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Computational methods
Mathematical techniques used to analyze numerical data.
Subtopics:
Image analysis (6 items)
Mathematical modeling (97 items)
Spatial analysis (31 items)
Statistical analysis (21 items)
Topological analysis (1 items)
Visualization methods (5 items)

Results 41 - 50 of 152 listed by similarity [list alphabetically]
Computer simulation of reservoir depletion and oil flow from the Macondo well following the Deepwater Horizon blowout
This model estimates, by simulation, the reservoir pressure, flow rate, and volume of oil discharged, and the report discusses the uncertainty in the estimates.
Costly landslide events in the United States: map layer description file
GIS data set from the USGS National Landslides Hazards Program showing major landslide events in the United States and Puerto Rico with metadata. Map layer can be downloaded in shapefile format or SDTS format.
Data visualization tools used in studies of the upper Mississippi River and nearby areas
Interactive maps and databases showing geospatial, biologic, and ecological aspects of the upper Mississippi River. Includes water quality, fish species, and vegetation distribution as well as geographic reference information.
Datum shifts and digital map coordinate displays
Online GIS training course for users in GIS environments in resolving the differences in distances and coordinate readouts due to shifts in the 1927 and 1983 North American Datums when using Universal Transverse Mercator (UTM) grids.
Decision-support systems for natural-hazards and land-management issues
Three mathematical models using information about the geographic distribution and character of land surface characteristics along with proposed modifications or plausible events to determine the likely costs and benefits of actions and events.
Development of a global slope dataset for estimation of landslide occurrence resulting from earthquakes
Technical description of methods used to generate global slope data from SRTM topography data
Discontinuous nature of kriging digital terrain models
Research exploring the mathematical properties of kriging, a widely-used surface interpolation method. The continuity properties of kriging digital terrain models over a wide range of terrain types helps hydrologists assess the usefulness of kriging for D
Drought and deluge: Effects of recent climate variability on groundwater levels in eastern Arkansas
Water levels in wells completed in the Mississippi River Valley alluvial aquifer and the Sparta aquifer in eastern Arkansas respond to variability associated with annual precipitation.
Drought Monitoring with VegDRI
The Vegetation Drought Response Index is a drought monitoring and mapping tool integrating satellite observations of vegetation and climate with land cover, soil characteristics, and other environmental factors.