基于Landsat 8影像的策勒县域典型时期日蒸散量时空分布格局分析

doi:10.6048/j.issn.1001-4330.2017.10.020

摘要/Abstract

摘要： 【目的】估算地表蒸散量有利于水资源合理分配与管理，为水资源可持续发展提供依据。【方法】利用Landsat 8遥感数据集，在ENVI遥感图像处理软件的支持下，结合气温、风速、气压、日照时数等气象数据，应用SEBS模型估算2016年3月27日、5月21日、7月24日、9月10日新疆策勒县的蒸散发量。【结果】估算结果时间上存在秋季<春季<夏季的变化规律，典型季节的4 d蒸散发量分别为:3.885，4.095，4.701和4.511 mm/d;其空间变化趋势为:北部荒漠区<南部山区<中部平原区。【结论】利用彭曼公式计算的结果与对SEBS的估算结果进行比较，SBES模型的结果是合理的。

关键词: Landsat 8; SEBS; 蒸散发

Abstract: 【Objective】 The estimation of surface evapotranspiration is beneficial to the rational allocation and management of water resources, which might provide the basis for the sustainable development of water resources.【Method】By using the Landsat 8 remote sensing data set, With the support of the ENVI remote sensing image processing software, combined with the air temperature, air pressure, wind speed, sunshine duration and other meteorological data, evapotranspiration was estimated by SEBS model in March 27th, May 21st, July 24th and September 10th 2016 in Xinjiang Qira County.【Result】The results could reflect season change; for instance, the results of farmland were 3.885, 4.095, 4.701, 4.511 mm/day on four days respectively. The overall trend was the northern desert plain < the southern mountains > the central region.【Conclusion】The results of SEBS estimation are compared with those calculated by Penman formula, which shows that the results of SBES model are reasonable.

Key words: Landsat 8; SEBS model; evapotranspiration

中图分类号:

陆婷, 郑江华. 基于Landsat 8影像的策勒县域典型时期日蒸散量时空分布格局分析[J]. 新疆农业科学, 2017, 54(10): 1941-1948.

LU Ting, ZHENG Jiang-hua. Analysis of Temporal and Spatial Distribution Pattern of Daily Evapotranspiration in Qira County Based on Landsat 8 Images[J]. Xinjiang Agricultural Sciences, 2017, 54(10): 1941-1948.

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