Scholarlink

The Landsat-8 data over the Mayurakshi Reservoir command area were used in this study together with the Surface-Balanced Algorithm for Land (SEBAL) approach. The reservoir provides irrigation water for the boro crop over a large area (20,000 ha). Various parameters of SEBAL, namely land Surface temperature, sensible heat flux, Net radiation, ground heat flux, and latent heat flux were calculated from Landsat-8 data. The required reference evapotranspiration was also computed using weather data. The result represents the ET-24 h which ranges between 0.437 mm/day and 8.522 mm/day, where most of the agricultural lands showed evapotranspiration values in between 5.828 and 8.522 mm/day. Penman’s equation has been used to check the estimated ET from SEBAL. Results show that Penman’s equation gave the PET value of 3.40 mm/day, which is in the range of ET computed from SEBAL.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

SEBAL-Based Evapotranspiration Assessment with Landsat 8 Data in an Irrigation Command Area

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Minal Hasan,
  • Sneha Murmu

摘要

The Landsat-8 data over the Mayurakshi Reservoir command area were used in this study together with the Surface-Balanced Algorithm for Land (SEBAL) approach. The reservoir provides irrigation water for the boro crop over a large area (20,000 ha). Various parameters of SEBAL, namely land Surface temperature, sensible heat flux, Net radiation, ground heat flux, and latent heat flux were calculated from Landsat-8 data. The required reference evapotranspiration was also computed using weather data. The result represents the ET-24 h which ranges between 0.437 mm/day and 8.522 mm/day, where most of the agricultural lands showed evapotranspiration values in between 5.828 and 8.522 mm/day. Penman’s equation has been used to check the estimated ET from SEBAL. Results show that Penman’s equation gave the PET value of 3.40 mm/day, which is in the range of ET computed from SEBAL.