A strategy for controlling error of distributed environmental models by aggregation

被引:28
作者
Van Rompaey, AJJ [1 ]
Govers, G [1 ]
Baudet, M [1 ]
机构
[1] Catholic Univ Louvain, Lab Expt Geomorphol, B-3000 Louvain, Belgium
关键词
D O I
10.1080/136588199241120
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper a strategy for controlling error when calculating model parameter values from low-resolution low-accuracy data (LRLA-data) is presented. The basic principle of the proposed strategy is that the error in the model output can be reduced by output aggregation. By comparing the output from LRLA input data and high-resolution, high-accuracy input data (HRHA-data) at various aggregation levels, the error due to a decrease in accuracy and resolution of the input data can be assessed. An aggregation level can then be chosen so that an output is generated with the desired level of error and sufficient spatial detail. The method may also be used to evaluate the information loss when simplified models are used. The calculation of the topographic factors in an erosion model is taken here as an example application.
引用
收藏
页码:577 / 590
页数:14
相关论文
共 22 条
[1]  
De Jong S.M., 1994, NETHERLANDS GEOGRAPH, V177
[2]  
Desmet PJJ, 1996, J SOIL WATER CONSERV, V51, P427
[3]  
Desmet PJJ, 1996, INT J GEOGR INF SYST, V10, P311, DOI 10.1080/026937996138061
[4]  
Jager S., 1994, Conserving soil resources: European perspectives. Selected papers from the First International Congress of the European Society for Soil Conservation., P161
[5]  
Kirkby MJ, 1967, B INT ASSOC SCI HYDR, V12, P5, DOI [10.1080/02626666709493533., DOI 10.1080/02626666709493533, 10.1080/02626666709493533]
[6]  
Mark D. M., 1986, Proceedings of Auto Carto London. International Conference on the Acquisition, Management and Presentation of Spatial Data, P517
[7]  
MCCOOL DK, 1987, T ASAE, V30, P1387
[8]  
Morgan RPC, 1998, EARTH SURF PROC LAND, V23, P527, DOI 10.1002/(SICI)1096-9837(199806)23:6&lt
[9]  
527::AID-ESP868&gt
[10]  
3.0.CO