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GRASS and GIS
Online Soil Survey Questions (3)
Accessing Butte Area Soil Survey
Accessing Soil Attribute Data
Searching by APNs?
Online Soil Survey Feature Request (1)
APN search
Working with SSURGO Data
Research Sites
ANR (50)
HREC (1)
1953 Hopland Field Station Soil Survey
SFREC (49)
Hydrologic Modeling in Oak Woodland Soilscapes
Alexandre Swarowsky
Conversion of Sample Plot Boundaries to Points
Conversion of Sampling Blocks to GPS Waypoints
Processing Transect Data
Terrain Skeleton
Regions of like SD(elevation)
Elevation standard deviation classes
Interpolated elevation map from Garmin 120 track logs
Location of Garmin track points
Lewis 1 RTK Sampling Plan
MAE vs. Thinning radius
Angle Map
Percent of visible terrain obscuring the sky above 10 degrees
Flowpaths
Terrain Skeleton 3D
Flow meter - SFREC
Regions of like SD(elevation)
Establishing the Optimal Number of Survey Points
Estimates of Local Sky Obstruction (Regions of Problematic GPS Reception)
Vertical Precision
Regions with low point coverage
Selection by Minimizing MAE (mean absolute error)
Preliminary Watershed Walk
RTK base station setup
Canopy Quantification via Image Classification
Draft SFREC elevation model
Elevation Survey by RTK
Generation of Vegetation Sampling Areas
CIMIS Status
Lewis Watershed Pedons: Percent Carbon 1
Lewis Watershed Pedons: Percent Carbon 2
Estimated Ann. Beam Radiance
Estimated Canopy Cover
Preliminary Soil Characterization Data
SFREC
Optimal Datalogger Route
Optimal Route in 3D
Traveling Salesman Approach to Visiting Data-loggers
Scaling Soil Survey
MFD Accumulation Map-1
Characterization of Terrain Shape, Microclimate, and Canopy Cover
SFREC-terrain_classification_001
SFREC-terrain_classification_002
SFREC-terrain_classification_003
Terrain Classification Experiments
SFREC-terrain_classification_004
SFREC Soil Profile Examples
AQP Examples: Profile Visualization
NPS (23)
PINN (23)
Insolation Time Experiments
Geologic-Scale Erosion
Restored 1933 Geologic Map of Pinnacles
Computing terrain-specific slope classes by region
Pedon Data collection and entry graphs
Some panoramic pictures
Sample location density: visualization examples
Soil Properties by Parent Material and Rock Type
GRASS and POVRAY
Terrain Classification Ideas: Coupling GRASS and R
Pedon Sampling: Status and Future Planning
Accessing PINN Soils Data in Google Earth
Converting GRASS vectors from 2D into 3D: v.drape
Visual Comparison of 2 Raster Images
Finding pockets of soil between the Pinnacles
Online Interface to PINN Soils data
Total C and N Under Oak vs. Buckwheat
Islands of Fertility: Differences in Bulk Density
Islands of Fertility: Sample Sites
Islands of Fertility: Oak Tree vs. Buckwheat Savannah Soils
Soil Color Ideas
Pinnacles National Monument
Images from Pinnacles Soil Profile Analysis
PORE
SJER (32)
Typical Landscape in Spring
SJER Detailed Soil Survey
Preliminary 1 meter DEM in RU 5-1
SJER RU 5-1 Estimated Soil Series Map
Select Range Units
San Joaquin Experimental Range (SJER)
Sensor installation at SJER 5-1
Sensor installation at SJER 5-1 detail
SJER Data Logger Housing
Trees in SJER RU 5-1
Sensor Installation
Decomposition of NAIP Imagery by PCA
CIMIS Status
Preliminary Survey
RU 5-1: Sampling by Compact Regions
RU 5-1: Sampling by Variance Quad Tree
RU 5-1: Sampling by 3ha Basins
RU 5-1: Sampling by Estimated Landscape Postition
RU 5-1: Sampling by Approximate Annual Solar Radiation Load
Site Selection Ideas
Topographic Survey
Flowline Density
SJER Sensor Installation
Scaling Soil Survey
SJER-terrain_classification_001
SJER-terrain_classification_002
Terrain Classification Experiments
Operations in Range Unit 5-1
Numerical Classification of SJER Pedons
Numerical Classification of SJER Pedons: Sammon Mapping
Interesting use of levelplot() for time series data
AQP Examples: Profile Visualization
Tahoe
Wetland 1 (2)
Pelicans at CW1
W1_pan
Wetland 2
Meta-Categories
Digital Soil Mapping (26)
Computing terrain-specific slope classes by region
Sample location density: visualization examples
Using ColorBrewer to assist with thematic map color selection
Pedon Sampling: Status and Future Planning
Finding pockets of soil between the Pinnacles
SJER RU 5-1 Estimated Soil Series Map
San Joaquin Experimental Range (SJER)
Sensor installation at SJER 5-1
Sensor installation at SJER 5-1 detail
Sensor Installation
Generation of Sample Site Locations [sp package for R]
Scaling Soil Survey
Main Characterization and Monitoring Sites
Terrain Classification Experiments
New Technologies in Soil Survey
GIS and Digital Soil Survey Projects
Other Information
Soil Web
Geographic Nutrient Management Zones for Winegrape Production
Rangeland Soil Management and Hydrology
Pedology and Soil Survey
Soil Profile Dendrogram
Soil Depth Mapping at KREW
Soil Depth Mapping at KREW 2
Using R and r.mapcalc (GRASS) to Estimate Mean Topographic Curvature
New R Package 'aqp': Algorithms for Quantitative Pedology [updates]
Down-Scaling (3)
Site Selection Ideas
Scaling Soil Survey
Main Characterization and Monitoring Sites
Online Soil Survey (30)
Major updates to CA, AZ, NV online soil survey system
Load Soil-Web tiles into GRASS
Migrating to Ka-Map! Online Soil Survey for AZ, CA and NV
Case Study: Fixing Bad TIGER Line data with R and PostGIS
Soil-Web Graphical Component List
Dynamic Export of Soil Survey Data to KML through Soil-Web
Online Interface to PINN Soils data
Streaming Soil Survey Data in Google Earth (updates)
Online Soil Survey (D.E. Beaudette and A.T. O'Geen)
SoilWeb Google Earth Access
New Technologies in Soil Survey
GIS and Digital Soil Survey Projects
Other Information
Soil Web
Geographic Nutrient Management Zones for Winegrape Production
Rangeland Soil Management and Hydrology
Pedology and Soil Survey
Estimated Net Worth of SoilWeb- Our Online Soil Survey
iPhone App Screenshot
Soil Profiles in Color
Soil Texture KMZ
SoilWeb iPhone App: Beta-Testers?
Updated SoilWeb for the iPhone + Alpha Android Version
Google Earth Access Trends: Daily Requests
Mobile SoilWeb Access Trends: No. Requests per Week
Google Earth Access Trends: Spatial Density
SoilWeb: An Online Soil Survey Browser
Three New Soils-Related KMZ Demos
Profile water storage as calculated from SSURGO
SoilWeb for the iPhone
Soil Survey (47)
Identifying the Largest Components
PedLogic: An open-source, customizable pedon management system.
1953 Hopland Field Station Soil Survey
SJER Detailed Soil Survey
Soil-Web Graphical Component List
Seasonally Wet Soils and Shrink-Swell Potential
Yolo County Common Soil Textures
Soil Texture Example
San Joaquin Experimental Range (SJER)
Sensor installation at SJER 5-1
Sensor installation at SJER 5-1 detail
Sensor Installation
Learning by Example: Common Queries
Evaluation of EEMT as calculated from MAT and MAP
CA NSSL and OSD locations
NSSL and OSD Databases
West Fresno Soil-Landscape-Vegetation Diagram [F. Harradine, 1950]
Islands of Fertility: Sample Sites
RU 5-1: Sampling by Compact Regions
4km Grid of AWC
Scaling Soil Survey
Aggregating Soil Survey Information: Available Water Holding Capacity
Main Characterization and Monitoring Sites
Checking Type Locations
Western Fresno Soil Hierarchy
Making Sense of Large Piles of Soils Information: Soil Taxonomy
Compiling Various Sources of Soil Information
Other Information
Soil Web
Geographic Nutrient Management Zones for Winegrape Production
Pedology and Soil Survey
Fresno Area Urban Areas vs Irrigated LCC
Fresno Area Urban Areas vs Irrigated LCC (2085)
Potential Loss of Arable Land in the Central San Joaquin Valley, CA
Aggregating SSURGO Data in R
iPhone App Screenshot
Soil Texture KMZ
Getting Parent Material Data out of SSURGO
Updated SoilWeb for the iPhone + Alpha Android Version
Profile Quantiles
1km Grid: Electrical Conductivity
1km Grid: Soil pH
1km Grid: Soil Water Storage
Soil Properties Visualized on a 1km Grid
SoilWeb: An Online Soil Survey Browser
Three New Soils-Related KMZ Demos
SoilWeb for the iPhone
Terrain Analysis (45)
Insolation Time Experiments
Flow path modeling from LiDAR data: initial problems, and some solutions.
GRASS and POVRAY
Terrain Classification Ideas: Coupling GRASS and R
Flowpaths
Terrain Skeleton 3D
Regions of like SD(elevation)
Vertical Precision
Regions with low point coverage
Selection by Minimizing MAE (mean absolute error)
Draft SFREC elevation model
Preliminary 1 meter DEM in RU 5-1
SJER RU 5-1 Estimated Soil Series Map
San Joaquin Experimental Range (SJER)
Observation Types
Preliminary Survey
RU 5-1: Sampling by Compact Regions
RU 5-1: Sampling by 3ha Basins
RU 5-1: Sampling by Estimated Landscape Postition
RU 5-1: Sampling by Approximate Annual Solar Radiation Load
Site Selection Ideas
Topographic Survey
Flowline Density
Estimated Ann. Beam Radiance
Traveling Salesman Approach to Visiting Data-loggers
TAPESG: Grid-based Terrain Analysis Software
Pinnacles National Monument
Scaling Soil Survey
MFD Accumulation Map-1
Characterization of Terrain Shape, Microclimate, and Canopy Cover
SFREC-terrain_classification_001
SFREC-terrain_classification_002
SJER-terrain_classification_001
SJER-terrain_classification_002
Terrain Classification Experiments
Main Characterization and Monitoring Sites
SFREC-terrain_classification_003
Terrain Classification Experiments
SFREC-terrain_classification_004
Other Information
Rangeland Soil Management and Hydrology
Soil Depth Mapping at KREW
Soil Depth Mapping at KREW 2
Elevation surface (left) and resulting mean curvature estimate (right)
Using R and r.mapcalc (GRASS) to Estimate Mean Topographic Curvature
Up-Scaling (10)
4km Grid of AWC
Scaling Soil Survey
Aggregating Soil Survey Information: Available Water Holding Capacity
Soil Texture KMZ
Aggregate Profiles
1km Grid: Electrical Conductivity
1km Grid: Soil pH
1km Grid: Soil Water Storage
Soil Properties Visualized on a 1km Grid
Three New Soils-Related KMZ Demos
Visualization of Soil Properties (25)
Additional Example Using Lattice Graphics
Accessing PINN Soils Data in Google Earth
Convert Munsell colors to computer-friendly RGB triplets
Soil-Veg: C vs. Depth1
Soil-Veg: C vs. Depth 2
Soil-Veg: C vs. Depth 3
Islands of Fertility: Oak Tree vs. Buckwheat Savannah Soils
Lewis Watershed Pedons: Percent Carbon 1
Lewis Watershed Pedons: Percent Carbon 2
Soil Color Ideas
Images from Pinnacles Soil Profile Analysis
Additive Time Series Decomposition in R: Soil Moisture and Temperature Data
Other Information
Soil Profile Dendrogram
Interesting use of levelplot() for time series data
Soil Texture KMZ
New R Package 'aqp': Algorithms for Quantitative Pedology [updates]
Profile Quantiles
Aggregate Profiles
Soil Properties Visualized on a 1km Grid
AQP Examples: Profile Visualization
Subgroups from California
Subgroups from the lower 48 states
A Visualization of Soil Taxonomy Down to the Subgroup Level
Updates to the 'aqp' Package for R (version 0.98-3)
Wetland Research (2)
Personal Page: Jonathan Maynard
BMP's for Irrigated Agriculture
Glossary
Image Galleries
Ione Formation (6)
Landscape on the Ione formation.
Landscape near the Ione Formation.
Ped features from the Ione soil.
Soil Profile
Roadcut
Exposed surface
PINN (15)
Generalized Slope Class Maps: DEM vs. Field Slope
Generalized Slope Class Maps: DEM Slope Class vs. Field Slope
Adding GRASS vectors to POVRAY Scenes: v.out.pov
Over PINN: Geomorphic Features
PINN Topo-map with POVRAY
View of Mt. Defiance from Bear Valley. 2 meter true color
GRASS Example Image: 3D Visualization of Data
View of Mt. Defiance from Bear Valley
Sample Location Density - v.kernel function detail
McCabe Canyon and Temblor Formation
View of the Pinnacles and pockets of soil
Pinnacles Soil Colors in LUV Space
Pinnacles Soil Color Map 1
Pinnacles Soil Color Map 2
Pinnacles Soil Color Clustering Idea 1
SSC105 (2)
SSC 105 image
SSC105-2006
SSC105-2006
Wetland Pics (4)
Constructed Wetland 1
Redoximorphic Features
Excavating Sediment Plate
Pelicans at CW1
Internal
How-to (10)
Code highlighting examples
Exporting Track Data from Lab Trimble GPS
Lab Calendar
Working with Garmin GPS Units and Data
Canopy Quantification via Image Classification
Generation of Vegetation Sampling Areas
Ordinary Kriging Example: R via text file
Logistics: Getting Connected and Executing Queries
Ordinary Kriging Example: GRASS-R Bindings
Lab Chromameter (CR-410) SOP
Soil Science
clay minearals (9)
Example XRD plot with lattice graphics
Example XRD plot 2
Some ideas on annotating common d-spacings
Two-page display of XRD data for an entire soil profile
Multi-horizon XRD sample plot 1
Multi-horizon XRD sample plot 2
Quick trip to the Ione formation
Plotting XRD (X-Ray Diffraction) Data
Numerical Integration/Differentiation in R: FTIR Spectra
geomorphology (14)
Sutter Buttes
Sample profile creation I
Sample profile creation III
Glacial Outwash Deposits in the Central San Joaquin Valley
Terrain Skeleton
Regions of like SD(elevation)
Terrain Skeleton 3D
Sample profile creation II
Elevation Survey by RTK
San Joaquin Experimental Range (SJER)
Scaling Soil Survey
Geographic Nutrient Management Zones for Winegrape Production
BMP's for Irrigated Agriculture
Pedology and Soil Survey
landscape (41)
Sample profile creation I
Sample profile creation III
Some panoramic pictures
Glacial Outwash Deposits in the Central San Joaquin Valley
Quick trip to the Ione formation
1953 Hopland Field Station Soil Survey
Terrain Skeleton
Regions of like SD(elevation)
Location of Garmin track points
Flowpaths
Terrain Skeleton 3D
Sample profile creation II
Estimates of Local Sky Obstruction (Regions of Problematic GPS Reception)
Vertical Precision
Regions with low point coverage
Preliminary Watershed Walk
Draft SFREC elevation model
Elevation Survey by RTK
San Joaquin Experimental Range (SJER)
Observation Types
Sensor installation at SJER 5-1
Sensor installation at SJER 5-1 detail
Streaming Soil Survey Data in Google Earth (updates)
Sensor Installation
Preliminary Survey
RU 5-1: Sampling by Compact Regions
RU 5-1: Sampling by Estimated Landscape Postition
Site Selection Ideas
Flowline Density
SJER Sensor Installation
Scaling Soil Survey
Characterization of Terrain Shape, Microclimate, and Canopy Cover
Main Characterization and Monitoring Sites
SFREC-terrain_classification_003
SFREC-terrain_classification_004
Geographic Nutrient Management Zones for Winegrape Production
BMP's for Irrigated Agriculture
Rangeland Soil Management and Hydrology
Pedology and Soil Survey
Using R and r.mapcalc (GRASS) to Estimate Mean Topographic Curvature
AQP Examples: Profile Visualization
mineralogy (17)
Example XRD plot with lattice graphics
Example XRD plot 2
Some ideas on annotating common d-spacings
Two-page display of XRD data for an entire soil profile
Multi-horizon XRD sample plot 1
Multi-horizon XRD sample plot 2
Glacial Outwash Deposits in the Central San Joaquin Valley
Donald G. McGahan Ph.D.
Quick trip to the Ione formation
Seasonally Wet Soils and Shrink-Swell Potential
Plotting XRD (X-Ray Diffraction) Data
Numerical Integration/Differentiation in R: FTIR Spectra
Val's Page
asbestos (4)
Donald G. McGahan Ph.D.
Val's Page
NOA (naturally occuring asbestos) (2)
Donald G. McGahan Ph.D.
Val's Page
pedon data (55)
Map of inter-pedon, slope-wieghted cost of reaching an unsampled location in the park
Spring sampling mission points revision 1
Soil Properties by Parent Material and Rock Type
Access Data Stored in a Postgresql Database
Soil Veg Proofing Application
Making Soil Property vs. Depth Plots
Depth Profile Example 1
Depth Profile Example 2
Additional Example Using Lattice Graphics
Example XRD plot with lattice graphics
Example XRD plot 2
Some ideas on annotating common d-spacings
Two-page display of XRD data for an entire soil profile
Multi-horizon XRD sample plot 1
Multi-horizon XRD sample plot 2
PedLogic: An open-source, customizable pedon management system.
Pedon Sampling: Status and Future Planning
Pinnacles Soil Colors in LUV Space
Pinnacles Soil Color Map 1
Pinnacles Soil Color Map 2
Pinnacles Soil Color Clustering Idea 1
Quick trip to the Ione formation
San Joaquin Experimental Range (SJER)
Sensor Installation
Data Summaries
Generation of Sample Site Locations [sp package for R]
Soil-Veg: C vs. Depth1
Soil-Veg: C vs. Depth 2
Soil-Veg: C vs. Depth 3
Total C and N Under Oak vs. Buckwheat
Islands of Fertility: Sample Sites
Islands of Fertility: Oak Tree vs. Buckwheat Savannah Soils
Lewis Watershed Pedons: Percent Carbon 1
Lewis Watershed Pedons: Percent Carbon 2
SJER Sensor Installation
Soil Color Ideas
Plotting XRD (X-Ray Diffraction) Data
Numerical Classification of SJER Pedons
Numerical Classification of SJER Pedons: Sammon Mapping
Main Characterization and Monitoring Sites
Checking Type Locations
Compiling Various Sources of Soil Information
Pedology and Soil Survey
Interesting use of levelplot() for time series data
Estimating Missing Data with aregImpute() {R}
New R Package 'aqp': Algorithms for Quantitative Pedology [updates]
Profile Quantiles
Aggregate Profiles
AQP Examples: Profile Visualization
Updates to the 'aqp' Package for R (version 0.98-3)
soil chemistry (6)
Fraction Collector 3
Fraction Collector 4
Fraction Collector 1
Fraction Collector 2
Fraction Collector
Numerical Integration/Differentiation in R: FTIR Spectra
soil color (10)
Pinnacles Soil Colors in LUV Space
Pinnacles Soil Color Map 1
Pinnacles Soil Color Map 2
Pinnacles Soil Color Clustering Idea 1
Example Color Book Page
Soil color conversion: LUV colorspace
Convert Munsell colors to computer-friendly RGB triplets
Soil Color Ideas
Lab Chromameter (CR-410) SOP
Updated Munsell Conversion Example
soil profile (41)
PINN Data in GE 1
PINN Data in GE 2
Soil Veg Example Scan
Interactive Identification of Data Regions
Automated Chunking of Soil Veg Chemical Data
Soil Veg Proofing Application
Making Soil Property vs. Depth Plots
Depth Profile Example 1
Depth Profile Example 2
Additional Example Using Lattice Graphics
Example XRD plot with lattice graphics
Example XRD plot 2
Some ideas on annotating common d-spacings
Two-page display of XRD data for an entire soil profile
Multi-horizon XRD sample plot 1
Multi-horizon XRD sample plot 2
Dylan in Mojave
PedLogic: An open-source, customizable pedon management system.
Glacial Outwash Deposits in the Central San Joaquin Valley
Pinnacles Soil Colors in LUV Space
Pinnacles Soil Color Map 1
Pinnacles Soil Color Map 2
Pinnacles Soil Color Clustering Idea 1
Quick trip to the Ione formation
Soil-Web Graphical Component List
Playing with sparklines
Data Summaries
Islands of Fertility: Differences in Bulk Density
Lewis Watershed Pedons: Percent Carbon 2
Soil Color Ideas
4km Grid of AWC
Plotting XRD (X-Ray Diffraction) Data
Numerical Classification of SJER Pedons
Numerical Classification of SJER Pedons: Sammon Mapping
Compiling Various Sources of Soil Information
Pedology and Soil Survey
Lab Chromameter (CR-410) SOP
Updated SoilWeb for the iPhone + Alpha Android Version
New R Package 'aqp': Algorithms for Quantitative Pedology [updates]
AQP Examples: Profile Visualization
Updates to the 'aqp' Package for R (version 0.98-3)
Soil Taxonomy (9)
Western Fresno Soil Hierarchy 1
Western Fresno Soil Hierarchy
Making Sense of Large Piles of Soils Information: Soil Taxonomy
Soil Web
Pedology and Soil Survey
An XML Representation of the Keys to Soil Taxonomy?
Subgroups from California
Subgroups from the lower 48 states
A Visualization of Soil Taxonomy Down to the Subgroup Level
Soil Survey Related
SSURGO (20)
Searching by APNs?
APN search
Identifying the Largest Components
Dynamic Export of Soil Survey Data to KML through Soil-Web
Seasonally Wet Soils and Shrink-Swell Potential
Soil Texture Example
Learning by Example: Common Queries
Evaluation of EEMT as calculated from MAT and MAP
Scaling Soil Survey
Checking Type Locations
PostGIS: Spatially enabled Relational Database Sytem
Potential Loss of Arable Land in the Central San Joaquin Valley, CA
Aggregating SSURGO Data in R
Getting Parent Material Data out of SSURGO
Updated SoilWeb for the iPhone + Alpha Android Version
Soil Properties Visualized on a 1km Grid
A Visualization of Soil Taxonomy Down to the Subgroup Level
Three New Soils-Related KMZ Demos
Profile water storage as calculated from SSURGO
SoilWeb for the iPhone
STATSGO (2)
Scaling Soil Survey
Soil Properties Visualized on a 1km Grid
Non-Soils Related
LaTeX (10)
Math Equation in OpenOffice/StarOffice
StarOffice/OpenOffice Math Equations to MS Word, PDF, LaTeX, and XHTML (FAILURES)
Sparkline LATEX Test
Example of table produced with ctable
Making better looking tables with \ctable
Latex to ODT conversion tips
Customizing BibTeX
Playing with sparklines
link on PostgreSQL instalation
LaTeX Tips and Tricks
Open Source GIS and Mapping Ideas (77)
Higher Order Transformations
Raster aggregation ideas: GRASS and StarSpan [updated]
Finding pockets of soil between the Pinnacles
Point-process modelling with the sp and spatstat packages
Case Study: Fixing Bad TIGER Line data with R and PostGIS
Generic GRASS-GMT Plotting System
Seasonally Wet Soils and Shrink-Swell Potential
PRISM Monthly Precip - USA
PRISM Monthly Precip - CA
Batch Projection and Masking with GRASS
Online Soil Survey (D.E. Beaudette and A.T. O'Geen)
Importing and Exporting
Exporting GRASS Raster Data to ArcGIS
Detailed Magnetic Declination
Ordinary Kriging Example: R via text file
Identification of Dated Surfaces via Soil Series
Optimal Datalogger Route
Optimal Route in 3D
Traveling Salesman Approach to Visiting Data-loggers
Simple Comparision of Two Least-Cost Path Approaches
Experiments with Yolo County Groundwater Data
Ordinary Kriging Example: GRASS-R Bindings
Simple Python Interface to USGS TNM Elevation Service
Generic Mapping Tools: high quality map production
Simple Approach to Converting GRASS DB-backends
PostGIS: Spatially enabled Relational Database Sytem
Aggregating SSURGO Data in R
Un-Wrapping a Sphere with R
R - spgrass6 install
Estimated Net Worth of SoilWeb- Our Online Soil Survey
iPhone App Screenshot
Interesting use of levelplot() for time series data
Soil Texture KMZ
SoilWeb iPhone App: Beta-Testers?
Visual Interpretation of Principal Coordinates (of) Neighbor Matrices (PCNM)
Accessing Climate Change Data and a Custom Panel Function for Filled Polygons
SQLite as an alternative to shapefiles, and some GPS fun in R
Getting Parent Material Data out of SSURGO
Using R and r.mapcalc (GRASS) to Estimate Mean Topographic Curvature
Example map produced with ps.map
GRASS Can Make Pretty Maps
1km Grid: Electrical Conductivity
1km Grid: Soil pH
Soil Properties Visualized on a 1km Grid
AQP Examples: Profile Visualization
Google Earth Access Trends: Daily Requests
SoilWeb: An Online Soil Survey Browser
Three New Soils-Related KMZ Demos
Profile water storage as calculated from SSURGO
Customizing Maps in R: spplot() and latticeExtra functions
person
Alexandre (19)
Alexandre Swarowsky
Processing Transect Data
Establishing the Optimal Number of Survey Points
Elevation Survey by RTK
Sensor Installation
How to import adress book from Thunderbird to Evolution
small note on cleaning up on linux
Instaling kwrite on Ubunut Gusty
Installing R packages
problems with root login - su
link on PostgreSQL instalation
link on conecting R to PostgreSQL
fix on opening .r extensions with nautilus on Ubuntu gusty
working with aliases
babylon and stardict
SFREC
Scaling Soil Survey
Characterization of Terrain Shape, Microclimate, and Canopy Cover
R - spgrass6 install
DiG (2)
Donald G. McGahan Ph.D.
googlepages
Dylan (145)
SFREC
Simple Comparision of Two Least-Cost Path Approaches
Python Image Module Example: How much ink on that page?
Soil Color Ideas
Pinnacles National Monument
Some Interesting Links
Experiments with Yolo County Groundwater Data
Ordinary Kriging Example: GRASS-R Bindings
Some Ideas on Interpolation of Categorical Data
Scaling Soil Survey
Simple Python Interface to USGS TNM Elevation Service
Aggregating Soil Survey Information: Available Water Holding Capacity
Comparison of Slope and Intercept Terms for Multi-Level Model
Characterization of Terrain Shape, Microclimate, and Canopy Cover
Operations in Range Unit 5-1
Main Characterization and Monitoring Sites
A need for data management courses in higher education
Checking Type Locations
Interesting R Packages
Simple Approach to Converting GRASS DB-backends
Images from Pinnacles Soil Profile Analysis
PostGIS: Spatially enabled Relational Database Sytem
Making Sense of Large Piles of Soils Information: Soil Taxonomy
Additive Time Series Decomposition in R: Soil Moisture and Temperature Data
Compiling Various Sources of Soil Information
Tips on Using the 'sp' classes in R
Aggregating SSURGO Data in R
Un-Wrapping a Sphere with R
Accessing Climate Change Data and a Custom Panel Function for Filled Polygons
Yet Another plyr Example
Comparison of Slope and Intercept Terms for Multi-Level Model II: Using Contrasts
Estimating Missing Data with aregImpute() {R}
CIMIS Data Processing Ideas
Getting Parent Material Data out of SSURGO
An XML Representation of the Keys to Soil Taxonomy?
PostGIS in Action Book Review
R's Normal Distribution Functions: rnorm and pals
Spatial Clustering of Point Data: Spearfish Example
Updated SoilWeb for the iPhone + Alpha Android Version
Using R and r.mapcalc (GRASS) to Estimate Mean Topographic Curvature
New R Package 'aqp': Algorithms for Quantitative Pedology [updates]
Soil Properties Visualized on a 1km Grid
AQP Examples: Profile Visualization
SoilWeb: An Online Soil Survey Browser
Updates to the 'aqp' Package for R (version 0.98-3)
Profile water storage as calculated from SSURGO
Analysis of SSURGO Data in PostGIS: An Overview
Customizing Maps in R: spplot() and latticeExtra functions
Temporal Trends in Soil Science Jargon -- via Google Ngram Viewer
Dylan E. Beaudette
Jon (2)
Water Quality
Personal Page: Jonathan Maynard
Kevin
Neil
Toby (1)
SoilWeb: An Online Soil Survey Browser
Tony (5)
Conversion of Sampling Blocks to GPS Waypoints
Processing Transect Data
Establishing the Optimal Number of Survey Points
Preliminary Watershed Walk
SFREC
Val