...Detailed Table
of Contents (under construction covers only completed
topics, 7/30/99)
(return to Title page) (return to Table
of Contents)

An Overview
of Precision Farming  introduces spatial relationships as the basis of
precision farming
Underlying Principles
 describes the difference between wholefield and sitespecific farming
Unusual Blend of
technologies  introduces the technologies supporting precision farming
Processing
Precision Farming Data  identifies the different levels in precision
farming
Technical Issues 
introduces the four steps of the precision farming process
Current
Reality and Future Directions  looks at the opportunities of
sitespecific management
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The
Precision Farming Primer 


Smart Farmers and Dumb
Maps  identifies differences between descriptive and prescriptive mapping
GIS Quality Data
 describes a field's geographic patterns as an organized set of numbers
Four Basic
Steps in Precision Farming  describes the basic steps of the precision
farming process
Putting Yield in Its
Place  discusses differences in mapping yield as discrete points or
continuous surfaces
Putting Yield in
Its Proper Place  describes the major factors affecting georeferencing
of "raw" yield data
Connecting the Dots 
discusses the implications of point, swath, and grid formats for mapping yield
data
Is Precision
Farming Accurate?  investigates differences between precision and
accuracy
Resolving Yield
Mapping Issues  describes the "accuracy advantage" of grid
formatted data
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Dirty Stuff  presents an overview
of the sampling process
Sampling Patterns
 discusses sampling patterns and their implications
From Points to Maps 
describes important factors common in spatial interpolation
Surf's
Up  discusses procedures and results of IDW, Kriging and MinCurve
interpolation
How Good Is My Map? 
describes the Residual Analysis procedure for assessing interpolation results
A Map of Error  identifies a
procedure for generating maps of error from Residual Analysis
Justifiable Interpolation
 introduces the important concept of spatial dependency
What's It Like
Around Here?  describes the information in a variogram plot of spatial
dependency
Zones and Surfaces 
discusses fundamental differences between Management Zones and Map Surfaces
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The Precision Farming Primer 


The Big Picture  reviews the
basic steps in the precision farming process
Visceral Visions
 visually compares yield map displays
Visualizing Yield Data
 describes the differences between map data and map displays
Back to Basics  reviews
"normal" statistical concepts (mean, median and mode)
Sticks and Stones 
discusses data dispersion measures (standard deviation and coffvar)
Statistically
Summarizing Mapped Data  discusses basic statistics used to describe
mapped data
Assessing Spatial
Dependency  describes a basic procedure for measuring spatial
dependency
Typifying Atypical Data
 discusses "nonnormal" data (skewed and bimodal)
A Standardized Map 
describes a procedure for identifying "unusual" locations in mapped
data
Mapping Localized
Variation  describes a procedure for identifying areas of "high
variability"
Mapping the Rate of
Change  describes a procedure for identifying areas of "rapidly
changing conditions"
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The Precision Farming Primer 


So, Whats the
Difference? discusses differences in information
provided by visual vs. data analysis
Relating Maps introduces basic
concepts used in assessing relationships between maps
Viewing Maps as Data
describes linkages among traditional maps, data distributions and map
surfaces
Data Space: The Next
Frontier introduces the underlying concept a computer uses to
"see" map patterns
Map Similarity
extends the discussion to a computer procedure for assessing map
similarity
Clustering Map Data:
Part I describes how a computer identifies similar "data
zones" within an area
Clustering Map Data:
Part II discusses clustering procedures and interpretation of the
results (in prep)
Prediction Maps: Part I
introduces concepts of spatial correlation and predictive modeling (in prep)
Prediction Maps: Part II
discusses regression procedures and interpretation of the results (in prep)
Comparing Maps describes
two basic approaches in comparing traditional maps
Comparing Map
Surfaces: Part I discusses the use of statistical tests in comparing
mapped data
Comparing Map
Surfaces: Part II describes spatially based approaches to comparing
mapped data
OnFarm Testing investigates
the use of GIS for onfarm studies (in prep)
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What Is GIS?  defines geographic
information systems (GIS)
Data
Formats  describes how "map features" are stored in a GIS
Data
Links  describes how "attribute" information is linked to map
features
Dumb
Maps  discusses "vector" data structure and its implications
Raster Features 
discusses "raster" data structure and its implications
Converting
Between Lines and Squares  identifies procedures for converting
between vector and raster
Workspaces
 discusses overall GIS data organization considerations
More on Spatial Topology
 discusses data structure and its effect on GIS analysis
Data
Pedigree  identifies metadata considerations and levels of data
documentation
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The Precision Farming Primer 


Your Position: Where
Are You? introduces the basic concepts used in geographic referencing
Your
Position: Projecting the Right Image discusses map projection issues
GPS: Basic Stuff
describes how GPS technology works
GPS: Intermediate Stuff
discusses basic factors affecting GPS accuracy
GPS: Advanced Stuff
discusses additional GPS considerations
Remote Sensing: Basic
Stuff introduces basic remote sensing principles as applied to imaging
vegetation
Remote Sensing:
Intermediate Stuff investigates important factors affecting RS
signals from plant canopies
Remote Sensing:
Advanced Stuff discusses how RS data is analyzed using a computer
IDI: Yield Monitors
describes how Yield Monitors work (in prep)
IDI: Variable Rate
Technology describes how Variable Rate Technology works (in prep)
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The Precision Farming Primer 


Part 1. Yield Mapping
Considerations
Yield
Mapping Sparks Precision Farming Success by Neil Havermale
 discusses several factors affecting spatial accuracy in yield mapping
Yield
Monitors Create On and OffFarm Profit Opportunities by Tom Doerge
discusses the benefits of yield monitoring and mapping
Part 2. Investigating Interpolation
Results
Comparing
Interpolated and Extrapolated Data  investigates the relative
performance of spatial interpolation and extrapolation
Normalized Map
Comparisons  compares raw and normalized maps
Defining the Norm 
describes a procedure for normalizing mapped data
Comparing the
Comparable  discusses the importance of comparing normalized maps
Visually
Comparing Normalized Residual Maps  visually compares normalized maps of
Average, IDW, Kriging and MinCurve interpolation results
More on Zones
and Surfaces  discusses the relative variation "explained" by
zone and surface maps
Last Word
on Zones and Surfaces  discusses the effects of "unexplained"
variation in sitespecific management
Excel
Worksheet Investigating Zones and Surfaces  provides access to
Excel worksheets used in the zone and surface discussions
Part 3. More on Spatial Dependency
Spatial
Dependency and Distance  describes a procedure for relating spatial
dependency and distance
Mapping Spatial
Dependency  describes a procedure for mapping localized spatial
dependency
Excel
Worksheets Investigating Spatial Dependency  provides access to Excel
worksheets used in the spatial dependency discussions
Part
4. More on Comparing Maps
Validity
of Statistical Tests with Mapped Data by William Huber
discusses concerns in applying traditional nonspatial techniques to
analyze mapped data (in
prep)
Excel
Worksheet Investigating Map Surface Comparison worksheet containing
the calculations for ttest, percent difference and surface configuration
examples
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The Precision Farming Primer 


Overview
Part 1  General Information
and System Specification
Part 2  Software Installation,
Program Environment, and Documentation/Support
Part 3  Data Handling
Part 4  Map Generation and
Summary
Part 5  General Comments and
Overview Summary
About
 the @gInnovator project
(Back to the Table of Contents)
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