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- Projects
- BMP's for Irrigated Agriculture
- Pedology and Soil Survey
- Geographic Nutrient Management Zones for Winegrape Production
- GIS and Digital Soil Survey Projects
- New Technologies in Soil Survey
- Other Information
- Pinnacles National Monument
- Accessing PINN Soils Data in Google Earth
- Computing terrain-specific slope classes by region
- Finding pockets of soil between the Pinnacles
- Images from Pinnacles Soil Profile Analysis
- Islands of Fertility: Oak Tree vs. Buckwheat Savannah Soils
- Pedon Data collection and entry graphs
- Restored 1933 Geologic Map of Pinnacles
- Soil Color Ideas
- Soil Properties by Parent Material and Rock Type
- Some panoramic pictures
- Terrain Classification Experiment 2: GRASS, R, and the raster package
- Insolation Time Experiments
- Pinnacles National Monument
- Rangeland Soil Management and Hydrology
- Watershed-scale Hydropedology
- Hydrologic Modeling in Oak Woodland Soilscapes
- Watershed-scale Hydropedology
- Software
- General Purpose Programming with Scripting Languages
- LaTeX Tips and Tricks
- PostGIS: Spatially enabled Relational Database Sytem
- Importing and Exporting
- Example Spatial SQL Operations on Point, Line and Polygon Geometry Types
- Affine Transformation Operations in PostGIS
- Analysis of SSURGO Data in PostGIS: An Overview
- Making Database Diagrams with PostgreSQL Autodoc
- PROJ: forward and reverse geographic projections
- GDAL and OGR: geodata conversion and re-projection tools
- R: advanced statistical package
- Access Data Stored in a Postgresql Database
- Additive Time Series Decomposition in R: Soil Moisture and Temperature Data
- Aggregating SSURGO Data in R
- Cluster Analysis 1: finding groups in a randomly generated 2-dimensional dataset
- Color Functions
- Comparison of Slope and Intercept Terms for Multi-Level Model
- Comparison of Slope and Intercept Terms for Multi-Level Model II: Using Contrasts
- Creating a Custom Panel Function (R - Lattice Graphics)
- Customized Scatterplot Ideas
- Estimating Missing Data with aregImpute() {R}
- Exploration of Multivariate Data
- Interactive 3D plots with the rgl package
- Making Soil Property vs. Depth Plots
- Numerical Integration/Differentiation in R: FTIR Spectra
- Plotting XRD (X-Ray Diffraction) Data
- Using lm() and predict() to apply a standard curve to Analytical Data
- Working with Spatial Data
- Converting Alpha-Shapes into SP Objects
- Customizing Maps in R: spplot() and latticeExtra functions
- Generation of Sample Site Locations [sp package for R]
- Ordinary Kriging Example: GRASS-R Bindings
- Point-process modelling with the sp and spatstat packages
- Simple Map Creation
- Some Ideas on Interpolation of Categorical Data
- Target Practice and Spatial Point Process Models
- Visual Interpretation of Principal Coordinates (of) Neighbor Matrices (PCNM)
- Visualizing Random Fields and Select Components of Spatial Autocorrelation
- Comparison of PSA Results: Pipette vs. Laser Granulometer
- GRASS GIS: raster, vector, and imagery analysis
- Generic Mapping Tools: high quality map production
- Links
- Blog
California Soil Resource Lab. Metro Cluster. All rights reserved.