Paper
Characterizing Soil Moisture Memory by Soil Moisture Autocorrelation
- Authors:
- Mohammad Mahfuzur Rahman; Minjiao Lu
- Abstract
- An autocorrelation value only implies the strength of the soil moisture memory (SMM) without specifying its statistical significance. This study proposed a conversion of autocorrelation values into a time scale considering statistical significance at 95% confidence level. It computed a SMM time scale of 56.13 days for the Spoon river basin, Illinois, and was highly consistent with previous regional estimations (1.8-2.1 months). Additionally, the time scales showed a fair correlation with the 30-day-lagged autocorrelations (R2=0.58). This time scale is easily understandable and provides more information than simple autocorrelations, suggesting significant autocorrelations deal with just a single number.
- Keywords
- Soil Moisture Autocorrelation; Soil Moisture Memory; Soil Moisture Persistence; Soil Moisture Memory Timescale; Xinanjiang Model
- StartPage
- 83
- EndPage
- 92
- Doi
- 10.5963/JWRHE0401007