NASA's Land Information System as a Testbed for JCSDA Partners and Investigators Christa D. Peters-Lidard, Ph.D. Physical Scientist and Head, Hydrological.

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Presentation transcript:

NASA's Land Information System as a Testbed for JCSDA Partners and Investigators Christa D. Peters-Lidard, Ph.D. Physical Scientist and Head, Hydrological Sciences Branch NASA/ Goddard Space Flight Center(GSFC), Code 614.3, Greenbelt, MD

Acknowledgements LIS was originally funded under NASA ESTO/CT CAN-00-OES-01, with additional support from NASA ESTO/AIST NRA-02-OES-04, and AFWA Award No: NVSHAX C. D. Peters-Lidard 1, P. R. Houser 1,2, S. V. Kumar 1, Y. Tian 1, J. Geiger 1, M. Garcia 1, S. Olden 1, L. Lighty 1, J. L. Eastman 1, J. Sheffield 3, E. F. Wood 3, P. Dirmeyer 4, B. Doty 4, J. Adams 4, K. Mitchell 5, J. Meng 5, H. Wei 6, J. Eylander 7 1 NASA, Goddard Space Flight Center Hydrological Sciences Branch, Code 614.3, Greenbelt, MD 2 George Mason University, Climate Dynamics Program and Center for Research in Environment and Water 3 Department of Civil and Environmental Engineering Princeton University, Princeton, NJ 4 Center for Ocean Land Atmosphere Studies (COLA) Calverton, MD 5 NCEP Environmental Modeling Center NOAA/NWS, Camp Springs, MD 6 Air Force Weather Agency Air & Space Sciences Directorate, Offut AFB, NE

LIS Background LIS Uncoupled Benchmarking –CEOP Sites –NOAA/NCEP –AFWA/AGRMET LIS/WRF/GCE Coupled Benchmarking –IHOP Ongoing Work and Future Directions Outline

Topography, Soils Land Cover, Vegetation Properties Meteorological Forecasts, Analyses, and/or Observations Snow Soil Moisture Temperature Land Surface Models Data Assimilation Modules Soil Moisture & Temperature Evaporation Sensible Heat Flux Runoff Snowpack Properties Inputs Outputs Physics Applications LIS Background Weather/ Climate Water Resources Homeland Security Military Ops Natural Hazards

N orth American LDAS 1/8 Degree Resolution Mitchell et al., JGR, 2004 G lobal LDAS 1/4 Degree Resolution L and I nformation S ystem ( Multi-Resolution Ensemble LDAS LIS Heritage: NLDAS and GLDAS Rodell et al., BAMS, 2004 Kumar et al., EMS, 2006

25km 5km1km The Value of 1km Land Modeling: Exploit EOS and NPOESS

CEOP Benchmarking at Reference Sites

CLM/Noah/Mosaic ensemble energy fluxes All CEOP reference sites EOP-1 July 1-Sept 30, 2001 CEOP Benchmarking

CEOP Flux aggregation: Bondville, IL

Initial Benchmarking at NCEP Average Diurnal Cycles, March 2003 LIS with experimental mode of GFS on the gaussian horizontal grid of T62 Forcing: NCEP Global Reanalysis II, AGRMET radiation and CMAP precipitation. 30% more efficient in computing time CONUS AverageEurope Average Sensible Heat Ground Heat Latent Heat Net Radiation

NCEP Benchmarking with LIS: 25-year T126 Illinois 2-meter Soil Moisture [mm] Total Anomaly Vtype 12 Climatology Source: Jesse Meng

AFWA/AGRMET Benchmarking Benchmark period: 02 December February, 2006 Global Intercomparison Dates: 02 December December January February 2006 Point Intercomparisons at Sample Locations: USA, Washington, DC, 38.85N 77.04W Iraq, Baghdad, 33.20N, 44.30E Pyongyang, North Korea, 39.03N, E Zimbabwe, Harare, 17.43S, 31.02E

AGRMET-LIS Global Intercomparison Downward Shortwave (Wm-2) 21 December 2005, 1200UTC

3.1 Global Intercomparison (AGR-LIS): 10cm Soil Moisture 21 December 2005, 2100UTC

AGRMET-LIS Point Intercomparisons: Iraq, Baghdad

AGRMET-LIS Point Intercomparisons: Zimbabwe, Harare

Land Surface Models (LIS) Ocean Models Atmos. Models (WRF/GCE/ GFS/GEOS) Coupled: LIS as an Earth System Model Land Component

The Land Information System (LIS) and Weather Forecasting LSM Initial Conditions WRF LSM Physics (Noah, Catchment, CLM, VIC, HYSSiB) Coupled or Forecast Mode Uncoupled or Analysis Mode Global, Regional Forecasts and (Re-)Analyses Station Data Satellite Products ESMF

Central US, Southern Great Plains Coupled LIS/WRF Case Study: May-June 2002 International H2O Project (IHOP) 1.Radiation Coupling Experiments: June 12, IHOP Case Studies: June 12, 2002 and May-June 2002

WRF/ARW Model Setup 500x500 Horizontal Points at 1km ΔX 47 Vertical Levels from 10m to 18km AGL Lin et al microphysics (Rain, Ice, Graupel, Snow, Cloud Water) RRTM longwave, Dudhia Shortwave (Account for different water phases) NOAH LSM from the Land Information System (LIS) Ingested North American Regional Reanalysis (32km mesh size) into WRFSI to create initial and boundary meteorological conditions for a 24 hour integration at 3 hour intervals

WRF-LIS Precipitation vs. Radiation Coupling Time Step X1=6 Seconds X3=18 Seconds X10=60 SecondsX100=600 Seconds Total accumulated 24-hour precipitation (mm) for update frequencies at every (6 seconds), every 3 (18 seconds), every 10 (60 seconds), and every 100 (600 seconds) time steps. Eastman et al., GRL, 2006, submitted.

Rain Rate PDF vs. Radiation Coupling Time Step

Computational Overhead of Increased Radiation Updates

WRFSI Initial Soil State LIS Initial Soil State (NLDAS+STATSGO) Soil Temperature (K) Soil Moisture (kg/kg)

WRF-LIS forecast Using default soil moisture initialization (WRFSI) WRF-LIS forecast Using LIS soil moisture with 10 year uncoupled spinup using StageII precipitation inputs Soil Moisture Impact on Precipitation Forecast IHOP, June 12-13, Hour Accumulated Precipitation (mm) Observed NOAA/NCEP Stage II Radar+Gauge

Observed: Radar+Gauge WRF/LIS Modeled using Radar+Gauge precipitation for LIS uncoupled Spinup WRF/LIS Modeled using NOAA Model precipitation (GDAS) for LIS uncoupled Spinup WRF/LIS Modeled using WRF Standard Initialization (WRFSI) w/o LIS spinup GDAS=Global Data Assimilation System (NOAA/National Centers for Environmental Prediction (NCEP)) Land Impact on Precipitation Forecast IHOP, June 12-13, 2002

Ongoing Work and Future Directions Ongoing –Continued work with AFWA on EnKF Support, Precipitation enhancements, WRF Coupling (NCAR) –Collaboration with NCEP on NLDAS Phase 2, NLDAS-E –Collaboration with NOAA/OHD on SAC/Snow-17 –Collaboration with GMAO on shared subsystems (L- ANA, CATCH) Future –Coupling CRTM and MEM –Coupling to GFS/CFS and GEOS-5 via ESMF –Provide LIS testbed to all JCSDA land partners to facilitate R2O

OANA Ocean analysis GEOS-5 GCM STRUCTURE AGCM CAP HISTORY RADIATION COLUMN PHYSICS SOLAR IR MOIST TURB SURFACE CHEM LAKE OCEAN SKIN DYNAMICS GWDFVCORE (Ts,Fi...) VEGDYN CATCH ICE LAND SURFACE DYNAMICS Data AGCM COUPLED Ocean Data OGCM Poseidon OBIO CICE OGCM L-ANA EnKF

GEOS-5 ”Intermediate SCM” STRUCTURE CAP HISTORY G5-LIS COUPLER COLUMN PHYSICS TURB SURFACE VEGDYN CATCH LAND L-ANA EnKF LIS Data System

LIS Offline Forcing of G5 Components LIS CATCH L-ANA EnKF LIS Data System CATCH CLM GEOS-5 components

Queries a state instead of a component Each componen t is self- consistent Extensions to perturbation component