基于蒸散发模型的定量遥感缺水指数
Quantitative remote sensing of water deficit index based on evapotranspiration
查看参考文献20篇
文摘
|
该文针对西北地区存在着严重的缺水问题,以黑河中游区域范围内的张掖市内的盈科绿洲及荒漠为研究对象,运用ASTER卫星遥感数据,根据地表能量平衡原理,建立作物缺水指数模型。在前人研究基础上,对缺水指数模型涉及的2个参数进行了改进:1)在植被覆盖区,利用半干旱地区基于亚象元的土壤蒸发和植物蒸腾双层模型,剥离土壤的影响,获取缺水指数模型中的植被潜热通量;2)为了更精确地提取地表信息,利用遗传算法对该区进行混合像元分解,获取模型中的地表组分温度参量。通过地表缺水指数估算干旱半干旱区土壤含水率,模拟结果与地表同步实测值土壤水比较,误差精度分布在2.17%~3.58%,表明该方法是可行的。 |
其他语种文摘
|
Water shortage is already a serious problem in arid North-west China.As an indicator of water shortage,a new surface water deficit index to estimate soil moisture content from optical and thermal spectral information of ASTER imagery based on the surface energy balance was presented in this paper.Compared to models published previously,two improvements have been made:1) In the vegetation area,to strip effectively the impact of surface soil,the series two-layer was applied to acquiring vegetation latent heat flux parameter in the surface water deficit index model;2) Because most pixels in the ASTER image are mixed and consist of different types of land cover,to meet the practical needs of a quantitative remote sensing study,genetic inverse algorithm(GIA) was used to realize retrieval of component temperature parameter in the surface water deficit index model.Taking Yingke green land in China for example,field experiments were carried out to validate the developed model.Comparing simulated soil water retrieved by surface water deficit index model with field measured data,the experimental results show that the new method is feasible,which can provide a new way of thinking for retrieval of soil moisture. |
来源
|
农业工程学报
,2012,28(2):114-120 【核心库】
|
DOI
|
10.3969/j.issn.1002-6819.2012.02.021
|
关键词
|
蒸散发
;
土壤含水率
;
模型
;
组分温度
;
作物缺水指数
|
地址
|
1.
华南农业大学信息学院, 广州, 510642
2.
中科院研究生院, 北京, 100039
|
语种
|
中文 |
文献类型
|
研究性论文 |
ISSN
|
1002-6819 |
学科
|
自动化技术、计算机技术 |
基金
|
国家973计划
;
国家自然科学基金项目
|
文献收藏号
|
CSCD:4436534
|
参考文献 共
20
共1页
|
1.
易永红. 区域蒸散发遥感模型研究的进展.
水利学报,2008,39(9):1118-1124
|
被引
16
次
|
|
|
|
2.
Bowen L S. The ratio of heat losses by conduction and by evaporation from any water surface.
Physics Review,1926,27(6):779-789
|
被引
84
次
|
|
|
|
3.
Thornthwaite C W. The determination of evaporation from land and water surfaces.
Monthly Weather Review,1939,67(1):4-11
|
被引
14
次
|
|
|
|
4.
Penman H L. Natural evaporation from open water, bare soil, and grass.
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences,1948,193(1032):120-145
|
被引
282
次
|
|
|
|
5.
Brown K W. Aresistance model to predict evapotranspiration and its application to a sugar beet field.
Agronomy Journal,1973,65:199-209
|
被引
29
次
|
|
|
|
6.
张仁华. 以微分热惯量为基础的地表蒸发全遥感信息模型及在甘肃沙坡头地区的验证.
中国科学(D辑),2002,32(12):1041-1051
|
被引
29
次
|
|
|
|
7.
Bastiaanssen W G. A remote sensing surface energy balance algorithm for land (SEBAL). 1. Formulation.
Journal of Hydrology,1998,212/213:198-212
|
被引
206
次
|
|
|
|
8.
Su Z. The Surface energy balance system (SEBS) for estimation of turbulent fluxes.
Hydrology and Earth System Sciences,2002,6(1):85-99
|
被引
180
次
|
|
|
|
9.
何延波. 遥感数据支持下不同地表覆盖的区域蒸散.
应用生态学报,2007,18(2):288-296
|
被引
26
次
|
|
|
|
10.
高彦春. 遥感蒸散发模型研究进展.
遥感学报,2008,12(3):515-528
|
被引
52
次
|
|
|
|
11.
陆桂华. 大范围旱情监测技术.
水利水电技术,2003,34(4):44-46
|
被引
6
次
|
|
|
|
12.
辛晓洲. 地表蒸散定量遥感的研究进展.
遥感学报,2003,7(3):233-240
|
被引
46
次
|
|
|
|
13.
Shuttleworth W J. The theoretical relationship between foliage temperature and canopy resistance in sparse crops.
Quart J Roy Meteorol. Soc,1990,116(492):497-519
|
被引
44
次
|
|
|
|
14.
Norman J M. Source approach for estimating soil and vegetation energy fluxes in observations of directional radiometric surface temperature.
Agricultural and Forest Meteorology,1995,77(3/4):263-293
|
被引
101
次
|
|
|
|
15.
Kustas W P. A two-source approach for estimating turbulent fluxes using multiple angle thermal infrared observations.
Water Resources Research,1997,33(6):1495-1508
|
被引
6
次
|
|
|
|
16.
刘振华. MODIS卫星数据地表反照率反演的简化模式.
遥感技术与应用,2004,19(6):508-511
|
被引
8
次
|
|
|
|
17.
Morse A.
Application of the SEBAL methodology for estimating consumptive use of water and streamflow depletion in the bear river basin of idaho through remote rensing,2000
|
被引
13
次
|
|
|
|
18.
Bastiaanssen W G M.
Regionalization of surface flux densities and moisture indicators in composite terrain, a remote sensing approach under clear skies in Mediterranean climates,1995
|
被引
1
次
|
|
|
|
19.
Shuttleworth W J. Evaporation from sparse crops-an energy combination theory.
Quarterly journal of the royal meteorological society,1985,111(469):839-855
|
被引
168
次
|
|
|
|
20.
杜嘉. 三江平原主要生态类型耗水分析和水分盈亏状况研究.
水利学报,2010,41(2):155-163
|
被引
16
次
|
|
|
|
|