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posted on 2024-02-15, 18:18 authored by U.S. Salinity Laboratory

Statistical software package for estimating field scale spatial salinity patterns from electromagnetic induction signal data (for Windows XP).

The ESAP software package currently contains five programs:

  1. ESAP-RSSD Designed to generate optimal soil sampling designs from bulk soil electrical conductivity survey information
  2. ESAP-Calibrate Designed to estimate both stochastic (regression model) and deterministic (soil theory based) calibration equations; i.e., the equations which you will ultimately use to predict the spatial values of one or more soil variables from your EM survey data.
  3. ESAP-SaltMapper Used to produce high quality 1-D or 2-D graphical output of your EM survey data and/or predicted soil variables. This software can also be used to map out the locations of tile lines in saline fields, using EM survey data.
  4. ESAP-SigDPA Signal Data pre-processing software for managing raw Conductivity/GPS data file.
  5. ESAP-DPPC Calculator Used to convert insertion four-probe conductivity data into soil salinity estimates.

All five programs have been designed to work together in a seamless and efficient manner, and each program employs a simple, easy to learn graphical user interface.

Resources in this dataset:




Data contact name

Skaggs, Todd

Data contact email


United States Department of Agriculture


  • Not specified

ISO Topic Category

  • environment

National Agricultural Library Thesaurus terms

computer software; soil sampling; electrical conductivity; surveys; regression analysis; equations; edaphic factors; global positioning systems; soil salinity; user interface; models; salinity; graphs; correlation; soil temperature; texture; water content; Natural Resources Earth and Environmental Sciences

OMB Bureau Code

  • 005:18 - Agricultural Research Service

OMB Program Code

  • 005:040 - National Research

Primary article PubAg Handle

Pending citation

  • No

Public Access Level

  • Public

Preferred dataset citation

U.S. Salinity Laboratory (2019). ESAP. United States Department of Agriculture.