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North American Regional Climate Simulations with WRF/Noah-MP: Validation and the effect of groundwater interaction. Michael Barlage Mukul Tewari , Fei Chen, Kevin Manning (NCAR) Gonzalo Miguez -Macho (U. Santiago) 14 th WRF Users’ Workshop, 26 June 2013. Domain and Setup.

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North American Regional Climate Simulations with WRF/Noah-MP: Validation and the effect of groundwater interaction

Michael Barlage

MukulTewari, Fei Chen, Kevin Manning (NCAR)

Gonzalo Miguez-Macho (U. Santiago)

14th WRF Users’ Workshop, 26 June 2013


Domain and setup
Domain and Setup WRF/Noah-MP: Validation and the effect of groundwater interaction

  • Two six-month 30km simulations starting Feb 25

  • 2002 and 2010

  • Spin-up soil for one year using offline HRLDAS

  • IC/BC from NARR

  • CAM radiation; YSU; Thompson


Lsm setup
LSM Setup WRF/Noah-MP: Validation and the effect of groundwater interaction

  • Default Noah LSM

  • Noah-MP with OPT_RUN=3: free drainage comparable to Noah runoff scheme

  • Noah-MP with OPT_RUN=5: Miguez-Macho & Fan groundwater with equilibrium water table

  • Noah-MP with OPT_BTR=1(Noah) and 2 (CLM)


conductivity WRF/Noah-MP: Validation and the effect of groundwater interaction

Transmisivity

width of flow cross section

Head difference divided by distance (water table slope)

i,j

Cell ij

Qr

R

Q2

Q1

Q3

Plan view

Cross section view

Sg

w

i, j

Q8

Q8

h i,j

Q4

Q4

Q5

Q7

Q6

Mean sea level

Miguez-Macho & Fan water table dynamics in NOAH-MP

Equations:

Mass balance in groundwater storage:

Darcy’s Law for groundwater – river exchange:

Darcy’s Law for lateral groundwater flow:

Water table depth (wtd)

Fan et al, JGR 2007

Miguez-Macho et al., JGR 2007


Climate 2002 and 2010 mam
Climate: 2002 and 2010 MAM WRF/Noah-MP: Validation and the effect of groundwater interaction


Climate 2002 and 2010 jja
Climate: 2002 and 2010 JJA WRF/Noah-MP: Validation and the effect of groundwater interaction


Analysis regions
Analysis Regions WRF/Noah-MP: Validation and the effect of groundwater interaction

  • Based on NCDC Regional Climate Zones

  • Observations: METAR/SYNOP stations, NCDC daily gridded precip


Depth to water table mmf input
Depth to Water Table – MMF input WRF/Noah-MP: Validation and the effect of groundwater interaction

Looks similar to terrain

Focus of this presentation are locations with shallow water table


Regional groundwater recharge 2010
Regional Groundwater Recharge: 2010 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional groundwater recharge 20101
Regional Groundwater Recharge: 2010 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional groundwater recharge 2002
Regional Groundwater Recharge: 2002 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional deep soil moisture 2010
Regional Deep Soil Moisture: 2010 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional deep soil moisture 2002
Regional Deep Soil Moisture: 2002 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional root soil moisture 2010
Regional Root Soil Moisture: 2010 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional root soil moisture 2002
Regional Root Soil Moisture: 2002 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional latent heat flux 2010
Regional Latent Heat Flux: 2010 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional latent heat flux 20101
Regional Latent Heat Flux: 2010 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional latent heat flux 2002
Regional Latent Heat Flux: 2002 WRF/Noah-MP: Validation and the effect of groundwater interaction

Increase LH especially in JJA

Noah

Noah-MP R3

Noah-MP R5


Regional latent heat flux 20021
Regional Latent Heat Flux: 2002 WRF/Noah-MP: Validation and the effect of groundwater interaction

Noah

Noah-MP R3

Noah-MP R5


Regional precipitation 2010
Regional Precipitation: 2010 WRF/Noah-MP: Validation and the effect of groundwater interaction

Hurricane Alex

Black: NCDC climatology Thick Black: NCDC observations

Noah

Noah-MP R3

Noah-MP R5


Regional precipitation 20101
Regional Precipitation: 2010 WRF/Noah-MP: Validation and the effect of groundwater interaction

Hurricane Alex

Black: NCDC climatology Thick Black: NCDC observations

Noah

Noah-MP R3

Noah-MP R5


Regional precipitation 2002
Regional Precipitation: 2002 WRF/Noah-MP: Validation and the effect of groundwater interaction

Black: NCDC climatology Thick Black: NCDC observations

Noah

Noah-MP R3

Noah-MP R5


Regional precipitation 20021
Regional Precipitation: 2002 WRF/Noah-MP: Validation and the effect of groundwater interaction

Black: NCDC climatology Thick Black: NCDC observations

Noah

Noah-MP R3

Noah-MP R5


Temperature 2 meter mam 2010 day
Temperature – 2 meter: MAM 2010 day WRF/Noah-MP: Validation and the effect of groundwater interaction


Temperature 2 meter mam 2010 night
Temperature – 2 meter: MAM 2010 night WRF/Noah-MP: Validation and the effect of groundwater interaction


Temperature 2 meter jja 2010 day
Temperature – 2 meter: JJA 2010 day WRF/Noah-MP: Validation and the effect of groundwater interaction


Temperature 2 meter jja 2010 night
Temperature – 2 meter: JJA 2010 night WRF/Noah-MP: Validation and the effect of groundwater interaction


Temperature 2 meter mam 2002 day
Temperature – 2 meter: MAM 2002 day WRF/Noah-MP: Validation and the effect of groundwater interaction


Temperature 2 meter mam 2002 night
Temperature – 2 meter: MAM 2002 night WRF/Noah-MP: Validation and the effect of groundwater interaction


Temperature 2 meter jja 2002 day
Temperature – 2 meter: JJA 2002 day WRF/Noah-MP: Validation and the effect of groundwater interaction


Temperature 2 meter jja 2002 night
Temperature – 2 meter: JJA 2002 night WRF/Noah-MP: Validation and the effect of groundwater interaction


Dewpoint 2 meter mam 2010 day
Dewpoint WRF/Noah-MP: Validation and the effect of groundwater interaction – 2 meter: MAM 2010 day


Dewpoint 2 meter mam 2010 night
Dewpoint WRF/Noah-MP: Validation and the effect of groundwater interaction – 2 meter: MAM 2010 night


Dewpoint 2 meter jja 2010 day
Dewpoint WRF/Noah-MP: Validation and the effect of groundwater interaction – 2 meter: JJA 2010 day


Dewpoint 2 meter jja 2010 night
Dewpoint WRF/Noah-MP: Validation and the effect of groundwater interaction – 2 meter: JJA 2010 night


Dewpoint 2 meter mam 2002 day
Dewpoint WRF/Noah-MP: Validation and the effect of groundwater interaction – 2 meter: MAM 2002 day


Dewpoint 2 meter mam 2002 night
Dewpoint WRF/Noah-MP: Validation and the effect of groundwater interaction – 2 meter: MAM 2002 night


Dewpoint 2 meter jja 2002 day
Dewpoint WRF/Noah-MP: Validation and the effect of groundwater interaction – 2 meter: JJA 2002 day


Dewpoint 2 meter jja 2002 night
Dewpoint WRF/Noah-MP: Validation and the effect of groundwater interaction – 2 meter: JJA 2002 night


Summary
Summary WRF/Noah-MP: Validation and the effect of groundwater interaction

  • Tested a new groundwater option to Noah-MP that accounts for aquifer interaction

  • Noah-MP performs better than Noah for near surface temperature (with exceptions), though more optimization is likely required

  • Noah-MP performs the same (2002) or regionally worse (2010) for precipitation

  • In regions with low water table depth, upward transport of water:

    • Increases late summer latent heat flux

    • Has little effect on precipitation

    • Improves surface temperature simulation


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