| 1. | The main contents are as follows : ( 1 ) rs method is used for the research of all surface parameters
主要内容如下： ( 1 )各种地表参数遥感模型。 |
| 2. | Surface parameters is retrieved from remote sensing , which is the main connotation of the surface flux retrieved from quantitative remote sensing model
在这些地表通量定量遥感模型中，以遥感信息反演地表参数是其主要的内涵。 |
| 3. | This is because the surface parameters is not only dominant in the reciprocity of earth and atmosphere , but also are closely linked with all aspects of environment
这是因为地表参数不仅在地气相互作用中起着主导作用，而且与环境的各个方面息息相关。 |
| 4. | The extracted values of 3 surface parameters i . e . , the roughness w , lateral correlation length , and roughness exponent a are in good accordance with the set values
所得到三个表面参量粗糙度w ，横向相关长度和粗糙度指数的值与所设定的值符合得较好。 |
| 5. | Through analysing and computing the surface parameter , we have obtained arbitrariness sub - surface parameterised form nearby the extraordinary points , which can quickly efficiently and precisely compute all the sub - surfaces
通过对曲面参数化的分析、计算，得到了特征点附近的任意子面片的参数化格式。 |
| 6. | Especially to gain all kinds of surface parameter , which is urgent affairs to provide a technical support and decision - making gist for a sustainable development to this region
因而，对长江三角洲环境方面展开研究显得尤为迫切。特别是获取长江三角洲各种地表参数，为该区的可持续发展提供决策依据和技术支持，更是当务之急。 |
| 7. | Whereas all above , in this dissertation remote sensing ( rs ) and geographical information system ( gis ) methods are used for the research of surface parameters , regional surface flux and et of the yangtze delta
鉴于以上认识，本文以长江三角洲为研究区利用遥感和地理信息系统对长江三角洲区域地表参数、区域地表通量、区域蒸散进行了研究。 |
| 8. | Hf radar can measure the sea surface parameters . on oceanography , hf radar can be used in researching the property of ocean wave , supervising the sea status timely , getting offshore wind field picture as well
它在海洋学上可用于研究海浪性质，能实时监测海况而服务于航海业、海洋工程、海洋警戒、海洋渔业和海洋平台作业等，还能获取气象预报中所需要的海面风场图。 |
| 9. | ( 2 ) based on gaining the surface parameters , to compare to diversified retrieve model to choose optimal one to retrieve net radiance flux , soil heat flux and latent heat flux , which settle the groundwork to calculate the regional et
在获取地表参数的基础上，反复对比前人各种遥感反演模型，选择最佳模型对长江三角洲的区域净辐射通量、土壤热通量、潜热通量进行了反演，为计算区域蒸散量奠定了基础。 |
| 10. | One avhrr image of the yangtze delta at 13 : 00 on 15th apr . , 2003 is used to retrieve the regional parameter such as surface albedo , ndv1 , surface emissivity and surface temperature , which is based on regional trait of the yangtze delta to choose different model . all above will give a methodological support to gain the regional surface parameters , what ' s more , it will afford the parameter support to calculate the regional et too
选取了2003年4月15日13时的avhrr影像，根据长江三角洲区域特点，选择不同的反演模型，分别对长江三角洲区域地表反照率、归一化植被指数、地表比辐射系数、地表温度进行了反演，为区域地表参数的获取提供了方法支持，也为长江三角洲的区域蒸散量求取提供了参数支持。 |
