i
Derivation of Soil Moisture Recovery Relation Using Soil Conservation Service (SCS) Curve Number Method
-
2018
Source: Water, 10(7), 21.
[PDF-7.02 MB]
Details:
-
Journal Title:Water
-
Personal Author:
-
NOAA Program & Office:
-
Description:Soil moisture retention (SMR) capacity plays a key role in estimating the direct runoff when a multi-pulse storm event occurs. It is very important to know how much SMR will be recovered during the intervals of no rain of a multi-pulse storm. This study developed a new approach for derivation of the SMR recovery curve (R-curve) at sub-daily time-scales using the Curve Number (CN) method. The methodology was applied using complex storm events in the Napa River basin, California. The R-curve is classified into three sections depending on the recovery rate of SMR during the inter-storm interval of no rain (INR), and this study defines the characteristics. The first section of the R-curve (INR 0-21 h with 0.97 mm/h) is described as gradually recovering SMR, since water is being infiltrated and the upper soil layer is not fully saturated. The second section (INR 21-36 h with 2.11 mm/h) is defined as steeply recovering S due to downward drainage (sub-surface/inter flows) and evaporation without infiltration. The third section (INR 36-68 h with 0.34 mm/h) is described as gradually decreasing recovery dependent on evaporation since percolation and drainage have almost stopped.
-
Source:Water, 10(7), 21.
-
Document Type:
-
Rights Information:CC BY
-
Compliance:Submitted
-
Main Document Checksum:
-
File Type:
Supporting Files
-
No Additional Files
More +
Related Documents
-
[PDF - 1.09 MB]
[PDF - 5.79 MB]
[PDF - 5.27 MB]
