Spatiotemporal water dynamic modelling of Ramsar-listed lakes on the Victorian Volcanic Plains using Landsat, ICESat-2 and airborne LiDAR data
Article
Article Title | Spatiotemporal water dynamic modelling of Ramsar-listed lakes on the Victorian Volcanic Plains using Landsat, ICESat-2 and airborne LiDAR data |
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ERA Journal ID | 124225 |
Article Category | Article |
Authors | Zhang, Zhenyu (Author), Liu, Xiaoye (Author) and Wright, Wendy (Author) |
Journal Title | Ecological Informatics |
Journal Citation | 71, pp. 1-15 |
Article Number | 101789 |
Number of Pages | 15 |
Year | 2022 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 1574-9541 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.ecoinf.2022.101789 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S1574954122002394 |
Abstract | Spatiotemporal dynamic information on surface water area and level is a prerequisite for effective wetland conservation and management. However, such information is either unavailable or difficult to obtain. In this study, for the first time, we leverage Landsat imagery, ICESat-2 and airborne LiDAR data to develop time series of water body dynamics over the last 35 years (1987–2021) using machine learning method on a cloud computing platform for lakes identified as international importance in the Western District Lakes Ramsar site in Victoria, Australia. Our results reveal distinct seasonal (dry and wet) variation patterns and long-term changes in trends of lake water areas and levels in response to seasonal rainfall variations and regional climate changes for the periods of before, during and after the Millennium Drought when southeast Australia experienced unprecedented dry conditions. Lake water bodies have not recovered to the status of pre-Millennium Drought, and many permanent Ramsar-listed lakes in the region have become to ephemeral lakes due to climate change. The outcome of this study provides a baseline to help understand the historical and ongoing status of the Ramsar-listed lakes in a warming and drying climate in support of the development of strategic plan to implement international obligations for wetlands protection under the Ramsar Convention. |
Keywords | Ramsar Convention, Google Earth Engine, LiDAR, ICESat-2, Millennium Drought, Western District Lakes Ramsar site |
ANZSRC Field of Research 2020 | 370704. Surface water hydrology |
410206. Landscape ecology | |
370402. Earth and space science informatics | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Surveying and Built Environment |
Federation University | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7qvy/spatiotemporal-water-dynamic-modelling-of-ramsar-listed-lakes-on-the-victorian-volcanic-plains-using-landsat-icesat-2-and-airborne-lidar-data
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