (250 m) | 78.34 | 1785.27 | 4.39% | 72.77% | 44.05% |
C3. Aqua MODIS (500 m) | 96.01 | 956.84 | 10.03% | 85.3% | 50.34% |
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Wang, X.; Xing, Q.; An, D.; Meng, L.; Zheng, X.; Jiang, B.; Liu, H. Effects of Spatial Resolution on the Satellite Observation of Floating Macroalgae Blooms. Water 2021, 13, 1761. https://doi.org/10.3390/w13131761
Wang X, Xing Q, An D, Meng L, Zheng X, Jiang B, Liu H. Effects of Spatial Resolution on the Satellite Observation of Floating Macroalgae Blooms. Water. 2021; 13(13):1761. https://doi.org/10.3390/w13131761
Chicago/Turabian StyleWang, Xinhua, Qianguo Xing, Deyu An, Ling Meng, Xiangyang Zheng, Bo Jiang, and Hailong Liu. 2021. "Effects of Spatial Resolution on the Satellite Observation of Floating Macroalgae Blooms" Water 13, no. 13: 1761. https://doi.org/10.3390/w13131761