A program for evaluating rainfall erosivity indices for tropical conditions

Richard A C Cooke, Terrence Johnson, Joseph Lindsay

Research output: Contribution to journalArticlepeer-review


Erosivity indices are used to quantify the erosive potential of rainfall. Some of these indices have been specifically developed for erosion research under tropical conditions. This program can be used to evaluate indices based on the product of rainfall energy and characteristic intensity (E·I(t)), the product of rainfall amount and characteristic intensity (A·I(t)), or on threshold kinetic energy values (KE > v). Indices can be evaluated for individual rainstorms or for seasonal rainfall. In addition to the evaluation of erosivity indices, the program can also be used for digitizing existing rainfall charts to create a database of breakpoint rainfall, and for generating data sequences in which the correlation structure between rainfall amount and duration and the erosivity indices are preserved. Any of 18 commonly used probability distribution functions can be used to represent each rainfall variable. The program can be run on DOS-based computers with at least 256 K ROM. Use of the program's digitizing options requires a digitizing pad or similar device that can be accessed from an RS232 serial port.

Original languageEnglish (US)
Pages (from-to)101-108
Number of pages8
JournalIAHS-AISH Publication
Issue number253
StatePublished - 1998

ASJC Scopus subject areas

  • Oceanography
  • Water Science and Technology


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