...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >Terrain Correction for Increasing the Evapotranspiration Estimation Accuracy in a Mountainous Watershed
【24h】

Terrain Correction for Increasing the Evapotranspiration Estimation Accuracy in a Mountainous Watershed

机译：增加山区流域的蒸散估算精度的地形校正

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Evapotranspiration (ET) plays a major role in the energy and water balances of the hydrological cycle. Monitoring ET at a regional level has become feasible with the advance of remote-sensing technology. This letter presents a module that incorporates satellite images, surface meteorological data, and topographic information in estimating ET over a tropical montane watershed. The satellite images used include Thematic Mapper (TM), Landsat-7 Enhanced Thematic Mapper Plus, and Advanced Spaceborne Thermal Emission and Reflection Radiometer with visible, near infrared, shortwave infrared, and thermal infrared bands. The estimated surface energy fluxes are compared with the in situ measurements. The results demonstrate that, compared to other model estimations, the proposed module with terrain correction provides the highest correlation (r = 0.75) between the estimated latent heat flux associated with ET and its corresponding in situ measurement. The proposed module will be further refined and applied to monitor long-term ET over mountainous watersheds.
机译：蒸散量（ET）在水文循环的能量和水平衡中起主要作用。随着遥感技术的发展，在区域范围内监测ET已变得可行。这封信介绍了一个模块，该模块将卫星图像，地面气象数据和地形信息结合在一起，以估算热带山地分水岭上的ET。所使用的卫星图像包括Thematic Mapper（TM），Landsat-7增强型Thematic Mapper Plus和具有可见，近红外，短波红外和热红外波段的先进星载热发射和反射辐射计。将估计的表面能通量与原位测量值进行比较。结果表明，与其他模型估计相比，所建议的带有地形校正的模块在与ET相关的估计潜热通量与其相应的原位测量之间提供了最高的相关性（r = 0.75）。拟议的模块将进一步完善，并将用于监测山区流域的长期ET。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号