GTF30: global 30 m tidal flat annual maps from 2000 to 2022

Basic information:

Tidal flats are an important part of coastal ecosystems and play an important role in shoreline protection and biodiversity maintenance. The GTF30 are time-series global 30 m tidal flat annual datasets from 2000 to 2022, covering the whole global coasts especially in the high latitides (>60° N), and generated by an automatic mapping method from time-series Landsat observations. The details about the automated method can be seen in the work of Zhang et al. 2023a. The quantitative accuracy assessment shows that the GTF30 dataset achieves an overall accuracy of 90.34% and a kappa coefficient of 0.807.

Notes:

The GTF30 annual maps are divided into 588 5°×5° geographical tiles, and each tile contains 23 bands which denotes the tidal flat maps in 2000, 2001, 2002,..., 2021, 2022.

Usage Policy:

If you plan to use our data in a scientific analysis paper, we strongly recommend contacting us in advance to seek opinions, and consider our contributions in the acknowledgments or as co-authors.

Citations:

Zhang, X., Liu, L., Wang, J., Zhao, T., Liu, W., and Chen, X.: Automated mapping of global 30 m tidal flats using time-series Landsat imagery: algorithm and products, Journal of Remote Sensing, 2023a.

Zhang, X., Liu, L., Zhao, T., Chen, X., Lin, S., Wang, J., Mi, J., and Liu, W.: GWL_FCS30: a global 30 m wetland map with a fine classification system using multi-sourced and time-series remote sensing imagery in 2020, Earth Syst. Sci. Data, 15, 265–293, https://doi.org/10.5194/essd-15-265-2023, 2023b.