Table 4 Composition of filename and corresponding meanings.

From: A global dataset of remote sensing-based soil critical point and permanent wilting point

 

Variable Name

Parameters [unit]

Meaning

Parameter

tauS

\({\tau }_{S}\) [day]

Short-term timescale of drydown.

ndd

\({n}_{{dd}}\) [times]

Annual times of drydown event.

tauL

\({\tau }_{L}\) [day]

Long-term timescale of drydown.

thetaC

CP [m3/m3]

Critical point.

thetaW

PWP [m3/m3]

Permanent wilting point.

R2

\({R}^{2}\) [-]

Fitting coefficient of drydown curve. Range in [0-1]. The closer to 1, the better.

Sample frequency

f1

1 [day−1]

Once a day.

f3

1/3 [day-1]

Every three days.

Year

From 2002 to 2023.