Table 4 Snow17/ SWE2HS parameters, description and value ranges.

From: Spatial modeling of snow water equivalent in the high atlas mountains via a lumped process-based approach

Parameter

Units

UB

LB

Description

Snow17

SCF

0.7

1.4

Snow under-catch correction factor

PXTEMP

°C

-2.0

2.0

Temperature for rain/snow transition

MFMAX

mm °C− 1 (6 h)−1

0.5

2.0

Maximum non-rain melt factor

MFMIN

mm °C− 1 (6 h)−1

0.05

0.49

Minimum non-rain melt factor

UADJ

mm/mb

0.03

0.19

Wind adjustment factor for r rain-on-snow events

MBASE

°C

0.0

1.0

Base temperature for melt during non-rain periods

TIPM

0.1

1.0

Antecedent temperature index parameter

PLWHC

decimal fraction

0.0

1.0

Percent liquid water holding capacity

NMF

mm °C − 1 (6 h)−1

0.05

0.5

Maximum negative melt factor

SWE2HS

\(\:{\varvec{\uprho\:}}_{\mathbf{m}\mathbf{a}\mathbf{x},\mathbf{i}\mathbf{n}\mathbf{i}\mathbf{t}}\)

kg m-3

150.0

300.0

Initial maximum density

\(\:{\varvec{\uprho\:}}_{\mathbf{n}\mathbf{e}\mathbf{w}}\)

kg m-3

50.0

150.0

New snow density

\(\:{\varvec{\upsigma\:}}_{\mathbf{m}\mathbf{a}\mathbf{x}}\)

mm w.e.

100.0

2000.0

Overburden where \(\:{\varvec{\rho\:}}_{\varvec{m}\varvec{a}\varvec{x},\varvec{e}\varvec{n}\varvec{d}}\:\)is reached

\(\:{\varvec{\uprho\:}}_{\mathbf{m}\mathbf{a}\mathbf{x},\mathbf{e}\mathbf{n}\mathbf{d}}\)

kg m-3

300.0

600.0

Final maximum density

\(\:\mathbf{R}\)

1.0

110.0

Settling resistance

\(\:{\varvec{\upvartheta\:}}_{\mathbf{m}\mathbf{e}\mathbf{l}\mathbf{t}}\)

0.05

2.0

Melt metamorphism transition rate

  1. The parameter boundaries are based on33,39,57respectively for Snow17 and SWE2HS. LB and UB represent the lower and upper boundary, respectively.