Digital Mapping and Updating Course
Editing Tools Team
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West Texas Telecommunications Project - Field Soil Scientist Toolbox Background for development of requirements for Field Measured Properties - MetadataDraft Requirements for the aggregation of Characterization data into a single database National Cooperative Soil Survey Soil Characterization Data Accessibility - includes edits Metadata is data about data. Metadata can be expressed by table association. (< 2mm fraction) Metadata can be included in the Data Dictionary for a data element. Medium sand = ms = Mineral particles 0.25mm to 0.5mm in equivalent diameter as a weight percentage of the less than 2 mm fraction. Metadata can included as a separate field. EC Method = The method used to measure the electrical conductivity of the soil. Choice list: 1. colormetric 2. ec meter, 1:1 water 3. ec meter, saturated paste 4. electromagnetic induction 5. salinity probe Examples of some key metadata elements for soils. Is the result expressed on a < 2mm base, whole soil base or some other base? Was the soil field moist, air dry, or oven-dry for the test? Is the result expressed on a field moist, air dry, or oven dry base? Back to Field Measured Properties: Field Measured Properties Rough start at summarizing data fields from multiple labs - Not Field Measured Properties (must be saved and opened-entries may not be visable using some browsers: Laboratory_data.xls Reference spreadsheet defining elements on the 1997 National Soil Survey Laboratory Characterization Data CD: Elements_on_1997_CD.xls |
Communications
Charters
Pedon PC
NASIS Reports - Interpretations
Educational Page
Erosion and Sediment Control
Field Measured Properties
Metadata
Quality Assurance of Point Data
Analysis Tools
NCSS+ Characterization Data