Hydrological evaluation of the Noah-MP land surface model for the Mississippi River Basin

Xitian Cai, Zong Liang Yang, Cédric H. David, Guo-Yue Niu, Matthew Rodell

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

This study evaluates regional-scale hydrological simulations of the newly developed community Noah land surface model (LSM) with multiparameterization options (Noah-MP). The model is configured for the Mississippi River Basin and driven by the North American Land Data Assimilation System Phase 2 atmospheric forcing at 1/8°resolution. The simulations are compared with various observational data sets, including the U.S. Geological Survey streamflow and groundwater data, the AmeriFlux tower micrometeorological evapotranspiration (ET) measurements, the Soil Climate Analysis Network (SCAN)-observed soil moisture data, and the Gravity Recovery and Climate Experiment satellite-derived terrestrial water storage (TWS) anomaly data. Compared with these observations and to the baseline Noah LSM simulations, Noah-MP shows significant improvement in hydrological modeling for major hydrological variables (runoff, groundwater, ET, soil moisture, and TWS), which is very likely due to the incorporation of some major improvements into Noah-MP, particularly an unconfined aquifer storage layer for groundwater dynamics and an interactive vegetation canopy for dynamic leaf phenology. Noah-MP produces soil moisture values consistent with the SCAN observations for the top two soil layers (0-10 cm and 10-40 cm), indicating its great potential to be used in studying land-atmosphere coupling. In addition, the simulated groundwater spatial patterns are comparable to observations; however, the inclusion of groundwater in Noah-MP requires a longer spin-up time (34 years for the entire study domain). Runoff simulation is highly sensitive to three parameters: the surface dryness factor (α), the saturated hydraulic conductivity (k), and the saturated soil moisture (θmax). Key Points Comprehensive evaluation of Noah-MP in simulating major hydrological variables Noah-MP shows significant improvements in simulating the hydrological cycle Simulations of runoff, soil moisture, and TWS are highlighted

Original languageEnglish (US)
Pages (from-to)23-38
Number of pages16
JournalJournal of Geophysical Research: Space Physics
Volume119
Issue number1
DOIs
StatePublished - Jan 16 2014

Fingerprint

Mississippi River (US)
river basins
soil moisture
Soil moisture
ground water
Catchments
Groundwater
land surface
river basin
Rivers
drainage
water storage
Runoff
groundwater
evaluation
climate
evapotranspiration
network analysis
soils
Evapotranspiration

Keywords

  • evaluation
  • hydrology
  • land surface model
  • Mississippi River Basin
  • multiphysics
  • Noah

ASJC Scopus subject areas

  • Atmospheric Science
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

Hydrological evaluation of the Noah-MP land surface model for the Mississippi River Basin. / Cai, Xitian; Yang, Zong Liang; David, Cédric H.; Niu, Guo-Yue; Rodell, Matthew.

In: Journal of Geophysical Research: Space Physics, Vol. 119, No. 1, 16.01.2014, p. 23-38.

Research output: Contribution to journalArticle

Cai, Xitian ; Yang, Zong Liang ; David, Cédric H. ; Niu, Guo-Yue ; Rodell, Matthew. / Hydrological evaluation of the Noah-MP land surface model for the Mississippi River Basin. In: Journal of Geophysical Research: Space Physics. 2014 ; Vol. 119, No. 1. pp. 23-38.
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