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<p>This study investigates the influence of hydrological and morphological characteristics on the in situ thermal conditions within floodplain wetlands of the Murshidabad district, West Bengal, India. Using multi-temporal Landsat imagery and geospatial analysis, the study quantified changes in wetland area, water depth, hydroperiod, and spatial structure from phase I to phase II, and examined their relationship with land surface temperature (LST) patterns. Results reveal a substantial decline in wetland extent over 58% reduction in both pre- and post-monsoon periods accompanied by increased fragmentation and loss of stable core habitats. Hydrological analysis indicates a marked shift toward ephemeral conditions, with a significant decrease in areas of high water presence frequency and persistent hydroperiods. Thermal analysis demonstrates a clear warming trend, with maximum LST increasing by up to 2.65&#xa0;°C, and showing a weakening correlation between hydrological parameters and cooling effects over time. Geographically weighted regression further highlights the declining influence of wetland hydrology on local temperature regulation. These findings underscore the critical role of intact, hydrologically stable wetlands in mitigating thermal extremes and emphasize the urgent need for conservation and restoration strategies to sustain wetland ecosystem services and enhance climate resilience in floodplain regions.</p>

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Effect of wetland hydrological and morphological characters on in-situ thermal conditions in floodplain wetland

  • 期刊论文

  • 发表日期：

    2025年11月28日

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  • Swades Pal,
  • Barnali Saha,
  • Sandipta Debanshi,
  • Ripan Ghosh,
  • Rajesh Middya,
  • Satyajit Paul

摘要

This study investigates the influence of hydrological and morphological characteristics on the in situ thermal conditions within floodplain wetlands of the Murshidabad district, West Bengal, India. Using multi-temporal Landsat imagery and geospatial analysis, the study quantified changes in wetland area, water depth, hydroperiod, and spatial structure from phase I to phase II, and examined their relationship with land surface temperature (LST) patterns. Results reveal a substantial decline in wetland extent over 58% reduction in both pre- and post-monsoon periods accompanied by increased fragmentation and loss of stable core habitats. Hydrological analysis indicates a marked shift toward ephemeral conditions, with a significant decrease in areas of high water presence frequency and persistent hydroperiods. Thermal analysis demonstrates a clear warming trend, with maximum LST increasing by up to 2.65 °C, and showing a weakening correlation between hydrological parameters and cooling effects over time. Geographically weighted regression further highlights the declining influence of wetland hydrology on local temperature regulation. These findings underscore the critical role of intact, hydrologically stable wetlands in mitigating thermal extremes and emphasize the urgent need for conservation and restoration strategies to sustain wetland ecosystem services and enhance climate resilience in floodplain regions.