Assessing the worldwide developments of national spatial data clearinghouses

TLDR

National spatial data infrastructures have been debated globally, with clearinghouses seen as essential for data access, yet dissatisfaction and alignment with second‑generation goals reveal challenges. The study aimed to assess worldwide developments of national clearinghouses through a web survey and to recommend shifting from data‑oriented to user‑ and application‑oriented capabilities, emphasizing web services, stable funding, and user‑friendly interfaces. A web survey was conducted in April and December of 2000, 2001, and 2002 to systematically evaluate clearinghouse developments worldwide. The survey found a worldwide success in the number of clearinghouse implementations, but noted concerning declines in use, management, and content.

Abstract

Many countries have spent considerable resources over the past few years debating optimal national spatial data infrastructures. One of the (main) elements of these infrastructures is the national spatial data clearinghouse, which facilitates access to required spatial data and provides complementary services. With this in mind, in April 2000, 2001, 2002 and December 2000, 2001, 2002, a web survey was carried out to assess systematically the developments of these national clearinghouses worldwide. Regarding the development in the number of implementations, it can be considered a worldwide success. However, of concern are the declining trends in use, management and content. One of the main reasons for these negative trends could be the dissatisfaction of the spatial data community with the functional capability of current clearinghouses. The functional capabilities of clearinghouses should likely be changed from a data-oriented to a user and application-oriented focus. This is in accord with the objectives of the second generation of spatial data infrastructures. The main factors, therefore, that will have positive impacts on developments in this field are the inclusion of web services, stability of funding and creation of user-friendly interfaces.