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In recent years, a number of data structures for global geo-referenced data sets have been proposed based on regular, multi-resolution partitions of polyhedra. We present a survey of the most promising of such systems, which we call Geodesic Discrete Global Grid Systems (Geodesic DGGSs). We show that Geodesic DGGS alternatives can be constructed by(More)
Scenarios are possible future states of the world that represent alternative plausible conditions under different assumptions. Often, scenarios are developed in a context relevant to stakeholders involved in their applications since the evaluation of scenario outcomes and implications can enhance decision-making activities. This paper reviews the(More)
We develop an integrated model to predict private land-use decisions in response to policy incentives designed to increase the provision of carbon sequestration and species conservation across heterogeneous landscapes. Using data from the Willamette Basin, Oregon, we compare the provision of carbon sequestration and species conservation under five simple(More)
Synopsis Scenario analysis is a process of evaluating possible future events through the consideration of alternative plausible (though not equally likely) outcomes (scenarios). The analysis is designed to enable improved decision-making and assessment through a more rigorous evaluation of possible outcomes and their implications. For environmental impact(More)
Efficiency frontier Land use Tradeoffs Terrestrial vertebrates Survival probability A B S T R A C T Expanding human population and economic growth have led to large-scale conversion of natural habitat to human-dominated landscapes with consequent large-scale declines in biodiversity. Conserving biodiversity, while at the same time meeting expanding human(More)
The ODYSSEY system included a processor to perform polygon overlay and related functions of planar enforcement. The existence of this algorithm was reported in a number of publications as the work progressed but the details of the actual algorithm and data structures were not reported for institutional reasons (Chrisman, 1988). The original authors of the(More)
A new class of spatial data structures called discrete global grid systems (DGGS's) is introduced and the general application classes for it are discussed. DGGS's based on subdivisions of the platonic solids, called Geodesic DGGS's, are then introduced. A number of existing and proposed Geode-sic DGGS's are examined by looking at four design choices that(More)
In recent years a number of methods have been developed for subdividing the surface of the earth to meet the needs of applications in dynamic modeling, survey sampling, and information storage and display. One set of methods uses the surfaces of Platonic solids, or regular polyhedra, as approximations to the surface of the earth. Diamond partitions are(More)