Many technical aspects are involved in the upgrading of satellite image databases: geometric registration, resampling, radiometric adjustment, mosaicking. In this paper, after an overview of all problems, we will focus on the automation of image geocoding. A procedure to perform automatic co-registration of satellite images have been already proposed by the authors (GEOREF), based on an image-t...

Information visualizations have become popular tools for extracting knowledge from large bodies of information. Very little is known on the usability of such ‘visual knowledge tools’ for information access. The goal of this paper is to show the usability of the spatial metaphor ‘scale’ to access a large semantic document space. An experiment was conducted to examine whether different user group...

It is often possible to better understand group change over time through examining social network data in a spatial and temporal context. Providing that context from a text analysis perspective requires identifying locations and associating them with people. This paper presents our GeoRef algorithm to automatically do this person-to-place mapping. It involves the identification of location, and...

Introduction Geology involves measurement, calculation and modeling. Everyone would agree that these are mathematical activities. Geology also involves classification. “In geology we tend to classify everything” (Thomas and Thomas, 2000, p. 571). This observation is certainly borne out by the GeoRef database. On 29 June, 2001, a search under the keyword “classification” brought up 60 papers wit...

An exponentially growing volume of digital information makes extraction of relevant items increasingly difficult. This article documents the adoption of information visualization tools by researchers in the disciplines of geography, computer science, and information science to facilitate exploration of very large data archives. Graphic depiction of database content (or the database “semantics”)...

Purpose – This study investigates how often geoscientists use different information sources and how this pattern of source use balances their perceptions of the quality and ease of use of the information sources. Design/methodology/approach – The geoscientists at the Geological Survey of Norway were surveyed about their information-seeking behavior. The response rate was 70%. Findings – The geo...

Global climate change is expected to affect the frequency, intensity and duration of extreme water-related weather events such as excessive precipitation, floods, and drought. We conducted a systematic review to examine waterborne outbreaks following such events and explored their distribution between the different types of extreme water-related weather events. Four medical and meteorological d...

Climate change impacts are associated with dramatic consequences for human health and threaten physical activity (PA) behaviors. The aims of this systematic review were to present the potential bidirectional associations between climate PA behaviors in humans propose a synthesis literature through conceptual model PA. Studies published before October 2020 identified database searches PubMed, Ps...