A Comparison between WCS and OPeNDAP for Making Model Results and Data Products Available through the Internet

作     者：Baart, Fedor de Boer, Gerben de Haas, Wim Donchyts, Gennadii Philippart, Marc van Koningsveld, Mark Plieger, Maarten 

作者机构：Delft Univ Technol Fac Civil Engn & Geosci Delft Netherlands Deltares Delft Netherlands Minist Infrastruct & Environm The Hague Netherlands Van Oord Dredging & Marine Contractors Rotterdam Netherlands Royal Netherlands Meteorol Inst The Bilt Netherlands 

出 版 物：《TRANSACTIONS IN GIS》 (地理信息系统汇刊)

年 卷 期：2012年第16卷第2期

页      面：249-265页

核心收录：

学科分类：07[理学] 0705[理学-地理学] 

主　　题：NUMERICAL analysis OPEN source software COMPUTER algorithms GEOGRAPHIC information systems DATA analysis DATA libraries 

摘      要：Numerical models produce output with a large number of variables, grid cells and time steps. The same applies to algorithms that produce gridded datasets from sparse or abundant raw data. Further use of the resulting data products has been challenging, especially for dissemination outside the institute of origin. Due to the gradually increasing size of data products, simply downloading copies of them is becoming impossible. A gradual transition from traditional download methods to web services is therefore observed. Web services allow for on-the-fly access to subsets of data that were hitherto considered as indivisible granules. Here we compare the most mature candidates to serve gridded data through the web: the Open-source Project for a Network Data Access Protocol (OPeNDAP) and Web Coverage Service (WCS) protocols. In the framework of the new Dutch National Model and Data Centre (***) a distributed data storage has been created by coupling OPeNDAP servers. A WCS service layer is provided for the same data. This allows us to compare OPeNDAP and WCS. Using several use cases, we compare the usability, performance and features of the two protocols.