Drought Analysis and Soil Moisture Prediction
- 1 June 1983
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Irrigation and Drainage Engineering
- Vol. 109 (2), 251-261
- https://doi.org/10.1061/(asce)0733-9437(1983)109:2(251)
Abstract
Soil moisture levels are predicted by a simple, conceptual accounting model run with daily rainfall and evaporation inputs. Model output is used to illustrate practical statistical procedures for drought frequency, duration and severity. Frequency is defined by the probability of a drought starting in a given month, duration is determined by run‐length analysis and severity is given in terms of soil moisture level. Predicted moisture contents for the top 100 mm (4 in.) of soil below ryegrass pasture are statistically similar to actual moisture levels measured in Canterbury, New Zealand. For this location, accurate rainfall forecasts could substantially reduce irrigation water demands.Keywords
This publication has 7 references indexed in Scilit:
- Survey of methods for soil moisture determinationWater Resources Research, 1980
- Analysis of surface moisture variations within large‐field sitesWater Resources Research, 1980
- Model for Predicting Plant Yield as Influenced by Water Use1Agronomy Journal, 1974
- Documentation of PROSPER. A model of atmosphere-soil-plant water flowPublished by Office of Scientific and Technical Information (OSTI) ,1974
- AN IRRIGATION SCHEDULING MODEL WHICH INCORPORATES RAINFALL PREDICTIONS1Jawra Journal of the American Water Resources Association, 1972
- A NEW VERSATILE SOIL MOISTURE BUDGETCanadian Journal of Plant Science, 1966
- The actual evapotranspiration as a function of the potential evapotranspiration and the soil moisture tension.Netherlands Journal of Agricultural Science, 1956